Four new ternary complexes: [Cu(IP)(L-Val)(H2O)]ClO4·1.5H2O(1), [Cu(IP)(L-Leu)(H2O)]ClO4(2), [Cu(IP)(L-Tyr)(H2O)]ClO4·H2O(3) and [Cu(IP)(L-Trp)(H2O)]ClO4·1.5H2O(4) have ...Four new ternary complexes: [Cu(IP)(L-Val)(H2O)]ClO4·1.5H2O(1), [Cu(IP)(L-Leu)(H2O)]ClO4(2), [Cu(IP)(L-Tyr)(H2O)]ClO4·H2O(3) and [Cu(IP)(L-Trp)(H2O)]ClO4·1.5H2O(4) have been synthesized and character/zed by elementa/analysis, molar conductivity, infrared absorption spectroscopy, electronic absorption spectroscopy and cyclic voltammetry, where IP=imidazo[4,5-f][1,10] phenanthroline, L-Val=L-valinate, L-Leu=L-leucinate, L-Tyr=L-tyrosinate and L-Trp=L-tryptophanate. Complex 3 was structurally characterized by X-ray diffraction method, which crystallizes in orthorhornbic space group P21212 in a unit cell of dimensions a=3.0567(4) nm, b=0.74079(9) nm, c= 1.06198(13) nm, V=2.4047(5) nm^3, Z=4,μ=0.1084 cm^-1. The SOD-like activities of catalytic disrnutation of superoxide anions (O2^-· ) by the complexes were determined by means of modified nitroblue tetrazolium (NBT) photoreduction. The IC50 values of complexes 1, 2, 3 and 4 are 0.072, 0.147, 0.429 and 0.264 μmol·L^-1, respectively展开更多
基金Project supported by the Natural Science Foundation of Guangdong Province (No. 04105986).
文摘Four new ternary complexes: [Cu(IP)(L-Val)(H2O)]ClO4·1.5H2O(1), [Cu(IP)(L-Leu)(H2O)]ClO4(2), [Cu(IP)(L-Tyr)(H2O)]ClO4·H2O(3) and [Cu(IP)(L-Trp)(H2O)]ClO4·1.5H2O(4) have been synthesized and character/zed by elementa/analysis, molar conductivity, infrared absorption spectroscopy, electronic absorption spectroscopy and cyclic voltammetry, where IP=imidazo[4,5-f][1,10] phenanthroline, L-Val=L-valinate, L-Leu=L-leucinate, L-Tyr=L-tyrosinate and L-Trp=L-tryptophanate. Complex 3 was structurally characterized by X-ray diffraction method, which crystallizes in orthorhornbic space group P21212 in a unit cell of dimensions a=3.0567(4) nm, b=0.74079(9) nm, c= 1.06198(13) nm, V=2.4047(5) nm^3, Z=4,μ=0.1084 cm^-1. The SOD-like activities of catalytic disrnutation of superoxide anions (O2^-· ) by the complexes were determined by means of modified nitroblue tetrazolium (NBT) photoreduction. The IC50 values of complexes 1, 2, 3 and 4 are 0.072, 0.147, 0.429 and 0.264 μmol·L^-1, respectively