Picosecond time-resolved infrared investigation into the nature of the lowest excited state of fac-[Re(Cl)(CO)3(CO2Et-dppz)] (CO2Et-dppz = dipyrido[3,2a:2′,3′c]phenazine-11- carboxylic ethyl ester)

Marina K. Kuimova, David C. Grills, Pavel Matousek, Anthony W. Parker, Xue Zhong Sun, Michael Towrie, Michael W. George

Research output: Contribution to journalConference article

21 Citations (Scopus)

Abstract

The photophysics of the fac-[Re(Cl)(CO)3(CO2Et-dppz)] (CO2Et-dppz = dipyrido[3,2a:2′,3′c]phenazine-11- carboxylic ethyl ester) was studied with picosecond time-resolved infrared (ps-TRIR) spectroscopy in metal carbonyl (2100-1800cm-1) and organic ester (1800-1600cm-1) spectral regions. The ps-TRIR spectra in both regions give evidence for the formation of a metal-to-ligand charge transfer (MLCT) excited state. The magnitude of ν(C≡O) shift in the metal carbonyl region of the excited state relative to those of the ground state allows the excited state to be described more precisely as a dπ(Re) → π* (phenazine) 3MLCT state.

Original languageEnglish
Pages (from-to)219-223
Number of pages5
JournalVibrational Spectroscopy
Volume35
Issue number1-2
DOIs
Publication statusPublished - Jun 17 2004
EventThe 2nd International Conference on Advanced Vibrational Spectroscopy - Nottingham, United Kingdom
Duration: Aug 24 2003Aug 29 2003

Keywords

  • MLCT
  • Phenazine
  • Time-resolved

ASJC Scopus subject areas

  • Spectroscopy

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