𝔖 Bobbio Scriptorium
✦   LIBER   ✦

13C, 13C coupling constants of isotopically perturbed molecular systems: Cyclohexane, benzene

✍ Scribed by Vitaliy A. Roznyatovsky; Nickolay M. Sergeyev; Vyacheslav A. Chertkov


Book ID
102529491
Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
306 KB
Volume
29
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

^13^C, ^13^C coupling constants in benzene and cyclohexane were measured using monodeuteriated derivatives where ^13^C, ^13^C two‐spin subsystems become slightly non‐equivalent (benzene, ^1^J = 55.88, ^2^J = 2.46, ^3^J = 10.04; cyclohexane, ^1^J = 33.10, ^2^J = 2.12, = ^3^J 2.05; all couplings in hertz within the error limits of 0.01 Hz). ^12^C/^13^C isotope effects for the ^13^C chemical shifts were found to be non‐additive.


📜 SIMILAR VOLUMES


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.

13C13C Coupling Constants of 1,3-Butadie
✍ Dipl.-Chem. Georg Becher; Prof. Dr. Wolfgang Lüttke; Dr. Gerd Schrumpf 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 English ⚖ 232 KB 👁 1 views
13C13C vicinal coupling constants of sul
✍ G. Barbarella; P. Dembech 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 306 KB

## 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.