The effect of reaction conditions on the nature of cadmium 1,3,5-benzenetricarboxylate metal-organic frameworks
Burrows, A. D., Frost, C. G., Kandiah, M., Keenan, L. L., Mahon, M. F., Savarese, T. L. and Warren, J. E., 2011. The effect of reaction conditions on the nature of cadmium 1,3,5-benzenetricarboxylate metal-organic frameworks. Inorganica Chimica Acta, 366 (1), pp. 303-309.
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The product from the reaction between Cd(NO3)(2)center dot 4H(2)O and 1,3,5-benzenetricarboxylic acid (H(3)btc) in DMF at 95 degrees C depends on the reaction time, with [Cd(Hbtc)(H2O)(2)] 1 and [Cd(Hbtc)(DMF)(2)] 2 isolated after heating for 10 min, the latter after standing the solution for 1-2 weeks at room temperature. [Cd-3(btc)(2)(H2O)(9)]center dot 4H(2)O 3 was isolated after heating for 1 h, whereas [Cd-12(btc)(8)(DMF)(14)(OH2)(2)]center dot 1.5DMF 4 was isolated after heating for 2 days. Compounds 1 and 3 have been previously reported, whereas 2 and 4 are both new. Compound 2 adopts a two-dimensional sheet structure, with the coordinated DMF ligands projecting from both sides of the sheets, whereas 4 has a complex three-dimensional structure related to the fsc net. When the reaction was repeated in the presence of pyrazine (pyz), the product [Cd(Hbtc)(pyz)(DMF)]center dot DMF 5 was isolated as a minor compound. Compound 5 has a two-dimensional structure, with Cd-Hbtc zig-zag chains linked into sheets through the pyrazine ligands.
|Creators||Burrows, A. D., Frost, C. G., Kandiah, M., Keenan, L. L., Mahon, M. F., Savarese, T. L. and Warren, J. E.|
|Uncontrolled Keywords||coordination polymer,cadmium,x-ray structural analyses,benzenetricarboxylate,metal-organic framework|
|Departments||Faculty of Science > Chemistry|
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