ONE-BOND CC SPIN-SPIN COUPLING-CONSTANTS IN SILYL-SUBSTITUTED CYCLOPROPENES

Authors
JANKOWSKI P KAMIENSKATRELA K MINKSZTYM K WICHA J
Citation
P. Jankowski et al., ONE-BOND CC SPIN-SPIN COUPLING-CONSTANTS IN SILYL-SUBSTITUTED CYCLOPROPENES, Journal of organometallic chemistry, 460(1), 1993, pp. 15-18
Citations number
12
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Journal of organometallic chemistry → ACNP
ISSN journal
0022328X
Volume
460
Issue
1
Year of publication
1993
Pages
15 - 18
Database
ISI
SICI code
0022-328X(1993)460:1<15:OCSCIS>2.0.ZU;2-H
Abstract
One-bond CC spin-spin coupling constants have been measured for three silyl-substituted cyclopropenes. Very small 1J(CC) values have been fo und for endo-cyclic single CC bonds, i.e. ca. 12 Hz for the alkyl subs tituted CC bond and < 3 Hz for that bearing a silyl substituent. A cou pling of ca. 50 Hz has been observed for the double CC bond. The resul ts are interpreted in terms of the s-electron distribution within the systems examined.