Zur Darstellung und Kristallstruktur des SrZnSb₂ / On the Preparation and Crystal Structure of SrZnSb₂

Abstract

<jats:title>Abstract</jats:title><jats:p> SrZnSb<jats:sub>2</jats:sub> has been prepared and characterized analytically and structurally. The compound crystallizes in the orthorhombic system with a = 2305 ± 5 pm, b = 437 ± 1 pm, c = 446 ± 1 pm, Pnma-D<jats:sub>2h</jats:sub><jats:sup>16</jats:sup>. Zn- and Sb-atoms form distorted fourfold pyramids, connected by common edges in the basis to two-dimensional sheets. These sheets are separated by double layers of Sr-atoms in which further Sb-atoms are located building four-cornered networks.</jats:p>

The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides

“…Compounds based on Sr 2 Mn 3 As 2 O 2 are bodycentered-tetragonal (I 4/mmm) with a = 4.14Å and c = 18.82Å for Sr 2 Mn 3 As 2 O 2 and with 2 f.u./unit cell. 498 As shown in Fig. 93, the crystal structure consists of Mn(1)O 2 layers that are isostructural with the CuO 2 layers in the layered cuprate high T c superconductors, that are interlaced with Mn(2)As layers that are isostructural with the FeAs layers in the iron arsenide high T c superconductors.…”

Magnetic and electrical properties and carrier doping effects on the iron-based host compound Sr2ScFeAsO3

“…The structure of Sr 4 Sc 2 Fe 2 P 2 O 6 consists of the perovskite-realted Sr 2 ScO 3 layers and the Fe 2 P 2 layers, alternatively stacking up [17,18].…”

Reduction of lattice thermal conductivity from planar faults in the layered Zintl compound SrZnSb2

“…8 This compound crystallizes in the orthorhombic space group Pnma, with unit cell axes a ¼ 23.05 Å , b ¼ 4.37 Å , and c ¼ 4.46 Å . 9 The structure is formed by layers of Sr, Sb, and Zn stacked along the a axis [ Fig. 1(a)] with adjacent layers of Sb and Zn atoms forming tetrahedra, see Fig.…”

“…2 of Ref. 9. The structure and bonding of layered Zintl compounds are extensively discussed by Burdett and Miller.…”