Synthesis and crystal structure of Os₄S₁₁SeCl₈

Chem. Met. Alloys 3 (2010) 191-196

https://doi.org/10.30970/cma3.0169

Sergei V. VOLKOV, Roman E. GLADYSHEVSKII, Pavlo Yu. DEMCHENKO, Oleg G. YANKO, Lev G. AKSELRUD, Lyudmila B. KHARKOVA, Zoya A. FOKINA

A new quaternary osmium compound, Os₄S₁₁SeCl₈, has been synthesized and its crystal structure has been determined by X-ray powder diffraction. The crystal structure of Os₄S₁₁SeCl₈ (Pbcn – d ⁶, oP48, Z = 2, a = 8.8845(2), b = 11.8108(3), c = 10.9621(3) Å; 713 reflections measured, 34 parameters refined, R_I = 0.0230, R_p = 0.0302, R_wp = 0.0413, χ² = 2.87) represents a new structure type of inorganic compounds. Binuclear clusters with a partly disordered arrangement of S₂ and S‑Se ligands are interconnected via double Cl‑bridges to form 1D-polymers [Os₂Cl₄(μ‑S₂)(μ‑S(S,Se))₂]_n.

Crystal structure of the Os₄S₁₁SeCl₈ linear polymer showing packing of Os[(S,Se)₃Cl₃] octahedra.

Keywords

Inorganic materials / Chemical synthesis / Powder diffraction / Crystal structure