The anisotropy of the fluorescence polarization has been measured as a function of temperature for the dimethylaminobenzonitrile (DMABN) in polar and non-polar solvents. In the electronically excited state, the DMABN molecule undergoes an internal charge-transfer process coupled to a conformational change (Twisted Intramolecular Charge Transfer, or TICT process). The different behaviour exhibited by locally excited (LE) and charge-transfer (CT) bands has been interpreted in terms of an extended Grabowski scheme, in which rotational diffusion of emitting molecules is taken into account.

Analysis of temperature dependent fluorescence polarization for dimethylaminobenzonitrile

BARBON, ANTONIO;
1995

Abstract

The anisotropy of the fluorescence polarization has been measured as a function of temperature for the dimethylaminobenzonitrile (DMABN) in polar and non-polar solvents. In the electronically excited state, the DMABN molecule undergoes an internal charge-transfer process coupled to a conformational change (Twisted Intramolecular Charge Transfer, or TICT process). The different behaviour exhibited by locally excited (LE) and charge-transfer (CT) bands has been interpreted in terms of an extended Grabowski scheme, in which rotational diffusion of emitting molecules is taken into account.
1995
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/145432
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