Time-Resolved IR Study of the Photobehavior of W(CO)5(4-Acpy) (4-Acpy = 4-Acetylpyridine)

Frank P.A. Johnson, Michael W. George, James J. Turner

Research output: Journal PublicationArticlepeer-review

19 Citations (Scopus)


Fast time-resolved infrared spectroscopy (TRIR) is used to probe the photochemistry of W(CO)5(4-acetylpyridine) in n-heptane. Visible irradiation (510 nm) populates the lowest MLCT state, which is monitored by TRIR. Subsequent dissociation to W(CO)5⋯n-heptane, via equilibrium with the 3LF state, is also followed. On UV irradiation (308 nm), the LF state is populated directly and W(CO)5⋯n-heptane appears immediately. With 510-nm irradiation, the yield of W(CO)5⋯n-heptane as a function of temperature is measured to give a value for the energy gap between the lowest MLCT state and the 3LF state, −4000 cm−1.

Original languageEnglish
Pages (from-to)4226-4229
Number of pages4
JournalInorganic Chemistry
Issue number20
Publication statusPublished - 1993
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry


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