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Picosecond kinetics of the excited state of 4-(N,N-dimethylamino)triphenylphosphine at high pressures

✍ Scribed by Kimihiko Hara; Noritsugu Kometani; Okitsugu Kajimoto

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 372 KB
Volume: 225
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(94)87098-5

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✦ Synopsis

The picosecond fluorescence lifetime of 4-(N,Ndimethylamino)triphenylphosphine in propanol s&vent was measured at high pressures up to 400 MPa by the method of time-correlated single-photon counting. The fluorescence response curves were well fitted to triple exponential functions monitored at both wavelengths of local excited and intramolecular charge-transfer bands. The initial lifetime is faster than the longitudinal relaxation time of the solvent and increases with pressure.

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