| TWISTED INTRAMOLECULAR CHARGE-TRANSFER OF METHYL P-DIMETHYLAMINOBENZOATE IN AQUEOUS BETA-CYCLODEXTRIN SOLUTION | |
| JIANG, YB ; Jiang YB(江云宝) | |
| 1995 | |
| 英文摘要 | This paper reports the investigation of the twisted intramolecular charge transfer (TICT) of methyl p-dimethylaminobenzoate (MDMAB) in aqueous beta-cyclodextrin (beta-CD) solution by the TICT-typical dual fluorescence. In pure water, MDMAB emits only LE fluorescence, and the TICT fluorescence band is developed with the addition of beta-CD. Both the LE and TICT fluorescence bands are continuously enhanced upon the increase of beta-CD concentration. The intensity ratio of the TICT band to the LE band shows a hillshaped dependence on beta-CD concentration, and a blue shift in both TICT and LE bands is observed with the increase of beta-CD concentration, of which the blue shift in TICT band is more appreciable. Formation of a 1:1 MDMAB-beta-CD inclusion complex, with an association constant of 580 +/- 801 mol-1, is evaluated. The effect of beta-CD on TICT of MDMAB is discussed, with consideration of the fact that aqueous beta-CD solution is pseudo-aquaorganic binary mixture and that TICT in aqueous solution acts differently than in organic solvents. A comparison is made between the TICT of MDMAB and of DMABN in aqueous beta-CD solution. |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 内容类型 | 期刊论文 |
| 源URL | [http://dx.doi.org/10.1016/0584-8539(94)E0006-V]  |
| 专题 | 化学化工－已发表论文 |
| 推荐引用方式 GB/T 7714 | JIANG, YB,Jiang YB. TWISTED INTRAMOLECULAR CHARGE-TRANSFER OF METHYL P-DIMETHYLAMINOBENZOATE IN AQUEOUS BETA-CYCLODEXTRIN SOLUTION[J],1995. |
| APA | JIANG, YB,&江云宝.(1995).TWISTED INTRAMOLECULAR CHARGE-TRANSFER OF METHYL P-DIMETHYLAMINOBENZOATE IN AQUEOUS BETA-CYCLODEXTRIN SOLUTION.. |
| MLA | JIANG, YB,et al."TWISTED INTRAMOLECULAR CHARGE-TRANSFER OF METHYL P-DIMETHYLAMINOBENZOATE IN AQUEOUS BETA-CYCLODEXTRIN SOLUTION".(1995). |
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