New Ag(I) organometallic coordination polymer and Co(II) supramolecular complex generated from a new type of fulvene ligand

One novel fulvene ligand HL was synthesized successfully by an aroylation reaction of substituted cyclopentadienyl anion. The coordination chemistry of fulvene ligand HL is investigated. The study demonstrated that the fulvene-type ligand HL could be used as multidentate or chelating ligand to coordinate transition metal ions into a coordination polymer or a supramolecular complex. One novel one-dimensional Ag(l)-fulvene organometallic coordination polymer, namely, [Ag(HL)(H2O)]SbF6 (1) and one Co(II) complex, namely, Co(L)(2)center dot 2C(2)H(5)OH (2), with an unusual seven-membered metallo-ring unit were synthesized successfully based on HL and L, respectively. In the solid state, complex 2 adopts a novel hydrogen bonded one-dimensional chain motif.