Preparation and crystal structure of two novel cadmium (II)-trimesates, Cd(HTMA)(NC5H5)2 · 0.5CH3OH · 0.5DMF and Cd(HTMA) · 2H2O |
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| Authors: | Wenjun Zheng Xi Liu Liyan Wu |
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| Affiliation: | a Department of Materials Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
b Department of Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China |
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| Abstract: | Two novel complexes, Cd(HTMA)(NC5H5)2 · 0.5CH3OH · 0.5DMF (1) and Cd(HTMA) · 2H2O (2), of cadmium (II)-trimesates are obtained from slow vapor diffusion and urea hydrolysis, respectively. The Cd(II) centers in the two complexes are bridged by three separate HTMA3− ligands using a same coordination fashion, which contains one monodentate and two chelating bidentate carboxyl groups to form the herringbone-like motif. The herringbone-like motif is further interlinked to construct the two-dimensional Cd(II)-HTMA layer, which is stacked by mutual π-stacking of pyridines for 1 and by hydrogen bond of waters for 2. Thermal stabilities of the two complexes were investigated and the results indicated that Cd(II)-TMA layers in the two complexes are stable still upon 190 °C. |
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| Keywords: | Crystal structures Cadmium (II) complexes Urea hydrolysis Trimesate complexes |
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