title: Rearrangement of the tris(2-pyridylthio)methanido ligand in an iron(II) complex containing an Fe-C bond.
abstract: Iron(II) tris(2-pyridylthio)methanido (1) containing an Fe-C bond, obtained from the reaction of tris(2-pyridylthio)methane (HL(1)) and iron(II) triflate, reacts with protic acid to generate iron(II) bis(2-pyridylthio)carbene (1a). The carbene complex is converted to an iron(II) complex (2) of the 1-[bis(2-pyridylthio)methyl]pyridine-2-thione ligand (L(3)) upon treatment with a base. Complex 2 reversibly transforms to 1a in the presence of an acid. During the transformation of 1 to 2, a novel rearrangement of L(1) to L(3) takes place. The iron(II) complexes are reactive toward dioxygen to form the corresponding iron(III) complexes.
authors.affiliation: Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, India.
authors.forename: Partha
authors.initials: P
authors.lastname: Halder
authors.forename: Tapan Kanti
authors.initials: TK
authors.lastname: Paine
mesh_terms: D005296:Ferrous Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D008958:Models, Molecular; D011725:Pyridines / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D005296:Ferrous Compounds; D011725:Pyridines; C029347:2-thiopyridine