low concentrations and formed many superorganogels, whereas the hydrogenous gelators (1H, 3H) showed much poorer gelling performance. An X-ray analysis of the single crystals of two reference compounds (16I, 16H) reveals that the unusual C–I···O XB interaction is responsible for this difference. The results of spectroscopic examinations (XRD, SEM, 1H NMR, and UV) are well consistent with those of single-crystal
为了研究卤素键(XB)对单组分有机凝胶体系胶凝的影响,提出了一个新的5-
碘-1 H -
1,2,3-三唑和1 H -
1,2,3-三唑家族设计并合成了胶凝剂。
碘化胶凝剂(1I,3I)在低浓度下使各种溶剂胶凝并形成许多超有机凝胶,而含氢胶凝剂(1H,3H)显示出差得多的胶凝性能。对两种参考化合物(16I,16H)的单晶进行X射线分析发现,这种异常与C–I··O XB的异常相互作用有关。光谱检查结果(XRD,
SEM,11 H NMR和UV与单晶分析的结果非常一致。在XB相互作用和弱π-π相互作用的指导下,1I和3I在凝胶状态下自组装成六方柱状聚集体,而1H和3H在CH-π相互作用的驱动下形成层状凝胶结构体。在相同浓度下,
碘凝胶的机械性能比氢凝胶的机械性能好得多。来自1I的凝胶以
高氯酸盐的形式对Hg 2 +,Cu 2 +,Zn 2+和Mg 2+的刺激做出响应,而来自1H的凝胶对Hg选择性响应。2+只。