Spin-orbit Splitting and Lifetime Broadening in the A2Δ Electronic State of l-C5H
- Received Date: 2011-07-22
Abstract: Optical absorption bands at ～18772 and ～18807 cm-1, previously assigned to A2Δ-X2Π electronic origin band transitions of the linear carbon-chain radicals C5H and C5D, respec-tively, have been reinvestigated. The spectra have been recorded in direct absorption apply-ing cavity ring-down spectroscopy to a supersonically expanding acetylene/helium plasma. The improved spectra allow deducing a l-C5H upper state spin-orbit coupling constant A'=-0.7(3) cm-1 and a A2Δ lifetime of 1.6±0.3 ps.
|Citation:||Mohammad Ali Haddad, Dong-feng Zhao, Harold Linnartz, Wim Ubachs. Spin-orbit Splitting and Lifetime Broadening in the A2Δ Electronic State of l-C5H[J]. Chinese Journal of Chemical Physics , 2012, 25(2): 129-134. doi: 10.1088/1674-0068/25/02/129-134|