Formation of complexes with C ⋯ H ⋯ Mn interactions from reactions of dienes or acetylene with a µ-hydrido heterometallic dimer; X-ray crystal structures of [(η5-C5H5)MoMn(µ-H)(µ-PPh2)(CO)6], [(η5-C5H5)MoMn{µ–σ : η3-CH2C(Me)CHMe}(µ-PPh2)(CO)4], and [(η5-C5H5)MoMn{µ–σ : η4-CHCHCH2CHPPh2}(CO)4]

Abstract

The heterodimetallic complex [(η⁵-C₅H₅)MoMn(µ-H)(µ-PPh₂)(CO)₆], the structure of which has been established by X-ray analysis, reacts with dienes and with acetylene under photolysis; two of the products, [(η⁵-C₅H₅(MoMn{µ–σ : η³-CH₂C(Me)CHMe}(µ-PPh₂)(CO)₄] and [(η⁵-C₅H₅)MoMn{µ–σ : η⁴-CHCHCH₂CHPPh₂}(CO)₄] have been characterised by X-ray analysis and show unusual bonding modes for the organic ligands.