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Journal articles on the topic 'Mixed ligand species'

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Published: 5 June 2025

Last updated: 1 August 2025

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1

Zahid, Kanwal, Shazia Nisar, Saima Imad, Shazia Perveen, Shazia Ghaffar, and Nasreen Fatima. "Synthesis and Characterization of Homo and Mixed Ligand Complexes of Fe(III) with Hydroxypyridinone and Hydroxypyranone Type Ligands." Pakistan Journal of Scientific & Industrial Research Series A: Physical Sciences 63, no. 1 (2020): 12–17. http://dx.doi.org/10.52763/pjsir.phys.sci.63.1.2020.12.17.

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 Hydroxypyridinone and hydroxypyranone are known to be used for the treatment of iron overload by chelation therapy for a long time. Both the ligands have their own side effects when used as medicines. In the present study homo and mixed ligand complexes of both the ligands with iron were prepared and characterized by UV-visible spectrophotometry, Potentiometric study, IR spectroscopy, SEM/EDX and XRD. Overlay spectra obtained from UV-visible spectroscopy of our studied system show the formation of different types of species and confirm that mixed ligand complex is different from the oth

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2

M., Sivasankaran Nair, and A. Neelakantan M. "Solution behaviour of mixed ligand complexes of nickel(II) involving penicillin group drugs and sulfur containing ligands under physiological conditions." Journal of Indian Chemical Society Vol. 77, Aug 2000 (2000): 373–75. https://doi.org/10.5281/zenodo.5868329.

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Department of Chemistry, Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli-627 012. India Department of Chemistry, National Engineering College, K. R. Nagar, Kovilpatti-628 503, India <em>Munuscript received 22 March 2000. accetped 23 April 2000</em> Analysis of the pH-titration data obtained in aqueous perchlorate medium at <em>37° </em>and <em>I = </em>0.15 mol din<sup>-3</sup> (NaCIO<sub>4</sub>) for Ni<sup>ll</sup>-A-B mixed ligand systems [A = 6apa or amp; B = cys, smc, pen or cya) shows the presence of mixed ligand complex species NiABH, NiAB and/or NiAB-<s

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3

M., Sivasankaran Nair, and Subbalakshmi G. "Multiple equilibria involved in some nickel(II) mixed ligand complex systems containing catecholic and dipeptide ligands." Journal of Indian Chemical Society Vol. 77, Jan 2000 (2000): 26–28. https://doi.org/10.5281/zenodo.5861391.

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Department of Chemistry, Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli-627 012, India <em>Manuscript received 10 February 1999, accepted 9 July 1999</em> Multiple equilibrium studies on Ni<sup>II</sup>-dopamineklopa(A)-glycyl-L-tryosine and L-tyrosylglycine(B) systems show the formation of NiABH<sub>2</sub>, NiABH or NiAB mixed ligand complexes. The results indicate that dopa is ambidentate, i.e. in NiABH<sub>2</sub> species it binds the metal ion in a glycine-like mode, while it coordinates in a pyrocatecholic mode in NiABH and NiAB complexes. Dopamine(A) binds in a pyrocatech

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Seema, Kumari Yadav, Upadhayaya (Dwivedi) Neerja, Nair (Ahuja) R., and Dwivedi K. "Solution study of ternary systems involving transition metals, dipeptide and catecholic ligands." Journal of Indian Chemical Society Vol. 88, Oct 2011 (2011): 1599–603. https://doi.org/10.5281/zenodo.5790685.

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School of Studies in Chemistry, Jiwaji University, Gwalior-474 011, Madhya Pradesh, India <em>E-mail</em>: seema_chem@rediffmail.com vijaya Raje Govt. Girls P.G. College, Morar, Gwalior, Madhya Pradesh, India <em>Manuscript received 08 June 2010, revised 08 March 2011, accepted 09 March 2011</em> Glycylglycine (Giygly), L-3,4-dihydroxyphenylalanine (DOPA) and L-tyrosine (Tyr) are three important ligands in biological systems. In order to draw inference on their complexation behaviour, solution studies in mixed ligand systems involving these ligands with Ni<sup>II</sup>, Co<sup>II</sup> and Cd<

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RAMESH, PANGUNOORI, and RAM KASHI. "Mixed Ligand Chelates of N-Phosphonomethyl Glycine." Journal of Indian Chemical Society Vol. 72, Jun 1995 (1995): 375–79. https://doi.org/10.5281/zenodo.5904955.

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Department of Chemistry, Osmania University, Hyderabad-500 007 <em>Manuscript received 17 August 1993, revised 6 December 1993, accepted 29 December 1993</em> The formation constants of 1 : 1 and 1 : 2 binary ([M·A] and [M-A<sub>2</sub>]) and 1 : 1 : 1 ternary metal chelates ([M·A·L] or [M·L'-A], where A = <em>N</em>-phosphonomethyl glycine (NPMG), L = glycine (Giy) and β-alanine (Ala), L'= 5-sulphosalicylic acid (5-SSA), oxalic acid (Oxa), 1,10-phenanthroline (Phen), 2,2'-bipyridyl (Bipy) and iminodiacetic acid (lmda) and M = Co<sup>II</sup>, Ni<su

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6

Santiso-Quinones, Gustavo, and Rafael E. Rodriguez-Lugo. "A mixed chloride/trifluoromethanesulfonate ligand species in a ruthenium(II) complex." Acta Crystallographica Section C Crystal Structure Communications 69, no. 8 (2013): 859–61. http://dx.doi.org/10.1107/s0108270113019057.

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The compound [2-(aminomethyl)pyridine-κ2N,N′][chlorido/trifluoromethanesulfonato(0.91/0.09)][(10,11-η)-5H-dibenzo[a,d]cyclohepten-5-amine-κN](triphenylphosphane-κP)ruthenium(II) trifluoromethanesulfonate dichloromethane 0.91-solvate, [Ru(CF3SO3)0.09Cl0.91(C6H8N2)(C15H13N)(C18H15P)]CF3SO3·0.91CH2Cl2, belongs to a series of RuIIcomplexes that had been tested for transfer hydrogenation, hydrogenation of polar bonds and catalytic transfer hydrogenation. The crystal structure determination of this complex revealed disorder in the form of two different anionic ligands sharing the same coordination s

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7

Hamil, Abdusalam, Marei El-ajaily, Lila Basher, Asma Ramli, Miloud Miloud, and S. A. Saad. "Mixed ligand chelates using Schiff base and 2-aminobenzoic acid as ligands." Libyan Journal of Medical Research 18, no. 1 (2024): 1–17. http://dx.doi.org/10.54361/10.26719/llmr18-1.01.

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The ligands under investigation were used to form five mixed ligand chelates with some transition metal ions. The ligands and their chelates were offered to several analytical and spectroscopic tools. Based on the obtained results; an octahedral structure was proposed for all the chelates. Also, the antibacterial activity was tested on two types of bacteria; Staphylococcus aureus and E.coli species.

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8

Buist, Richard J., Steve C. F. Au-Yeung, and Donald R. Eaton. "The crystal field strength of the nitro ligand and the chemistry of the hexanitrocobaltate(III) anion." Canadian Journal of Chemistry 63, no. 12 (1985): 3558–67. http://dx.doi.org/10.1139/v85-584.

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The chemical and spectroscopic properties of the hexanitrocobaltate(III) anion are not in accord with the classification of the N-bonded nitrite ion as a strong field ligand. The nitro groups are rapidly displaced by other ligands, including water, and in dilute aqueous solution spontaneous reduction to Co(II) occurs. Comparison of solid state and solution vibrational and 59Co nmr spectra demonstrates that the principal species in solution is the same as in the solid. All ligands are N-bonded. However, within 2 or 3 min of dissolution new species appear. An electron transfer mechanism for liga

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9

Onyenze, Ugochukwu, Ifeanyi Otuokere, and Joy Emmanuel. "Synthesis, Characterization and Anti-bacterial Screening of Fe(II) Mixed Ligand Complex of Ofloxacin with Ascorbic Acid." European Journal of Scientific Research and Reviews 1, no. 2 (2024): 112. http://dx.doi.org/10.5455/ejsrr.20240607014716.

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Aim: Mixed ligand complexes play a major role in biological processes by binding with small molecules and activating the enzymes for nuclease activity. This study is aimed at synthesizing, characterizing, and the antibacterial studies of 9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H- Pyridol[1,2,3,-de]-1,4-benzoxazine-6-carboxylic acid (ofloxacin) and ascorbic acid metal complex. Methods: Iron(II) mixed ligand complex of ofloxacin and ascorbic acid was synthesized using the reflux method. The resulting complex, [Fe(Ofl)(Asc)] was characterized by its color, solubility, mel

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Davis, Carol A., Jeong Kim, Leonard F. Lindoy, Seong-Hwa Lee, and Anthony J. Leong. "Macrocyclic Ligand Design. Structure - Function Relationships Underlying the Interaction of Zinc(II), Cadmium(II), Silver(I) and Lead(II) with Mixed-Donor Macrocyclic Ligands." Australian Journal of Chemistry 51, no. 3 (1998): 189. http://dx.doi.org/10.1071/c97188.

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An investigation of the interaction of zinc(II), cadmium(II), silver(I) and lead(II) with a series of mixed-donor dibenzo-substituted macrocyclic ligands, incorporating O2N3-, O2N4-, O3N2-, O3N3-, O4N2- and O2N3S-donor sets, has been carried out. The log K values for the respective complexes in 95% methanol (I = 0·1; Et4NClO4, 25°C) have been determined potentiometrically. All ligands form 1 : 1 (metal/ligand) complexes with the above metal ions although in isolated cases species of type MLH2+ were also observed. An investigation of the effect of variation of ligand structure on the respective

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11

Baldwin, D., LF Lindoy, and DP Graddon. "Comparative Calorimetric and 1H N.M.R. Studies of the Interaction of Ag(I) With a Series of Mixed-Donor Macrocycles Incorporating Nitrogen, Oxygen and or Sulfur Donor Atoms." Australian Journal of Chemistry 41, no. 9 (1988): 1347. http://dx.doi.org/10.1071/ch9881347.

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The interaction of silver ion with a range of mixed-donor macrocyclic ligands incorporating nitrogen, oxygen and/or sulfur donors has been investigated. Complementary calorimetric and n.m.r. studies in acetonitrile (and its deuterated derivative) were used to investigate the nature of the equilibria present as the metal/ ligand ratio was varied. In all systems the formation of a 1 : 1 species was observed, with a 1:2 (metal/ ligand ) species also being formed in the presence of excess ligand in the majority of cases. Enthalpies of formation for the various complexes have been determined. Stepw

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12

Salith, Hauwa S., Haruna D. Aliyu, and Jamila S. Abdulhadi. "Manganese 11 Complexes of Salycilhydroxamix Acid with Aniline and Ammonia with Its Properties the Effect on Microorganism." Applied Sciences Research Periodicals 2, no. 4 (2024): 43–52. http://dx.doi.org/10.63002/asrp.24.419.

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The salicylichyroxamic acid (SHA) its complex of Mn (II) along with their mixed ligand complexes of ammonia and aniline were prepared in high yields. Both the ligands and complexes were both soluble in methanol, DMSO but are insoluble in chloroform and distilled water. Their melting point were high and falls between 1910C - 400 0C. The IR spectra of the synthesized compound showed the coordination of the ligand through the oxygen of the phenolic NOH and C=O functional groups to the metals. The electronic spectra of the complexes in methanol showed some observable absorption bands of the follow

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13

Killa, Hamada M., El-Sayed M. Mabrouk, and Abdel Fattah A. Abdel Fattah. "Differential pulse polarographic studies on simple and mixed ligand complexes of Cd(II) with diaminopropane and adipate ligands." Collection of Czechoslovak Chemical Communications 55, no. 10 (1990): 2381–89. http://dx.doi.org/10.1135/cccc19902381.

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The composition, stability and equilibria of ternary complexes of Cd(II) with adipate (Adp) as primary ligand and 1,3-diaminopropane (DAMP) as secondary ligand have been studied using differential pulse (d.p.) polarography. The results reveal the presence of three ternary complexes with stoichiometries 1:1:1, 1:1:2, and 1:2:1. Also, the composition and stability of binary species have been determined. The reduction of simple and mixed ligand complexes is reversible and diffusion controlled. The formation constants of mixed complexes were calculated and compared with the observed values.

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14

Shankar, Vijay. "Formation and Stability of Mixed Ligand Complexes with Some Metal Ions of Transition Metals." Anusandhaan - Vigyaan Shodh Patrika 8, no. 1 (2020): 18–21. https://doi.org/10.22445/avsp.v8i1.3.

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Mixed ligand complexes of the ligand Nitrilotriacetic acid/ NTA (A) and Adenine (B) with Co(II), Ni(II), Cu(II) and Zn(II) metal ions have been carried out potentiometrically at temperature 30 and at constant ionic strength I = 0.1 M NaNO3.The overall stability constants (log β) have been evaluated and refined by SCOGS computer Programme. The mixed ligand complex species of the type MAB have been analyzed.

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15

(Miss), SUJATA KHANNA, ALKA PRADHAN (Miss), and K. CHATURVEDI G. "Potentiometric Studies on the Formation of Quaternary Mixed Ligand Complexes of Some Transition Metal Ions." Journal of Indian Chemical Society Vol. 61, Apr 1984 (1989): 302–5. https://doi.org/10.5281/zenodo.6319615.

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Chemical Laboratories, Agra College, Agra-282 002 <em>Manuscript received 10 April 1983, revised 21 November 1983, accepted 13 February 1984</em> The formation of mixed ligand complexes of the type MABC, where M(ll) = Cu(II), Ni(ll) or Zn(ll), A=iminodiacetic acid (IMDA), B=malonic acid (maln) and C= ethylenediamine (en) or 1,2- propanediamine (pn) have been investigated by _<em>p</em>H metric titrations. Evidence is provided for the simultaneous addition of primary ligand (A) and secondary ligand (B) to the metal ion resulting in the formation of an intermediate ternary species, MAD, to

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Kireenko, Marina M., Kirill V. Zaitsev, Sergey S. Karlov, Mikhail P. Egorov та Andrei V. Churakov. "Crystal structure of a mixed-valence μ-oxide Sn12cluster". Acta Crystallographica Section E Structure Reports Online 70, № 11 (2014): m378—m379. http://dx.doi.org/10.1107/s1600536814023460.

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The mixed-valence μ-oxide Sn12cluster, decacarbonyltetra-μ4-oxido-hexa-μ3-oxido-tetrakis[μ-2,2′-(pyridine-2,6-diyl)bis(1,1-diphenylethanolato)]decatin(II)ditin(IV)dimolybdenum(O)(2Mo—Sn) toluene heptasolvate, [Mo2Sn12(C33H27NO2)4O10(CO)10]·7C7H8, has a crystallographically imposed inversion centre. The asymmetric unit also contains three and a half toluene solvent molecules, one of which is disordered about a centre of symmetry. The complex molecule comprises six distinct Sn atom species with four different coordination numbers, namely 3, 4, 5, and 6. The SnIIatoms forming the central Sn10O10c

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Matshwele, James T. P., Florence Nareetsile, Daphne Mapolelo, et al. "Synthesis of Mixed Ligand Ruthenium (II/III) Complexes and Their Antibacterial Evaluation on Drug-Resistant Bacterial Organisms." Journal of Chemistry 2020 (March 19, 2020): 1–10. http://dx.doi.org/10.1155/2020/2150419.

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The potential antimicrobial properties of a tridentate polypyridyl ligand 4-butoxy-N,N-bis(pyridin-2-ylmethyl)aniline (BUT) 1 and its corresponding mixed ligand ruthenium complexes were investigated on drug-resistant and non-drug-resistant bacterial species. The ligand and its complexes were synthesized and successfully characterized by 1H NMR, UV/Vis, and FTIR spectra; ESI-MS; and magnetic susceptibility. Electronic spectra and magnetic susceptibility of these Ru(II)/(III) complexes suggest that they are of a low spin crystal field split, where the Ru(III) is a d5 and Ru(II) d6 low spin. Thes

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Krishna, Srivastava, Srivastava Alka, K. Gautam Devendra, and Prasad Jagdish. "Cyclic voltammetric and spectral studies of some complexes in copper(II)- diethyldithiocarbamate-2-methylimidazole mixed ligand systems." Journal of Indian Chemical Society Vol. 93, Dec 2016 (2016): 1337–42. https://doi.org/10.5281/zenodo.5595854.

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Department of Chemistry, University of Allahabad, Allahabad-211 002, Uttar Pradesh, India <em>E-mail</em> : dr_krishna_s@yahoo.co.in <em>Manuscript received online 18 April 2016, accepted 03 May 2016</em> The electrochemical and spectral properties of copper(II) complexes in Cu<sup>II</sup>-diethyldithiocarbamate-2- methylimidazole mixed ligand systems in different molar ratios (1 : 1 : 2, 1 : 1 : 100, 1 : 2 : 2 and 1 : 2 : 100) in acetone medium containing 0.2 <em>M</em> sodium perchlorate as a supporting electrolyte have been studied by using cyclic voltammetry (CV). UV-Visible absorption sp

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Guseva, Polina B., Alexander R. Badikov, Oleg S. Butorlin, et al. "Complexation of Lanthanides(III) Ions with Terephthalic Acid in Aqueous Solutions by Potentiometric Titration Combined with Photoluminescence Spectroscopy." Chemistry 7, no. 2 (2025): 57. https://doi.org/10.3390/chemistry7020057.

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The complexation behavior of lanthanide(III) ions with terephthalic acid (1,4-benzene-dicarboxylic acid) in 0.01 M KNO3 aqueous solutions was studied across a broad pH range and at two metal-to-ligand ratios using potentiometric titration combined with photoluminescence spectroscopy. Chemometric analysis of titration curves enabled the determination of relative molar fractions, stability constants, and probable stoichiometry of the formed complexes. In solutions with a 1:2 metal-to-ligand ratio, bis-complexes (two terephthalate ligands per lanthanide ion) predominated, while ligand-rich condit

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Li, Kuangjun, Yuting Li, Rong Feng, and Jing Wu. "Enhancing of Luminol-H2O2 Chemiluminescence System by Bimetallic Metal–Organic Frameworks with Mixed Ligands." Catalysts 14, no. 12 (2024): 895. https://doi.org/10.3390/catal14120895.

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Chemiluminescence (CL) is regarded as a better method for the detection of reactive oxygen species (ROS). However, the weak CL intensity prevents its further application. Many nanomaterials have been developed to enhance CL intensity, and mixed-ligand MOFs incorporating additional metals or organic ligands exhibit high efficiency in catalyzing. In this work, one kind of bimetallic mixed-ligand metal–organic framework (Ni-Co m-MOF) was synthesized using solvothermal methods. The material was morphologically characterized and demonstrated to be a dense and spherical flower-like structure. The ad

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Abbas, Rana Abdulilah, Amer J.jarad, Ion Marius Nafliu, and Aurelia Cristina Nechifor. "Synthesis, Characterization and Antibacterial Activity from Mixed Ligand Complexes of 8-Hydroxyquinoline and Tributylphosphine for Some Metal Ions." Revista de Chimie 70, no. 1 (2019): 36–40. http://dx.doi.org/10.37358/rc.19.1.6846.

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Co+2, Ni+2, Cu+2 as well Zn+2 compounds mixed ligand from 8-hydroxyquinoline(8-HQ) also tributylphosphine (PBu3) have been attended at aquatic ethyl alcohol for (1:2:2) (M:8-HQ:PBu3). Produced complexes have been identified by utilizing atomic absorption flame, FT-IR as well UV-Vis spectrum manners also magnetic susceptibility as well as conductivity methods. At addendum antibacterial efficiency from the ligands as well complexes oboist three species about bacteria have been as well examined. Ligands and their complexes show good bacterial efficiencies. Of the gained datum the octahedral geome

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A., S. GAHLAUT, C. DWlVEDI P., and C. SHARMA R. "Studies on Triligand Complexes of some Lanthanones." Journal of Indian Chemical Society Vol. 62, Sep 1985 (1985): 651–53. https://doi.org/10.5281/zenodo.6321985.

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Department of Chemistry, Agra University, Agra-282 004 <em>Manuscript received 26 November 1984, accepted 11 September 1986</em> The results of pH-metric studies on the formation of 1 : 1 : 1 : 1 MLL'L" quaternary complexes, where M-La<sup>III</sup>, Pr<sup>III</sup>, Nd<sup>III</sup> ; L =1,2-diatninocyclohexane-<em>N,N,N<sup>'</sup>,N'</em>- tetraacetic acid (CDTA) ; L'=1,2-dihydroxysuccinic acid (tartaric acid) ; and L" = 2- butenedioic acid (maleic acid), have been discussed in the present paper. The calculated values of formation constants and free ener

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Fryzuk, Michael D., Peihua Yu, and Brian O. Patrick. "Synthesis, structure, and reactivity of diamidophosphine complexes of yttrium and the lanthanides." Canadian Journal of Chemistry 79, no. 7 (2001): 1194–200. http://dx.doi.org/10.1139/v01-087.

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The reaction of the dilithiodiamidophosphine ligand precursor PhP(CH2SiMe2NPh)2Li2(THF)2([NPN]Li2(THF)2) with LnCl3(THF)3 (Ln = Y, Sm, Ho, Yb, Lu; THF = tetrahydrofuran) in refluxing toluene generates the mononuclear complexes [NPN]LnCl(THF) in good yield. The molecular structures have been shown to be five-coordinate in the solid state and in solution. Attempts to prepare alkyl derivatives have only met with partial success; the reaction of MeMgCl with [NPN]YCl(THF) generates the partially characterized mixed-metal derivative [NPN]YMe2MgCl. The reaction with LiAlH4 results in complete ligand

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24

Krishna, Srivastava, Prakash Ved, Kumar Singh Sandeep, and Prasad Jagdish. "Cyclic voltammetric and electronic absorption spectral investigations on binary and mixed-ligand copper(II) complexes with diethyldithiocarbamate and diimines." Journal of Indian Chemical Society Vol. 89, Aug 2012 (2012): 1155–65. https://doi.org/10.5281/zenodo.5769100.

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Department of Chemistry, University of Allahabad, Allahabad-211 002, Uttar Pradesh, India <em>E-mail</em> : dr_krishna_s@yahoo.co.in <em>Manuscript received 05 March 2012, accepted 12 March 2012</em> The electrochemical properties of binary and mixed-ligand Cu<sup>ll</sup> complexes involving diethyldithiocarbamate (Et<sub>2</sub>-dtc<sup>-</sup>) as primary ligand and 2,2'-bipyridine/1,10-phenanthroline (bipy/phen) as coligands formed in different Cu<sup>II</sup> : Et<sub>2</sub>-dtc : bipy/phen molar ratios in acetone solution have been studied by using cyclic voltammetry. Cyclic voltamm

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Ma, Zhenbo, and Brian Moulton. "Mixed-Ligand Coordination Species: A Promising Approach for “Second-Generation” Drug Development." Crystal Growth & Design 7, no. 2 (2007): 196–98. http://dx.doi.org/10.1021/cg060602f.

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Chetty, K. V., P. M. Mapara, Rajendra Swarup, and S. K. Patil. "Some studies on synergic extraction of mixed ligand species of uranium(VI)." Journal of Radioanalytical and Nuclear Chemistry Articles 121, no. 1 (1988): 149–59. http://dx.doi.org/10.1007/bf02041456.

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R.N., Prasad, and Mohan Sharma Kirti. "Synthesis and fast atom bombardment mass spectrometry of mixed ligand complexes Cr(acac)L2." Journal of Indian Chemical Society Vol. 84, Jul 2007 (2007): 632–36. https://doi.org/10.5281/zenodo.5823768.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India <em>E-mail</em> : prasadraghunandan@yahoo.com <em>Manuscript received 19 April 2007, accepted 10 May 2007</em> Mixed ligand complexes of the type [Cr(acac)L<sub>2</sub>] (where acacH = acetylacetone and HL = salicylaldehyde, 5-bromo-(5-chloro- or 5-nitro-)salicylaldehyde, 2-hydroxyacetophenone, 2-hydroxypropiophenone, benzoylacetone or dibenzoylmethane) have been synthesized by the reactions of Cr(acac)3 with the corresponding carbonyl compounds in 1 : 2 molar ratios. These complexes have been characterized by I

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Lever, A. B. P. "A career in phthalocyanine chemistry – the Linstead Award 2002." Journal of Porphyrins and Phthalocyanines 08, no. 12 (2004): 1327–42. http://dx.doi.org/10.1142/s1088424604000696.

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A stroll through memory lane highlighting the author's contributions to phthalocyanines, including synthetic aspects especially of binuclear species, manganese oxygen breathing chemistry, mixed valence species, solution and surface electrochemistry, electrocatalysis, two-electron concerted processes, charge transfer spectroscopy, ligand electrochemical parameter applications and phthalocyanine design.

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Povar, Igor, Stefano Ubaldini, Oxana Spinu, and Tudor Lupascu. "Thermodynamic analysis of the copper (I) homogeneous and heterogeneous speciation in ammonium thiosulfate leaching systems." Canadian Journal of Chemistry 97, no. 9 (2019): 651–58. http://dx.doi.org/10.1139/cjc-2018-0446.

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The paper presents a new thermodynamic approach to studying mixed ligand complex formation reactions in the multi-component two-phase system “cuprous oxide-ammoniacal copper (I) thiosulfate aqueous solution” under real conditions. The quintessence of the developed approach consists in the thermodynamic analysis of concurrent reactions in the heterogeneous system Cu(I) – NH3 – S2O32− – H2O on the basis of the introduced notion of generalized reaction equations. A detailed thermodynamic analysis in ammonium thiosulfate leaching systems has considered the formation of mixed ligand complex species

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Chan, Antony P. Y., Georgina M. Rosair, and Alan J. Welch. "Exopolyhedral Ligand Orientation Controls Diastereoisomer in Mixed-Metal Bis(Carboranes)." Molecules 25, no. 3 (2020): 519. http://dx.doi.org/10.3390/molecules25030519.

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Heterobimetallic derivatives of a bis(carborane), [μ7,8-(1′,3′−3′-Cl-3′-PPh3-closo-3′,1′,2′-RhC2B9H10)-2-(p-cymene)-closo-2,1,8-RuC2B9H10] (1) and [μ7,8-(1′,3′−3′-Cl-3′-PPh3-closo-3′,1′,2′-RhC2B9H10)-2-Cp-closo-2,1,8-CoC2B9H10] (2) have been synthesised and characterised, including crystallographic studies. A minor co-product during the synthesis of compound 2 is the new species [8-{8′-2′-H-2′,2′-(PPh3)2-closo-2′,1′,8′-RhC2B9H10}-2-Cp-closo-2,1,8-CoC2B9H10] (3), isolated as a mixture of diastereoisomers. Although, in principle, compounds 1 and 2 could also exist as two diastereoisomers, only o

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Bindu, Hima, and Nageswara Rao. "Mixed ligand complexes of essential metal ions with L-glutamine and succinic acid in SLS-water mixtures." Journal of the Serbian Chemical Society 77, no. 4 (2012): 453–63. http://dx.doi.org/10.2298/jsc110201177b.

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Speciation of mixed ligand complexes of Co(II), Ni(II) and Cu(II) with L-glutamine and succinic acid was studied in varying amounts (0.0-2.5% w/v) of sodium lauryl sulphate in aqueous solutions maintaining an ionic strength of 0.16 mol L-1 (NaCl) at 303.0 K. Titrations were carried out in the presence of different relative concentrations (M : L : X = 1 : 2 : 2, 1 : 4 : 2, 1 : 2 : 4) of metal (M) to L-glutamine (L) to succinic acid (X) with sodium hydroxide. Stability constants of ternary complexes were refined with MINIQUAD75. The best-fit chemical models were selected based on statistical par

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32

S., P. TRIPATHI, KUMAR R., K. CHATURVEDI G., and C. SHARMA R. "Complexes of Rare Earths and Their Biocidal Properties." Journal of Indian Chemical Society Vol. 61, Oct 1984 (1989): 847–49. https://doi.org/10.5281/zenodo.6340471.

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Chemical Laboratories, Agra College, Agra-282 002 <em>Manuscript received 30 November 1983, accepted 10 August 1984</em> Mixed-ligand complexes of the type MAB (where M = La<sup>III</sup> , Pr<sup>lll</sup>, Nd<sup>lll</sup>, Gd<sup>III</sup> and Dy<sup>lll</sup> ; A=TAR (tartaric acid)/ MAL (malic acid) ; B = HQ (8-hydroxyquinoline) have been Investigated potentiometrically. During the formation of above species ligand B coordinates to the initially formed 1: 1, MA complexes in the second step. Ir spectra and elemental analyses of the isolated complexes have also been carried out in supp

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33

Tannistha, Roy Barman, and N. Mukherjee G. "Mixed-ligand complex formation equilibria of CoII, NiII, CuII and ZnII with glycine and 4,6-dimethyl-2-guanidinopyrimidine." Journal of India Chemical Society Vol. 87, Nov 2010 (2010): 1291–97. https://doi.org/10.5281/zenodo.5805624.

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Department of Chemistry, University College of Science, University of Calcutta, 92, Acharya Prafulla Chandra Road, Kolkata-700 009, India <em>E-mail:</em> mukherg@rediffmail.com          Fax: 91-033-23519755/22413222 <em>Manuscript received 24 February 2010, revised 19 May 2010, accepted 31 May 2010</em> Equilibrium study on the mixed-ligand complex formation of the <em>3d</em>(M<sup>II</sup>) Ions (M = Co, Ni, Cu and Zn) with glycine (H<sub>3</sub>N<sup>+</sup>CH<sub>2</sub>COO<sup>-</sup>, GlyH<sup>±</sup>) and 4,6-dimethyl-2-guanidlnopyrlmldine [H<sub>2<

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34

Costa, Maria Teresa A. R. S. da, Maria Fátima C. Guedes da Silva, João J. R. Fraústo Da Silva, and Armando J. L. Pombeiro. "Reactions of Bis(phenyldiazenido)rhenium Complex [ReBr2(NNPh)2(PPh3)2]Br with Carbon Monoxide and Alk-1-ynes." Collection of Czechoslovak Chemical Communications 72, no. 5-6 (2007): 599–608. http://dx.doi.org/10.1135/cccc20070599.

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The conversion of the bis(diazenido) complex [ReBr2(NNPh)2(PPh3)2]Br (1) to the mono(diazenido) complex [ReBr3(NNPh)(PPh3)2] (2) is promoted by alk-1-ynes, whereas the reaction with CO leads to the mixed dicarbonylmono(diazenido) Re(III) species [ReBr(CO)2- (NNPh)(PPh3)2]Br (3). Both reactions are suggested to occur via related pathways involving a nucleophilic displacement of one of the diazenide ligands by Br-. Reduction of the phenyldiazenide ligand in 2 occurs in the attempted reaction with HC≡CPh to give the nitrido complex [ReBr2(N)(PPh3)2] (4) and the bis(diazenido) species [ReBr2(NNPh)

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35

AJAY, TANEJA, SINGH YADAV YADVENDRA, C. JAIN GIRISH, S. SETH D., and KUMAR ASHOK. "Study of Mixed Ligand Complexes of Copper(II) with some Reactive Methylene Compounds and Carboxylic Acids by Polarography." Journal of Indian Chemical Society Vol. 69, Nov 1992 (1992): 726–28. https://doi.org/10.5281/zenodo.6042191.

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Department of Chemistry, St. John's College. Agra-282 002 Food Adulteration Laboratory, New Delhi <em>Manuscript received 2 April 1992, accepted 14 August 1992</em> Schaap and McMasters method has been used to determine the overall formation constants of mixed ligand complexes formed by Cu<sup>ll</sup> with tartrate-<em>N</em>-(2-ethoxy)phenyl malonamate and with tartrate-N-(2-chloro)phenyi malonamate systems. DeFord and Hume's treatment shows that Cu<sup>ll</sup> forms two complex species each with tartrate, <em>N</em>-(2 ethoxy) phenyl malonamate and <em>N-</em>(2 chloro)phenyl

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36

A., A. Abdel Gaber, A. Ghandour M., and S. El-Said H. "Polarographic studies on simple and mixed ligand systems involving cephalosporins." Journal of Indian Chemical Society Vol. 78, Sep 2001 (2001): 455–59. https://doi.org/10.5281/zenodo.5912662.

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Chemistry Department, Faculty of Science, Minia University, Minia, Egypt Chemistry Department, Faculty of Science, Assiut University, 715 16-Assiut, Egypt <em>Manuscript received 23 October 2000, accepted 20 April 2001</em> Differential pulse polarography and cyclic voltammetry have been chosen to follow up the metal-drug interactions at low concentrations in unbuffered solutions. Cephapirin, cefoperazone and cefuroxime form stable coordination compounds with Zn<sup>II</sup> and Pb<sup>II</sup>. The stoichiometric ratios of cephapirin versus Zn<sup>II</sup> or Pb<sup>II</sup> ions in thes

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37

Cioncoloni, Giacomo, Hans M. Senn, Stephen Sproules, Claire Wilson, and Mark D. Symes. "The electronic and solvatochromic properties of [Co(L)(bipyridine)2]+ (L = o-catecholato, o-benzenedithiolato) species: a combined experimental and computational study." Dalton Transactions 45, no. 39 (2016): 15575–85. http://dx.doi.org/10.1039/c6dt02807a.

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38

A., S. Rajbhoj, T. Gaikwad S., and K. Chondhekar T. "A quantitative equilibrium studies on mixed ligand complexes of cadmium with nitrogen, oxygen and sulphur containing drugs and amino acids." Journal of Indian Chemical Society Vol. 84, Oct 2007 (2007): 987–90. https://doi.org/10.5281/zenodo.5826848.

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Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad-431 004, Maharashtra, India <em>E-mail</em>: anjali.rajbhoj@yahoo.com Department of Chemistry, Balbhim College, Beed, Maharashtra, India <em>Manuscript received 20 July 2007, accepted 30 July 2007</em> A quantitative equilibrium studies on metal-ligand equilibria involving cadmium ion with drugs, (2<em>S</em>)-1-(3-mercapto-2-methyl propionyi)-L-prolinc i.e. captopril and 4-[2-hydroxy-3-(l-methyl ethyl amino)propoxy] benzene acetamide i.e. atcnulol with glycine and serine in 50% (v/v) alcohol-water mixture at 30

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39

Potvin, Pierre G., and Benjamin G. Fieldhouse. "An NMR study of mixed, tartrate-containing TiIV complexes." Canadian Journal of Chemistry 73, no. 3 (1995): 401–13. http://dx.doi.org/10.1139/v95-053.

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The reactions of amines and amino alcohols with diisopropyl or diethyl R,R- or S,S-tartrate and Ti(OiPr)4 were examined by 1H and 13C NMR to obtain and characterize nonfluxional complexes with the tartrate units in novel binding modes. The mildly acidic 8-hydroxyquinoline and N-phenyl-N-benzoylhydroxylamine selectively formed the products of a double OiPr substitution, Ti2(tartrate)2(ligand)2(OiPr)2, and the products of double tartrate substitution, Ti(ligand)2(OiPr)2, while 2,4-pentanedione formed only the latter Basic amino alkanols formed diastereomerically pure Ti2(tartrate)2(aminoalkoxide

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40

RAJANI, KUMARI, P. S. CHANDEL C., and M. GUPTA C. "Polarographic Studies of Mixed Complexes of Cadmium(II) with Amino Acids and Pyridoxine (Vitamin B6)." Journal of Indian Chemical Society Vol. 62, Oct 1985 (1985): 740–43. https://doi.org/10.5281/zenodo.6322783.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004 <em>Manuscript received 6 May 1985, accepted 11 September 1985</em> Ternary complexes of cadmium(II) with amino acids (alanine, glycine, glutamic acid, serine and threonine) and pyridoxine have been studied polarographically at 30° and at a constant ionic strength <em>µ - </em>1.0 (KNO<sub>2</sub>) and pH 8-9. The reduction of the complexes in each case is reversible and diffusion-controlled Cd<em><sup>II</sup></em> forms three mixed complex species, (Cd(amino acids) (pyridoxine)], (Cd(amino acids)(pyridn

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41

M., Sivasankaran Nair, and Subbalakshmi G. "pH-metric and electronic spectral measurements on the mixed ligand complexes of copper(II) containing unsubstituted imidazole and some dipeptides." Journal of Indian Chemical Society Vol. 77, Sep 2000 (2000): 442–44. https://doi.org/10.5281/zenodo.5870345.

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Department of Chemistry, Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli-627 012, India <em>Manuscript received 2 May 2000, accepted 10 June 2000</em> CuAB, CuABH<sub>-1</sub>, CuA<sub>2</sub>B or CuA<sub>2</sub>BH<sub>-1</sub> mixed ligand complexes have been identified in the Cu<sup>ll</sup>-imidazole (A)-glycyl-L-phenylalanine, L-phenyialanylglycine, glycyl-L-tyrosine, L-tyrosylglycine, L-phenylalanyl-L-tyrosine and L-tyrosyl-L-phenylalanine (B) systems. The stability constant values indicate the monodentate binding of imidazole (A) and bidentate binding of the dipeptide

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42

Al-Mohaimeed, Amal M. "Formation Constants of Mixed Ligand Complexes of Anti-Inflammatory Drug Piroxicam and Some Bioligands with Copper(II)." Asian Journal of Chemistry 31, no. 12 (2019): 2937–40. http://dx.doi.org/10.14233/ajchem.2019.22298.

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The formation constants of various complexes of copper(II) with anti-inflammatory drug piroxicam (P) as primary ligand and some bioligands such as L-serine, L-tyrosine, L-threonine as secondary ligand have been determined pH metrically at 25 ºC and I = 0.1 M NaNO3. The results suggest that the formation of Cu(P)L and Cu(P)(LH-1) species in the pH range of 5-12. The values of Δ log10 K, percentage of relative stabilization and log X were evaluated and discussed.

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43

S.E., Anumata, Ezenweke L.O., and Orjiako E.N. "Synthesis, Characterization and Antimicrobial Analysis of Nickel and Cobalt Complexes of Condensates of Salicylaldehyde and 2-Hydroxy Aniline." Asian Journal of Chemical Sciences 14, no. 4 (2024): 67–93. http://dx.doi.org/10.9734/ajocs/2024/v14i4318.

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This study on the synthesis, characterization and antimicrobial analysis of Nickel and Cobalt complexes of condensates of salicylaldehyde and 2-hydroxy aniline constitutes an attempt towards the development of new molecular compounds that could destroy the barrier of resistance of pharmaceutical products. The ligands of 2-phenyliminomethylphenol (PMP) and 2,2-hydroxy benzylidene aminophenol (HAP) were first prepared by separately reacting Aniline with Salicylaldehyde on the one hand, and 2-aminophenol with Salicylaldehyde on the other hand. The unmixed metal complexes were prepared by reacting

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44

MAHMOUD, A. GHANDOUR, A. EL-SAMAHY AHMAD, and KOMY ZANATI. "Polarographic Determination of Stability Constants of Cadmium and Lead Ternary Complexes with Thiosemicarbazide and Thiosulphate." Journal of Indian Chemical Society Vol. 62, Mar 1985 (1985): 198–201. https://doi.org/10.5281/zenodo.6321904.

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Department of Chemistry, Faculty of Science, Assiut University, Assiut, Egypt, <em>Manuscript received 11 July 1984, accepted 15 February 1985</em> The stability constants of binary and ternary complexes of Cd<sup>II</sup> and Pb<sup>II</sup> ions with thiosemicarbazide (TSC) as a primary ligand and thiosulphate (TS) as a secondary ligand have been determined polarographically at 25° and <em>µ</em>—0.13 (<em>M</em> NaN0<sub>2</sub>). Cadmium and lead ions individually form 1 : 1, 1 : 2 and 1 : 3 complexes with both the ligands. the complexation constants of the mixed

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45

Divya, Bartaria, Singh Monika, and Krishna V. "Mixed ligand complex equilibria and coordination tendencies of CoII, NiII, Cull and ZnII with L-glutamine/L-citrulline and uracil." Journal of Indian Chemical Society Vol. 90, Sep 2013 (2013): 1341–46. https://doi.org/10.5281/zenodo.5788783.

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Department of Chemistry, University of Allahabad, Allahabad-211 002, Uttar Pradesh, India United Institute of Technology, Naini, Allahabad-211 002, Uttar Pradesh, India <em>E-mail :</em> divya@united.ac.in <em>Manuscript received online 27 October 2012, revised 16 November 2012, accepted 30 November 2012</em> The speciation, plausible equilibrium and solution structural study of mixed-ligand complexes of L-glutamine/ L-citrulline and uracil has been investigated by potentiometry involving Cu<sup>II,</sup> Zn<sup>II</sup> , Ni<sup>ll</sup> and Co<sup>II</sup> metal ions. The overall s

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46

Krishna, Srivastava, Singh Nutan, Kumar Srivastava Ashish, and Prasad Jagdish. "Cyclic voltammetric and spectral studies of some mixed-ligand copper(II) complexes involving 2,2'-bipyridine/1,10-phenanthroline and amino acids." Journal of Indian Chemical Society Vol. 86, Feb 2009 (2009): 139–42. https://doi.org/10.5281/zenodo.5807406.

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Department of Chemistry, University of Allahabad, Allahabad-211 002, Uttar Pradesh, India <em>E-mail </em>: dr_krishna_s@yahoo.co.in; drjagdish_p@yahoo.co.in <em>Manuscript received 10 September 2007, revised 24 October 2008, accepted 27 October 2008</em> Cyclic voltammetric and electronic spectral studies of some mixed ligand copper(n) complexes, viz. [Cu(bipy)(glu)), 1; [Cu(bipy)(tyro))CI, 2; [Cu(phen)(asp)), 3; [Cu(phcn)(glu)].2H<sub>2</sub>O, 4 and [Cu(phen)(tyro))CI H<sub>2</sub>O, 5 (where, bipy = 2,2'-bipyridine, phen = 1,10-phenanthroline, asp = L-aspartate dianion, glu = L-glutama

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47

Denler, Melissa C., Allyssa A. Massie, Reena Singh, et al. "MnIV-Oxo complex of a bis(benzimidazolyl)-containing N5 ligand reveals different reactivity trends for MnIV-oxo than FeIV-oxo species." Dalton Transactions 48, no. 15 (2019): 5007–21. http://dx.doi.org/10.1039/c9dt00308h.

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Investigations of a Mn<sup>IV</sup>-oxo adduct supported by an N5 ligand with mixed pyridyl and benzimidazolyl ligation uncovers distinct reactivity trends for Mn<sup>IV</sup>-oxo and Fe<sup>IV</sup>-oxo adducts at parity of coordination sphere.

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48

Sarkar, Asit R., and Shipra Mandal. "Insulin Mimetic Peroxo Complexes of Vanadium Containing Uracil or Cytosine as Ligand." Metal-Based Drugs 7, no. 3 (2000): 157–64. http://dx.doi.org/10.1155/mbd.2000.157.

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Mixed ligand oxo peroxo complexes of vanadium (V), M[VO(O2)L2].nH2O where M = K or NH4, HL = uracil or cytosine and n = 1 or 2, have been isolated from aqueous methanolic medium. The complexes were characterised by elemental analysis, conductance, TGA, UV-Visible, IR and NMR spectral studies. Both the peroxide and the other ligands acts as chelates coordinating through their oxygen at C (2) and nitrogen at N (3) and the presence of monomeric oxoperoxovanadium (V) species, have been established by IR, H1 and V51 NMR studies. The complexes appeared to possess pentagonal bipyramidal geometry. The

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49

Lloyd-Jones, G. C., S. C. Stephen, I. J. S. Fairlamb, et al. "Coordination of the Trost modular ligand to palladium allyl fragments: Oligomers, monomers and memory effects in catalysis." Pure and Applied Chemistry 76, no. 3 (2004): 589–601. http://dx.doi.org/10.1351/pac200476030589.

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Reaction of the C2-symmetric "Trost modular ligand" with cationic Pd(II) allyl fragments allows isolation of air- and bench-stable pro-catalysts for the asymmetric allylic alkylation of racemic cycloalkenyl esters. In solution, three distinct complexation modes are observed. When mixed in a ligand/Pd ratio of 1/2, a binuclear bis-P,O-chelate complex is generated. This species does not induce enantioselectivity in the reaction. In contrast, with a ligand/Pd ratio of 1/1, a highly enantioselective, P,P-coordinated pro-catalyst system is generated in which there are two basic coordination modes:

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50

Marwah, M. Al-Dulaimi, and H. Al-Obaidi Omar. "Synthesis, Characterization and Biological activity of mixed ligand Dimedon and Isatin with metal complex." Journal of Wildlife and Biodiversity 7, Special Issue (2023): 138–56. https://doi.org/10.5281/zenodo.10211625.

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New compounds of mixed ligand complex (Scheme 1) were synthesized by the reaction of metal ions  Zn (II), Cd (II), Co (II), Mn (II), Ni (II) Cu (II)  and Fe (II) with the Dimedon (L1) as a primary ligand and Isatin (L2) as a secondary ligand in a molar ratio of 1:1:1 and identified using several spectral analysis methods, where used UV-visible, CHNOS elemental analysis, FT-IR, molar conductivity, mass spectrum, magnetic susceptibility and additionally, Chloride content as a quantitative evaluation, according to the results obtained by analysis methods, we observed that all the synthe

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