Effective reduction of <Emphasis Type="Italic">p</Emphasis>-nitrophenol catalyzed by nickel(II) adamantane complexes |
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| Authors: | Ying-Hua Zhou Su-Qin Wang Li-Qing Chen Dao-Yu Gong Ping Ni Yong Cheng |
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| Institution: | 1.College of Chemistry and Materials Science, Center for Nano Science and Technology, The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials,Anhui Normal University,Wuhu,China |
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| Abstract: | Two Ni(II) adamantane complexes, Ni(bqad)Cl2] (1) and Ni(bpad)(dmbp)(H2O)](ClO4)2·CH3OH H2O (2) (bqad = N,N′-bis(2-quinolinylmethyl) amantadine, bpad = N,N′-bis(2-pyridylmethyl)amantadine, dmbp = 5,5′-dimethyl-2,2′-bipyridine) have been synthesized and characterized by elemental analysis, infrared spectroscopy and single crystal X-ray diffraction. The nickel centers in complex 1 have a distorted tetragonal pyramidal geometry, while the coordination polyhedron of 2 can be described as a distorted octahedron. The reaction kinetics for reduction of p-nitrophenol to p-aminophenol catalyzed by these complexes has been investigated by UV–visible spectrophotometry. Complex 1 exhibits a higher turnover frequency of 1.4 min?1 for the reduction of p-nitrophenol. |
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