Microenvironmental effects in the excited state properties of p-dimethylaminobenzonitrile complexed to α- and ß-cyclodextrin
- 10 February 2003
- journal article
- research article
- Published by Springer Nature
- Vol. 2 (3) , 203-211
- https://doi.org/10.1039/b211245k
Abstract
The steady state and time resolved fluorescence and the triplet–triplet absorption of p-dimethylaminobenzonitrile (DMABN) in presence of α- and β-cyclodextrin (CD) were investigated at various host and guest concentrations and temperatures. The formation of 1 : 1 and 1 : 2 DMABN : α-CD and 1 : 1 and 2 : 2 complexes DMABN : β-CD complexes was ascertained by applying global analysis methods. The “pure” fluorescence spectra as well as the emission quantum yields and lifetimes and the triplet properties of the various associates were determined. The role of environmental features in the radiative and non-radiative deactivation of the LE and ICT excited states of the complexed DMABN was elucidated.Keywords
This publication has 29 references indexed in Scilit:
- A spectroscopic and structural characterization of the inclusion complexes of p-dimethylaminobenzonitrile with cyclodextrinsPhysical Chemistry Chemical Physics, 2002
- Time-Resolved Study of the Triplet State of 4-dimethylaminobenzonitrile (DMABN)The Journal of Physical Chemistry A, 2001
- Dual emission from 4-dimethylaminobenzonitrile in cyclodextrin derivativesJournal of Photochemistry and Photobiology A: Chemistry, 2000
- Using the Decay of Incorporated Photoexcited Triplet Probes to Study Unilamellar Phospholipid Bilayer MembranesLangmuir, 1999
- Intramolecular Charge Transfer in Dual Fluorescent 4-(Dialkylamino)benzonitriles. Reaction Efficiency Enhancement by Increasing the Size of the Amino and Benzonitrile Subunits by Alkyl SubstituentsThe Journal of Physical Chemistry A, 1998
- Spectroscopic and Photochemical Study of Inclusion Complexes of Dimethoxybenzenes with CyclodextrinsThe Journal of Physical Chemistry, 1996
- Association of 1:1 Inclusion Complexes of Cyclodextrins into Homo- and Heterodimers: A Spectroscopic Study Using a TICT-Forming Fluorescent Probe as a Guest CompoundThe Journal of Physical Chemistry, 1995
- A study of the inclusion complexes of β-cyclodextrin with three electronic states of 4-(N,N-dimethylamino)benzonitrileJournal of Photochemistry and Photobiology A: Chemistry, 1994
- Dual luminescence of dimethylaminobenzonitrile in γ-cyclodextrin. Environmental effects on twisted intramolecular charge-transfer phenomenonJournal of the Chemical Society, Faraday Transactions, 1990
- Photophysical Primary Processes in Solutions of p‐Substituted DialkylanilinesBerichte der Bunsengesellschaft für physikalische Chemie, 1979