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A determination of the structure of the intramolecular charge transfer state of 4-dimethylaminobenzonitrile (DMABN) by time-resolved resonance Raman spectroscopy

Kwok, WM and Ma, C and Matousek, P and Parker, AW and Toner, WT and Umapathy, S and Towrie, M and Phillips, D (2001) A determination of the structure of the intramolecular charge transfer state of 4-dimethylaminobenzonitrile (DMABN) by time-resolved resonance Raman spectroscopy. In: Journal of Physical Chemistry A, 105 (6). pp. 984-990.

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Official URL: http://pubs.acs.org/doi/abs/10.1021/jp003705w

Abstract

Picosecond time-resolved resonance Raman spectra of the A (intramolecular charge transfer, ICT) state of DMABN, DMABN-d(6) and DMABN-N-15 have been obtained. The isotopic shifts identify the nu (s)(ph-N) mode as a band at 1281 cm(-1). The similar to 96 cm(-1) downshift of this mode from its ground state frequency rules out the electronic coupling PICT model and unequivocally supports the electronic decoupling TICT model. However, our results suggest some pyramidal character of the A state amino conformation.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to American Chemical Society.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 02 Aug 2011 09:39
Last Modified: 02 Aug 2011 09:39
URI: http://eprints.iisc.ernet.in/id/eprint/39325

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