Zur Energiedelle von Diradikalen, VI. Das Energieprofil der NO2-Addition an konjugierte Doppelbindungen: Eine Reaktion mit negativer Aktivierungsenergie
✍ Scribed by Roth, Wolfgang R. ;Bastigkeit, Thorsten ;Börner, Sabine
- Book ID
- 102368265
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 483 KB
- Volume
- 1996
- Category
- Article
- ISSN
- 0947-3440
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✦ Synopsis
On the Energy Well of Diradicals, VIPart V: Ref. [1]
.
– The Energy Profile for the NO~2~‐Addition to Conjugated Double Bonds: A Reaction with Negative Activation Energy
From the NO and temperature dependence of the reaction rates of 1,3‐butadiene, styrene, and methylenebenzocyclobutene with NO~2~ in the presence of NO, the energy profiles for the formation of the primary adducts are derived, which explain the inverse temperature dependence for the disappearance of the substrate at low NO concentrations and allow to calculate the bond strength of the C–NO~2~ bond (57.9 ± 1.3 kcal · mol^−1^).