ISSN:
1600-5759
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
In the structure of the title compound, [Cu3Br2(C6H5N2O2)2(H2O)4], both copper(I) and copper(II) cations are present. The copper(II) cations are located on centres of inversion and are coordinated by two N atoms and two carboxylate O atoms from two symmetry-related 5-methylpyrazine-2-carboxylate anions, with two water molecules completing a distorted octahedron. The copper(I) cations are coordinated by the second N atom of the 5-methylpyrazine-2-carboxylate anion, one water molecule and two bromide anions within a distorted tetrahedron. Each of the bromide anions connects two symmetry-equivalent copper(I) cations to form zigzag-like CuBr chains. These chains are connected by the [diaquabis(5-methylpyrazine-2-carboxylato)]copper(II) complexes, forming corrugated sheets parallel to (100). The CuBr chains and the sheets are connected via O—H...O and O—H...Br hydrogen bonding.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0108270101016250
