Kundu, Santi ; Chattopadhyay, Nitin (1995) Dual luminescence of dimethylaminobenzaldehyde in aqueous β-cyclodextrin: non-polar and TICT emissions Journal of Photochemistry and Photobiology A: Chemistry, 88 (2-3). pp. 105-108. ISSN 1010-6030
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Official URL: http://www.sciencedirect.com/science/article/pii/1...
Related URL: http://dx.doi.org/10.1016/1010-6030(94)04006-N
Abstract
Absorption as well as steady-state and time-resolved emission studies of p-dimethylaminobenzaldehyde (DMABA) in aqueous β-cyclodextrin (βCD) solutions have been reported. Dual fluorescence corresponding to the non-polar (NP) and twisted intramolecular charge transfer (TICT) has been observed. Two types of ground state DMABA-βCD complexes are proposed. The twisted intramolecular charge transfer (TICT) emission is severely suppressed for the complex where the fluorophore is totally encapsulated but it is enhanced due to the reduced polarity imposed by the βCD-microenvironment for the complex where DMABA is only partially enclosed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Dual Luminescence; Dimethylaminobenzaldehyde; β-cyclodextrin; Non-polar Emission; TICT Emission |
| ID Code: | 67422 |
| Deposited On: | 31 Oct 2011 04:49 |
| Last Modified: | 31 Oct 2011 04:49 |
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