Study of the reactivity of Cd(II) with 4,6-dimethyl-2-thiopyrimidine. Crystal structure of 4,6-dimethyl-2-thiopyrimidinium trichlorocadmiatum(II)

Autor:	M.L. Godino-Salido, M.D. Gutierrez-Valero, Rafael López-Garzón, J.M. Moreno, R. Odedra
Rok vydání:	1995
Předmět:	Inorganic Chemistry Crystallography Octahedron Ionic strength Chemistry Hydrogen bond Potentiometric titration Materials Chemistry Reactivity (chemistry) Orthorhombic crystal system Crystal structure Physical and Theoretical Chemistry Carbon-13 NMR
Zdroj:	Inorganica Chimica Acta. 232:139-144
ISSN:	0020-1693
DOI:	10.1016/0020-1693(94)04370-b
Popis:	The distribution species and stability constants of the 4,6-dimethyl-2-thiopyrimidine (HL)/CdCl2 system have been determined by potentiometric measurements at 25 °C and 0.1 M KCl ionic strength. The solid complexes CdL(OH) and {[H2L]CdCl3}n were obtained and characterized by IR, 1H and 13C NMR spectroscopic amd thermal techniques. In addition, the structure of the complex {[H2L][CdCl3]}n has been established by single-crystal X-ray diffraction. Crystals of the compound are orthorhombic space group Pbca (No. 61) with cell constants a = 6.723(1), b = 17.624(4), c = 19.401(4) A , Z = 8, D c = 2.080 g cm −3 . The structure was solved and refined to R = 0.055 (Rw = 0.079) and consists of Cd(II) centres hexacoordinated by chloride ions in an octahedral arrangement. These octahedra are linked by opposite faces giving rise to infinite [CdCl3]n chains which are bridged by H2L units through hydrogen bonds.
Databáze:	OpenAIRE
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