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Determination of 31 P, 31 P coupling constants in cyclotriphosphazenes and their influence on 1 H and 13 C NMR spectra of phosphorus substituents
Author(s) -
Vicente Virginie,
Fruchier Alain,
Cristau HenriJean
Publication year - 2003
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.1155
Subject(s) - chemistry , coupling constant , substituent , phosphorus , nmr spectra database , ring (chemistry) , spectral line , phosphorus 31 nmr spectroscopy , crystallography , coupling (piping) , atom (system on chip) , order (exchange) , stereochemistry , nuclear magnetic resonance spectroscopy , computational chemistry , organic chemistry , physics , mechanical engineering , particle physics , astronomy , computer science , engineering , embedded system , finance , economics
1 H and 13 C NMR spectra of symmetrically substituted cyclotriphosphazenes exhibit second‐order effects. The influence of the 31 P, 31 P coupling constants between ring phosphorus atoms on these effects was studied. Some values of this coupling constant between phosphorus bearing identical substituents were measured using 13 C satellites of the 31 P signals or by introduction of a chiral substituent on the third phosphorus atom. Copyright © 2003 John Wiley & Sons, Ltd.