Matrix isolation evidence for reversible α-elimination of hydrogen from a chromium methyl compound to give a chromium methylene hydride species
Abstract
I.r. spectroscopic evidence, including 13CO labelling and energy-factored force-field fitting, is presented to show that photolysis of [(η5-C5H5)Cr(CO)3CH3] in gas matrices at 12 K leads to a methylene hydride species, [(η5-C5H5)Cr(CO)2(CH2)H], following CO dissociation and α-H elimination reactions and that this process is reversible.