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35Cl/37Cl isotope effects on 13C chemical shifts. Assignment of carbon-13 NMR lines of polychlorinated hydrocarbons

✍ Scribed by W. Buchner; D. Scheutzow

Publisher
John Wiley and Sons
Year
1975
Tongue
English
Weight
168 KB
Volume
7
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

An isotope effect of about 0·1 Hz at 25 MHz (0·004 ppm) on the ^13^C chemical shifts due to directly bonded chlorine has been observed at −50°C for hexachloropropene, hexachlorobutadiene and tetrachlorobutenyne. This effect yields an unambiguous assignment of ^13^C NMR lines to specific carbon atoms in these polychlorinated hydrocarbons.

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