Spectroscopic characterization of open-shell cations: emission and laser excitation spectra of rotationally cooled CH3−C≡C−2X+, X=Cl,Br
作者： Dieter Klapstein , Robert Kuhn , John P. Maier , Liubomir Misev , Martin Ochsner
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摘要: Gas phase emission and laser excitation spectra of the A2EX2E (Σ = +½, −½) transition rotationally/vibrationally cooled 1-chloro- 1-bromo-1,3-pentadiyne cations have been obtained. The was excited by electron impact on a seeded helium supersonic free jet fluorescence produced Penning ionization collisional relaxation. From these two sets data origin bands spin-orbit systems are located for bromo species this leads to better values splitttings in electronic states first adiabatic energy. vibrational frequencies many fundamentals X2E A2E obtained within ±2 cm−1.
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