论文部分内容阅读
合成了槲皮万寿菊素(Quercetagetin)与铁(Ⅲ)的配合物,采用红外光谱与紫外光谱分析其配位情况。分析测试了配体与配合物清除1,1-二苯基-2-苦基肼自由基(DPPH·)、超氧自由基(O_2~-·)和羟基自由基(·OH)的能力。在中性条件下,槲皮万寿菊素在A、C环与金属配位的可能性最大;在一定浓度条件下,槲皮素万寿菊素金属配合物对DPPH·、O_2~-·和·OH的清除率显然都要比槲皮素万寿菊素的自由基清除率高。
The complexes of Quercetagetin with iron (Ⅲ) were synthesized and their coordination status was analyzed by FTIR and UV spectroscopy. The ability of ligands and complexes to scavenge 1,1-diphenyl-2-picrylhydrazyl (DPPH ·), superoxide radical (O_2 ~ - ·) and hydroxyl radical (· OH) Under the neutral conditions, quercetin marigoldine is most likely to coordinate with the metal on the A and C rings. Under certain concentration conditions, quercetin marigoldine metal complexes have the highest potential for DPPH ·, O_2 ~ - · and · Obviously, the clearance rate of OH is higher than the free radical scavenging rate of quercetin marigoldin.