链状聚[[四水合镁]-μ-(二氢连二磷酸根)-κ(2) O:O']的晶体结构
Crystal structure of catena-poly[[tetra-aqua-magnesium]-μ-(di-hydrogen hypodiphosphato)-κ(2) O:O'].
作者信息
Gjikaj Mimoza, Haase Madeline
机构信息
Institute of Inorganic and Analytical Chemistry, Clausthal University of Technology, Paul-Ernst-Strasse 4, D-38678 Clausthal-Zellerfeld, Germany.
出版信息
Acta Crystallogr E Crystallogr Commun. 2015 Jun 27;71(Pt 7):867-9. doi: 10.1107/S2056989015012037. eCollection 2015 Jul 1.
The crystal structure of the title compound, [Mg(H2P2O6)(H2O)4] n , is built up from (H2P2O6)(2-) anions bridging Mg(2+) cations into chains extending parallel to [011]. The Mg(2+) ion is located on an inversion centre and is octa-hedrally coordinated by the O atoms of two (H2P2O6)(2-) anions and four water mol-ecules. The centrosymmetric (H2P2O6)(2-) anion has a staggered conformation whereby the tetra-valent phospho-rus atom is surrounded tetra-hedrally by three O atoms and by one symmetry-related P atom. A three-dimensional O-H⋯O hydrogen-bonded network of medium strength involving the P-OH group of the anion and the water mol-ecules is present.
标题化合物[Mg(H₂P₂O₆)(H₂O)₄]ₙ的晶体结构由(H₂P₂O₆)²⁻阴离子构成，这些阴离子将Mg²⁺阳离子桥连形成平行于[011]方向延伸的链。Mg²⁺离子位于一个对称中心上，由两个(H₂P₂O₆)²⁻阴离子的O原子和四个水分子八面体配位。中心对称的(H₂P₂O₆)²⁻阴离子具有交错构象，其中四价磷原子被三个O原子和一个对称相关的P原子四面体包围。存在一个由阴离子的P-OH基团和水分子参与的中等强度的三维O-H⋯O氢键网络。
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