Crystal structure of [Co(NH3)6][Co(CO)4]2

Acta Crystallographica Section E: Crystallographic Communications

Mü¹  Kraus, F.¹  ller, T.G.² 

[1] Anorganische Chemie, Fluorchemie, Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany

关键词: CRYSTAL STRUCTURE;    COBALT CARBONYL;    AMMONIA;    HYDROGEN BONDING;   

DOI  :  10.1107/S2056989015020290

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

Hexaamminecobalt(II) bis­[tetra­carbonyl­cobaltate(-I)], [Co(NH3)6][Co(CO)4]2, was synthesized by reaction of liquid ammonia with Co2(CO)8. The CoII atom is coordinated by six ammine ligands. The resulting polyhedron, the hexa­amminecobalt(II) cation, exhibits point group symmetry -3. The Co-I atom is coordinated by four carbonyl ligands, leading to a tetra­carbonyl­cobaltate(−I) anion in the shape of a slightly distorted tetra­hedron, with point group symmetry 3. The crystal structure is related to that of high-pressure BaC2 (space group R-3m), with the [Co(NH3)6]2+ cations replacing the Ba sites and the [Co(CO)4]− anions replacing the C sites. N—H⋯O hydrogen bonds between cations and anions stabilize the structural set-up in the title compound.

【 授权许可】

CC BY