Thirumurugan A, Avinash M B, Rao C N R
Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P. O., Bangalore 560064, India.
Dalton Trans. 2006 Jan 7(1):221-8. doi: 10.1039/b512843a. Epub 2005 Nov 24.
A systematic study has been carried out on the three isomeric cyclohexanedicarboxylates (CHDCs) formed by cadmium and manganese with the three isomeric dicarboxylic acids, in the presence or absence of amines. The CHDCs have been prepared under hydrothermal conditions and their structures established by X-ray crystallography. We have been able to isolate two-dimensional layered structures of 1,2-, 1,3- and 1,4-cyclohexanedicarboxylates and chain structures of 1,3- and 1,4-cyclohexanedicarboxylates. The infinite metal-oxygen-metal linkages are observed only in the case of the 1,2-dicarboxylate. In all the three isomeric cyclohexanedicarboxylates, the e,e conformation is most favored, although the 1,4-CHDCs often contain rings in both the e,e and the a,e conformations.
在有或没有胺存在的情况下，对镉和锰与三种异构二元羧酸形成的三种异构环己烷二羧酸酯（CHDCs）进行了系统研究。CHDCs是在水热条件下制备的，其结构通过X射线晶体学确定。我们已经能够分离出1,2 -、1,3 -和1,4 -环己烷二羧酸酯的二维层状结构以及1,3 -和1,4 -环己烷二羧酸酯的链状结构。仅在1,2 -二羧酸酯的情况下观察到无限的金属 - 氧 - 金属键。在所有三种异构环己烷二羧酸酯中，e,e构象最有利，尽管1,4 - CHDCs通常同时包含e,e和a,e构象的环。
