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Pentacarbonyl-1κ2C,2κ3C-(μ-pyrazine-2,3-dithiolato-1:2κ4S,S′:S,S′)(trimethylphosphane-1κP)diiron(I)(Fe-Fe)

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INT UNION CRYSTALLOGRAPHY
DOI: 10.1107/S1600536811046770

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Funding

  1. Scientific and Technological Development Project of Jilin Province [201101103]
  2. National Natural Science Foundation of China [61106050]

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In the title compound, [Fe-2(C4H2N2S2)(C3H9P)(CO)(5)], the Fe2S2 core adopts a butterfly conformation. The PMe3 ligand is coordinated in the basal position, roughly cis to the Fe-Fe bond. The Fe-Fe distance of 2.4970 (6) angstrom is relatively short compared to those (ca 2.53 angstrom) found in another monosubstituted diiron compound. A rigid planar dithiolate bridge is featured, with an angle of 2.78 (1)degrees between the Fe-Fe bond and the normal to the pyrazine-2,3-dithiolate plane.

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