title: μ-Oxalato-bis-[bis-(2,2'-bipyridine)-manganese(II)] bis(perchlorate) 2,2'-bipyridine solvate.
abstract: The unit cell of the title compound, [Mn(2)(C(2)O(4))(C(10)H(8)N(2))(4)](ClO(4))(2)·C(10)H(8)N(2), consists of a binuclear cation, two perchlor-ate anions, and one solvent 2,2'-bipyridine (bpy) mol-ecule. In the complex cation [Mn(2)(C(2)O(4))(C(10)N(2)H(8))(4)](2+), two Mn(II) atoms are bridged by a bis-(bidentate) oxalate ligand, each Mn(II) atom being further coordinated by two bpy ligands in a distorted octa-hedral geometry. The distance between the two six-coordinated metal atoms is 5.583 (1) Å. π-π stacking inter-actions [inter-planar distances between bpy rings = 3.739 (1) Å] are essential to the supramolecular assembly. There are extensive inter-ionic C-H⋯O inter-actions between the cations and between the cation and anion. Three of the four perchlorate O atoms are disordered over two sets of sites with occupancy ratios of 0.852 (6):0.148 (6).
authors: Center of Applied Solid State Chemistry Research, Ningbo University, Ningbo, Zhejiang, 315211,  People's Republic of China.
authors: Kang-Kang
authors: KK
authors: Li
authors: Chun
authors: C
authors: Zhang
authors: Wei
authors: W
authors: Xu