Crystal-Structure of Bis(2,2'-6',2'-terpyridine)manganese(II) Bis(triiodide) [Mn(terpy)₂](I₃)₂

Abstract

The crystal structure of [ Mn ( terpy )₂](I₃)₂( terpy = 2,2°:6°,2°-terpyridene) has been determined by X-ray crystallography. The crystals are triclinic, space group Pī , a 9.357(4), b 8.600(2), c 24.531(8) Ǻ, α 93.64(2), B 95.58(3), γ 91.52(2)°, Z 2, V 1960(1)Ǻ³. The structure has been refined to a residual R of 0.065 (R_w 0.070). The coordination sphere of the metal ion is distorted octahedral with each terpy ligand coordinated in a meridional fashion. The structure is compared with those of other M( terpy )₂ⁿ⁺ complexes formed by first-row transition metal ions.