cis-(Acetonitrile-κN)aquabis(2,2′-bipyrimidine-κ2N1,N1′)manganese(II) cis-diaquabis(2,2′-bipyrimidine-κ2N1,N1′)manganese(II) tetrakis(perchlorate) dihydrate

• Main Author: Kwang Ha
• Format: Article
• Language: English
• Published: International Union of Crystallography 2011-06-01
• Series: Acta Crystallographica Section E
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S1600536811015388

The asymmetric unit of the title compound, [Mn(CH3CN)(C8H6N4)2(H2O)][Mn(C8H6N4)2(H2O)2](ClO4)4·2H2O, contains two distinct cationic MnII complexes, four perchlorate anions and two solvent water molecules. In the two complexes, both MnII ions are six-coordinated in a distorted octahedral environment, but one Mn ion has a cis-N5O coordination geometry defined by four N atoms of the two chelating 2,2′-bipyrimidine (bpym) ligands, one N atom of a coordinating acetonitrile molecule and one O atom of a water ligand, whereas the other Mn ion has a cis-N4O2 coordination geometry defined by four N atoms of the two bpym ligands and two O atoms of water ligands. In the crystal structure, the complex molecules, anions and solvent water molecules are linked by intermolecular O—H...O and O—H...N hydrogen bonds. Three of the four perchlorate anions are disordered over two sets of sites in different ratios.