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13 C 13 C coupling constants and substituent effects on 13 C chemical shifts in 13 C labelled pyrene and pyrene derivatives
Author(s) -
Hansen P. E.,
Poulsen O. K.,
Berg A.
Publication year - 1975
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270070105
Subject(s) - substituent , coupling constant , chemistry , chemical shift , ring (chemistry) , pyrene , carbon 13 , crystallography , computational chemistry , stereochemistry , physics , organic chemistry , nuclear physics , particle physics
Long range inter‐ring 13 C 13 C couplings are found to be effective in the title compounds, and the magnitudes of coupling constants and of substituent effects on 13 C chemical shifts, as well as the signs of the latter, alternate with respect to the number of connecting bonds.
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