𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Solvent effect in NMR spectroscopy: Methoxyl resonance shifts induced by trifluoroacetic acid in isoflavones

✍ Scribed by Hirday N. Jha; Sudershan K. Sanduja; Radhika Sanduja; Virinder S. Parmar


Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
122 KB
Volume
38
Category
Article
ISSN
1386-1425

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


Solvent-induced shifts in NMR spectrosco
✍ Hirday N. Jha; Virinder S. Parmar πŸ“‚ Article πŸ“… 1983 πŸ› Elsevier Science 🌐 English βš– 233 KB

We have observed that the benzene-induced solvent shifts ofcertain methoxyl groups in the NMR spectra of isoflavones are appreciably changed by the addition of a small amount of trifluoroacetic acid to the solution of the isoflavones in a 1: 1 mixture of chloroform and benzene. The methoxyl group at

Solvent effects in nuclear magnetic reso
✍ D.J. Barraclough; P.W. Hickmott; O. Meth-Cohn πŸ“‚ Article πŸ“… 1967 πŸ› Elsevier Science 🌐 French βš– 185 KB

Wnivereity of Salford, galford, Lance.) (Received in UK 27 July 1967) It is now ~011 known1 that benzene ooueee coneiderable Bolvent shifte of pi-&m reacnauoea (A-TC6D6 -fCCla) with respect to IYI 'inert' solvent in WWD spectra. The origin of suoh solvent shifts ie believed to lie in the ability of

Steric effects induced by solvent associ
✍ A. Kasal; J. Schraml; J. ČermΓ‘k πŸ“‚ Article πŸ“… 1994 πŸ› John Wiley and Sons 🌐 English βš– 526 KB

## Abstract Chemical shifts of silicon‐29 in 39 trimethylsiloxy derivatives of 5α‐ and 5β‐androstanes reported here satisfy an empirical linear correlation with terms describing molecular geometry. The steric ^29^Si chemical shifts are controlled by association of the silyl ethers with the hydrogen