Acyl group flipping in heterodimetallic complexes; X-ray crystal structures of [(η5-C5H5)MoMn{µ-C(O)C6H11}(µ-PPh2)(CO)5] and [(η5-C5H5)MoMn{µ-C(O)-CH2CH2CH3}(µ-PPh2)(CO)6]
Abstract
Photolytic reaction of the heterodimetallic complex [(η5-C5H5)MoMn(µ-H)(µ-PPh2)(CO)6] with alkenes gives µ-acyl complexes shown by an X-ray analysis of [(η5-C5H5)MoMn{µ-C(O)C6H11}(µ-PPh2)(CO)5] to contain the Mo–C–O–Mn grouping; reaction with CO results in reversible metal–metal bond cleavage and flipping of the µ-acyl co-ordination to Mo–O–C–Mn, as shown by an X-ray analysis on [(η5-C5H5)MoMn{µ-C(O)CH2CH2CH3}(µ-PPh2)(CO)6].