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Citation: Liu Dan, Fang Wei-Hai, Fu Xiao-Yuan. Crucial Role of the S₁/T₁/S₀ Intersention Point in Photochemical Reaction of Cyclobutanone[J]. Acta Physico-Chimica Sinica, ;2000, 16(11): 961-963. doi: 10.3866/PKU.WHXB20001101 shu

Crucial Role of the S₁/T₁/S₀ Intersention Point in Photochemical Reaction of Cyclobutanone

1.
Department of Chemistry,Beijing Normal University,Beijing 100875

Received Date: 26 June 2000
Available Online: 15 November 2000

The role of the intersection between two potential energy surfaces has been more generally emphasizing on than before.In the present system,the intersections between S1,T1 and S0 surfaces were optimized with the state-averaged CAS(8,7)/6-31G method.The comparison of their optimized structures demonstrates that the intersection points of S1/S0 and S1/T1 locate in the same region,referred to as S1/T1/S0 point.The existence of S1/T1/S0 point and its high possibility of radiationless transition via intersystem crossing or internal conversion,would make the system have the most efficient funnel to generate the ground-and triplet-state products,which is consistent with the experimental facts.
- Cyclobutanone,
- S₁/T₁/S₀ intersection point,
- Photochemical reaction
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Crucial Role of the S1/T1/S0 Intersention Point in Photochemical Reaction of Cyclobutanone

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通讯作者: 陈斌, bchen63@163.com

Crucial Role of the S₁/T₁/S₀ Intersention Point in Photochemical Reaction of Cyclobutanone