Affiliation:
1. Institut für Organische Chemie der Universität Karlsruhe, und
2. Strahlenchemisches Institut am Kernforschungszentrum Karlsruhe
Abstract
All observable long-range 13C-H-coupling constants have been measured for cyclobutadiene-iron-tricarbonyl, 1.2-dimethyl-cyclobutadiene-irontricarbonyl, trimethyl-cyclobutadiene-irontricarbonyl and tetramethyl-cyclobutadiene-irontricarbonyl. The couplings are assigned and discussed with respect to bonding problems in the four-membered ring. A quadratic structure of the cyclobutadiene-system with uniform C—C-bond order is postulated on the basis of these measurements.
Cited by
16 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献