Arbuckle William, Kennedy Alan R, Morrison Catriona A
Acta Crystallogr Sect E Struct Rep Online. 2009 Jul 4;65(Pt 8):o1768-9. doi: 10.1107/S1600536809025288.
THE ASYMMETRIC UNIT OF THE TITLE COMPOUND [SYSTEMATIC NAME: (R,R)-2,4-bis-(4-hydroxy-phen-yl)-N,N'-dimethyl-3-oxapentane-1,5-diammonium bis-(hydrogen sulfate)], C(18)H(26)N(2)O(3) (2+)·2HSO(4) (-), contains one half-cation and one hydrogen sulfate anion. The cation has crystallographically imposed twofold symmetry with the rotation axis passing through the central ether O atom. Hydrogen bonds between the hydr-oxy group and amine H atoms of the cation to two hydrogen sulfate anions link the three ions in a ring motif. A three-dimensional network is accomplished by additional O-H⋯O hydrogen bonds between the anions and by N-H⋯O hydrogen bonds between the cations. Disorder with equally occupied sites affects the H-atom position in the anion.
标题化合物[系统名称：(R,R)-2,4-双-(4-羟基苯基)-N,N'-二甲基-3-氧杂戊烷-1,5-二铵双-(硫酸氢盐)]，C(18)H(26)N(2)O(3)(2+)·2HSO(4)(-)的不对称单元包含半个阳离子和一个硫酸氢根阴离子。阳离子具有晶体学上的二重对称性，旋转轴穿过中心醚O原子。阳离子的羟基和胺H原子与两个硫酸氢根阴离子之间的氢键将这三个离子连接成一个环状结构。通过阴离子之间额外的O-H⋯O氢键以及阳离子之间的N-H⋯O氢键形成三维网络。等占有率的无序现象影响阴离子中H原子的位置。
