Pentaaqua(chelidonato-O4)copper(II) monohydrate

Autor:	R. A. Campbell, K. W. Muir, D. J. Robins, J. E. McKendrick, L. Manojlovic-Muir
Rok vydání:	1999
Předmět:	Hydrogen bond Chemistry Ligand Stereochemistry chemistry.chemical_element General Medicine Crystal structure Copper General Biochemistry Genetics and Molecular Biology chemistry.chemical_compound Crystallography Octahedron Molecule Carboxylate Hydrate
Zdroj:	Acta Crystallographica Section C Crystal Structure Communications. 55:178-180
ISSN:	0108-2701
DOI:	10.1107/s0108270198011895
Popis:	In crystals of pentaaqua(4-oxo-4H-pyran-2,6-dicarboxylato-O4)copper(II) hydrate, [Cu(C7H206)(H20)5]-H20, the Cu u cation is surrounded by an elongated 06 octahedron. The chelidonate anion {chel, [C5H202(COO)2] 2- } binds to the metal centre through the carbonyl rather than a carboxylate oxygen, and forms a long axial Cu--O bond [2.6746 (16)A]. The axial Cu---Oaqua bond is also relatively long [2.3763 (15)A]. The molecular assembly in the crystal is stabilized by a complex threedimensional network of intermolecular O--H. • -O bonds [O...O 2.597 (2)-2.851 (2) ,~], the water molecules providing the donors, and the carboxylate and carbonyl groups of the chel ligand most of the acceptors, of the hydrogen bonding.
Databáze:	OpenAIRE
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