Abstract
The title compound, [Fe(C4H2N2S2)(C3H9P)2(CO)2], was obtained as a mononuclear by-product during the treatment of [Fe2(μ-S2C4N2H2)(CO)6] in excess trimethylphosphane. The Fe atom is six-coordinated by two thiolate S atoms, two phosphane P atoms and two carbonyl C atoms in a distorted octahedral geometry. The average Fe—C(O) distance (1.771 Å) is relatively shorter than that of its parent hexacarbonyldiiron compound, and differs by 0.511 Å from the average Fe—P(Me)3 distance. The five-membered FeC2S2 chelate ring plane is close to being perpendicular to the P/Fe/P plane [86.5 (2)°].
Highlights
The title compound, [Fe(C4H2N2S2)(C3H9P)2(CO)2], was obtained as a mononuclear by-product during the treatment of [Fe2(-S2C4N2H2)(CO)6] in excess trimethylphosphane
The Fe atom is six-coordinated by two thiolate S atoms, two phosphane P atoms and two carbonyl C atoms in a distorted octahedral geometry
The five-membered FeC2S2 chelate ring plane is close to being perpendicular to the P/Fe/P plane [86.5 (2)]
Summary
Key indicators: single-crystal X-ray study; T = 273 K; mean (C–C) = 0.003 A; R factor = 0.029; wR factor = 0.073; data-to-parameter ratio = 19.1. The title compound, [Fe(C4H2N2S2)(C3H9P)2(CO)2], was obtained as a mononuclear by-product during the treatment of [Fe2(-S2C4N2H2)(CO)6] in excess trimethylphosphane. The average Fe—C(O) distance (1.771 A ) is relatively shorter than that of its parent hexacarbonyldiiron compound, and differs by 0.511 Afrom the average Fe—P(Me) distance. Related literature For general background to iron sulfides, see: Cody et al (2000); Georgakaki et al (2003); Capon et al (2005); Song (2005); Li et al (2005); Liu & Xiao (2011). For related structures and the synthesis, see: Durgaprasad et al (2011).
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