Crystal structure of catena-poly[[[aqua­bis­(di­methyl­formamide-κO)magnesium(II)]-μ3-(2,2′-bi­pyridine-5,5′-di­carboxyl­ato-κ5O2:O2′:N,N′:O5)-[di­chlorido­platinum(II)]] di­methyl­formamide monosolvate]

Acta Crystallographica Section E: Crystallographic Communications

Lundvall, F.¹  Tilset, M.² 

[1] Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, PO Box 1126, 0315 Oslo, Norway;Department of Chemistry, University of Oslo, PO Box 1033, 0315 Oslo, Norway

关键词: CRYSTAL STRUCTURE;    COORDINATION POLYMER;    BIMETALLIC COMPOUND;    METAL-ORGANIC FRAMEWORK;    CATALYSIS;   

DOI  :  10.1107/S2056989017008118

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

The title compound, {[MgPtCl2(C12H6N2O4)(C3H7NO)2(H2O)]·C3H7NO}n, is a one-dimensional coordination polymer. The structure consists of Pt-functionalized bi­pyridine ligands connected by MgII cations, as well as coordinating and non-coordinating solvent mol­ecules. The PtII cation is coordinated by the two N atoms of the bi­pyridine moiety and two Cl atoms in a square-planar fashion. This coordination induces an in-plane bend along the bi­pyridine backbone of approximately 10° from the linear ideal of a conjugated π-system. Likewise, the coordination to the MgII cation induces a significant bowing of the plane of the bi­pyridine of about 12°, giving it a distinct curved appearance. The carboxyl­ate groups of the bi­pyridine ligand exhibit moderate rotations relative to their parent pyridine rings. The MgII cation has a fairly regular octa­hedral coordination polyhedron, in which three vertices are occupied by O atoms from the carboxyl­ate groups of three different bi­pyridine ligands. The remaining three vertices are occupied by the O atoms of two di­methyl­formamide (DMF) mol­ecules and one water mol­ecule. The one-dimensional chains are oriented in the [01-1] direction, and non-coordinating DMF mol­ecules can be found in the space between the chains. The shortest inter­molecular O⋯H contacts are 2.844 (4) and 2.659 (4) Å, suggesting moderate hydrogen-bonding inter­actions. In addition, there is a short inter­molecular Pt⋯Pt contact of 3.491 (1) Å, indicating a Pt stacking inter­action. Some structure-directing contribution from the hydrogen bonding and Pt⋯Pt inter­action is probable. However, the crystal packing seems to be directed primarily by van der Waals inter­actions.

【 授权许可】

CC BY