✦ LIBER ✦

Determination of proton-proton coupling constants in 13C-labeled molecules

✍ Scribed by C Griesinger; U Eggenberger

Publisher: Elsevier Science
Year: 1992
Weight: 561 KB
Volume: 97
Category: Article
ISSN: 0022-2364
DOI: 10.1016/0022-2364(92)90328-5

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Carbon-proton coupling constants in α-ch

Carbon-proton coupling constants in α-chlorostyrene-α-13C

✍ Kenneth L. Servis; Joseph Casanova Jr.; Manfred Geisel 📂 Article 📅 1969 🏛 John Wiley and Sons 🌐 English ⚖ 198 KB

The two stereochemically distinct two-bond carbon-13-hydrogen coupling constants J(13C-CH), for cr-chloro~tyrene-a-'~C have been shown to be of similar magnitude but opposite sign (-6.3 and 1 5 . 6 Hz). A simple additivity relationship which adequately reproduces all the reported J(13C-CH) values fo

Sign determination of carbon-proton and

Sign determination of carbon-proton and proton-proton coupling constants in thiete-1,1-dioxide

✍ G Fronza; A Gamba; R Mondelli; G Pagani 📂 Article 📅 1973 🏛 Elsevier Science ⚖ 695 KB

Sign determination of 13C13C coupling c

Sign determination of 13C13C coupling constants by sign-labeled polarization transfer

✍ O.W Sørensen; R.R Ernst 📂 Article 📅 1983 🏛 Elsevier Science ⚖ 720 KB

Solvent dependence of proton-proton coup

Solvent dependence of proton-proton coupling constants in styrene oxide

✍ Stanford L. Smith; Richard H. Cox 📂 Article 📅 1965 🏛 Elsevier Science 🌐 English ⚖ 211 KB

Proton Detection of Carbon–Carbon Spin C

Proton Detection of Carbon–Carbon Spin Coupling Constants in Symmetrical Molecules

✍ Stefan Berger 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 49 KB

A new method is shown to determine C,C spin coupling constants in C 2 symmetric molecules by using proton detection with gradient selected 2QHMBC. It is shown that the pulse sequence proposed distinguishes between symmetric and antisymmetric eigenfunctions of the AAXX spin system.

Determination of relative signs of 13C13

Determination of relative signs of 13C13C coupling constants in doubly labelled compounds

✍ P. E. Hansen; O. K. Poulsen; A. Berg 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 187 KB

## Abstract Analysis of the noise decoupled ^13^C spectra of doubly ^13^C labelled compounds where the two labelled carbons are identical, makes the determination of reltive signs of ^13^C^13^C coupling constants possible in a very simple way. The involved carbon form AA'X or AA'B spin systems.