The title compound, [V(2)F(2)O(4)(C(12)H(8)N(2))(2)], is a centrosymmetric binuclear vanadium(V) species with the metal ions in a distorted octa-hedral environment. The symmetry-equivalent V(V) atoms exhibit coordination geometries defined by cis-terminal fluoride and oxide groups, unsymmetrically bridging oxide groups and the N-atom donors of the phenanthroline ligands. The crystal packing is ...

New high-capacity intercalation cathodes of Li2V x Cr1-x O2F with a stable disordered rock salt host framework allow a high operating voltage up to 3.5 V, good rate performance (960 Wh kg-1 at ≈1 C), and cycling stability.

Er(3+) doped oxyfluoride tellurite glasses have been prepared. Three Judd-Ofelt parameters Ωt (t=2, 4, 6) and radiative properties are calculated for prepared glasses. Emission characteristics are analyzed and it is found that prepared glasses possess larger calculated predicted spontaneous transition probability (39.97 s(-1)), emission cross section σem (10.18 × 10(-21)cm(2)) and σem × Δλeff (...

The title compound, [V(2)F(2)O(4)(C(10)H(8)N)(2)], is a centrosymmetric binuclear vanadium(V) species with the metal ions in a distorted octa-hedral environment. The coordination geometries of the symmetry-equivalent V(V) atoms are defined by cis-terminal fluoride and oxide groups, unsymmetrically bridging oxide groups and the N-atom donors of the bipyridyl ligand. The crystal packing is stabil...