| 19572492 |
Jenkins RM, Singleton ML, Almaraz E, Reibenspies JH, Darensbourg MY: Imidazole-containing (N3S)-Ni (II) complexes relating to nickel containing biomolecules. Inorg Chem. 2009 Aug 3;48(15):7280-93.
Dimeric (N (2) S) Ni complexes and the monomeric N (2) S (2) bismercaptodiazacycloheptane nickel complex, (bme-dach) Ni, serve as precursors to two N (2)-, N'-/ S- complexes where N (2) = diazacycloheptane, N' = imidazole and S = thiolate. As rare examples of nickel complexes containing a mixed thiolate/imidazole ligand set, these complexes are characterized by X-ray diffraction, UV/vis, and variable temperature (1) H NMR spectroscopies, and electrochemistry. Density functional theory computations relate the orientation of the imidazole with respect to the N (2) N'SNi square plane to the VT NMR observed fluxionality and activation parameters. The superoxide dismutase activity of the imidazole complexes was investigated by the nitroblue tetrazolium assay. |
1(0,0,0,1) |