Direct observation of a hydrogen-bonded charge-transfer state of 4-dimethylaminobenzonitrile in methanol by time-resolved IR spectroscopy

Wai Ming Kwok, Michael W. George, David Grills, Chensheng Ma, Pavel Matousek, Anthony W. Parker, David Phillips, William T. Toner, Michael Towrie

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

Anomalies in the fluorescence spectra of dual fluorescence molecules explained? A comparison of the time-resolved I R absorption of the C≡N band of photoexcited 4-dimethylaminobenzonitrile in MeCN and MeOH provides the first direct observation of the formation of a hydrogen-bonded intramolecular charge-transfer (ICT) state in MeOH and its coexistence with a "free" ICT state (see picture). The so-called dual fluorescence will be triple, not dual.

Original languageEnglish
Pages (from-to)1826-1830
Number of pages5
JournalAngewandte Chemie - International Edition
Volume42
Issue number16
DOIs
Publication statusPublished - Apr 25 2003

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Methanol
Charge transfer
Hydrogen
Infrared spectroscopy
Fluorescence
Molecules

Keywords

  • Charge transfer
  • Cyanides
  • Fluorescence
  • Hydrogen bonds
  • IR spectroscopy
  • Time-resolved spectroscopy

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Direct observation of a hydrogen-bonded charge-transfer state of 4-dimethylaminobenzonitrile in methanol by time-resolved IR spectroscopy. / Kwok, Wai Ming; George, Michael W.; Grills, David; Ma, Chensheng; Matousek, Pavel; Parker, Anthony W.; Phillips, David; Toner, William T.; Towrie, Michael.

In: Angewandte Chemie - International Edition, Vol. 42, No. 16, 25.04.2003, p. 1826-1830.

Research output: Contribution to journalArticle

Kwok, Wai Ming ; George, Michael W. ; Grills, David ; Ma, Chensheng ; Matousek, Pavel ; Parker, Anthony W. ; Phillips, David ; Toner, William T. ; Towrie, Michael. / Direct observation of a hydrogen-bonded charge-transfer state of 4-dimethylaminobenzonitrile in methanol by time-resolved IR spectroscopy. In: Angewandte Chemie - International Edition. 2003 ; Vol. 42, No. 16. pp. 1826-1830.
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