On the complexes of yttrium chloride with carbamide and acetamide

Autor:	P. S. Kibal’nikov, G. A. Fedorova, M. G. Zaitseva, Dmitry V. Albov, V. V. Kravchenko, L. Yu. Alikberova, N. S. Rukk
Rok vydání:	2012
Předmět:	Chemistry Hydrogen bond Stereochemistry General Chemical Engineering General Chemistry Dihedral angle Chloride Tetragonal crystal system Crystallography chemistry.chemical_compound Pentagonal bipyramidal molecular geometry Atom medicine Molecule Acetamide medicine.drug
Zdroj:	Russian Journal of Coordination Chemistry. 38:240-244
ISSN:	1608-3318 1070-3284
DOI:	10.1134/s107032841204001x
Popis:	Data on the synthesis and the IR spectroscopic and X-ray diffraction analyses of new complexes of yttrium chloride with carbamide (Ur), [Y(Ur)4(H2O)4]Cl3 (I) and [Y(Ur)6(H2O)2]Cl3 (II), and with acetamide (AA), [Y(AA)5(H2O)2]Cl3 (III), are presented. The coordination of the ligands occurs through the oxygen atoms. For complexes I and II, the coordination polyhedra of the Y atoms are distorted tetragonal antiprisms. For structure III, the coordination polyhedron of the Y atom is a distorted pentagonal bipyramid. The coordination of four Ur molecules in complex I does not change their planar structure, and two Ur molecules in structure II have the dihedral angle N-C(O)-N different from 180°. The chloride ions are in the external sphere. Many hydrogen bonds are observed in the structures of complexes I–III.
Databáze:	OpenAIRE
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