摘要
The complexation of HA (or HB) with bivalent metals was examined by UV-Vis and NMR spectroscopy, and all of the complexes obtained have a metal-ligand ratio of 1:1.The photoinduced reduction of the complexes of HA-Zn^(2+) and HA Mg2+ (or HB-Zn^(2+), HB-Mg2+) in the presence of 1-benzyl-1,4-dihydro-nicotinamide as the electron donor was investigated by UV-Vis and ESR spectroscopy. The studies demonstrated that illumination of the complexes of HA(HB)-Zn^(2+) and HA(HB)-Mg^(2+) led to the accumulation of the chelated semiquinone radical anions.
The complexation of HA (or HB) with bivalent metals was examined by UV-Vis and NMR spectroscopy, and all of the complexes obtained have a metal-ligand ratio of 1:1.The photoinduced reduction of the complexes of HA-Zn^(2+) and HA Mg2+ (or HB-Zn^(2+), HB-Mg2+) in the presence of 1-benzyl-1,4-dihydro-nicotinamide as the electron donor was investigated by UV-Vis and ESR spectroscopy. The studies demonstrated that illumination of the complexes of HA(HB)-Zn^(2+) and HA(HB)-Mg^(2+) led to the accumulation of the chelated semiquinone radical anions.
基金
Project supported by the National Natural Science Foundation of China
