O-17 AND C-13 NMR-STUDIES OF DIARYLKETENES

Authors
CERIONI G PLUMITALLO A FREY J RAPPOPORT Z
Citation
G. Cerioni et al., O-17 AND C-13 NMR-STUDIES OF DIARYLKETENES, Magnetic resonance in chemistry, 33(8), 1995, pp. 669-673
Citations number
49
Categorie Soggetti
Spectroscopy,Chemistry
Journal title
Magnetic resonance in chemistry → ACNP
ISSN journal
07491581
Volume
33
Issue
8
Year of publication
1995
Pages
669 - 673
Database
ISI
SICI code
0749-1581(1995)33:8<669:OACNOD>2.0.ZU;2-A
Abstract
Natural abundance O-17 and C-13 NMR spectra for eleven diarylketenes a re reported. O-17 shifts show invariance with para substitution and a shielding due to ortho substitution. A buttressing effect is observed for bis(2,3,4,5,6-pentamethylphenyl)ketene. A comparison between keten es and isocyanates is made. The importance of cylindrical symmetry for half-height linewidths is discussed.