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Structure. -Crystals of the new compound Bi 4Ir are prepared by reaction of a precursor of nominal composition Sm 3Ir3Sb7 (obtained by arc-melting the elements) with liquid bismuth (corundum crucible, 1370 K, 7 d, followed by annealing at 1070 K for 7 d). Bi4Ir crystallizes in the rhombohedral space group R3 with Z = 27 (single crystal XRD). The basic building units of the structure are square-prismatic and skewed-square-antiprismatic [IrBi 8] units, which condense to a complex three-dimensional network that is dominated by strong Ir-Bi bonding. DFT based band structure calculations suggest metallic properties. -(ISAEVA, A.; RUCK*, M.; SCHAEFER, K.; RODEWALD, U. C.; POETTGEN, R.; Inorg. Chem. 54 (2015) 3, 885-889, http://dx.

2D 31 P Solid State NMR Spectroscopy, Electronic Structure and Thermochemistry of PbP 7. -Phase pure polycrystalline PbP7 is prepared by solid state reaction of a 1:1 mixture of the elements using Pb as a flux (evacuated quartz tubes, 673 K, 6 d; 90-95% yield based on P). The compound crystallizes in the space group P2 1/c and is composed of a complex 3D polyphosphide network with Pb filling the cages. The P substructure consists of trans-edge-shared P 6 hexagons forming strands. The assignment of the previously published 31 P solid state NMR spectrum to the seven distinct crystallographic sites is accomplished by r.f. driven dipolar recoupling (RFDR) experiments showing no obvious correlation between the 31 P chemical shift and structural parameters. PbP 7 decomposes incongruently. The thermal decomposition starts at 550 K with a vapor pressure almost similar to that of red P. Electronic structure calculations reveal that PbP 7 is a semiconductor according to the Zintl description and exhibits stereo-active Pb 6s 2 lone pairs. -(BENNDORF, C.; HOHMANN, A.; SCHMIDT, P.; ECKERT*, H.; JOHRENDT, D.; SCHAEFER, K.; POETTGEN, R.; J. Solid State Chem. 235 (2016) 139-144, http://dx.

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La2NiSb is prepared by annealing a cold‐pressed pellet of the elements (evacuated silica tube, 1120 K, 500 h).