首页 | 本学科首页   官方微博 | 高级检索  
     检索      

β-环糊精-乙酰二茂铁缩氨基硫脲包合物特征及微环境效应研究
引用本文:张境,刘万毅,张霞.β-环糊精-乙酰二茂铁缩氨基硫脲包合物特征及微环境效应研究[J].光谱学与光谱分析,2005,25(10):1568-1572.
作者姓名:张境  刘万毅  张霞
作者单位:宁夏大学能源化工重点实验室,宁夏,银川,750021
基金项目:教育部重点研究计划资助课题(2002-2004)和宁夏自然科学基金资助课题(2002-B024)资助项目
摘    要:用饱和水溶液法制备了β-环糊精(-βCD)-乙酰二茂铁缩氨基硫脲(TAF)的超分子包合物,并研究了其形成特征。元素分析及溶解常数测定结果证明两者形成了1∶1型包合物,UV-Vis光度法求得包合常数K为2.27×102L.mol-1。通过UV,FTIR,X射线粉末衍射进一步研究包结特性。同时,从微环境的角度研究了不同溶剂对-βCD-TAF和TAF的UV光谱的影响以及在水溶液体系中pH值的变化对TAF和包合物的影响特征。结果表明溶液中不同微环境对客体及超分子包合物的电子光谱有着显著不同的影响。

关 键 词:乙酰二茂铁缩氨基硫脲  β-环糊精  超分子包合物  电子光谱  微环境效应
文章编号:1000-0593(2005)10-1568-05
收稿时间:2004-05-16
修稿时间:2004-10-06

Study of the Characterization of β-Cyclodextrin-Acetylferrocene-Thiosemicarbazone Inclusion Complex and Micro-Environmental Effects
ZHANG Jing,LIU Wan-yi,ZHANG Xia.Study of the Characterization of β-Cyclodextrin-Acetylferrocene-Thiosemicarbazone Inclusion Complex and Micro-Environmental Effects[J].Spectroscopy and Spectral Analysis,2005,25(10):1568-1572.
Authors:ZHANG Jing  LIU Wan-yi  ZHANG Xia
Institution:Key Laboratory of Energy Sources and Engineering, Ningxia University, Yinchuan 750021, China.
Abstract:Inclusion complex of acetylferrocene-thiosemicarbazone(TAF) with beta-cyclodextrin(beta-CD) has been prepared by using kneading method. Elemental analysis and the solubility determination proved that 1:1 inclusion complex has been formed. Characterization of the inclusion complex was studied by UV, FTIR, and X-ray diffractometry. The association constant was calculated to be 227 L x mol(-1) from the straight portion of the phase-solubility diagram. Furthermore, the influence of different solvents and pH on UV spectrum of acetylferrocene-thiosemicarbazone and beta-CD -TAF was discussed respectively. The results show that different micro-environment has apparently different effects on electric spectra of guest and inclusion complexes.
Keywords:
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号