Kaman Ondřej, Smrčok Lubomír, Gyepes Róbert, Havlíček David
Department of Cell Biology, Faculty of Science, Charles University, Viniční 7, 128 40 Prague 2, Czech Republic.
Acta Crystallogr C. 2012 Feb;68(Pt 2):o57-60. doi: 10.1107/S0108270111054874. Epub 2012 Jan 6.
The triclinic structure of the title compound, C(6)H(8)N(+)·H(2)PO(4)(-), with three symmetry-independent structural units (Z' = 3), is formed of separate organic and inorganic layers alternating along the b axis. The building blocks of the inorganic layer are deformed H(2)PO(4) tetrahedra assembled into infinite ladders by short and hence strong hydrogen bonds. The anilinium cations forming the organic layer are not hydrogen bonded to one another, but they are anchored by four N-H···O crosslinks between the dihydrogen phosphate chains of adjacent ladders. Two H atoms of each -NH(3) group then form one normal and one bifurcated N-H···O hydrogen bond to the P=O oxygens of two tetrahedra of one chain, while the third H atom is hydrogen bonded to the nearest O atom of an adjacent chain belonging to another dihydrogen phosphate ladder.
标题化合物C(6)H(8)N(+)·H(2)PO(4)(-)的三斜结构具有三个独立的结构单元（Z' = 3），由沿b轴交替排列的单独有机层和无机层组成。无机层的结构单元是变形的H(2)PO(4)四面体，通过短而强的氢键组装成无限长链。形成有机层的苯胺阳离子彼此之间没有氢键作用，但通过相邻链的磷酸二氢链之间的四个N-H···O交联键固定。每个-NH(3)基团的两个H原子然后与一条链的两个四面体的P=O氧原子形成一个正常的和一个分叉的N-H···O氢键，而第三个H原子与属于另一个磷酸二氢链的相邻链的最近O原子形成氢键。
