GETERONUCLEAR BIS(GALACTARATO)GERMINATES OF COBALT(ІІ), COPPER(ІІ), NICKEL(ІІ): SYNTHESIS, STRUCTURE AND CHEMICOPHYSICAL PROPERTIES
Journal Title: Вісник Одеського національного університету. Хімія - Year 2017, Vol 22, Issue 2
Abstract
Heterometallic bic(galactarato)germanates of cobalt(ІІ), copper(ІІ) and nickel(ІІ) were synthesized for the first time and characterized with the method of elemental analyses, thermogravimetry and IR-spectroscopy. The IR-spectrum of the synthesized compounds showed the presence of nas(COO-) ~ 1600 сm-1, ns(COO-) ~ 1390 сm-1 and valence vibrations of the bond M-O ~ 530 сm-1. All this points on the deprotonation of carboxylic groups. The values of valence vibrations of carboxylate ions, the absence of narrow band ν(ОН) at 3600 сm-1 and presence of ν(Ge-O) at 685 сm-1 allows us to conclude, that germanium coordination unit is formed by the bonding with oxygen atoms in hydroxyl groups and without any participation of ones in carboxylic groups. This statement is confirmed by the absence of hydroxyl ν(C-O) vibrations, which are specific for galactaric acid, and presence of alkoxyl n(С-О) vibrations. It was found that inner sphere of the synthesized compounds performs to be different-metal Ge4+–M2+ complex anion, the charge of which is neutralized by the hexa-aqua cation of 3d-meteal [М(Н2О)6][Ge(μ-HGala)2{М(H2O)2}2]·5H2O (HGala5- – galactaric acid anion, М – Сo2+, Ni2+, Cu2+). Their structure and chemical reaction is suggested to be next: GeCl4 + 2H6Gala + 3M(CH3COO)2 + 10NH4OH + 5H2O → [M(H2O)6][Ge(μ3-HGala)2{M(H2O)2}2]·5H2O + 6CH3COONH4 + 4NH4Cl
Authors and Affiliations
E. A. Chebanenko, E. E. Martsinko, I. I. Seifullina, E. V. Afanasenko
Keywords
Related Articles
- EP ID EP334685
- DOI 10.18524/2304-0947.2017.2(62).102207
- Views 79
- Downloads 0
SOME QUESTIONS OF THE SPECIATION ANALYSIS
Speciation analysis is considered to be one of actual trends of modern analytical chemistry. Based on the numerous monographs and reviews its general principles and features are reviewed. It was noticed that increasing o...
SYNTHESIS, STRUCTURE AND PROPERTIES OF MIXED-METAL Li-Ge(IV) COMPLEXES WITH CITRIC, TARTARIC AND XYLARIC ACIDS
Different-metal complexes of lithium and germanium(IV) with hydroxycarbonic acids – citric (H4Citr), tartaric (H4Tart) and xylaric (H5Xylar) have been obtained for the first time and characterized by methods of elemental...
THIN EMULSIFIED SOLUTIONS OF TRIALKYLAMINE IN KEROSENE AS COLLECTORS FOR FLOTATION–EXTRACTION OF THORIUM (VI) COMPOUNDS
The principle possibility of using the thin emulsified solutions of trialkylamine in kerosene as collector of thorium compounds for their flotation extraction has been established. The colloid- chemical properties of the...
FLOTATION SEPARATION OF SCANDIUM AND LANTHANUM OXALATE
The article provides the results of studies of flotation separation of scandium and lanthanum by transforming them into oxalate complexes (oxalate) followed by flotation using cationic collector – dodecylamine chloride....
THE INFLUENCE OF ALLOYING FILM-FORMING MATERIAL ZnS ON OPERATIONAL PROPERTIES OF COATINGS
The structure and properties of film-forming material ZnS containing oxide impurity are studied. Methods of the chemical analysis and spectroscopic research of products of exchange reactions establish the content of ZnO...