Liao Ju-Hsiou, Shi Pei-Shan
Department of Chemistry and Biochemistry, National Chung Cheng University, 168 University Road, Min-Hsiung, Chia-Yi, Taiwan.
Acta Crystallogr Sect E Struct Rep Online. 2012 Oct 1;68(Pt 10):m1234. doi: 10.1107/S1600536812036896. Epub 2012 Sep 1.
The title compound, (C(2)H(8)N)(4)[Cu(C(6)H(2)N(10))(2)Cl(2)], consists of an anionic complex which is composed of a Cu(II) ion surrounded by four N atoms from two pyrazine-2,3-diylbis(1H-tetra-zol-1-ide) ligands, and two Cl(-) atoms in a trans-Cl(2)N(4) coordination geometry; the Cu(II) atom lies on a site of symmetry 2/m. The Cu-Cl distance of 2.8719 (5) Å is long due to the Jahn-Teller distortion of the d(9) electron configuration of Cu(II) ion. The tetra-zole and pyrazine rings make an N-C-C-N torsion angle of 38.25 (17)°. The charge of the anionic complex is balanced by four dimethyl-ammonium cations, which inter-act with the anionic complexes via N-H⋯N and N-H⋯Cl hydrogen bonds.
标题化合物(C₂H₈N)₄[Cu(C₆H₂N₁₀)₂Cl₂]由一个阴离子配合物组成，该阴离子配合物由一个Cu(II)离子构成，其周围有来自两个吡嗪-2,3-二基双(1H-四唑-1-ide)配体的四个N原子以及两个处于反式-Cl₂N₄配位几何构型的Cl⁻原子；Cu(II)原子位于2/m对称位点上。由于Cu(II)离子d⁹电子构型的 Jahn-Teller 畸变，Cu-Cl键长为2.8719 (5) Å，较长。四唑环和吡嗪环的N-C-C-N扭转角为38.25 (17)°。阴离子配合物的电荷由四个二甲基铵阳离子平衡，这些阳离子通过N-H⋯N和N-H⋯Cl氢键与阴离子配合物相互作用。
