Tafeenko Viktor A, Chernyshev Vladimir V
Chemistry Department, Moscow State University, 119899 Moscow, Russia.
Acta Crystallogr C. 2005 Jun;61(Pt 6):m298-300. doi: 10.1107/S0108270105013399. Epub 2005 May 20.
The coordination of the 3-cyano-4-dicyanomethylene-5-oxo-4,5-dihydro-1H-pyrrol-2-olate anion to Zn(II), the apical sites of which are occupied by two water molecules, results in the formation of two-dimensional layers of the title coordination polymer, {[Zn(C8HN4O2)2(H2O)2].2H2O}n, in which the Zn(II) cations lie on inversion centres in space group C2/c, with water ligands in the apical sites of octahedral geometry. Hydrogen bonds between coordinated and lattice water molecules, and pi-pi stacking interactions between the anions link adjacent layers into a continuous framework.
3-氰基-4-二氰基亚甲基-5-氧代-4,5-二氢-1H-吡咯-2-醇盐阴离子与锌（II）配位，锌（II）的顶端位点被两个水分子占据，从而形成了二维层状的标题配位聚合物{[Zn(C₈HN₄O₂)₂(H₂O)₂]·2H₂O}ₙ，其中锌（II）阳离子位于空间群C2/c的对称中心上，水配体位于八面体几何结构的顶端位点。配位水分子与晶格水分子之间的氢键以及阴离子之间的π-π堆积相互作用将相邻层连接成一个连续的骨架。
