Step-scan FTIR absorption difference time-resolved spectroscopy studies the excited state electronic structures and decay kinetics of d6 transition metal polypyridine complexes

Details Step-scan FTIR absorption difference time-resolved spectroscopy studies the excited state electronic structures and decay kinetics of d6 transition metal polypyridine complexes Step-scan FTIR absorption difference time-resolved spectroscopy studies the excited state electronic structures and decay kinetics of d6 transition metal polypyridine complexes

Jun 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aipc..430..708s&link_type=abstract

The eleventh international conference on fourier transform spectroscopy. AIP Conference Proceedings, Volume 430, pp. 708-714 (1

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Organic Compounds, Polymers, Solid Organic Materials

Scientific paper

Step-scan FTIR absorption difference time-resolved spectroscopy (S2 FTIR ΔA TRS) has been used to study the photo-excited states of several low-spin d6 transition metal polypyridine complexes. Insight into the distribution of electron density in the excited states is obtained by comparing the ground and excited state vibrational frequencies of various bands sensitive to electronic structure. The multiplex, registration, and IR throughput advantages of this interferometric technique are significant in comparison with other methods currently used to probe photo-excited processes on the nanosecond time scale. The S2 FTIR ΔA TR spectra were obtained by use of a step-scan modified Bruker IFS 88 FTIR spectrometer equipped with an AC/DC-coupled photovoltaic Kolmar Technologies MCT detector with a 20 ns rise time and a 100/200 MHz PAD82a transient digitizer. The complexes were excited with frequency-tripled pulses from a Q-switched Quanta-Ray DCR1A Nd:YAG laser (355 nm, 10 ns, 10 Hz, 3 mJ/pulse). Data were collected with 10 ns time resolution.

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