Three-π-component cocrystals, composed of pyridinium or quinolinium cations, p-toluenesulfonate anion acting as a hydrogen-bond acceptor, and mainly dihydroxy phenol derivatives acting as hydrogen-bond donors, were systematically prepared by the solution-growth methods. Among the combination of five ion-pairs and seven hydrogen-bond donors, 23 cocrystals were found at least. By adding tetrathiafulvalene (TTF), four-π-component cocrystals were also obtained.

中文翻译：

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杂芳族阳离子、对甲苯磺酸根阴离子和芳香族氢键供体多元晶体的制备和结构

采用溶液生长法系统地制备了由吡啶鎓或喹啉鎓阳离子、对甲苯磺酸根阴离子作为氢键受体、主要以二羟基苯酚衍生物作为氢键供体组成的三π组分共晶。在5个离子对和7个氢键供体的组合中，至少发现了23个共晶。通过添加四硫富瓦烯（TTF），还获得了四π组分共晶。