| 槲皮素合铜(Ⅱ)配合物的配位化学研究 |
| |
| 引用本文： | 谭君.槲皮素合铜(Ⅱ)配合物的配位化学研究[J].重庆教育学院学报,2006,19(6):11-12,15. |
| |
| 作者姓名： | 谭君 |
| |
| 作者单位： | 重庆教育学院生命科学与化学系,重庆,400067 |
| |
| 摘 要： | 槲皮素对金属离子具有强烈的螯合作用。本文研究表明在pH4．6的HAc—NaAc缓冲液中，槲皮素能与Cu（Ⅱ）形成稳定的配合物，在紫外光谱中其吸收带Ⅰ比单独槲皮素红移了59nm。采用等摩尔连续变化法测得槲皮索-Cu（Ⅱ）配合物的配位比为2：1，采用平衡移动法测得配合物的稳定常数为2．0410^8。并初步探讨了槲皮素与Cu（Ⅱ）配位的部位是30H～4C=0。
|
| 关 键 词： | 槲皮素 铜(Ⅱ)配合物 配位 |
| 文章编号： | 1008-6390（2006）06-0011-03 |
| 收稿时间： | 09 8 2006 12:00AM |
| 修稿时间： | 2006-09-08 |
Study of complexes of quercetin with Cu (Ⅱ) |
| |
| TAN Jun.Study of complexes of quercetin with Cu (Ⅱ)[J].Journal of Chongqing College of Education,2006,19(6):11-12,15. |
| |
| Authors: | TAN Jun |
| |
| Institution: | Department of Life Science and Chemistry, Chongqing Education College, Chongqing 400067, China |
| |
| Abstract: | Quercetin can strongly chelate metal ions.The research in this paper indicated that the stable complex was formed between quercetin and copper ion(Cu(II)) in HAc-NaAc buffer(pH=4.6).Compared with quercetin alone,quercetin-Cu(II) complexes produced large bathochromic shifts(59nm) in band I maxima in ultraviolet spectra.The ratio of Que to Cu(II) in the complex was 2:1 by method of equimolar continuous variation.The stability constant of the complexes was 2.04108,which was tested by mobile equilibrium method.The preferentially occupied chelating site of quercetin with Cu(II) was 3OH~4C=O. |
| |
| Keywords: | quercetin Cu(II) complexes coordination |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
