Interaction of Dichloride Iron(II) Clathrochelate with Dimercaptomaleodinitrile: Synthesis of the Precursor Monoribbed-Functionalized Phthalocyaninoclathrochelates and the Unexpected Formation of a New Thiophene-Containing Heterocyclic System in the Ribbed Chelate Fragment of the Clathrochelate Framework

Clathrochelate iron(II) FeBd2(S2C2(CN)2Gm)(BF)2 tris-dioximate with a ribbed vic-dinitrile fragment was synthesized as a precursor of the monoribbed-functionalized hybrid phthalocyaninoclathrochelates by nucleophilic substitution of the vic-dichloride FeBd2(Cl2Gm)(BF)2 clathrochelate (1) with the potassium salt of dimercaptomaleodinitrile. Reaction of nitromethane with this salt was followed by the condensation of the reaction products with 1 to yield the clathrochelate with an annulated previously unknown thiazinothiophene heterocyclic system in the ribbed fragment. Both complexes were characterized on the basis of elemental analysis; MALDI-TOF mass spectrometry; IR, UV–vis, 57Fe Mössbauer, and NMR spectroscopies; and X-ray crystallography.