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13C, 1H spin coupling constants of dimethylacetylene

✍ Scribed by Kikuko Hayamizu; Osamu Yamamoto

Publisher
John Wiley and Sons
Year
1980
Tongue
English
Weight
171 KB
Volume
13
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

^13^C, ^1^H spin coupling constants of dimethylacetylene have been determined by the complete analysis of the proton coupled ^13^C NMR spectrum. For the methyl carbon ^1^J(CH) = + 130.6~4~ Hz and ^4^J(CH) = + 1.5~8~ Hz, and for the acetylenic carbon ^2^J(CH) = − 10.34 Hz and ^3^J(CH) = +4.30 Hz. The ^5^J(HH) long‐range coupling constant (+2.79 Hz) between the methyl protons was also determined.

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