超分子化合物[(C_6H_6N_2O)_2Co·2H_2O]·2NO_3的合成和晶体结构  

Synthesis and Crystal Structure of a Supermolecular Complex [(C_6H_6N_2O)_2·Co·2H_2O]·2NO_3

作　　者：黄蓓[1] 辛凌云[1] 杜巧云[1] 

机构地区：[1]洛阳师范学院化学系,河南洛阳471022

出　　处：《化学世界》2007年第3期132-134,138,共4页Chemical World

基　　金：河南省教育厅资助项目(2006150016)

摘　　要：合成了一个钴配合物[(C6H6N2O)2Co.2H2O].2NO3。该化合物属单斜晶系,P2(1)/n空间群,其化学式为:C12H16CoN6O10,Mr=463.24;晶胞参数:a=0.69527(10)nm,b=1.12250(15)nm,c=1.20352(17)nm,β=97.740(2)°,V=0.9307(2)(nm)3,Z=2,Dc=1.653 mg/m3,F(000)=474,μ=0.989 mm-1,最终偏离因子R1=0.0301,wR2=0.0791。配合物基本单元中含有一个Co(Ⅱ)离子、两分子吡啶酰胺、两分子配位水和两分子硝酸根离子。Co2+离子为六配位的畸变的八面体构型。另外,配合物中存在着丰富的氢键,这些分子间氢键相互加强了相邻单元间的结合,使晶体呈现三维网络超分子结构。Synthesis of a new supermolecular cobalt （ Ⅱ） complex [ （C6H6N2O）2Co·2H2O] .2NO3 has been achieved by the reaction of Co（NO3 ）2 with picolinamide. Crystal data for the title compound are： monoclinic, space group P2（ 1 ）/n ; a = 0.69527（10） nm, b = 1.12250（15） nm, c = 1.20352（17） nm,β = 97.740（2）°, V = 0.9307（2）（nm）^3, Z = 2, Dc = 1.653 mg/m^3, F（000） = 474, u = 0.989 mm^-1, formula： C12 H16 CoN6O10, Mr = 463.24, Dc = 1.655 mg/m^3, R = 0. 0301, wR = 0.0791, The complex consists of Co（ Ⅱ ）, two picolinamides,coordinate water and nitrate radical. Co^2＋ shows a six-coordinated distorted octabedral geometries. In addition, there are abundant hydrogen bonds in the complex such as： hydrogen bonds of O atoms from NO3^- radicals with H atom from the H2O,N atom from amine,C-H atom from pyridinering. By these, the complex forms three net supermolecular structure.

关 键 词：2-吡啶酰胺 钴(Ⅱ) 超分子 配合物 

分 类 号：O641.4[理学—物理化学]