摘要
合成了三种新的配合物[Cu(TATP)(L-Val)(H2O)]ClO4.0.5H2O(1)、[Cu(TATP)(L-Ser)(H2O)]ClO4(2)、[Cu(TATP)(L-Arg)(H2O)]2ClO4.0.5H2O(3)(TATP=1,4,8,9-四氮三联苯,L-Val=L-缬氨酸,L-Ser=L-丝氨酸,L-Arg=L-精氨酸),并通过元素分析、红外光谱、紫外-可见光谱和摩尔电导率对其进行了表征。此外,用改进的氮蓝四唑(NBT)光还原法测定了上述配合物以及配合物[Cu(TATP)(L-Tyr)(H2O)]ClO4.H2O(4)(L-Tyr=L-酪氨酸)对O2-.歧化的催化作用。结果表明,配合物均具有良好的超氧化歧化酶(SOD)活性,在0.2~0.9μmol.L-1浓度范围内抑制率达到50%以上,活性大小按1>3>2>4排列。
Three new complexes [Cu(TATP)(L-Val)(H2O)]ClO4·0.5H2O(1)、[Cu(TATP)(L-Ser)(H2O)]ClO4(2)、[Cu(TATP)(L-Arg)(H2O)]2ClO·0.5H2O(3)(TATP=1,4,8,9-tetraazatriphenylene, L-Val = L-valinate, L-Ser = L-serinate, L-Arg = L-argininate) have been synthesized and characterized by elemental analysis, infrared absorption spectrum, electronic absorption spectrum and molar conductivity. The SOD-like activities of the complexes above and complex [Cu(TATP)(L-Tyr)(H2O)]ClO4·H2O(4)(L-Tyr=L-tyrosinate) have been determined by improved nitroblue tetragolium (NBT)-illumination method, the results indicate that the complexes possess excellent SOD-like activities and show 50 % inhibition ratio in the concentration of 0.2 - 0.9μmol·L^-1 with complex 1 〉 3 〉 2 〉 4.
出处
《化学通报》
CAS
CSCD
北大核心
2007年第6期450-455,共6页
Chemistry
基金
广东省自然科学基金重点项目(04105986)资助