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Journal articles on the topic 'Organocopper compounds. Complex compounds. Ligands'

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Published: 4 June 2021

Last updated: 1 February 2022

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1

Ion, Emilia, Mirela Calinescu, Ana Emandi, Victoria Badea, and Dumitru Negoiu. "Copper(II) Complex Compounds with Mixed Hydrazone Ligands." Revista de Chimie 59, no. 1 (2008): 12–16. http://dx.doi.org/10.37358/rc.08.1.1697.

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Three Cu(II) complex compounds with mixed hydrazone ligands have been prepared and characterized in view of their potential biological activity. The complex compounds have the formulas: [Cu(HLa)(Lc)Br], [CuLaLc] and [CuLbLc] . Na, where HLa = 4-dimethylamino benzaldehyde-2-benzothiazolyl hydrazone, H2Lb = 2-hydroxybenzaldehyde-2-benzothiazolyl hydrazone and HLc = 2-hydroxy-1-naphthyliden-N,N-dimethyl hydrazone. The complexes have been characterized by elemental and thermogravimetrical analysis, infrared, electronic and EPR spectra. EPR spectral studies of the complexes gave axial symmetry, wit

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2

JITARU, IOANA, MARIANA BICHER, OANA JINGA, and DAN JINGA. "COMPLEX COMPOUNDS WITH PHOSPHORUS AND NITROGEN CONTAINING LIGANDS." Phosphorus Research Bulletin 10 (1999): 708–13. http://dx.doi.org/10.3363/prb1992.10.0_708.

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3

Molteni, Roberto, Rüdiger Bertermann, Katharina Edkins, and Andreas Steffen. "An unexpected transmetalation intermediate: isolation and structural characterization of a solely CH3 bridged di-copper(i) complex." Chemical Communications 52, no. 28 (2016): 5019–22. http://dx.doi.org/10.1039/c6cc01510g.

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A dicopper(i) complex, [Cu(PPh<sub>3</sub>)<sub>2</sub>(μ-Me)CuMe] (2), in which two metal centres are solely bridged by a methyl group and experience stabilizing metallophilic interactions, has been isolated and structurally characterized, showing a new bonding mode of CH<sub>3</sub> and giving further inside into transmetalation reactions of organocopper compounds.

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4

LANG, H., and M. WEINMANN. "ChemInform Abstract: Bis(alkynyl) Titanocenes as Organometallic Chelating Ligands for the Stabilization of Monomeric Organocopper(I) Compounds." ChemInform 27, no. 19 (2010): no. http://dx.doi.org/10.1002/chin.199619287.

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5

Golichenko, Alexander, and Alexander Shtemenko. "HYDROLYSIS OF RHENIUM(III) CLUSTER COMPOUNDS." Ukrainian Chemistry Journal 85, no. 3 (2019): 27–34. http://dx.doi.org/10.33609/0041-6045.85.3.2019.27-34.

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Study of hydrolysis of cis-tetrachlorodi-m-carboxylates of dirhenium (III) was carried out due to the electronic adsorption and IR spectroscopy and pHmeter. As a result, itwas shown that the hydrolysis is a multistage process which can be attributed to the reactions of the pseudo-first order. It is also shown that the electronic absorption spectroscopy (EAS) is a reliable method of investigation to study the hydrolysis of rhenium (III) complex compounds. This conclusion is based on the fact that in the systems with halide and carboxylic ligands, each of the five structural types can be clearly

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6

Golichenko, Alexander, and Alexander Shtemenko. "HYDROLYSIS OF RHENIUM(III) CLUSTER COMPOUNDS." Ukrainian Chemistry Journal 85, no. 3 (2019): 27–34. http://dx.doi.org/10.33609/6045.85.3.2019.27-34.

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Study of hydrolysis of cis-tetrachlorodi-m-carboxylates of dirhenium (III) was carried out due to the electronic adsorption and IR spectroscopy and pHmeter. As a result, itwas shown that the hydrolysis is a multistage process which can be attributed to the reactions of the pseudo-first order. It is also shown that the electronic absorption spectroscopy (EAS) is a reliable method of investigation to study the hydrolysis of rhenium (III) complex compounds. This conclusion is based on the fact that in the systems with halide and carboxylic ligands, each of the five structural types can be clearly

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7

Scrase, Tom G., Simon M. Page, Paul D. Barker, and Sally R. Boss. "Folates are potential ligands for ruthenium compounds in vivo." Dalton Trans. 43, no. 22 (2014): 8158–61. http://dx.doi.org/10.1039/c4dt00081a.

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A labile ruthenium(ii) complex has been observed to chelate to folates under physiologically relevant conditions. The diastereomeric complexes formed would interfere with the one-carbon carrying role of folate in vivo. This highlights the importance of considering small molecules alongside macromolecules when determining the chemical origins of cytotoxicity of metallodrug candidates.

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8

Ranskiy, Anatoliy, and Natalia Didenko. "Direct Synthesis of Cuprum(II) Complex Compounds Based on Thioamide Ligands." Chemistry & Chemical Technology 8, no. 4 (2014): 371–78. http://dx.doi.org/10.23939/chcht08.04.371.

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9

Chomi¹, J., K. Györyová, E. Szunyogová, and J. Kováéová. "Thermal study of zinc(II) salicylate complex compounds with bioactive ligands." Journal of Thermal Analysis and Calorimetry 76, no. 1 (2004): 33–41. http://dx.doi.org/10.1023/b:jtan.0000027800.14514.c2.

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10

Domonov, Denis P., and S. I. Pechenyuk. "Thermal decomposition of double complex compounds of 3D metals." Herald of Kola Science Centre of the RAS 12, no. 3-2020 (2020): 5–15. http://dx.doi.org/10.37614/2307-5228.2020.12.3.001.

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The paper is devoted to the study of thermolysis of double complex compounds (DCС) of metalsin the I transition series. 30 DCСwith various combinations of metal-central atoms (Co-Fe, Cu-Fe, Ni-Fe Cr-Fe, Cr-Co,) and ligands (ammonia, urea (ur), ethylenediamine (en), 1,3-diaminopropane (tn), cyanide, oxalate and nitrite anions) were synthesized and characterized. A complete study of the thermal proper-ties of these DCCs in three atmospheres was carried out: oxidizing (air), inert (Ar, N2, partly He) and re-ducing (H2), in the temperature range of 20–1000°Cand at constant heating rate of 10°C/min

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11

Apblett, Allen W., Alison C. Warren, and Andrew R. Barron. "Tris-triphenylsiloxy compounds of aluminium." Canadian Journal of Chemistry 70, no. 3 (1992): 771–78. http://dx.doi.org/10.1139/v92-102.

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The reaction of AlMe3 with three equivalents of HOSiPh3 in THF results in the formation of the solvent complex Al(OSiPh3)3(THF) (1). Hydrolysis of 1 yields the stable water complex Al(OSiPh3)3(H2O)(THF)2 (2) in which the THF molecules are hydrogen bonded to the coordinated water ligand. Compounds 1 and 2 have been fully characterized by 1H, 13C, 17O, 27Al, and 29Si NMR and IR spectroscopy. In addition, variable temperature 1H NMR of 2 has been employed to investigate the steric interactions between the phenyl rings of adjacent siloxide ligands. The molecular structures of the solvates 1•(THF)

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12

Mori, Seiji, та Eiichi Nakamura. "Theoretical studies on π-complex formation of organocopper compounds with acetylene. The origin of nucleophilicity of organocuprates". Journal of Molecular Structure: THEOCHEM 461-462 (квітень 1999): 167–75. http://dx.doi.org/10.1016/s0166-1280(98)00458-8.

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13

БЕЛОБЕЛЕЦКАЯ, М. В., Н. И. СТЕБЛЕВСКАЯ, and М. А. МЕДКОВ. "Complex formation of REEs with polydentate organic ligands." Вестник ДВО РАН, no. 6(214) (December 24, 2020): 7–16. http://dx.doi.org/10.37102/08697698.2020.214.6.001.

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Исследовано комплексообразование европия и тербия с полифункциональными органическими соединениями – β-дикетонами, органическими кислотами. Состав комплексов изучен экстракционным методом, ИК и люминесцентной спектроскопией. Установлено, что при экстракции РЗЭ смешанными экстрагентами идет эффективное комплексообразование РЗЭ в органической фазе. Показана возможность синтеза из насыщенных экстрактов разнолигандных координационных соединений РЗЭ, выделены индивидуальные кристаллические комплексы. The complex formation of europium and terbium with polyfunctional organic compounds: β-diketones, o

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14

Pechenyuk, S. I., D. P. Domonov, A. A. Avedisyan, and S. V. Ikorskii. "Conversions of coordinated ligands by reducing thermolysis of some double complex compounds." Russian Journal of Inorganic Chemistry 55, no. 5 (2010): 734–38. http://dx.doi.org/10.1134/s0036023610050128.

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15

Győryová, Katarína, J. Chomič, Erika Szunyogová, Lenka Piknová, V. Zeleňák, and Zuzana Vargová. "Thermal study of zinc(II) 4-chlorosalicylate complex compounds with bioactive ligands." Journal of Thermal Analysis and Calorimetry 84, no. 3 (2006): 727–32. http://dx.doi.org/10.1007/s10973-005-7542-6.

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16

Nurdeni, Atje Setiawan Abdullah, Budi Nurani Ruchjana, et al. "Quantitative Structure-Property Relationship (QSPR) Study on the Complex Compounds Formed From Gadolinium(III) with Dibutyl Dithiophosphate Derivatives Ligands Based on Molecular Descriptors." Key Engineering Materials 874 (January 2021): 171–81. http://dx.doi.org/10.4028/www.scientific.net/kem.874.171.

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A study of the quantitative relationship of structure and property (Quantitative Structure Property Relationship (QSPR) has been carried out on complex compounds formed between gadolinium (Gd) and dibutyldithiophosphate (DBDTP) derivative ligands. This study is a part of our laboratory research program on the development of extractant ligands, including DBDTP in extraction for the separation and purification of rare-earth elements (REEs), specifically Gd. Gadolinium has also been a part of the research program about its use in the synthesis of magnetic resonance imaging (MRI) contrast agents,

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17

Lacko, Michal, Peter Papp, Iwona B. Szymańska, Edward Szłyk, and Štefan Matejčík. "Electron interaction with copper(II) carboxylate compounds." Beilstein Journal of Nanotechnology 9 (February 1, 2018): 384–98. http://dx.doi.org/10.3762/bjnano.9.38.

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In the present study we have performed electron collision experiments with copper carboxylate complexes: [Cu2(t-BuNH2)2(µ-O2CC2F5)4], [Cu2(s-BuNH2)2(µ-O2CC2F5)4], [Cu2(EtNH2)2(µ-O2CC2F5)4], and [Cu2(µ-O2CC2F5)4]. Mass spectrometry was used to identify the fragmentation pattern of the coordination compounds produced in crossed electron – molecular beam experiments and to measure the dependence of ion yields of positive and negative ions on the electron energy. The dissociation pattern of positive ions contains a sequential loss of both the carboxylate ligands and/or the amine ligands from the c

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18

Györyová, K., V. Balek, and J. Kovářová. "Thermal properties of zinc butyrate complex compounds. Part 1: Urea and thiourea ligands." Thermochimica Acta 269-270 (December 1995): 425–32. http://dx.doi.org/10.1016/0040-6031(95)02542-1.

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19

Mamedova, Shafa Agаеvna. "METAL COMPLEX CATALYSIS." Globus 7, no. 5(62) (2021): 31–33. http://dx.doi.org/10.52013/2658-5197-62-5-7.

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Complexes of transition metals with chiral ligands are considered as catalysts. Among metal-containing organic complexes with semiconducting properties, compounds of the porphin series occupy a special place in electrocatalytic studies. The properties of the porphyrin macrocycle, their role in catalysis, and the influence of the nature of the metal on the catalytic properties of the complex are considered.

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20

Müller, Susanne, and Ulf Thewalt. "Polynuclear Cadmium Compounds Containing cis-[Co(en)2(OH)2]+ Ligands." Collection of Czechoslovak Chemical Communications 62, no. 2 (1997): 257–64. http://dx.doi.org/10.1135/cccc19970257.

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Polynuclear heterometallic compounds containing cobalt and cadmium were prepared by the reaction of CdCl2 with salts of the cis-[Co(en)2(H2O)2]3+ cation. X-Ray analyses of the tetranuclear Co2Cd2 complex [Cd2(mi-Cl)Cl4{(OH)2Co(en)2}2]ClO4 (1) and the polymeric compound [[Cd(mi-Cl)-(H2O)2{(OH)2Co(en)2}]Cl2]n (2) confirm that the [Co(en)2(OH)2]+ groups act as chelating ligands toward the Cd atoms. The Cd coordination octahedra are connected by a face in 1 and by corners in 2.

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21

Abakumova, O. Y., O. V. Podobed, N. F. Belayeva, and A. I. Tochilkin. "Anticancer activity of oxovanadium compounds." Biomeditsinskaya Khimiya 59, no. 3 (2013): 305–20. http://dx.doi.org/10.18097/pbmc20135903305.

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Cytotoxic and antitumor activity of the biligand vanadyl derivative of L-malic acid (bis(L-malato)oxovanadium(IV) (VO(mal) ) was investigated in comparison with inorganic vanadium(IV) compound - vanadyl sulfate (VOSO ) and also with oxovanadium monocomplex with L-malic acid (VO(mal)) and vanadyl biscomplex with acetylacetonate. In this purpose the effect of vanadyl compounds on growth of normal human skin fibroblasts and tumor cells of different lines: mouse fibrosarcoma (L929), rat pheochromocytome (PC12), human liver carcinoma (HepG2), virus transformated mouse fibroblast (NIN 3T3), virus tr

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22

Fedorova, E. V., A. V. Buryakina, N. M. Vorobieva, and N. I. Baranova. "The vanadium compounds: chemistry, synthesys, insulinomimetic properties." Biomeditsinskaya Khimiya 60, no. 4 (2014): 416–29. http://dx.doi.org/10.18097/pbmc20146004416.

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The review considers the biological role of vanadium, its participation in various processes in humans and other mammals, and the anti-diabetic effect of its compounds. Vanadium salts have persistent hypoglycemic and antihyperlipidemic effects and reduce the probability of secondary complications in animals with experimental diabetes. The review contains a detailed description of all major synthesized vanadium complexes having antidiabetic activity. Currently, vanadium complexes with organic ligands are more effective and safer than the inorganic salts. Despite the proven efficacy of these com

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23

Calinescu, Mirela, Catalina Stoica, and Mihai Nita-Lazar. "Complex Compounds of Sm(III) with Chlorhexidine Synthesis, characterization, luminescent properties and antibacterial activity." Revista de Chimie 70, no. 1 (2019): 6–12. http://dx.doi.org/10.37358/rc.19.1.6840.

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Three new samarium(III) complex compounds with chlorhexidine as ligand and mixed ligands chlorhexidine/o-phenanthroline have been prepared and characterized by elemental and thermogravimetrical analyses, infrared, electronic and luminescence spectra. The complexes corresponded to the formulas: [Sm(CHX)(NO3)2]� NO3, [Sm(CHX)(o-phen)2]� (NO3)3 and [Sm2(CHX)(o-phen)2(NO3)4]�(NO3)2, where CHX was the chlorhexidine. Chlorhexidine acted as neutral tetradentate NNNN donor, coordinating through the four imine nitrogen atoms. The two mixed ligands complexes showed a strong luminescent emission in solid

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24

Gavrilov, Konstantin N., Oleg G. Bondarev, and Aleksei I. Polosukhin. "Chiral phosphites as ligands in asymmetric metal complex catalysis and synthesis of coordination compounds." Russian Chemical Reviews 73, no. 7 (2004): 671–700. http://dx.doi.org/10.1070/rc2004v073n07abeh000838.

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25

BREZEANU, M., C. I. LEPADATU, C. GURAN, and I. JITARU. "ChemInform Abstract: Complex Compounds with Amino Alcohols. Part 1. Complexes Containing Propanolamines as Ligands." ChemInform 25, no. 18 (2010): no. http://dx.doi.org/10.1002/chin.199418272.

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26

Kalecińska, E., and J. Kaleciński. "Importance of acetylacetone and 2,2'-bipyridyl ligands in radiation-chemical processes of complex compounds." International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry 39, no. 1 (1992): 133–36. http://dx.doi.org/10.1016/1359-0197(92)90186-j.

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27

Frolov, V. Yu, S. N. Bolotin, and V. T. Panyshkin. "Electrochemical Synthesis of Complex Compounds of Transition Elements with Carboxyl- and Carbonyl-containing Ligands." Russian Journal of Applied Chemistry 78, no. 6 (2005): 897–902. http://dx.doi.org/10.1007/s11167-005-0416-7.

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28

Estrada-Ortiz, Natalia, Elena Lopez-Gonzales, Ben Woods, et al. "Ex vivo toxicological evaluation of experimental anticancer gold(i) complexes with lansoprazole-type ligands." Toxicology Research 8, no. 6 (2019): 885–95. http://dx.doi.org/10.1039/c9tx00149b.

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Abstract Gold-based compounds are of great interest in the field of medicinal chemistry as novel therapeutic (anticancer) agents due to their peculiar reactivity and mechanisms of action with respect to organic drugs. Despite their promising pharmacological properties, the possible toxic effects of gold compounds need to be carefully evaluated in order to optimize their design and applicability. This study reports on the potential toxicity of three experimental gold-based anticancer compounds featuring lansoprazole ligands (1–3) studied in an ex vivo model, using rat precision cut kidney and l

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29

Vashchenko, Oleksandr, Dmytro Khomenko, Roman Doroschuk, and Rostyslav Lampeka. "New coordination compounds of uranyl ion with 3-(2-hydroxyphenyl)-1,2,4-triazole and its derivatives: synthesis and investigation of spectral properties." French-Ukrainian Journal of Chemistry 3, no. 2 (2015): 109–14. http://dx.doi.org/10.17721/fujcv3i2p109-114.

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New methods of 3-(2-hydroxyphenyl)-1,2,4-triazoles synthesis were developed. Obtained ligands was used for synthesis of three new complex compounds of uranyl-ion with general composition [UO2(HL)2(Solv)]. These compounds were characterized by NMR and IR spectroscopy.

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30

Nishida, Yuzo, Miyuki Nasu, and Tadashi Tokii. "Notizen: Variety of Oxidation States of Manganese Ions in Compounds with Tripod-Like Tetradentate Ligands." Zeitschrift für Naturforschung B 45, no. 7 (1990): 1093–96. http://dx.doi.org/10.1515/znb-1990-0732.

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From the reaction mixture of Mn(III) acetate and several tripod-like ligands, a Mn(II) complex, a binuclear Mn(III) complex with (μ-oxo)(μ-acetato) core, and a Mn(III)–Mn(IV) complex with a di-μ-oxo bridge were obtained. This demonstrates that the oxidation state of the manganese ion in these compounds is drastically affected by small changes in ligand character.

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31

Калиновская, И. В. "Разнолигандные комплексные соединения европия (III) с o-метоксибензойной кислотой и фосфорсодержащими нейтральными лигандами". Журнал технической физики 128, № 5 (2020): 612. http://dx.doi.org/10.21883/os.2020.05.49318.310-19.

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The luminescent coordination multi-ligand compounds of europium (III) with o-methoxybenzoic acid and island-containing phosphorus-containing neutral ligands of the composition Eu (MOBA) 3 • 3Н2О and Eu (MOBA) 3 • L, where MOBA is o-methoxybenzoic acid, D is hmpa (D hexamethylphosphoric triamide), tppo (triphenylphosphine oxide), Et6pa (hexaethylphosphotriamide). The composition, structure, and thermal properties of complex multi-ligand compounds of europium (III) were studied. It was shown that during thermolysis, detachment of a neutral ligand molecule occurs in one stage with an endothermic

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32

Liu, Shuang, C. Robert Lucas, Rosemary C. Hynes, and Jean-Pierre Charland. "Structure effects in copper coordination compounds of ligands with thioether, aromatic nitrogen, and ether donors." Canadian Journal of Chemistry 70, no. 6 (1992): 1773–83. http://dx.doi.org/10.1139/v92-222.

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Preparations of the ligands 1,9-bis(2-pyridyl)-2,5,8-trithianonane (L1) and 1,9-bis(2-pyridyl)-5-oxa-2,8-dithianonane (L2) and their copper(II) complex cations [Cu(L1)]2+ and [Cu(L2)]2+ as ClO4−, CF3SO3−, or BF4− salts are described. X-ray structures of both complex cations as perchlorates are reported. For [Cu(L1)](ClO4)2: space group Pbca, a = 10.4896(5), b = 12.9376(6), c = 33.3943(13) Å, Z = 8, Rf = 0.067, Rw = 0.074 for 1769 reflections. For [Cu(L2)](ClO4)2: space group P21/c, a = 14.388(2), b = 9.990(5), c = 16.076(3) Å, β = 107.919(12)°, Z = 4, Rf = 0.069, Rw = 0.089 for 2813 reflection

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Näther, Christian, Jan Greve, and Inke Jeß. "New Coordination Polymers Based On Transition Metal Squarates And Pyrazine Ligands." Zeitschrift für Naturforschung B 58, no. 1 (2003): 52–58. http://dx.doi.org/10.1515/znb-2003-0108.

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Abstract Three new coordination polymers have been prepared by hydrothermal reaction of squaric acid, pyrazine and the metal halides FeCl2 · 4H2O, CoBr2 and NiBr2. In their crystal structures the metal atoms are coordinated by four water molecules and two pyrazine ligands within slightly distorted octahedra. The pyrazine ligands connect the metal atoms via μ-N,N’-coordination to linear chains which are connected via hydrogen bonding. The squarate dianions are not coordinated to the metal atoms and are located between the chains. The thermal behaviour of all compounds was investigated using TG-

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Bessergenev, V. G., V. I. Belyi, A. A. Rastorguev, et al. "Electroluminescent ZnS:Mn films prepared at 220–450°C using complex compounds with sulphur-containing ligands." Thin Solid Films 279, no. 1-2 (1996): 135–39. http://dx.doi.org/10.1016/0040-6090(95)08170-4.

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35

Shamsutdinova, Medina Humaidovna, Nur-Magomed Rezvanovich Tashligov, and Yunus Yakubovich Kurbanov. "SYNTHESIS, STRUCTURE AND PROPERTIES OF COMPLEX COMPOUNDSOF COBALT (II) WITH BENZOXASINE DERIVATIVES." National Association of Scientists 1, no. 30(57) (2020): 75–78. http://dx.doi.org/10.31618/nas.2413-5291.2020.1.57.263.

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In this work, coordination compounds of Co (II) with derivatives of dihydro-4H-3,1-benzoxazines were synthesized by a chemical method and their composition, structure, and physicochemical properties were studied. ... According to the data of elemental analysis and analysis for metal, the obtained complex compounds have the composition ML2, where M is metal, L are ligands: 2- [2-hydroxyphenyl] -4,4-diphenyl-1,2-dihydro-4H-3,1benzoxazine (L1), 2- [2-hydroxy-5-nitrophenyl] -4,4-diphenyl-1 , 2-dihydro-4H-3,1-benzoxazine (L2), 2- [2hydroxynaphthyl] -4,4-diphenyl-1,2-dihydro-4H-3,1-benzoxazine (L3),

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36

Shoda, Takuji, Nobumichi Ohoka, Genichiro Tsuji, et al. "Targeted Protein Degradation by Chimeric Compounds using Hydrophobic E3 Ligands and Adamantane Moiety." Pharmaceuticals 13, no. 3 (2020): 34. http://dx.doi.org/10.3390/ph13030034.

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Targeted protein degradation using small chimeric molecules, such as proteolysis-targeting chimeras (PROTACs) and specific and nongenetic inhibitors of apoptosis protein [IAP]-dependent protein erasers (SNIPERs), is a promising technology in drug discovery. We recently developed a novel class of chimeric compounds that recruit the aryl hydrocarbon receptor (AhR) E3 ligase complex and induce the AhR-dependent degradation of target proteins. However, these chimeras contain a hydrophobic AhR E3 ligand, and thus, degrade target proteins even in cells that do not express AhR. In this study, we synt

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37

Jia, Wei-Guo, Ming-Xia Cheng, Li-Li Gao, et al. "A ruthenium bisoxazoline complex as a photoredox catalyst for nitro compound reduction under visible light." Dalton Transactions 48, no. 27 (2019): 9949–53. http://dx.doi.org/10.1039/c9dt00428a.

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A novel ruthenium(ii) complex containing bisoxazoline and bipyridine ligands has been synthesized and characterized, which shows high catalytic activities for nitro compounds in the presence of sodium borohydride and visible light.

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38

Honegger, Philipp, Lukas Scheibelberger, and Michael Widhalm. "Planar-Chiral P and N-bridged Diferrocenes." Molbank 2020, no. 2 (2020): M1130. http://dx.doi.org/10.3390/m1130.

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We describe the synthesis of planar-chiral diferrocene compounds 4, 7 and 12, intended as key precursors for a new family of asymmetric catalyst ligands with less complex structures than their popular equivalents. In contrast to conventional 1,2-disubstituted ferrocenes containing center-chiral and planar-chiral elements, these compounds are purely planar-chiral due to the absence of α-substiuted ethyl groups. The title compounds 4, 7 and 12 were obtained from known precursors in 87%, 59% and 60% yields, respectively.

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Aiyelabola, T. O., E. O. Akinkunmi, and O. Osungunna. "Syntheses, Characterization and Biological Activity of Coordination Compounds of Propanedioic Acid and its Mixed Ligand Complexes with N,N'-Dihydroxy-2,3-butanediimine." Asian Journal of Chemistry 33, no. 8 (2021): 1911–18. http://dx.doi.org/10.14233/ajchem.2021.23309.

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The coordination compounds of propanedioic acid with cobalt(II), nickel(II) and copper(II) ions were synthesized using metal:ligand 1:2. In addition to this, mixed ligand complexes using the same metal ions with propanedioic acid as the primary ligand and N,N'-dihydroxy-2,3-butanediimine as the secondary ligand were also synthesized using M:L1:L2 (1:1:1) where L1 = propanedioic acid, L2 = N,N'-dihydroxy-2,3-butanediimine and M = Cu(II), Ni(II) and Cu(II). The synthesized compounds were characterized using FTIR, UV-vis, magnetic susceptibility measurement and percentage metal composition. The l

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Huma, Rahila, Tariq Mahmud, Liviu Mitu, et al. "Synthesis, Characterization, Molecular Docking and Enzyme Inhibition Studies of Some Novel Enaminone Derivatives and Their Complexes with Cu(II), Cd(II) and Co(II) Ions." Revista de Chimie 70, no. 10 (2019): 3564–69. http://dx.doi.org/10.37358/rc.19.10.7597.

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Two new enaminone ligands, 3-chloro-4-{(4-chlorophenyl)amino}pent-3-en-2-one (Ac-PCA), 4-(benzylamino)-3-chloropent-3-en-2-one (Ac-BA) and their metal complexes with transition metal ions [Cu(II), Cd(II) and Co(II)] were prepared and subsequently characterized by FTIR, ICP-AES, UV-Vis, TGA, 1H NMR, 13C NMR and FAB-MS. These newly synthesized compounds were further investigated for anti-acetylcholinesterase (AChE) and anti-urease activities. The (Ac-BA)Cu(II) complex exhibited good anti-AChE while (Ac-BA)2Co(II) complex was potent against anti-urease activities. Other ligands and complexes show

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Toma, Monica, Agustín Sánchez, José Casas, et al. "New thallium(III) chloride complexes with pyridine carboxylic acids: from molecular compounds to supramolecular associations." Open Chemistry 1, no. 4 (2003): 441–64. http://dx.doi.org/10.2478/bf02475227.

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AbstractReactions of TlCl3 with picolinic acid (Hpic), nicotinic acid (Hnic), isonicotinic acid (Hinic) and 3-hydroxy-picolinic acid (H3hpic) afford the isolation of new chlorothallium(III) complexes. The compounds are characterized by IR, Raman and multinuclear NMR (1H,13C,205Tl). The molecular structures of [TlCl2(pic)(Hpic)]·0.5H2O (1), [TlCl2(nic)(Hnic)] (2), [TlCl(inic)2]·0.6C2H5OH (3) and [TlCl(3hpic)2(h3hpic)] (4) are determined by single-crystal X-ray diffraction. A distorted octahedral TlCl2N2O2 core containing the O,N-chelating ligands is achieved in the monomeric complex 1. The coor

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Nikolić, A. S., N. Cvetković, S. Djurić, J. Puzović, and M. B. Pavlović. "Temperature Influence on the Composition of Ni-Ferrite Powders Obtained from Complex Compounds with Acetylacetonato-Ligands." Materials Science Forum 282-283 (May 1998): 199–202. http://dx.doi.org/10.4028/www.scientific.net/msf.282-283.199.

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Sugiura, Chikara, Michihide Kitamura, and Shinji Muramatsu. "Influence of ligands on the x‐ray absorption near‐edge structure of palladium(II) complex compounds." Journal of Chemical Physics 85, no. 9 (1986): 5269–72. http://dx.doi.org/10.1063/1.451668.

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Kalinovskaya, I. V. "Mixed-Ligand Complex Compounds of Europium(III) with ortho-Methoxybenzoic Acid and Phosphorus-Containing Neutral Ligands." Optics and Spectroscopy 128, no. 5 (2020): 605–9. http://dx.doi.org/10.1134/s0030400x20050082.

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Diamant, Viktor. "NOVEL NON-AQUEOUS ELECTROLYTES BASED ON COORDINATION BORON COMPOUNDS." Ukrainian Chemistry Journal 87, no. 3 (2021): 41–60. http://dx.doi.org/10.33609/2708-129x.87.03.2021.41-60.

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The review provides a classification of electrolytes for modern chemical power sources, supercapacitors, sodium and lithium-ion batteries depending on changes in the physicochemical properties of salts and the products of their interaction with the solvent. A comparative analysis of physicochemical properties of salts depending on the structure of the cation and anion, and the influence of these properties on the properties of final solutions of electrolytes on the example of different classes of ionic liquids and chelatoborates of alkali metals and ammonium was conducted. The dependence of th

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Mansour, Ahmed M., and Krzysztof Radacki. "Antimicrobial properties of half-sandwich Ir(iii) cyclopentadienyl complexes with pyridylbenzimidazole ligands." Dalton Transactions 49, no. 14 (2020): 4491–501. http://dx.doi.org/10.1039/d0dt00451k.

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Ethyl group determined the toxicity of pyridylbenzimidazole Ir(iii) compounds and exchange of the group with sulfonate led to diminishing of the antibacterial activity. Increasing the metal content per complex, 3, gave rise to a compound with no toxicity.

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Schumann, Herbert, Katja Herrmann, and Frank Erbstein. "Organometallic Compounds of the Lanthanides 169. Lanthanidocene Complexes Containing Chiral Nitrogen-Functionalized Cyclopentadienyl Ligands." Zeitschrift für Naturforschung B 58, no. 9 (2003): 832–37. http://dx.doi.org/10.1515/znb-2003-0904.

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SmCl3 reacts with equimolar amounts of K[(S)-C5H4CHPhCH2NMe2] and Na[C5Me5] yielding [(S)-C5H4CHPhCH2NMe2](C5Me5)SmCl(1). The methylation of complex 1 with LiMe and the reactions of the known analogues of 1, [(S)-C5H4CHPhCH2NMe2](C5Me5)LnCl (Ln = Y (2), Lu (3)) with LiCH2SiMe3 afford [(S)-C5H4CHPhCH2NMe2](C5Me5)SmMe (4) and [(S)-C5H4CHPhCH2NMe2](C5Me5)LnCH2SiMe3 (Ln = Y (5), Lu (6)), respectively. The reactions of ScCl3 and LuCl3 with 1 equivalent of K[(S)-C5H4CHPhCH2NMe2] or K[C5H4CH2CH2NMe2] followed by 2 equivalents of Me3SiCH2Li yield the complexes [(S)-C5H4CHPhCH2NMe2] Ln(CH2SiMe3)2 (Ln =

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Dankert, Fabian, Lukas Erlemeier, Christian Ritter, and Carsten von Hänisch. "On the molecular architectures of siloxane coordination compounds: (re-)investigating the coordination of the cyclodimethylsiloxanes Dn (n = 5–8) towards alkali metal ions." Inorganic Chemistry Frontiers 7, no. 11 (2020): 2138–53. http://dx.doi.org/10.1039/d0qi00109k.

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Cyclodimethylsiloxanes have been used as complex ligands and silyl-ether bonding towards various cations is explored stepwise. Compounds with unprecedented coordination modes as well as novel molecular architectures are obtained and characterized.

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Tanabe, Makoto, Kimiya Tanaka, Shumpei Omine, and Kohtaro Osakada. "A triangular triplatinum(0) complex with bridging germylene ligands: insertion of alkynes into the Pt–Ge bond rather than the Pt–Pt bond." Chem. Commun. 50, no. 52 (2014): 6839–42. http://dx.doi.org/10.1039/c4cc00727a.

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A triangular triplatinum(0) complex with bridging germylene ligands was prepared and fully characterized. The Pt<sub>3</sub>Ge<sub>3</sub> core is bonded with electron-releasing GePh<sub>2</sub> and PMe<sub>3</sub> ligands. Insertion of alkyne into the Pt–Ge bonds results in the formation of germaplatinacyclic compounds.

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Ozheredov, S. P., O. M. Demchuk, P. A. Karpov, S. I. Spivak та Ya B. Blume. "Identification of plant α-tubulin amino acids playing a key role in specific binding of nitroaniline compounds". Faktori eksperimental'noi evolucii organizmiv 24 (30 серпня 2019): 333–37. http://dx.doi.org/10.7124/feeo.v24.1125.

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Aim. Computational prediction of amino acid residues critical for specific binding of nitro- and dinitroaniline compounds in plant α-tubulin. Methods. Protein structure modeling (I-Tasser, Grid-computing) and ligand library preparation, molecular docking (CCDC Gold), molecular dynamics (MD, Gromacs computing in Grid). Evaluation of the amino acid ensemble associated with ligand binding based on results of MD energy perturbations of protein-ligand complex. Results. The structural model of plant α-tubulin from Avena sativa was build. Also, the virtual library of 25 nitroaniline compounds was pre

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