The title compound is synthesized by reaction of a 2:1 mixture of CeN and CrN (sealed Ni ampule, 1320 K).

The new compounds (La1‐xCa3+xN1‐x/3)Bi2 (x= 0.10, 0.05, 0.00), (Ce0.7Ca3.3N0.9)Bi2, and (PrCa3N)Bi2 are characterized by powder X‐ray and neutron diffraction, magnetic susceptibility, and electrical resistivity measurements.

Mixed-Valent Compound? -The cubic inverse perovskite (Ca2EuN0.75)Sn is synthesized by solid state reaction of Ca, EuN, and Sn in a molar ratio of 2:1:1 (Ta ampule, 1213 K, 192 h and 1323 K, 96 h). The compound is characterized by powder XRD, XAS, Moessbauer spectroscopy, and electrical resistivity and magnetic susceptibility measurements. The compound is a heavily doped semiconductor in which both di-and trivalent Eu is located on one crystallographic site. Therefore, (Ca2EuN0.75)Sn is regarded as an example for the extremely rare case of a homogeneously mixed-valent europium compound. -(GAEBLER, F.; BRAEUNLING, D.; SCHNELLE, W.; SCHELLENBERG, I.; POETTGEN, R.; NIEWA*, R.; Z. Anorg. Allg. Chem. 637 (2011) 7-8, 977-982, http://dx.

Lanthanum(III) Iron(II) Sulfide HalidesLa53Fe12S90X3 (X: Cl, Br, I). -The title compounds are synthesized by reaction of La2S3 and FeS in a reactive LaX3 (X: Cl, Br, I) flux at 1320 K (graphite crucible in an evacuated quartz tube, 2 d). The compounds are isostructural and crystallize in the rhombohedral space group R3m with Z = 1 (single crystal XRD). The structure contains face-shared S 9 double-octahedra which are linked to are linked to bi-or tri-capped La III S6+n (n = 2 or 3) trigonal prisms by face-and vertex-sharing, forming a three-dimensional framework containing cuboctahedral cavities of two sizes. The larger cavities are filled by halide ions, while the smaller cavities accommodate numerous sites for disordered lanthanum cations, modelling a network of diffusion pathways through the structure. Molecular dynamic simulations confirm a strong coupling between the motions of the mobile lanthanum ions and the neighboring sulfide ions. -(BRAEUNLING, D.; LEONI, S.; MILLS, A. M.; RUCK*, M.; Z.

Synthesis, Crystal Structure and Lithium Motion of Li 8 SeN 2 and Li 8 TeN 2 . -The title compounds are prepared from mixtures of Li2E (E: Se, Te) and Li3N (Ta ampules, 1023 K). The crystal structures are determined by single crystal XRD, powder XRD, and powder neutron diffraction. The compounds crystallize in the tetragonal space group I41md with Z = 4. Li motion in the title compounds is characterized by solid state NMR spectroscopy. The chemical bonding of the different Li atoms is investigated by NMR spectroscopy in combination with quantum chemical calculations. -(BRAEUNLING, D.; PECHER, O.; TROTS, D. M.; SENYSHYN, A.; ZHEREBTSOV, D. A.; HAARMANN, F.; NIEWA*, R.; Z. Anorg. Allg. Chem. 636 (2010) 6, 936-946,