引用本文:
裴林森, 金瑾, 高义德, 陈从香, 陈旸. CH自由基共振增强多光子电离光谱[J]. 物理化学学报,
2000, 16(04): 374-378.
doi:
10.3866/PKU.WHXB20000416
Citation: Pei Lin-Sen, Jin Jin, Gao Yi-De, Chen Cong-Xiang, Chen Yang. Resonance-enhanced Multiphoton lonization (REMPI) Spectrum of CH Radical[J]. Acta Physico-Chimica Sinica, 2000, 16(04): 374-378. doi: 10.3866/PKU.WHXB20000416
Citation: Pei Lin-Sen, Jin Jin, Gao Yi-De, Chen Cong-Xiang, Chen Yang. Resonance-enhanced Multiphoton lonization (REMPI) Spectrum of CH Radical[J]. Acta Physico-Chimica Sinica, 2000, 16(04): 374-378. doi: 10.3866/PKU.WHXB20000416
English
Resonance-enhanced Multiphoton lonization (REMPI) Spectrum of CH Radical
Abstract:
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.
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Key words:
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CH radical
- / REMPI
- / Laser photolysis
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