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Carbon–carbon coupling constants of 1‐phenylazo‐2‐naphthol and 2‐phenylazo‐1‐naphthol obtained by the SEMINA‐1 technique
Author(s) -
Hansen Poul Erik,
Lyčka Antonín
Publication year - 1986
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260240908
Subject(s) - chemistry , coupling constant , tautomer , carbon fibers , 1 naphthol , substituent , reinforced carbon–carbon , computational chemistry , spectral line , analytical chemistry (journal) , stereochemistry , organic chemistry , physics , materials science , composite number , composite material , particle physics , astronomy
Carbon‐carbon coupling constants of 1‐phenylazo‐2‐naphthol and 2‐phenylazo‐1‐naphthol have been measured with the SEMINA‐1 pulse sequence. The carbon–carbon couplings provide an unambiguous assignment of the 13 C spectra. The magnitudes of the carbon–carbon coupling constants are discussed in relation to the tautomeric nature of the compound. Substituent effects on couplings are also considered.