Hamburg 2009 – scientific programme
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MO: Fachverband Molekülphysik
MO 17: Stossprozesse, Energietransfer 2
MO 17.1: Talk
Wednesday, March 4, 2009, 16:30–16:45, VMP 6 HS-G
A new CD3 REMPI transition accidentally foud by imaging spectroscopy — •Jens Riedel1 and Kopin Liu2 — 1Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin — 2Institute of Atomic and Molecular Sciences (IAMS), Academia Sinica, Taipeh, Taiwan
In the course of a crossed beam imaging study of the reaction dynamics of Cl + CHD3(1131) → HCl + CD3, an unexpected ring-like feature was observed on the CD3 ground state (00) product image. Using the technique of ion imaging spectroscopy, the mysterious feature was tentatively ascribed to the formation of the vibrationally excited CD3(3141) product from the above combination-band excited reaction. The intriguing aspect of the present finding is that the corresponding (2+1)-REMPI band of CD3(3141) appears totally hidden by the more intense CD3(00) origin band, yet the two-dimensional nature of ion imaging technique enables us to decipher its spectral character and extract the otherwise lost dynamical information.