The Cotton effects around 235, 265 and 285 nm in the CD spectra of twenty hydrolysable tannins and related compounds were emplncally correlated with the stereostructures of ellagl-
Circular dichroism of hydrolysable tannins-II dehydroellagitannins
✍ Scribed by Takuo Okuda; Takashi Yoshida; Tsutomo Hatano; Toshitaka Koga†; Namiko Toh†; Kaoru Kuriyama††
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- French
- Weight
- 235 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
The CD spectra of dehydroellagitannlns and related compounds have emplrlcally shown that the absolute configuration at C-l' of the dehydrohexahydroxydlphenoyl group can be determined by the Cotton effect around 200 nm.
📜 SIMILAR VOLUMES
## Synopsis Vibrational CD (VCD) of amide I and I1 vibrations of several a-helical polypeptides have been measured in solution. For the amide I1 as well as the amide I [previously published: Lal, B.B. & Nafie, L.A. (1982) Biopolymers 21, 21611 we find the VCD to be characteristic of the polypeptid
## Abstract Recent experiments have shown that the circular dichroism of poly‐L‐proline II is negative from 130 to 220 nm. Therefore, calculations based on exciton interactions alone cannot give the observed spectrum. The present calculations were carried out in the framework of the random‐phase a
## Abstract Optical properties in different solvents of gramicidin‐bis (salicylaldimine) Cu(II) and (5‐I‐salicyladimine) Cu(II) chelates are intercepted in terms of their molecular structure. A molecular model for the inversion of Contton effects in two different classes of solvents is proposed. Th