摘要
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.
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.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
2000年第4期374-378,共5页
Acta Physico-Chimica Sinica
基金
国家自然科学基金
中国科学院院长基金
中国科学院重大项目
教育部留学回国工作基金
"211"工程支持项目
