𝔖 Bobbio Scriptorium
✦   LIBER   ✦

FT–NMR investigation of 13C11B coupling. A reappraisal

✍ Scribed by D. E. Axelson; A. J. Oliver; C. E. Holloway


Publisher
John Wiley and Sons
Year
1974
Tongue
English
Weight
71 KB
Volume
6
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

An earlier short communication on this topic reports some incorrect ^11^B^13^C coupling parameters. The correct data are given together with some ^10^B coupling and isomer shift data.


📜 SIMILAR VOLUMES


FT-NMR investigation of 13C11B coupling
✍ D. E. Axelson; A. J. Oliver; C. E. Holloway 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 English ⚖ 98 KB

## Abstract The ^13^C FT‐NMR spectrum of sodium tetraphenylboron obtained with proton decoupling has a line‐shape which suggests the operation of a magnetic‐dipole relaxation mode. Coupling constants between ^11^B and the ring carbons are reported.

A 13C NMR investigation of [5]metacyclop
✍ L. W. Jenneskens; F. J. J. de Kanter; W. H. de Wolf; F. Bickelhaupt 📂 Article 📅 1986 🏛 John Wiley and Sons 🌐 English ⚖ 497 KB

Carbon-13 NMR data of [iilmetacyclophane (la), its 8,ll-dihalosubstituted derivatives lb-ld and of some model compounds are reported and discussed. A remarkable downfield shift is observed for the aromatic carbon between the bridging carbons; this is tentatively ascribed to long-range effects of the

1-alkynyldioxaborolanes: Determination o
✍ Bruce Victor Cheesman; Laurent Deloux; Morris Srebnik 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 449 KB

## Abstract Broad ^13^C resonances, as the result of partially relaxed scalar ^13^C^11^B coupling, were observed for the C‐1 and to a lesser extent C‐2 carbons of 1‐alkynyldioxaborolanes at 25°C. Measurement of the ^13^C spectra at 102°C resulted in a slower ^11^B quadrupolar relaxation rate and a

A Structural Investigation by 13C-NMR of
✍ Winfried Hübel; Adolf Nahrstedt; Victor Wray 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 377 KB 👁 1 views

## Abstract ^13^C‐NMR spectra of 20 cyanogenic glycosides have been measured in deuterium oxide. These compounds constitute representative examples of four groups of glycosides, namely the butyronitrile, propionitrile, mandelonitrile and cyclopentenoncyanohydrin glycosides. The well resolved signal

13C FT-NMR spectra of alkyl substituted
✍ A. Kiewiet; J. de Wit; W. D. Weringa 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 English ⚖ 459 KB

## Abstract The ^13^C FT‐NMR spectra of thirteen furans, monodi‐ or trisubstituted with methyl and/or __t__‐butyl groups, were studied in detail. Substituent effects of methyl and __t__‐butyl groups on the chemical shifts of ring carbon atoms are additive in nonsterically hindered furans. Steric sh