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End-group effect of styrene oligomers on the carbon-13 NMR chemical shift

โœ Scribed by Sato, Hisaya; Tanaka, Yasuyuki


Book ID
125854648
Publisher
American Chemical Society
Year
1984
Tongue
English
Weight
388 KB
Volume
17
Category
Article
ISSN
0024-9297

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## Abstract The ^13^C NMR spectra of 40 vicinally substituted 2โ€ and 3โ€nitropyridines were recorded. The observed chemical shifts are, in general, nonโ€additive. These results are discussed in terms of the effects of 2โ€, 3โ€ and 4โ€substitutents on the ring carbons and of the position of the fixed nit