A Rhenium–Cyclohexane Complex with Preferential Binding of Axial C H Bonds: A Probe into the Relative Ability of C H, C D, and C C Bonds as …

DJ Lawes, TA Darwish, T Clark…

Index: Lawes, Douglas J.; Darwish, Tamim A.; Clark, Timothy; Harper, Jason B.; Ball, Graham E. Angewandte Chemie - International Edition, 2006 , vol. 45, # 27 p. 4486 - 4490

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Citation Number: 51

Abstract

ÉÉÉÉÉÉÉÉÉ! ΩCpRe COfi2 cyclopentanefiä 1fi assigned to the protons of the bound methylene unit. The fact that a single resonance is observed, coupled with a highly shielded 13C resonance and a large equilibrium isotope shift accompanying deuterium incorporation,[3c] suggests a fast exchange between two equivalent complexes in which one of the C¿ H bonds in this methylene unit is complexed with the metal center. A rapid, ...