title: A laser induced fluorescence study relating to physical properties of the iodine monoxide radical.
abstract: The dispersed fluorescence spectra originating from the v' = 2 and v' = 0 levels of the A(2)Pi(3/2) state of iodine monoxide (IO) have been recorded for the first time after laser induced fluorescence (LIF) excitation in the A(2)Pi(3/2)<-- X(2)Pi(3/2) electronic transition. The results are used to obtain relative Franck-Condon factors for various v'-->v'' transitions in the A(2)Pi(3/2)--> X(2)Pi(3/2) system up to v'' = 12 and compared with theoretical predictions. A fluorescence quenching study of the A(2)Pi(3/2) state of IO has also been performed, revealing that collisional quenching and rotational energy transfer (RET) are rapid in the A(2)Pi(3/2) state of IO. The J'-dependence to fluorescence quenching of the A(2)Pi(3/2) (v' = 2) state of IO by N(2) suggests a collisional predissociation mechanism.
authors.affiliation: School of Chemistry, University of Leeds, Leeds, UKLS2 9JT.
authors.forename: T J
authors.initials: TJ
authors.lastname: Gravestock
authors.forename: M A
authors.initials: MA
authors.lastname: Blitz
authors.forename: D E
authors.initials: DE
authors.lastname: Heard