New Ag(i) inorganic–organic coordination polymers and M(ii) (M = Co(ii) and Mn(ii)) molecular complexes generated from a new type of fulveneligand

Abstract

One new fulvene-type ligand 1 was synthesized successfully by aroylation reaction of substituted cyclopentadienyl anions. The coordination chemistry of fulvene ligands 1 and 2 were investigated. The study demonstrated that these fulvene-type ligands could be used as bidentate or chelating ligands to coordinate transition metal ions into coordination polymers or supramolecular complexes. Two novel one-dimensional Ag(I)–fulvene coordination polymers, namely [Ag(1)₂(PF₆)]·C₆H₆ and [Ag(1)₂(SbF₆)]·2C₇H₈, consisting of an Ag₂(ligand)₂ unit and two M(II) (M = Co(II) and Mn(II)) complexes, namely Co(1)₂·2C₂H₅OH and Mn(2)₂·2C₂H₅OH, with unusual seven-membered metallo-ring units were synthesized successfully. In the solid state, complexes 5 and 6 adopt a novel hydrogen-bonded one-dimensional chain motif.