About this Chemistry article
The determination of the COOH substiuent effect for branched carboxylic acids from carbon-13 chemical shifts by David H. Marr is a Chemistry article available to read on EtoBox.
## 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 = 0.9 ppm and ε = 0.5 ppm. For other branched acids, the determined carboxyl substituent effects are α = 19.2 ppm, β = 2.1 ppm, γ = −1.4 ppm, δ = 0.6 ppm, and ε = 0.6 ppm.
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- Author
- David H. Marr
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; John Wiley and Sons Ltd; Wiley (ISSN 0749-1581)
- Published
- 1980
- Language
- EN
- Field
- Chemistry (Physical Sciences)