All in One ‐ Complete Issue: ChemInform 12/2016

Abstract

O: A New V 4+ Layer Structure Related to VOF 3 . -Single crystals of the title compound are prepared by hydrothermal reaction of VF 3 and H 2 SeO 3 in ethylene glycol/HF (40%) in the presence of Et 2 NH (autoclave, 393 K, 4 d). The compound crystallizes in the monoclinic space group C2/c (Z = 4, single crystal XRD) and features an infinite V 4+ -containing 2D layer of F-bridged corner-and edge--sharing VOF 4 (H 2 O) off-centered octahedral building units. H 2 O resides between the layers. -(BLACK, C.; LIGHTFOOT*, P.; Acta Crystallogr., Sect. C: Cryst. Struct. Commun. 72 (2016) 1, 80-83, http://dx.Synthesis, Crystal and Electronic Structure of the Quaternary Sulfides Ln 2CuMS5 (Ln: La, Ce; M: Sb, Bi). -Ln 2 CuMS 5 (Ln: La, Ce; M: Sb, Bi) are prepared by solid state reactions of stoichiometric mixtures of Ln, Cu, M, and S (1173 K, 3 d; 70-80% yield). La 2 CuSbS 5 crystallizes in a new structure type (space group Ima2, Z = 4; single crystal XRD) with isolated (CuS 4 ) 7tetrahedra linked together by (SbS) + groups. La 2CuBiS5 and Ce2CuBiS5 crystallize with the La2CuInSe5 structure type (space group Pnma, Z = 4). Similarities and differences between both structures are discussed. Electronic structure calculations for La 2 CuSbS 5 and La 2 CuBiS 5 suggest semiconducting behavior with energy gaps exceeding 1.7 eV. -(KUSSAINOVA, A. M.; AKSELRUD, L. G.; SUEN, N.-T.; VOSS, L.; STOYKO, S.; BOBEV*, S.; J. Solid State Chem. 233 (2016) 269-276, http://dx.