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The Relative Sign of J C 13 -C 13

✍ Scribed by Grant, David M.

Book ID
126028856
Publisher
American Chemical Society
Year
1967
Tongue
English
Weight
295 KB
Volume
89
Category
Article
ISSN
0002-7863

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πŸ“œ SIMILAR VOLUMES

Relative signs of 29Si13C couplings
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Determination of relative signs of 13C13
Determination of relative signs of 13C13C coupling constants in doubly labelled compounds
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## 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^Cο£Ώ^13^C coupling constants possible in a very simple way. The involved carbon form AA'X or AA'B spin systems.

13C13C coupling constants in derivatives
13C13C coupling constants in derivatives of trans-stilbene and tetraphenylethylene. Determination of relative signs II
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## Abstract Magnitudes and signs of ^13^Cο£Ώ^13^C coupling constants in compounds of the type Ph^13^CR^1^R^2^ο£Ώ^13^CR^1^R^2^Ph have been determined and the results are discussed in a broader context. Two types of coupling constants, __J__(C‐i, C‐α) and __J__(C‐i, C‐β), between aromatic carbon atoms an