A laser induced fluorescence study relating to physical properties of the iodine monoxide radical

作者：Gravestock T J; Blitz M A; Heard D E^*

来源：Physical Chemistry Chemical Physics, 2010, 12(4): 823-834.

DOI：10.1039/b910571a

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. uorescence (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.

• 出版日期2010