| Autor: |
Nakamura, Kazumoto, Koda, Seiichro, Akita, Kazuo |
| Zdroj: |
Bulletin of the Chemical Society of Japan; June 1978, Vol. 51 Issue: 6 p1665-1670, 6p |
| Abstrakt: |
The mercury photosensitized decomposition of 3-cyclopenten-1-one produced carbon monoxide and 1,3-butadiene in equal quantum yields as the exclusive products, independent on the absence or presence of nitrogen oxide. Thus the process was a molecular dissociation. The quantum yield was dependent on the pressure of argon added as a third body and revealed a maximum at the pressure of about 100 mmHg. A possible reaction scheme was proposed to explain the above kinetic behavior. It was suggested that the vibrationally excited state of 3-cyclopenten-1-one was a main precursor to decompose to carbon monoxide and 1,3-butadiene. An energy about 20 kcal·mol−1was estimated to be lost before its production from the original triplet state 3-cyclopenten-1-one according to the proposed reaction scheme. This result is compared with the behaviors of excited 3-cyclopenten-1-ones produced by different excitation procedures. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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