论文信息 - Interchange of SPh and PPh2 groups at a dicobalt centre: crystal and molecular structures of [Co2(µ-PPh2){µ-SPhC(O)CHCH}(CO)4] and [Co2(µ-SPh){µ-PPh2CHCHC(O)}(CO)2{P(OMe)3}2]

Interchange of SPh and PPh2 groups at a dicobalt centre: crystal and molecular structures of [Co2(µ-PPh2){µ-SPhC(O)CHCH}(CO)4] and [Co2(µ-SPh){µ-PPh2CHCHC(O)}(CO)2{P(OMe)3}2]

The thermal reaction of [Co2(µ-PPh2){µ-SPhC(O)CHCH}(CO)4] with P(OMe)3 leads, in addition to carbonyl substitution, to a novel ligand rearrangement in which the PPh2 and SPh groups interchange positions, giving the new organometallic derivative [Co2(µ-SPh){µ-PPh2CHCHC(O)}(CO)2{P(OMe)3}2]; both complexes are characterised by X-ray diffraction studies.

G. Solan | Avelino Martín | P. Raithby | M. J. Mays | A. Edwards

[1] D. Braga,et al. Reactions of P2Ph4 with alkyne-bridged dicobalt carbonyl complexes; crystal structures of [Co2{µ-C2(CO2Me)2}(µ-P2Ph4)(CO)4], [Co2{µ-PPh2CHCPhC(O)}(µ-PPh2)(CO)4] and [Co2{µ-PPh2C(O)CHCH}(µ-PPh2)(CO)3(PPh3)] , 1991 .

[2] N. Taylor,et al. Reactivity of phosphido-bridged heteronuclear compounds: insertion of carbon monoxide and diphenylacetylene into the phosphido bridge of RuCo(CO)7(.mu.-PPh2). X-ray structure of RuCo(CO)5(.mu.-CO)[.mu.-.eta.2-PPh2C(O)C(Ph)C(Ph)] , 1984 .

[3] R. Mathieu,et al. Structural study of iron carbonyl derivatives ☆: V. Synthesis and crystal and molecular structure of μ-(SC6H5)-μ-(P(C6H5)2)Fe2(CO)6 , 1977 .