Journal of Physical Chemistry, Vol.99, No.13, 4360-4363, 1995
2-Dimensional Imaging of the Photolysis of Oriented Molecules
The angular distribution of fragments produced from the photolysis of oriented methyl iodide molecules, prepared in a single JKM) state by hexapole selection, is state selectively detected by two-dimensional ion imaging. For the simple, direct, photolysis of methyl iodide at 266 nm, the angular distribution reflects the shape of the prepared oriented symmetric top wave function. Analysis of the CD3 rotational product state distribution from photolysis of CD3I (JK = 11) indicates a propensity for conservation of the initial K quantum number and a minor excitation of rotational angular momentum around the figure axis resulting from the excited state dynamics.