In:
Zeitschrift für Naturforschung B, Walter de Gruyter GmbH, Vol. 34, No. 11 ( 1979-11-1), p. 1606-1611
Kurzfassung:
A low temperature X-ray study of the enol of benzoylacetone indicates fixed positions of the C and O atoms within the enolic ring system and an extensive bond delocalisation over these atoms. The distribution of electron density between the two oxygen atoms shows that the enolic hydrogen is spread over a wide range. This is in accordance with a structural model proposed by de la Vega, whereupon the C and O atoms are kept fixed in their average positions during a tunneling process of the hydrogen between the two oxygen atoms. With this conception, the chemical shifts in the 17 O and 13 C NMR spectra, the 13 C 13 C spin coupling constants and the temperature independance of these values can be explained.
Materialart:
Online-Ressource
ISSN:
1865-7117
,
0932-0776
DOI:
10.1515/znb-1979-1124
Sprache:
Englisch
Verlag:
Walter de Gruyter GmbH
Publikationsdatum:
1979
ZDB Id:
2078109-X
ZDB Id:
124635-5
