𝔖 Bobbio Scriptorium
✦   LIBER   ✦

13C13C vicinal coupling constants of sulphonium cations

✍ Scribed by G. Barbarella; P. Dembech


Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
306 KB
Volume
16
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

The ^13^C^13^C vicinal coupling constants of cyclic sulphonium cations, with the labelled carbon bound to the positively charged sulphur atom, cannotbe related to the dihedral angle ϕ by a Karplus type correlation.


📜 SIMILAR VOLUMES


Vicinal 13C13C coupling constants in bic
✍ Aleksej Y U. Denisov; Aleksej V. Tkachev; Viktor I. Mamatyuk 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 377 KB

## Abstract Carbon–carbon coupling constants in monoterpene hydrocarbons (3‐carene, α‐pinene and camphene) were investigated. A selective version of the INADEQUATE experiment was used for measurements of the long‐range __^n^J__(CC) values. The dependence of the vicinal ^13^C^13^C coupling constant

Substituent Conformational effects in vi
✍ James L. Marshall; Larry G. Faehl; Richard Kattner; Poul Erik Hansen 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 424 KB

## Abstract A series of 7‐^13^C‐labeled __o__‐substituted toluene derivatives and carboxyl‐^13^C‐isocrotonic and crotonic acid were synthesized and studied by ^13^C NMR spectroscopy to obtain ^13^C^13^C spin‐spin coupling constants involving the labeled carbon. The __cis__ ^3^__J__(CC) values were

13C,13C coupling constants of conjugated
✍ Michael Stöcker; Martin Klessinger; Konrad Wilhelm 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 198 KB

## Abstract One bond ^13^C,^13^C‐ and ^13^C,^1^H‐coupling constants have been measured for some 1,2‐dimethylene‐cycloalkanes, as well as for 2,3‐dimethylbuta‐1,3‐diene and methylenecyclobutane. The results for 2,3‐dimethylbuta‐1,3‐diene confirm the findings for buta‐1,3‐diene, i.e. that __J__(C‐1,

13C13C coupling constants of cyclobutane
✍ Michael Stöcker; Martin Klessinger 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 198 KB

## Abstract Five ^13^C‐labelled cyclobutane derivatives were synthesized and the couplings involving the labelled carbon were determined.

Vicinal 13C13C spin–spin coupling consta
✍ James L. Marshall; Shareen A. Conn; Michael Barfield 📂 Article 📅 1977 🏛 John Wiley and Sons 🌐 English ⚖ 376 KB

## Abstract A series of (>90% isotopic purity) ^13^C‐labeled aliphatic alcohols of the general structure CCC^13^COH were synthesized and studied by ^13^C n.m.r. to obtain all ^13^C^13^C couplings involving the labeled carbon. The ^2^__J__(CC) values were small (<0.5 Hz) and contrast with the l