✦ LIBER ✦
Carbon-13 NMR spectra of all-trans-N-retinylidene-n-butylamine as an analogue of the Schiff's base linkage-compound in visual pigment
✍ Scribed by Yasuo Tokitô; Yoshio Inoue; Riichirô Chûjô; Yasuhiro Miyoshi
- Publisher
- John Wiley and Sons
- Year
- 1975
- Tongue
- English
- Weight
- 277 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
Carbon‐13 NMR spectra have been obtained for all‐trans‐N‐retinylidene‐n‐butylamine as an analogue of the Schiff's base linkage compound in visual pigment. The chemical shift changes on going from all‐trans‐retinal~1~ to all‐trans‐N‐retinylidene‐n‐butylamine are observed. These changes indicate the collapse of the bond alternation in conjugated polyene carbons, whereas N‐protonation in all‐trans‐N‐retinylidene‐n‐butylamine does not affect the bond alternation.