Substituent effects on hyperconjugation: Evaluation of hyperconjugation energy for groups of the type ·CH2X
✍ Scribed by John W. Baker
- Publisher
- Elsevier Science
- Year
- 1959
- Tongue
- French
- Weight
- 518 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0040-4020
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## Abstract Chemical and spectroscopic properties of the s‐__cis__‐butadiene chromophore in 2, 3‐dimethylidene‐norbornane can be modified without direct substitution of the diene moiety. Introduction of an etheral bridge for the H~2~C(7) bridge (**2**, **4**, **6**) and/or introduction of a double
Disproportionation/combination rate constant ratios, k , / k , , have been measured for the collision between CF3CH2CH2 and CF3 radicals to be 0.022 ? 0 002 and for CF3CH2CH2 and CF3CH2CH2 radicals to be 0.100 IT 0.002. Comparison to previous work from this laboratory for the reaction of CF3CH2CHCI