## Abstract The carboxyl substituent effects for branched carboxylic acids have been determined by carbon‐13 Fourier ransform nuclear magnetic resonance of eighteen measured and reported branched acids. For α‐branched systems the substituent effects are α = 15.3 ppm, β = 2.6 ppm, γ = −1.9 ppm, δ =
✦ LIBER ✦
ESR study of the carbon 13 hyperfine coupling tensors of the (COOH)H(OH) and COOH(OH2) radicals
✍ Scribed by L. Bonazzola; C. Hesse-Bezot; J. Roncin
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 325 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
OH anti (COOH)-k(OH)?
radicals trapped in single crystals of glycolic and mesoszlic acids are studied by EPR. 13C and hydrogen coupling hyperfine tensors are determined. It is concluded from results relative to 13C couplings that both radicals are planar.
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## Abstract The dynamics of the __H__(^2^__S__) + __FO__(^2^Π) → __OH__(^2^Π) + __F__(^2^__P__) reaction on the adiabatic potential energy surface of the 1^3^__A__′ and 1^3^__A__″ states is investigated. The initial state selected reaction probabilities for total angular momentum __J__ = 0 have bee