| Enhancement of intramolecular excimer formation and photodimerization of anthrylmethyl α,ω-alkanedioates via hydrophobic interactions |
| |
| 作者姓名： | TUNG Chcn-Ho LI YiInstitute of Photographic Chemistry Chinese Academy of Sciences Beijing China |
| |
| 作者单位： | TUNG，Chcn-Ho LI，YiInstitute of Photographic Chemistry，Chinese Academy of Sciences，Beijing 100101，China |
| |
| 基金项目： | Project supported by the National Natural Science Foundation of China. |
| |
| 摘 要： | The fluorescence spectra and photodimerization of anthrylmethyl a,w-alkanedioates (A-Mn-A) both in organic and in aqueous organic mixed solvents have been studied.In aqueous organic mixed solvents strong intramolecular excimer emission is detected and the quantum yield for the intramolecular photodimerization is significantly greater than those in organic solvents.These observations suggest that hydrophobic interactions force A-Mn-A molecule to self-coil.The ratio of the head-to-head to head-to-tail products in the intramolecular photodimers of A-Mn-A depends on the length of the linking chain.This work presents a successful example of application of hydrophobic interactions to enhancement of large-ring formation.
|
Enhancement of intramolecular excimer formation and photodimerization of anthrylmethyl α,ω-alkanedioates via hydrophobic interactions |
| |
| TUNG,Chcn-Ho LI,YiInstitute of Photographic Chemistry,Chinese Academy of Sciences,Beijing ,China.Enhancement of intramolecular excimer formation and photodimerization of anthrylmethyl α,ω-alkanedioates via hydrophobic interactions[J].Chinese Journal of Chemistry,1995,13(6):532-538. |
| |
| Authors: | TUNG Chcn-Ho LI YiInstitute of Photographic Chemistry Chinese Academy of Sciences Beijing China |
| |
| Institution: | TUNG,Chcn-Ho LI,YiInstitute of Photographic Chemistry,Chinese Academy of Sciences,Beijing 100101,China |
| |
| Abstract: | The fluorescence spectra and photodimerization of anthrylmethyl a,w-alkanedioates (A-Mn-A) both in organic and in aqueous organic mixed solvents have been studied.In aqueous organic mixed solvents strong intramolecular excimer emission is detected and the quantum yield for the intramolecular photodimerization is significantly greater than those in organic solvents.These observations suggest that hydrophobic interactions force A-Mn-A molecule to self-coil.The ratio of the head-to-head to head-to-tail products in the intramolecular photodimers of A-Mn-A depends on the length of the linking chain.This work presents a successful example of application of hydrophobic interactions to enhancement of large-ring formation. |
| |
| Keywords: | Hydrophobic interaction intramolecular excimer photodimerization of 9-substi-tuted anthracene synthesis |
| 本文献已被 CNKI 等数据库收录！ |
