Hydroflux synthesis and crystal structure of Tl3IO

被引：12

作者：

Albrecht, Ralf ^{[1
]}

Menning, Heinrich ^{[1
]}

Doert, Thomas ^{[1
]}

Ruck, Michael ^{[1
,2
]}

机构：

[1] Tech Univ Dresden, Chair Inorgan Chem 2, Bergstr 66, D-01069 Dresden, Germany

[2] Max Planck Inst Chem Phys Solids, Nothnitzer Str 40, D-01187 Dresden, Germany

来源：

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS | 2020年 / 76卷

关键词：

crystal structure; hydroflux synthesis; thallium; oxide iodide; single-crystal XRD;

D O I：

10.1107/S2056989020012359

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Single-crystals of thallium(I) iodide oxide Tl3IO were obtained as by-product in a hydroflux synthesis at 473 K for 10 h. A potassium hydroxide hydroflux with a water-base molar ratio of 1.6 and the starting materials TlNO3, RhI3 and Ba(NO3)(2) was used, resulting in a few black needle-shaped crystals. X-ray diffraction on a single-crystal revealed the hexagonal space group P6(3)/mmc (No. 194) with lattice parameters a = 7.1512 (3) angstrom and c = 6.3639 (3) angstrom. Tl3IO crystallizes as hexagonal anti-perovskite (anti-BaNiO3 type) and is thus structurally related to the alkali-metal halide/auride oxides M3XO (M = K, Rb, Cs; X = Cl, Br, I, Au). The oxygen atoms center thallium octahedra. The [OTl6] octahedra share trans faces, forming a linear chain along [001]. Twelve thallium atoms surround each iodine atom in an [ITl12] anti-cuboctahedron. Thallium and iodine atoms together form a hexagonal close-sphere packing, in which every fourth octahedral void is occupied by oxygen.

引用

页码：1638 / +

页数：6

共 22 条

[1] Hydroflux Synthesis and Characterization of the Non-Centrosymmetric Oxomanganate(V) KSrMnO4 [J].