Lee Gene-Hsiang, Wang Hsin-Ta
Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei, Taiwan.
Acta Crystallogr C. 2007 May;63(Pt 5):m216-9. doi: 10.1107/S0108270107014527. Epub 2007 Apr 21.
N,N'-Bis(4-pyridylmethyl)oxalamide, C(14)H(14)N(4)O(2), exists as a dimer which is extended into a two-dimensional network with other dimers through pyridine-amide hydrogen bonds. The crystal structure of the title coordination polymer, {[CoCl2(C(14)H(14)N(4)O(2))].0.5H2O}n, features a one-dimensional zigzag chain, in which the cobalt ion sits at a twofold symmetry position and adopts a tetrahedral geometry, and the bridging ligand lies on an inversion center and connects to Co(II) ions in a bis-monodentate mode. Furthermore, two interwoven chains create a cavity of ca 8.6 x 8.6 A, which produces a three-dimensional channel. Water molecules are held in the channel by hydrogen bonds.
N,N'-双(4-吡啶甲基)草酰胺，C(14)H(14)N(4)O(2)，以二聚体形式存在，该二聚体通过吡啶 - 酰胺氢键与其他二聚体扩展成二维网络。标题配位聚合物{[CoCl2(C(14)H(14)N(4)O(2))].0.5H2O}n的晶体结构具有一维锯齿链，其中钴离子位于二重对称位置并采用四面体几何构型，桥连配体位于对称中心并以双单齿模式连接到Co(II)离子。此外，两条交织的链形成了一个约8.6×8.6 Å的空腔，产生了三维通道。水分子通过氢键保持在通道中。
