In the structure of the title compound, [CuBr(C6H8N2)](n), each Cu2+ cation is surrounded by two 2,3-dimethylpyrazine ligands and two Br- anions in a distorted tetrahedral arrangement. The Cu2+ cations and Br- anions form (Cu2Br2)(2) rhomboid dimers located around a centre of inversion. The 2,3-dimethylpyrazine ligands connect the Cu2+ cations in the dimers into sheets parallel to (010).
Design and synthesis of magnetic ladders: structure and magnetic properties of Cu(2,3-dimethylpyrazine)Br2
作者:Brian M. Wells、Christopher P. Landee、Mark M. Turnbull、Firas F. Awwadi、Brendan Twamley
DOI:10.1016/j.molcata.2004.09.068
日期:2005.3
The compound copper(2.3-dimethylpyrazine)dibromide has been prepared and its structure solved by single crystal X-ray diffraction. The compound occurs as a coordination polymer with chains of Cu-2,3-dimethylpyrazine groups cross-linked into a ladder structure by the bromide ions. Magnetic susceptibility and magnetization data support a ladder model. (C) 2004 Elsevier B.V. All rights reserved.