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Detection of end-groups and estimation of molecular weights of polyiminoalkenes by 13C n.m.r. spectroscopy

✍ Scribed by S. Guhaniyogi; K.J. Ivin; E.D. Lillie

Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
520 KB
Volume
18
Category
Article
ISSN
0032-3861

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## Abstract ^13^C chemical shifts for 23 __para__‐ and __meta__‐substituted chalcones of the types **1** and **2** have been determined. The aromatic shieldings are compared with previous results for other aromatic derivatives. Correlations of the ^13^C chemical shifts of vinyl carbons and carbonyl