Preparation, crystal structures and oxidation activity of two novel nickel(II) complexes of tripodal ligand containing coordinated solvent molecules |
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Authors: | Hong Yang Hong Gao Ke Wang Zhihui Zhang |
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Institution: | (1) Department of Chemistry, Nankai University, Tianjin, 300071, P. R. China |
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Abstract: | Two novel NiII complexes, Ni(TMPzA)(CH3CN)(H2O)]· (ClO4)2
(1) and Ni(TMPzA)(CH3OH) (NCS)]· (ClO4) (2), where TMPzA = tris(3,5-dimethyl-1-pyrazolemethyl)amine], have been synthesized and characterized. Their crystal structures
were determined by X-ray diffraction analysis. Both complexes were isolated from the reactions of TMPzA ligand with metal
salts, and thiocyanate as the second ligand in CH3CN solution for (1) and in CH3OH solution for (2), respectively. The title complexes are mononuclear structures, and which further assembled into a dimer by the intermolecular
hydrogen bond in the unit cell, respectively. The solvent molecules participate in coordination. The spectra properties of
the two complexes in solution have been further studied and discussed. The oxidation of styrene catalyzed by the title complexes
has been studied, and the new complexes show some catalytic activity under the reaction conditions. |
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Keywords: | |
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