瓜环与四苯基卟啉锌的功能组装?

功能材料, 2015, (18): 18148-18152. doi: 10.3969/j.issn.1001-9731.2015.18.030

瓜环与四苯基卟啉锌的功能组装?

杨琴 ^1, , 李平义 ^2, , 胡力云 ^3, , 李晓莉 ^4, , 姜英 ^5,

1.西安建筑科技大学理学院,西安,710055

2.西安建筑科技大学理学院,西安,710055

3.西安建筑科技大学理学院,西安,710055

4.西安建筑科技大学理学院,西安,710055

5.西安建筑科技大学理学院,西安,710055

基金项目: 国家自然科学基金青年科学基金资助项目(21007050) 陕西省教育厅专项科研资助项目(12JK0455) 西安市碑林区科技局资助项目(GX1205)

关键词：瓜环 , 四苯基卟啉锌 , 荧光量子产率 , 溶解度

Functional assembly of cucurbiturils with zinc tetraphenylporphyrin

Keywords： cucurbiturils , zinc tetraphenylporphyrin , fluorescence quantum yield , solubility

采用紫外-可见吸收光谱(UV-Vis)、红外光谱(IR)、扫描电镜(SEM)技术探讨了瓜环 Q[7,8]与具有光动力疗效的光敏剂四苯基卟啉锌(ZnTPP)分子之间的组装作用.结果表明,Q[7,8]与 ZnTPP 均形成以1∶1为主的组装物；溶液 pH 值在5．0~11．0范围内,组装体较稳定；主-客体间的相互作用都能够自发进行,组装过程是放热反应,以熵驱动为主；与 ZnT-PP 相比,组装体的荧光量子产率并没有明显下降；ZnTPP与 Q[7,8]组装后,溶解度得到极大的提高.

The functional assembly between Q[7],Q[8]with zinc tetraphenylporphyrin (ZnTPP)were investi-gated by ultraviolet-visible absorption spectrum,infrared spectrum and scanning electron microscopy.The re-sults show that the assembly rate was about 1∶1 respectively between Q [7,8]and ZnTPP;when pH value of solution was in the range of 5.0-11.0,assembly was more stable;the thermodynamic data shows that assembly process was spontaneous,exothermic,and giving priority to entropy driven;fluorescence quantum of assembly was not significantly decreased when compared with ZnTPP;the solubility of ZnTPP have been improved ex-tremely as a result of assembled with Q [7,8].

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