Trabelsi Sonia, Marouani Houda, Al-Deyab Salem S, Rzaigui Mohamed
Acta Crystallogr Sect E Struct Rep Online. 2012 Aug 1;68(Pt 8):m1056. doi: 10.1107/S1600536812031042. Epub 2012 Jul 14.
The title compound, (C(3)H(12)N(2))[Cr(2)O(7)], consists of a discrete dichromate anion with an eclipsed conformation and a propane-1,3-diammonium cation. Both kinds of ions have a mirror plane passing through the bridging O atom and the central methyl-ene C atom of the Cr(2)O(7) (2-) and C(3)H(12)N(2) (2+) moieties, respectively. Anions and cations are alternately stacked to form columns parallel to the b axis. Ions are linked by intra- and inter-column hydrogen bonds of types N-H⋯O and C-H⋯O, involving O atoms of the dichromate anions as acceptors, and ammonium or methyl-ene groups as donors.
标题化合物(C₃H₁₂N₂)[Cr₂O₇]由一个具有重叠构象的离散重铬酸根阴离子和一个丙烷 - 1,3 - 二铵阳离子组成。两种离子都分别有一个镜面，该镜面分别穿过Cr₂O₇²⁻的桥连O原子和中心亚甲基C原子以及C₃H₁₂N₂²⁺部分。阴离子和阳离子交替堆叠形成平行于b轴的柱。离子通过N - H⋯O和C - H⋯O类型的柱内和柱间氢键相连，其中重铬酸根阴离子的O原子作为受体，铵基或亚甲基作为供体。
