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13 C and 17 O NMR spectra of ketenes: A new and unusual type of heavy‐atom effect
Author(s) -
Duddeck H.,
Praas H.W.
Publication year - 1993
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.1260310205
Subject(s) - chemistry , substituent , chemical shift , atom (system on chip) , nmr spectra database , spectral line , medicinal chemistry , stereochemistry , physics , astronomy , computer science , embedded system
Abstract The 13 C and 17 O chemical shifts of a number of ketenes are reported and discussed in terms of electronic and mesomeric substituent influences. New deshielding α‐ and shielding γ‐heavy‐atom effects are reported. The corresponding data for carboxylic acid bromides and chlorides are given.