-DIAQUABIS(PYRIDINE-2-CARBOXAMIDE-N-1,O)COPPER(II) DICHLORIDE AND DIBROMIDE

Authors
SIERON L BUKOWSKASTRZYZEWSKA M
Citation
L. Sieron et M. Bukowskastrzyzewska, -DIAQUABIS(PYRIDINE-2-CARBOXAMIDE-N-1,O)COPPER(II) DICHLORIDE AND DIBROMIDE, Acta crystallographica. Section C, Crystal structure communications, 53, 1997, pp. 296-298
Citations number
12
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
53
Year of publication
1997
Part
3
Pages
296 - 298
Database
ISI
SICI code
0108-2701(1997)53:<296:-DAD>2.0.ZU;2-X
Abstract
Crystals of the title compounds, [Cu(C6H6N2O)(2)(H2O)(2)]Cl-2, (I), an d [Cu(C6H6N2O)(2)(H2O)(2)]Br-2, (II), are isomorphic. The structures c onsist of centrosymmetric complex cations and separate chloride or bro mide ions linked by hydrogen bonding. The pyridine-2-carboxamide molec ules (C6H6N2O) are coordinated by the ring N and amide O atoms, formin g the base of an elongated octahedron. Bond lengths in O and (II), res pectively: short Cu-N of 1.960(1) and 1.965(2), Cu-O of 1.981(1) and 1 .981(2), and axial Cu-H2O of 2.418(2) and 2.417 (3) Angstrom.