A stimuli responsive linear hydrogen bonding motif, capable of in situ protonation and deprotonation, has been investigated. The interactions of the responsive hydrogen bonding motif with complementary partners were examined through a series of ¹H NMR experiments, revealing that the recognition preference of the responsive hydrogen bonding motif in a mixture can be switched between two states.

中文翻译：

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pH 可切换的三重氢键基序。

已经研究了能够原位质子化和去质子化的刺激响应线性氢键基序。通过一系列¹ H NMR 实验检查了响应性氢键基序与互补伙伴的相互作用，揭示了混合物中响应性氢键基序的识别偏好可以在两种状态之间切换。