𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The NMR spectrum and total geometry of selenophene determined in the liquid crystal medium ZLI 1167

✍ Scribed by William Bechtold; G. Brock Magruder; J. H. Goldstein


Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
299 KB
Volume
19
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

The calculated ^12^C, ^13^C and ^77^Se spectra of selenophene have been reproduced from the observed proton NMR spectrum in the orienting medium Merck ZLI 1167, and the entire ring structure computed. The effects on structure of vibration, solvent dependence of couplings and temperature have been explored. Most notable was the observation of a substantial increase in the Seο£ΏC bond length, comparable to that previously reported for selenophene in Merck Phase IV.


πŸ“œ SIMILAR VOLUMES


The molecular structure and unusual orie
✍ P. Diehl; P. M. Henrichs πŸ“‚ Article πŸ“… 1971 πŸ› John Wiley and Sons 🌐 English βš– 288 KB

The NMR spectrum of phenol, dissolved in a nematic solvent, is explainable in terms of two averaging planar structures for each of which the principle axis of orientation in the ring is on the opposite side of the oxygen atom from the hydroxyl proton. External hydrogen bonding to the solvent seems t

Determination of the regio- and enantios
✍ Timour Chevtchouk; Jean Ollivier; Jacques SalaΓΌn; Denis Merlet; Jacques Courtieu πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 271 KB

The regio-and enantiomeric excess analyses of (S)-half esters resulting from enzymatic (iipase, esterase) hydrolyses of chiral dimethyl succinates, were accurately determined from H,C COLOC experiments and 2H NMR in liquid crystal (PBLG, CH2C12). (~) 1997 Elsevier Science Ltd