14102-48-8Relevant academic research and scientific papers
Chemiluminescent chemi-ionization: Ar* + Ca and the CaAr+ emission spectrum
Hartman, Dennis C.,Winn, John S.
, p. 4320 - 4325 (1981)
A flowing afterglow chemiluminescence apparatus has been used to analyze visible fluorescence in the Ar*(3P20) + Ca(1S0) reaction.The rate constants for production of Ca+(2P3/20) and Ca+(2P1/20) were measured to be 1.6 * 10-10 and 3.2 * 10-11 cm3 molecule-1 sec-1, respectively.These results demonstrate a transfer of the total electronic angular momentum polarization in Ar* to the excited ion levels.The molecular band spectrum of the associative ionization product CaAr+(A 2Π) was observed.Molecular fluorescence constituted14percent of the total fluorescence from all ion products.This spectrum was analyzed with a model (exp-Z4) potential, yielding, for the ground state X 2Σ+, Re = 2.8 Angstroem, ωe'' = 87 cm-1, and De'' = 1000 cm-1, and, for the A 2Π state, Re = 2.6 Angstroem, ωe' = 200 cm-1, and De' = 4900 cm-1.The nascent internal state distribution in CaAr+ is found to consist of a fairly narrow range of high vibrational levels.
