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首页> 外文期刊>Chemistry: A European journal >Supramolecular sensing with phosphonate cavitands
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Supramolecular sensing with phosphonate cavitands

机译：膦酸酯空洞分子的超分子传感

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摘要

Phosphonate cavitands are an emerging class of synthetic receptors for supramolecular sensing. The molecular recognition properties of the third-generation tetraphosphonate cavitands toward alcohols and water at the gas-solid interface have been evaluated by means of three complementary techniques and compared to those of the parent mono- and diphosphonate cavitands. The combined use of ESI-MS and X-ray crystallography defined precisely the host-guest association at the interface in terms of type, number, strength, and geometry of interactions. Quartz crystal microbalance (QCM) measurements then validated the predictive value of such information for sensing applications. The importance of energetically equivalent multiple interactions on sensor selectivity and sensitivity has been demonstrated by comparing the molecular recognition properties of tetraphosphonate cavitands with those of their mono- and diphosphonate counterparts.
机译：膦酸酯空洞体是一类新兴的用于超分子传感的合成受体。已经通过三种互补技术评估了第三代四膦酸酯空洞分子在气固界面上对醇和水的分子识别特性，并将其与母体单膦酸酯和二膦酸盐空洞分子进行了比较。 ESI-MS和X射线晶体学的结合使用，根据相互作用的类型，数量，强度和几何形状，精确地定义了界面处的主客体关联。石英晶体微天平（QCM）测量随后验证了此类信息对传感应用的预测价值。通过比较四膦酸酯空洞分子与单膦酸酯和二膦酸酯对应物的分子识别特性，已经证明了能量等效的多重相互作用对传感器选择性和灵敏度的重要性。

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