behave as highly active heterogeneous catalysts. The coordination polymer 1 is more effective than 2, conceivably due to the higher Lewis acidity of the Zn(II) than the Cd(II) center and to a higher accessibility of the metal centers in the former framework. We have also checked the heterogeneity and recyclability of these coordination polymers, showing that they remain active at least after four recyclings
新的配位聚合物(CPS)[
锌(μ-1κ ø 1:1κ Ò 2 -L)(H 2 O)2 ] ñ ·N(H 2 O)(1)和[CD(μ 4 -1κ Ò 1 ø 2:2κ ñ:3,4κ ö 3 -L)(H 2 O)] ñ ·N(H 2 O)(2)的报告,由5的溶剂热反应来制备- (
芘-4-基甲基)
氨基}
间苯二甲酸(H 2 L)与Zn(NO 3)2 .6H 2 O或Cd(
NO3)2 ·4H 2 O,分别。它们分别在碱性
乙醇介质或
DMF:H 2 O混合物中合成。这些化合物的特征在于单晶X射线衍射,FTIR光谱,热重分析和元素分析。单晶X射线衍射分析表明,化合物1是一种维线性配位聚合物,而2所呈现的二维网络。在两种化合物中,配位
配体(L 2-)由于to环绕CH 2 -NH键的旋转而扭曲。在化合物1中,Zn(II)
金属离子具有四面体几何形状,而在化合物2中,双核[Cd 2(COO)2 ]部分充当二级结