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Citation: Li Qiang, Mao Wen-Tao, Li Hong-Zhi, Zhu Qi-He, Kong Fan-Ao, Huang Ming-Bao. A Study of Excited States of Acetyl Radical[J]. Acta Physico-Chimica Sinica, ;1997, 13(10): 879-884. doi: 10.3866/PKU.WHXB19971004 shu

A Study of Excited States of Acetyl Radical

1.
The State Key Laboratory of Molecular Reaction Dynamics,Institute of Chemistry,Academia Sinica,Beijing 100080

Received Date: 21 January 1997
Available Online: 15 October 1997

Excited states of the acetyl radical (CH3CO) have been studied by means of theoretical and experimental methods. The four low-lying excited states (A 12A″, B 22A′, C 3'A′, and D 22A″) and their vertical excitation energies have been calculated at the MP2 and MRSDCI levels. Thermal decomposition of the ground state of CH3CO and photodissociation of the first and second states (A 12A″ and B 2'A′) have been investigated by Time-Resolved Fourier Transform Infrared Emission Spectroscopy. Vibrational products CO(ν) have been observed. The first electronically excited state (A 12A″) of CH3CO is a bound state, and the second electronically excited state (B 22A′) of CH3CO is a predissociation state.
- Acetyl radical(CH₃CO),
- Electronically excited state,
- Photoysis,
- IR emission spectrum
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