吡啶气相分子的共振多光子电离谱

Resonant Multiphoton lonization Spectrum of Pyridine in Gas Phase

本工作观测了双光子能量在35180～36002cm^(-1)范围内吡啶分子的共振多光子电离谱.对电子跃迁S_1(~1B_1)←S_0(~1A_1)的振动带做了归属,首次在~1B_1态观察到7个新的振动模.讨论了N原子取代对分子结构及振动模的影响.

Resonant multiphoton ionization spectra of pyridine vapor in the two-photon energy region of 35180-36002cm-1 has been observed. The vibrational bands observed in the S,(1B1)←S0( 1A1) transition are assigned. Seven new vibrational bands are observed in 1B1 state for the first time. The effects of N substitution on the molecular structure and the vibrational modes are also discussed.