A selenium-bridged mixed-metal cluster, (CO)5(PPh3)2FePt23-Se)

Panneerselvam, K. ; Lu, T. -H. ; Tung, S. -F. ; Dash, A. K. ; Mathur, P. (1999) A selenium-bridged mixed-metal cluster, (CO)5(PPh3)2FePt23-Se) Acta Crystallographica Section C, 55 . pp. 1250-1253. ISSN 0108-2701

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Official URL: http://scripts.iucr.org/cgi-bin/paper?S01082701990...

Related URL: http://dx.doi.org/10.1107/S0108270199004837


Stirring at room temperature of [(CO)6Fe2{μ-SeC(H)=C(CH2OH)Se}] with Pt(PPh3)4 or Pt(C2H4)(PPh3)2 in dichloromethane affords the μ3-Se-bridged mixed-metal cluster pentacarbonyl-1κ3C,2κC,3κC-μ3-selenido-1:2:3κ3Se-bis( triphenylphosphine)-2κP,3κP-irondiplatinum(2 Fe-Pt), [FePt23-Se)(C18H15P)2(CO)5]. The structure can be described as an FePt2Se butterfly; each Pt atom is coordinated by one CO and one PPh3 group, whereas the Fe atom is bonded to three CO groups. The Fe atom is in a distorted octahedral environment. The bridging Se atom is bonded to the open triangular array of FePt2 in a μ3 coordination mode. The geometry around the Pt atoms is distorted square planar.

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