Ha Kwang
School of Applied Chemical Engineering, The Research Institute of Catalysis, Chonnam National University, Gwangju 500-757, Republic of Korea.
Acta Crystallogr Sect E Struct Rep Online. 2011 Jun 1;67(Pt 6):m656-7. doi: 10.1107/S1600536811015388. Epub 2011 May 7.
The asymmetric unit of the title compound, [Mn(CH(3)CN)(C(8)H(6)N(4))(2)(H(2)O)]Mn(C(8)H(6)N(4))(2)(H(2)O)(2)(4)·2H(2)O, contains two distinct cationic Mn(II) complexes, four perchlorate anions and two solvent water mol-ecules. In the two complexes, both Mn(II) ions are six-coordinated in a distorted octa-hedral environment, but one Mn ion has a cis-N(5)O coordination geometry defined by four N atoms of the two chelating 2,2'-bipyrimidine (bpym) ligands, one N atom of a coordinating acetonitrile mol-ecule and one O atom of a water ligand, whereas the other Mn ion has a cis-N(4)O(2) 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 mol-ecules, anions and solvent water mol-ecules are linked by inter-molecular 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.
标题化合物[Mn(CH₃CN)(C₈H₆N₄)₂(H₂O)]Mn(C₈H₆N₄)₂(H₂O)₂₄·2H₂O的不对称单元包含两个不同的阳离子Mn(II)配合物、四个高氯酸根阴离子和两个溶剂水分子。在这两个配合物中，两个Mn(II)离子均在扭曲的八面体环境中六配位，但一个Mn离子具有由两个螯合2,2'-联嘧啶(bpym)配体的四个N原子、一个配位乙腈分子的N原子和一个水配体的O原子定义的顺式N₅O配位几何构型，而另一个Mn离子具有由两个bpym配体的四个N原子和两个水配体的O原子定义的顺式N₄O₂配位几何构型。在晶体结构中，配合物分子、阴离子和溶剂水分子通过分子间的O—H⋯O和O—H⋯N氢键相连。四个高氯酸根阴离子中的三个在两组位置上以不同比例无序分布。
