通过液相扩散法合成了一个新的配位聚合物Cu(CBA) PY2 (H2O)(CBA为4-(3('-)羧丙酰胺基)苯甲酸阴离子,Py为吡啶),并对该化合物进行了元素分析、红外、热重、粉末X射线衍射表征,其结构由X射线单晶衍射确定.该化合物属于单斜晶系,空间群P2/c,晶胞参数:C21 H21CuN3O6,a=2.15208(12) nm,b =0.57071 (3) nm,c=1.72977(9) nm,α=90°,β=94.3200(10)°,y=90°,R1=0.0296,wR2 =0.0801.在该配合物中,柔性二羧酸配体4-(3('-)羧丙酰胺基)苯甲酸阴离子桥联相邻的Cu(Ⅱ)离子形成一维链状结构,相邻链之间通过N-H…O和O-H…O氢键连接起来形成二维层状结构,层与层之间通过C-H…O氢键扩展成三维超分子结构.
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