A cuboidal [Cu4(SO4)4] structure supported by β-picoline ligands

Abstract

The solid-state structure of the cobalt–β-picoline–sulfate complex tetra-μ3-sulfato-tetrakis[bis(3-methylpyridine)cobalt(II)], [Co4(SO4)4(C6H7N)8], is reported. The tetrameric cobalt cluster contains a cuboidal core comprised of four cobalt(II) cations and four sulfate anions at alternate cube vertices. The cobalt corners are each capped with two β-picoline ligands. The sulfate anions adopt a rare [3.2110] bridging motif, and the cuboidal cluster is unprecedented in coordination chemistry.

Keywords

• crystal structure
• picoline
• sulfate
• transition metal
• coordination chemistry
• cobalt complexes