Abstract
Results of studies performed under the guidance of A. E. Shvelashvili and continued after his decease are analyzed. We consider the coordination compounds containing both mono- and dihydrazides of carbonic acids; in particular, monohydrazides of monobasic benzoic and m-hydroxy benzoic acids (BH=C6H5C(O)NHNH2, m-HBH=HOC6H5C(O)NHNH2) and dihydrazides (DHs) of dibasic acids: malonic, succinic, and glutaric (DM=H2NHN(O)C(CH2)C(O)NHNH2, DS=H2NHN(O)C(CH2)2C(O)NHNH2, and DG=H2NHNOC(CH2)3CONHNH2). Complex compounds of metals with carbonic acid hydrazides are grouped by the ratio between main components (M:Lig=1:1 and M:Lig=1:2) and by the gross formulas: M(Lig)XYnH2O and M(Lig)2XYnH2O, where M(II)=Ca, Mn, Fe, Co, Ni, Cu, Zn, and Sr; Lig=BH, m-HBH, DM, DS, DG, X, Y (X, Y=SO4 2s-, Cls-, NCSs-, CIO4 s-, Is-, NO3 s-, Brs-, and NO2 s-) are identical or different acido ligands, n=0-4. The compounds with carbonic acid dihydrazides are classified by the redistribution criterion of ligands in the -M-DH-M- bonds depending on the M:DH ratio and the nature of the acido ligand. A division into two groups is performed by the criteria: 1) pairs of metal atoms with single bis-bidentate bridges; 2) pairs of metal atoms with double bis-bidentate bridges. Packing features of structural units are revealed in compounds containing residuals of carbonic acid hydrazides.
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Original Russian Text Copyright © 2009 by È. B. Miminoshvili
Translated from Zhurnal Strukturnoi Khimii, Vol. 50, Supplement, pp. S174–S181, 2009.
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Miminoshvili, È.B. Metal hydrazide complexes. J Struct Chem 50 (Suppl 1), 168–175 (2009). https://doi.org/10.1007/s10947-009-0205-x
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DOI: https://doi.org/10.1007/s10947-009-0205-x