二水双（烟酰胺 - κN(1)）双（硫氰酸根合 - κS）钴（II）
Di-aqua-bis-(nicotinamide-κN (1))bis-(thiocyanato-κS)cobalt(II).
作者信息
Pandey Deepanjali, Narvi Shahid S, Chaudhuri Siddhartha
机构信息
Department of Chemistry, Motilal Nehru National Institute of Technology, Allahabad 211 004, India.
Bose Institute, Kolkata 700 009, West Bengal, India.
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2014 May 31;70(Pt 6):m236. doi: 10.1107/S1600536814011453. eCollection 2014 Jun 1.
In the title compound, [Co(NCS)2(C6H6N2O)2(H2O)2], the Co(II) cation is located on an inversion centre and is coordinated by two thio-cyanate anions, two nicotinamide mol-ecules and two water mol-ecules in a distorted N2O2S2 octa-hedral geometry. The amide group is twisted by 31.30 (16)° with respect to the pyridine ring. In the crystal, mol-ecules are linked by O-H⋯O, O-H⋯S and N-H⋯S hydrogen bonds into a three-dimensional supra-molecular network. Weak π-π stacking is observed between parallel pyridine rings of adjacent mol-ecules, the centroid-centroid distance being 3.8270 (19) Å.
在标题化合物[Co(NCS)₂(C₆H₆N₂O)₂(H₂O)₂]中，Co(II)阳离子位于一个对称中心上，由两个硫氰酸根阴离子、两个烟酰胺分子和两个水分子以扭曲的N₂O₂S₂八面体几何构型配位。酰胺基团相对于吡啶环扭转了31.30 (16)°。在晶体中，分子通过O—H⋯O、O—H⋯S和N—H⋯S氢键连接成三维超分子网络。在相邻分子的平行吡啶环之间观察到弱的π - π堆积，质心间距为3.8270 (19) Å。
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