TY - JOUR
T1 - Oxygen‐17 and carbon‐13 NMR studies of diarylketenes
AU - Cerioni, Giovanni
AU - Plumitallo, Antonio
AU - Frey, Joseph
AU - Rappoport, Zvi
PY - 1995/8
Y1 - 1995/8
N2 - Natural abundance 17O and 13C NMR spectra for eleven diarylketenes are reported. 17O 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 ketenes and isocyanates is made. The importance of cylindrical symmetry for half‐height linewidths is discussed.
AB - Natural abundance 17O and 13C NMR spectra for eleven diarylketenes are reported. 17O 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 ketenes and isocyanates is made. The importance of cylindrical symmetry for half‐height linewidths is discussed.
KW - NMR
KW - buttressing effect
KW - cylindrical symmetry
KW - diarylketenes
KW - natural abundance O NMR
UR - http://www.scopus.com/inward/record.url?scp=84994933616&partnerID=8YFLogxK
U2 - 10.1002/mrc.1260330809
DO - 10.1002/mrc.1260330809
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AN - SCOPUS:84994933616
SN - 0749-1581
VL - 33
SP - 669
EP - 673
JO - Magnetic Resonance in Chemistry
JF - Magnetic Resonance in Chemistry
IS - 8
ER -