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1 H and 13 C NMR spectra of cyclic trimers, tetramers and pentamers derived from p ‐substituted phenylacetylenes
Author(s) -
Rao V. V. Ramana,
Griesbaum K.
Publication year - 1983
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/omr.1270211008
Subject(s) - chemistry , spectral line , nmr spectra database , proton , carbon atom , stereochemistry , medicinal chemistry , nuclear magnetic resonance spectroscopy , crystallography , organic chemistry , ring (chemistry) , physics , quantum mechanics , astronomy
The 1 H and 13 C spectra of p ‐substituted 1,3,5‐triarylbenzenes, 7‐ and p ‐substituted 1,3,9‐triaryl‐9‐methyl‐fluorenes and 2‐, 10‐ and p ‐substituted 6,12,13a‐triaryl‐12‐methylbenzo(6,7)cycloheptadieno[1,2,3‐ jk ]fluorenes have been examined. p ‐Substituents were methoxy, methyl and fluorine groups. The 1 H spectra were recorded at 300 MHz and permitted assignments for the aromatic protons by selective proton decouplings. Partial assignment of the carbon atoms in the 13 C spectra was also possible.