In our experiments , these complexes , produced in supersonic beam expansions , are amenable to high resolution resonant two - photons ionization spectroscopy , which make it possible to obtain detailed information on their electronic - vibrational states . through resonant ionization spectra and together with time - of - flight mass spectrometry in supersonic molecular beam , the internal rotation for ch3 and intermolecular vibration for atom ar ( or n2 ) in the complexes ( c6h5ch3 . . 實驗中采用了高分辨率的共振電離光譜技術和超聲分子束技術,通過共振電離光譜和飛行時間質譜技術的手段探明了復合物c _ 6h _ 5ch _ 3 … n _ 2 、 ar的電子態(tài)、振動態(tài)以及甲基( ch _ 3 )內轉動的詳細情況。