ChemInform Abstract: MISCHKOMPLEXE VON KOBALT, NICKEL UND ZINK MIT AMINOSAEUREN UND CARBONSAEUREHYDRAZIDEN

Fridman, Ya. D.; Svanidze, O. P.; Dolgashova, N. V.; Gogorishvili, P. V.

doi:10.1002/chin.197509350

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results of [18,19] and the present research (Table 8) show that the attachment of one molecule of imidazole to the copper ion increases the stability constant logarithm of the complex ion by approximately 3.5-4 units. The authors in [31] estimate the compatibility of different ligands (L, A) in the inner sphere of the complex with a 1:1:1 composition by using the value of the kS co-proportioning constant, which is related to the common stability constants of the complexes by the ratio of lgkS = lgβ(MLA) − ½(lgβ(ML2) + lgβ(MA2)). When the ligands are compatible, kS > 1, and the MLC stability constant is The electronic absorption spectra of the systems (Figures 4 and 5) confirm the formation of MLC in the solution.…”

Section: Determination Of Composition and Stabilitymentioning

confidence: 99%

Interaction of Copper(II) Ions with Certain Oxyacids and Azoles

Skorik,

Tomilova,

Pastushchak

et al. 2023

Inorganics

View full text Add to dashboard Cite

Compounds composed of [[Cu(HIm, metIm)2‒3L] ∙ nH2O (n = 0, 2) were obtained during the interaction of slightly soluble tartrate and copper(II) salicylate composed of CuL ∙ nH2O (n = 1–2, L2−—Tar2−, Sal2−) with imidazole (HIm) and 2-methylimidazole (metIm). Mono- and bi-ligand salts were analyzed; the process of their thermal decomposition was studied. The solubility constants KS of the CuC4H4O6 ∙ 2H2O tartrate and CuC7H4O3 ∙ H2O salicylate of copper(II) with at ionic strength of 0.3 were determined. The IR spectroscopy method showed the participation in complexation of the nitrogen atom N(3) of imidazole and the oxygen atoms of the carboxyl groups of oxyacids, as well as the hydroxyl group of salicylic acid in the mixed-ligand salts of copper(II). The compositions and stability of the imidazole-tartrate(salicylate) copper(II) complexes in an aqueous solution were determined by performing photometry and spectrophotometry and of the monoligand complexes [CuTar] and [CuSal] were determined by solubility and isomolar series methods.

show abstract

Section: Determination Of Composition and Stabilitymentioning

confidence: 99%