Novel BEDT-TTF salts with magnetic anions [MoOCl4(H2O)]− and [Re2(NCS)10]3−

We report two novel BEDT-TTF salts containing magnetic transition metal anions. Both compounds are unusual in not containing discrete layers of anions and cations. In (BEDT-TTF)[MoOCl4(H2O)] the anions form hydrogen-bonded chains that lie in between 1-dimensional ribbons of edge-linked BEDT-TTF molecules. The compound is semiconducting with σ300K≈0.5Scm−1, EA≈0.1eV. In (BEDT-TTF)3[Re2(NCS)10].CH2Cl2 no continuous network of BEDT-TTF exists, however π- π interactions are seen between the cation and the [Re2(NCS)10]3− anion. The compound is semiconducting with σ300K≈ 0.01 Scm−1, EA=0.30eV.