CAJ | 학술논문

A hydrogen-bonded three-dimensional cobalt(II) compound, {[Co(2,2′-bipy)- (Hbtc)(H2O)3](3H2O}n 1 (H3btc = 1,3,5-benzenetricarboxylic acid, 2,2′-bipy = 2,2′-bipyridine), has been synthesized and characterized by single-crystal X-ray diffraction analysis, IR and TGA. Compound 1 crystallizes in monoclinic, space groups P21/n, C19H36CoN2O12, Mr = 543.43, a = 7.6930(2), b = 19.3715(6), c = 15.9408(5)A, β = 95.8750(10)o, V = 2363.10(12)A3, Z = 4, Dc = 1.527 g/cm3, μ = 0.792 mm-1, F(000) = 1148, R = 0.0489 and wR = 0.1437 for 4085 reflections. The Co(II) atom is coordinated by an oxygen atom of monodentate Hbtc2-, two nitrogen atoms of 2,2′-bipy and three water molecules into a slightly distorted octahedral geometry. The inter- molecular hydrogen bonding interactions among the adjacent [Co(2,2′-bipy)(Hbtc)(H2O)3] extend the compound into a three-dimensional porous supramolecular framework. The uncoordinated water molecules act as space-fillers and consolidate the whole architecture through the hydrogen bonding interactions.