𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Carbon-13carbon-13 coupling constants of 13C-methyl labeled o- and p-substituted toluenes

✍ Scribed by James L. Marshall; Arthur M. Ihrig

Publisher
John Wiley and Sons
Year
1973
Tongue
English
Weight
300 KB
Volume
5
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

From ^13^C‐7 labeled toluene the following ^13^C‐methyl o‐ and p‐substituted toluenes were synthesized: o‐NO~2~, ‐NH~2~, ‐I and CN; p‐NO~2~ and ‐NH~2~. Each of these labeled compounds was studied by carbon magnetic resonance to determine all carbon‐13carbon‐13 splittings involving the methyl carbon.

📜 SIMILAR VOLUMES

Characterization of coupling constants t
Characterization of coupling constants to nitrogen. Carbon-13 chemical shifts and carbon–nitrogen coupling constants of substituted benzaldoximes
✍ Ann Danoff; Marcia Franzen-Sieveking; Robert L. Lichter; Samuel N. Y. Fanso-Free 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 409 KB

## Abstract Carbon‐13 chemical shifts and ^13^C−^15^N coupling constants of substituted benzaldoximes and of two non‐aromatic oximes have been determined. The coupling constants display little variation as a function of the nature or position of substitution, which suggests that perturbations in th

Assignment of carbon-13 NMR spectra and
Assignment of carbon-13 NMR spectra and sign determination of long range carbon-13—proton coupling constants with SPI
✍ A. A. Chalmers; K. G. R. Pachler; P. L. Wessels 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 English ⚖ 244 KB 👁 1 views

## Abstract The application of selective population inversion (SPI) to the assignment of ^13^C resonances and to the determination of the relative sign of ^13^C^1^H coupling constants is demonstrated for 1‐phenyl‐1,2‐dibromo‐2‐nitroethane. A negative sign for the geminal C‐2H‐1 coupling constant

Carbon-13 nuclear magnetic resonance che
Carbon-13 nuclear magnetic resonance chemical shifts and 13C-199Hg coupling constants for symmetrical dialkylmercurials
✍ J. Casanova; H. R. Rogers; K. L. Servis 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 208 KB

## Abstract The carbon‐13 chemical shifts and coupling constants (__J__[^13^C^199^Hg]) have been determined for a series of eleven symmetrically substituted organomercurials. Empirical substituent parameters can be calculated which correlate observed and predicted chemical shifts for dialkylmercur

Determination of 3J(31P31P) and 13C31P c
Determination of 3J(31P31P) and 13C31P coupling constants in 1,6-diphosphatriptycene from carbon-13 n.m.r. lone pairs effects on 13C31P couplings
✍ S. Sørensen; H. J. Jakobsen 📂 Article 📅 1977 🏛 John Wiley and Sons 🌐 English ⚖ 342 KB

## Abstract The ^31^P^31^P and ^13^C^31^P coupling constants in 1,6‐diphosphatriptycene have been obtained from analysis of its proton decoupled ^13^C n.m.r. spectra. More accurate data, however, resulted from simultaneous analysis of the proton decoupled ^13^C spectra and ^31^P(^13^C) satellite

Carbon-13 n.m.r. study of 31P13C spin–sp
Carbon-13 n.m.r. study of 31P13C spin–spin coupling constants in dichloro- and monochloro-vinyl phosphate derivatives
✍ Gábor Szalontai 📂 Article 📅 1977 🏛 John Wiley and Sons 🌐 English ⚖ 383 KB

## Carbon -13 chemical shifts and J(PC) coupling constants of 29 vinyl phosphate derivatives are presented. In the series of compounds (RIO)zP(0)OC'(R~)=CzX, (where 3 R: indicates the first carbon of the Rz substituent) large differences were found between the 3J(P, 0, C-1, C-3) and 3J(P, 0, C-1,