A. Hjelmencrantz, Annika Friberg, U. Berg
2000
Citations
0
Influential Citations
20
Citations
Journal
Journal of The Chemical Society-perkin Transactions 1
Abstract
Conformations and inversion barriers of 5H-dibenzo[a,d]cycloheptene (1a), 5-amino-5H-dibenzo[a,d]cycloheptene (1b), 5-chloro-5H-dibenzo[a,d]cycloheptene (1e), 5-hydroxy-5H-dibenzo[a,d]cycloheptene (1d), 5-methyl-5H-dibenzo[a,d]cycloheptene (1f), N-benzyl-5H-dibenzo[a,d]cyclohepten-5-imine (2) and N-(5H-dibenzo[a,d]cyclohepten-5-yl)benzylideneamine (1c) have been studied by means of dynamic nuclear magnetic resonance spectroscopy (DNMR) techniques, and comparison of the experimentally derived thermodynamic parameters was made with MM3, PM3 and ab initio calculated results. Attempts to determine the inversion barrier of 3-isopropyl-5H-dibenzo[a,d]cyclohepten-5-one (3) failed.