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^...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.展开更多
基金Project supported by the National Natural Science Foundation of China
文摘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.
