Early photochemical dynamics of organometallic compounds studied by ultrafast time-resolved spectroscopic techniques

Antonín Vlček; Ian R. Farrell; Davina J. Liard; Pavel Matousek; Michael Towrie; Anthony W. Parker; David C. Grills; Michael W. George

doi:10.1039/b106249m

Early photochemical dynamics of organometallic compounds studied by ultrafast time-resolved spectroscopic techniques

Antonín Vlček, Ian R. Farrell, Davina J. Liard, Pavel Matousek, Michael Towrie, Anthony W. Parker, David C. Grills, Michael W. George

Research output: Journal Publication › Article › peer-review

54 Citations (Scopus)

Abstract

Time-resolved spectroscopic techniques operating on a femtosecond-picosecond time scale are used to investigate mechanisms and dynamics of the earliest stages of photochemical reactions of organometallic compounds, as well as the composition and structure of the excited states and photointermediates involved. A deep insight into the following ultrafast photochemical reactions: (i) Cr-CO bond dissociation in [Cr(CO)₄(bpy)], (ii) dissociative isomerisation of [Mn(Br)(CO)₃(α diimine)] and (iii) interligand electron transfer in [Re(MQ⁺ (CO)₃(dmb)]²⁺ has been obtained by combining time-resolved visible and IR absorption, resonance Raman and fluorescence spectroscopic techniques. In each case, it is demonstrated what kind of information individual approaches provide and how the photochemical mechanism can be deduced. The operating principles of these ultrafast spectroscopic techniques are briefly explained, together with descriptions of the experimental setups used for the above mentioned studies.

Original language	English
Pages (from-to)	701-712
Number of pages	12
Journal	Journal of the Chemical Society. Dalton Transactions
Issue number	5
DOIs	https://doi.org/10.1039/b106249m
Publication status	Published - 2002
Externally published	Yes

ASJC Scopus subject areas

Chemistry (all)

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10.1039/b106249m

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title = "Early photochemical dynamics of organometallic compounds studied by ultrafast time-resolved spectroscopic techniques",

abstract = "Time-resolved spectroscopic techniques operating on a femtosecond-picosecond time scale are used to investigate mechanisms and dynamics of the earliest stages of photochemical reactions of organometallic compounds, as well as the composition and structure of the excited states and photointermediates involved. A deep insight into the following ultrafast photochemical reactions: (i) Cr-CO bond dissociation in [Cr(CO)4(bpy)], (ii) dissociative isomerisation of [Mn(Br)(CO)3(α diimine)] and (iii) interligand electron transfer in [Re(MQ+ (CO)3(dmb)]2+ has been obtained by combining time-resolved visible and IR absorption, resonance Raman and fluorescence spectroscopic techniques. In each case, it is demonstrated what kind of information individual approaches provide and how the photochemical mechanism can be deduced. The operating principles of these ultrafast spectroscopic techniques are briefly explained, together with descriptions of the experimental setups used for the above mentioned studies.",

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AU - Vlček, Antonín

AU - Farrell, Ian R.

AU - Liard, Davina J.

AU - Matousek, Pavel

AU - Towrie, Michael

AU - Parker, Anthony W.

AU - Grills, David C.

AU - George, Michael W.

PY - 2002

Y1 - 2002

N2 - Time-resolved spectroscopic techniques operating on a femtosecond-picosecond time scale are used to investigate mechanisms and dynamics of the earliest stages of photochemical reactions of organometallic compounds, as well as the composition and structure of the excited states and photointermediates involved. A deep insight into the following ultrafast photochemical reactions: (i) Cr-CO bond dissociation in [Cr(CO)4(bpy)], (ii) dissociative isomerisation of [Mn(Br)(CO)3(α diimine)] and (iii) interligand electron transfer in [Re(MQ+ (CO)3(dmb)]2+ has been obtained by combining time-resolved visible and IR absorption, resonance Raman and fluorescence spectroscopic techniques. In each case, it is demonstrated what kind of information individual approaches provide and how the photochemical mechanism can be deduced. The operating principles of these ultrafast spectroscopic techniques are briefly explained, together with descriptions of the experimental setups used for the above mentioned studies.

AB - Time-resolved spectroscopic techniques operating on a femtosecond-picosecond time scale are used to investigate mechanisms and dynamics of the earliest stages of photochemical reactions of organometallic compounds, as well as the composition and structure of the excited states and photointermediates involved. A deep insight into the following ultrafast photochemical reactions: (i) Cr-CO bond dissociation in [Cr(CO)4(bpy)], (ii) dissociative isomerisation of [Mn(Br)(CO)3(α diimine)] and (iii) interligand electron transfer in [Re(MQ+ (CO)3(dmb)]2+ has been obtained by combining time-resolved visible and IR absorption, resonance Raman and fluorescence spectroscopic techniques. In each case, it is demonstrated what kind of information individual approaches provide and how the photochemical mechanism can be deduced. The operating principles of these ultrafast spectroscopic techniques are briefly explained, together with descriptions of the experimental setups used for the above mentioned studies.

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Early photochemical dynamics of organometallic compounds studied by ultrafast time-resolved spectroscopic techniques

Abstract

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