Tuning the Supramolecular Structure through Variation of the Ligand Geometry and Metal Substituents–Diorganotin Macrocycles and Coordination Polymers Derived from <i>cis</i>- and <i>trans</i>-1,2-, 1,3-, and 1,4-Cyclohexanedicarboxylic and <i>cis</i>,<i>cis</i>-1,3,5-Cyclohexanetricarboxylic Acid
作者:Irán Fernando Hernández-Ahuactzi、Jorge Cruz-Huerta、Hugo Tlahuext、Victor Barba、Jorge Guerrero-Alvarez、Herbert Höpfl
DOI:10.1021/cg501629n
日期:2015.2.4
to determine whether macrocyclic or polymeric diorganotin dicarboxylates are formed dependent of the spatial orientation of the coordinating ligand functions and the organic substituents at the metal atom and to analyze conformational and topological variations in the resulting supramolecular aggregates. The single-crystal X-ray diffraction studies showed that besides the ligand geometry the substituents
顺式-和反式-1,2- chdcaH 2,1,3- chdcaH 2,和1,4- chdcaH 2(chdcaH 2 =环己烷二羧酸)以及顺式,顺式-1,3,5- chtcaH 3(chtcaH 3 =环己烷三羧酸)已用二甲基和二正丁基锡试剂处理过,对于1,4-chdcaH 2,还用二叔丁基试剂处理过。-丁基二氯化锡,以确定是否形成大环或聚合二有机锡二羧酸盐,具体取决于配位体官能团和金属原子上有机取代基的空间取向,并分析所得超分子聚集体的构象和拓扑变化。单晶X射线衍射研究表明,除了配体的几何形状以外,金属中心的取代基是形成单体,环寡聚或聚合物组装体的关键元素。其特征在于,X射线衍射分析中的化合物的两个表现出大环结构,[我2 SN(顺式- ë,一个-1,4- chdca)} 2 ]和[ Ñ卜2 SN(顺式- ë,一个-1,4- chdca)} 4 ]。对于大多数其余化合物,其组成为[R