The readily available ex-chiral-pool building block (−)-isosteviol was combined with the C3-symmetric platforms hexahydroxytriphenylene and hexaaminotriptycene providing large and rigid molecular architectures. Because of the persistent cavities these scaffolds are very potent supramolecular affinity materials for head space analysis by quartz crystal microbalances. The scaffolds serve in particular as templates for tracing air-borne arenes at low concentration. The affinities of the synthesized materials towards different air-borne arenes were determined by 200 MHz quartz crystal microbalances.
可直接翻译为:
可直接翻译为:“可利用现成的手性源分子(-)异甾醇与C3对称平台六羟基三苯基乙烷和六氨基三苯基螺[4.3.1.1]戊烷相结合,形成大型而刚性的分子结构。由于其持久的空腔,这些支架是非常有效的超分子亲和材料,可通过石英晶体微量天平进行头空间分析。这些支架特别用作追踪低浓度空气中芳烃的模板。合成材料对不同空气中的芳烃的亲和力是通过200 MHz石英晶体微量天平确定的。”