摘要:
IntroductionRecently,1carboxylatebridged ligands have been reported in a number of applications, for example, as potential zeolites,2and for their magnetic,3conducting4and non-linear optical properties.5Research performed on several metals (alkali and alkaline earth, transition, rare earth and actinoid elements) with these ligands has provided an insight into these new properties.6On the other hand, the fascinating structural variety formed through cooperative hydrogenbonding interactions results in new crystalline architectures and it is these hydrogenbonding interactions that play an important role in biological processes.7Our investigations have thus been focused on extended solid frameworks with malonic acid. This research8encouraged us to look also at biologically important dicarboxylic acids,7such as oxalic acid. There is a wide variety of topologies for the coordination geometries of oxalic acid with different metal ions (Scheme 1). The aim of this research is to present a new coordination mode for oxalatobridged copper(II) complexes (Scheme 2), leading to the 2Dpolymeric compound [Cu3(C2O4)2(C2H8N2)4(ClO4)2]n·2H2O which was characterized by single crystal Xray structure analysis.
ISSN:1466-8033
DOI:10.1039/b100665g
出版商:RSC
年代:2001
数据来源: RSC