| Complexation of hypocrellins and bivalent metals and one-electron reduction of the complexes with electron donor |
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| 基金项目： | Project supported by the National Natural Science Foundation of China |
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| 摘 要： | The complexation of HA (or HB) with bivalent metals was examined by UV-Vis andNMR spectroscopy, and all of the complexes obtained have a metal-ligand ratio of 1:1.Thephotoinduced 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 byUV-Vis and ESR spectroscopy. The studies demonstrated that illumination of the complexes ofHA(HB)-Zn~(2+) and HA(HB)-Mg~(2+) led to the accumulation of the chelated semiquinone radicalanions.
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Complexation of hypocrellins and bivalent metals and one-electron reduction of the complexes with electron donor |
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| Authors: | Jing-Yi An Fei Tian Yi-Zhen Hu Li-Jin Jiang |
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| Abstract: | 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-Zn2+ and HA-Mg2+ (or HB-Zn2+, 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)-Zn2+ and HA(HB)-Mg2+ led to the accumulation of the chelated semiquinone radical anions. |
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