1,3-Bis­(diphenyl­phosphino)propane-2κ²P,P′-{μ-2-[bis(2-mercaptoethyl)amino]­ethanesulfinato(3–)-1κ⁴N,S,S′,S′′:2κ²S,S′}chloro-2κCl-dinitroso-1κ²N-iron(II)nickel(II) acetonitrile hemisolvate

The title compound, [{Fe[(SO₂CH₂CH₂)(SCH₂CH₂)₂N](NO)₂-S,S′}NiCl{[P(C₆H₅)₂]₂(CH₂)₃}]·0.5CH₃CN or [FeNi(C₆H₁₂NO₂S₃)Cl(C₂₇H₂₆P₂)(NO)₂]·0.5C₂H₃N, is described. There are two crystallographically distinct dimetallic complex mol­ecules. In each mol­ecule, the Fe atom is octa­hedrally coordinated, with the three S atoms and an N atom of one of the two NO ligands forming the equatorial plane; the N atoms from the second NO group and the (SO₂CH₂CH₂)(SCH₂CH₂)₂N ligand lie in the axial positions. The Ni atom is square pyramidally coordinated by the two bridging S atoms and the two P atoms forming the basal plane, and by the Cl atom lying in the apical position. Slight differences in the bonding modes of the NO ligands are observed for the two distinct mol­ecules.

1,3-Bis­(diphenyl­phosphino)propane-2κ²P,P′-dicarbonyl-1κ²C-chloro-2κCl-{μ-2,2′,2′′-nitrilo­triethanethiol­ato(3–)-1κ⁴N,S,S′,S′′:2κ²S,S′}iron(II)nickel(II) acetonitrile solvate

The structure of the neutral title complex, [{Fe[(SCH₂CH₂)₃N](CO)₂-S,S′}NiCl{[P(C₆H₅)₂]₂(CH₂)₃}]·CH₃CN or [FeNi(C₆H₁₂NS₃)Cl(C₂₇H₂₆P₂)(CO)₂]·C₂H₃N, is described. There are two independent complex mol­ecules and two solvent mol­ecules in the asymmetric unit. The Fe atoms are octa­hedrally coordinated; the three S atoms and a C atom of one of the two CO ligands form the equatorial plane, with the N atom of the (SCH₂CH₂)₃N ligand and the second carbonyl C atom lying in the axial positions. The Ni atoms are square pyramidally coordinated, with the two bridging S atoms and the P atoms of the 1,3-bis­(diphenyl­phosphino)propane ligand forming the basal plane and the Cl atom lying in the apical position.