The TOF-mass spectra of CS2+、CS+、 and C+ ions were obtained by the methodof REMPI. The mechanism of the production of these ions was discussed according to the mass spectra. The structures observed from the mass spe...The TOF-mass spectra of CS2+、CS+、 and C+ ions were obtained by the methodof REMPI. The mechanism of the production of these ions was discussed according to the mass spectra. The structures observed from the mass spectrum were assigned.展开更多
CH radicals were prepared by photolysis of CHBr3 molecule,and were ionized by the same laser.Monitoring CH+,C+and H+ions signals,the CH REMPI spectrum was obtained in the range of 241-251nm.The CH D2Π(v=2)A2Δ(v=0)...CH radicals were prepared by photolysis of CHBr3 molecule,and were ionized by the same laser.Monitoring CH+,C+and H+ions signals,the CH REMPI spectrum was obtained in the range of 241-251nm.The CH D2Π(v=2)A2Δ(v=0)(1+1) resonance transition was assigned.The rotational constants of CH D2Π(v=2) state were obtained by analyzing the REMPI spectrum.It was found that there is a broad feature peak at 247.6nm in C+mass-specific spectrum.Based on the theoretical result,the broad feature peak is correlated with an unreported predissociation Rydberg state (3 2Π) which converges to CH+(A,1Π) state.展开更多
文摘The TOF-mass spectra of CS2+、CS+、 and C+ ions were obtained by the methodof REMPI. The mechanism of the production of these ions was discussed according to the mass spectra. The structures observed from the mass spectrum were assigned.
文摘CH radicals were prepared by photolysis of CHBr3 molecule,and were ionized by the same laser.Monitoring CH+,C+and H+ions signals,the CH REMPI spectrum was obtained in the range of 241-251nm.The CH D2Π(v=2)A2Δ(v=0)(1+1) resonance transition was assigned.The rotational constants of CH D2Π(v=2) state were obtained by analyzing the REMPI spectrum.It was found that there is a broad feature peak at 247.6nm in C+mass-specific spectrum.Based on the theoretical result,the broad feature peak is correlated with an unreported predissociation Rydberg state (3 2Π) which converges to CH+(A,1Π) state.
