Zhang Jing, Zhu Long Guan
Department of Chemistry, Zhejiang University, Hangzhou 310027, People's Republic of China.
Acta Crystallogr C. 2007 Aug;63(Pt 8):o484-6. doi: 10.1107/S0108270107033008. Epub 2007 Jul 26.
Two 1:1 proton-transfer complexes of sulfobenzoic acids with aromatic amines, namely 4-[2-(4-pyridyl)ethenyl]pyridinium 2-carboxybenzenesulfonate, C(12)H(11)N(2)(+).C(7)H(5)O(5)S(-), (I), and 1,10-phenanthrolin-1-ium 4-carboxybenzenesulfonate dihydrate, C(12)H(9)N(2)(+).C(7)H(5)O(5)S(-).2H(2)O, (II), have very different hydrogen-bonding patterns compared with reported organic sulfobenzoic acid complexes. In (I), two cations and two anions form a four-molecule loop, in which pi-pi interactions occur. In (II), the anions and water molecules form a three-dimensional hydrogen-bonding network, while the cations only act as pendant components. The water molecules play a central role in the formation of the abundant hydrogen-bonding architecture in (II). The relative poorness and richness of hydrogen bonds in (I) and (II), respectively, give rise to novel hydrogen-bonding patterns.
两种磺基苯甲酸与芳香胺形成的1:1质子转移配合物，即4-[2-(4-吡啶基)乙烯基]吡啶鎓2-羧基苯磺酸盐，C(12)H(11)N(2)(+)·C(7)H(5)O(5)S(-)，(I)，和1,10-菲罗啉-1-鎓4-羧基苯磺酸盐二水合物，C(12)H(9)N(2)(+)·C(7)H(5)O(5)S(-)·2H(2)O，(II)，与已报道的有机磺基苯甲酸配合物相比，具有非常不同的氢键模式。在(I)中，两个阳离子和两个阴离子形成一个四分子环，其中存在π-π相互作用。在(II)中，阴离子和水分子形成三维氢键网络，而阳离子仅作为附属成分。水分子在(II)中丰富的氢键结构形成中起核心作用。(I)和(II)中氢键的相对贫乏和丰富分别产生了新颖的氢键模式。
