Academic literature on the topic 'Methanolic ligand solution'

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Journal articles on the topic "Methanolic ligand solution"

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FARAH MUAIAD IBRAHIM. "Synthesis and Characterization of Fe (II), Co (II), Ni (II), Cu (II), Cd (II) Mono-Complexes with Mannich Base 4- hydroxy- 3-(4'-morpholinyl methyl) quinoline." Journal of the College of Basic Education 18, no. 74 (2023): 83–94. http://dx.doi.org/10.35950/cbej.v18i74.9687.

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Mannich bases have rececived great attention in recent years because of their proven antimalarial, antifungal and anticancer activities, coordination certain metal ions to them have interested use in synthesizing and studying structural aspects of metal complexes with oxygen and nitrogen donor ligands.
 The chelate ligand 4-hydroxy-3-(4'-morpholinyl methyl) quinoline was prepared by condensation of the formaldehyde with morpholine and 4- hydroxyquinoline in ethanol.
 A methanolic solution of the prepared ligand was reacted with a methanolic solution containing metal ions Fe (II), Co
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Adiba, Naila Azmi, Danar Purwonugroho, Arie Srihardyastutie, and Yuniar Ponco Prananto. "Crystallization of [Zn(Pyrazinamide)₂(Cl)₂] Complex and In Vitro Antibacterial Activity of the Complex Against E. coli and S. aureus." Jurnal Kimia Sains dan Aplikasi 27, no. 9 (2024): 436–43. http://dx.doi.org/10.14710/jksa.27.9.436-443.

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A complex of [Zn(pza)2(Cl)2], pza = pyrazinamide, was successfully crystallized from methanol or ethanol solvents with different morphology. The complex was synthesized using the solution method in ZnCl2: pza mol ratios of 1:2 and 1:4 in both ethanol and methanol solvents. FTIR and single crystal XRD analyses were done to confirm the complex. The complex was then used for in vitro antibacterial test against E. coli and S. aureus. Experimental data shows that the type of solvent and metal-to-ligand mol ratio yields the same compound, resulting in colorless crystals that melt at 234-236°C. Large
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Saleem, Mohd, and Mohd Riaz. "Synthesis of some Novel Mixed Ligand Complexes of Ni(II) and their Characterization." Oriental Journal Of Chemistry 37, no. 5 (2021): 1152–57. http://dx.doi.org/10.13005/ojc/370520.

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A new series of metal Complexes were prepared by refluxing nickel chloride with hot methanolic solution mixture of 8-Hydroxyquinoline and Schiff bases(L1-L6). Schiff base ligands were synthesised by the condensation of 4-aminopheno, 4-aminosalicylic acid, 2-aminobenzthiazole with salicylaldehyde and vanillin. The metal complexes have been characterised by gravimetric metal analysis, magnetic moment,conductivity measurement, 1HNMR and IR analysis.
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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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Herberhold, Max, Guo-Xin Jin, Walter Kremnitz, Arnold L. Rheingold та Brian S. Haggerty. "Halfsandwich cyclo-Pentasulfido and cyclo-Pentaselenido Complexes, (η5-C5Me5)M(NO)(E5) (E = S, Se; M = Cr, Mo, W)". Zeitschrift für Naturforschung B 46, № 4 (1991): 500–506. http://dx.doi.org/10.1515/znb-1991-0413.

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The reactions of the pentamethylcyclopentadienyl halfsandwich nitrosyl complexes Cp*Cr(NO)2I and Cp*M(NO)I2 (M = Mo, W) with either methanolic ammonium polysulfide solutions or hydrogen selenide solutions (generated by hydrolysis of Al2Se3) can be used to prepare cyc/o-pentachalcogenido compounds such as Cp*M(NO)(S5) (M = Cr (la), Mo (2a), W (3a)) and Cp*M(NO)(Se5) (M = Cr (lb), W (3b)). The chromium complex Cp*Cr(NO)(S5) (la) is also formed in high yield by photodecarbonylation of Cp*Cr(CO)2NO in acetonitrile solution in the presence of excess sulfur. An X-ray structure analysis of Cp*W(NO)(S
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Khrabit, Taleb M. "Synthesis and spectral studies of some metal complexes derived from 1,3,4-oxadiazole and Evaluated of biological activity." Al-Mustansiriyah Journal of Science 29, no. 4 (2019): 73. http://dx.doi.org/10.23851/mjs.v29i4.415.

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In this study we reports the preparation and characterization of ligand [L1] [2,5-bis(4-butoxy phenyl) -1,3,4- oxadiazole in four steps. First from (4-hydroxy benzoic acid) treated with solution of potassium hydroxide and normal bromo alkane (RBr) R=[(CH3(CH2)3] to prepared precursor [ H1] 4-( butyloxy) benzoic acid. The second step have been prepared the precursor [H2]4-( butyloxy) benzoate from compound [H1] in methanolic acidic solution with drops of H2SO4 . The third step prepared the precursor [H3] 4-(n-butoxy) benzo hydrazide by the reaction [H2] and hydrazine hydrate(90%). The last step
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Kis, Máté Levente, Bálint Hajdu, Petar Dorkov, Ivayla Pantcheva, and Béla Gyurcsik. "Circular Dichroism Spectroscopic Studies on Solution Chemistry of M(II)-Monensinates in Their Competition Reactions." Inorganics 11, no. 8 (2023): 334. http://dx.doi.org/10.3390/inorganics11080334.

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The chirality of the polyether ionophore monensic acid A can be successfully used to study its coordination ability in solution. A complementary approach to gain new insights into the complexation chemistry of the antibiotic (studied previously by circular dichroism (CD) spectroscopy in the ultraviolet range (UV-CD)) is presented. (1) Methods: The CD spectroscopy in the visible (VIS-CD) and near-infrared (NIR-CD) range is applied to evaluate the affinity of deprotonated monensic acid A (monensinate A) towards Ni(II) or Co(II) cations in methanolic solution. Competition experiments between a va
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Diop, Aboubacar, Tidiane Diop, Daouda Ndoye, Dame Seye, Paul Tinnemans, and Cheikh Diop. "Synthesis, Spectroscopic Studies, Thermal Stability and Crystal Structure of New Bidentate Schiff Base and Its Cadmium Complex." Science Journal of Chemistry 12, no. 6 (2024): 135–43. https://doi.org/10.11648/j.sjc.20241206.13.

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A new asymmetric bidentate Schiff base ligand was synthesized from a condensation reaction between 2,4-dichlorobenzaldehyde (C7H4Cl2O) and 1,3-pentanediamine (C5H14N2). A cadmium complex was prepared by adding Cd(II) iodide dissolved in methanol to a methanolic solution of the Schiff base ligand, in a ratio of 1:1. The ligand was characterized by elemental, spectroscopic (IR, <sup>1</sup>H NMR), and thermogravimetric analyses. The ligand structure, thermally very stable, is revealed to be bidentate with two potential N-donor sites. The crystal structure of the Schif
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Sarker, Pranta, Avijit Chakraborty, Saswata Rabi, et al. "Noncyclic Diaza Ligands and Their Metal Complexes: Synthesis, Characterization, and Biological Studies." Asian Journal of Chemistry 35, no. 12 (2023): 3027–36. http://dx.doi.org/10.14233/ajchem.2023.30567.

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Condensation reactions involving various ketones and amines formed noncyclic ligands denoted as LI, LII, LIII, and LIV. Ethylenediamine, when reacted with acetophenone, benzoylacetone (in the presence of 70% HClO4), and benzophenone, resulted in the following noncyclic ligands: (E,E)-N,N-bis(1-phenylethylidene)ethylenediamine (LI), bis(1-3-hydroxy-3-phenylbut-2-ene-ylidene) (LII) and (E,E)-N,N-bis(1,1-diphenylmethylidene)ethylenediamine (LIII), respectively. The reaction of benzophenone with 1,3-diaminopropane in a 1:1 ratio in a methanolic solution also led to the synthesis of a noncyclic lig
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Barta Holló, Berta, Mirjana M. Radanović, Marko V. Rodić, Sanja Krstić, Željko K. Jaćimović, and Ljiljana S. Vojinović Ješić. "Synthesis, Physicochemical, Thermal and Antioxidative Properties of Zn(II) Coordination Compounds with Pyrazole-Type Ligand." Inorganics 10, no. 2 (2022): 20. http://dx.doi.org/10.3390/inorganics10020020.

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The reactions of pyrazole derivative, i.e., ethyl-5-amino-1-methyl-1H-pyrazole-4-carboxylate (L) with zinc halogenides in methanolic solution and zinc nitrate and zinc acetate in acetonic solution are described. The formulae of synthesized compounds are ZnL2Cl2 (1), [ZnL2Br2] (2), ZnL2I2·0.5MeOH (3), [Zn(L)2(H2O)4](NO3)2 (4), and {ZnL(OAc)2}2 (5). Two complexes are obtained in form of single crystals: [ZnL2Br2] (2) and [Zn(L)2(H2O)4](NO3)2 (4). Their crystal and molecular structure were determined by single-crystal X-ray structure analysis. The FTIR spectra of compounds prove the complex forma
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Dissertations / Theses on the topic "Methanolic ligand solution"

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Morel-Desrosiers, Nicole. "Contribution a la thermodynamique des solutions de cryptates alcalins et alcalino-terreux dans l'eau et le methanol." Clermont-Ferrand 2, 1987. http://www.theses.fr/1987CLF2E374.

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Etude de la solvatation des especes resultant de l'inclusion d'un cation metallique dans la cavite d'un coordinat macrobicyclique, par la mesure des parametres thermodynamiques. Specificite des differents complexes du 222
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Conference papers on the topic "Methanolic ligand solution"

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Isak, Stefan J., K. B. Reddy, Rüdiger Hoffman, Gabor Konya, Rudi van Eldik, and Edward M. Eyring. "Photoacoustic, Photothermal Beam Deflection and Flash Photolytic- High Pressure Rate Studies Done with a Pulsed Nd:YAG Laser." In Laser Applications to Chemical Analysis. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/laca.1992.pd3.

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A combination of photoacoustic (PA), photothermal beam deflection (PBD) and fluorimetric spectroscopic measurements has been used to determine fluorescence quantum yields for cresyl violet perchlorate in methanolic and aqueous solutions. A concentration dependence of the fluorescence quantum yield is found to be significant. The same Quanta Ray DCR-2 Nd:YAG laser used in the PA and PBD experiments has been the flash photolysis light source at λ = 355 nm for a rate study of ring closure reactions of Mo(CO)5L complexes where L is one of several substituted 2,2'-bipyridine chelating ligands. The
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Moser, Bryan, Kenneth Doll, and Michael Jackson. "Serendipitous production of industrially useful p-cymene by catalytic dehydration and isomerization of perillyl alcohol." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/ehhi6828.

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As part of our continuing efforts to produce aliphatic polyesters from fats and oils, we were originally attempting to esterify 9-decenoic acid with perillyl alcohol [(4-isopropenyl-1-cyclohexen-1-yl)methanol] in the presence of catalytic para-toluenesulfonic acid in refluxing toluene to give tris-unsaturated perillyl decenoate as a monomer for subsequent ADMET and thiol-ene polymerization. The esterification procedure had proven simple and effective for several previous esterifications involving different alcohol/acid combinations, but in this case the expected ester was not observed. Instead
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