Fluorogens or luminescence materials that show manipulatable emissive responses toward various external stimuli, such as, temperature, solvent, salt, and pH, hold great promise for some applications. Hydrostatic pressure, as one external stimulus, can manipulate conformational changes in the ground state and subsequent photophysical properties in the excited state of an appropriately designed material. In this study, we controlled not only the chiroptical but also the emissive properties of smart fluorescence materials, namely peptide−pyrene conjugates, and also examined the origins of the optical properties by means of several spectroscopic techniques under high pressure. The location of the chromophores and the appended bulky substituent on the peptide scaffold play pivotal roles in influencing the pressure‐induced properties. The present work gives new perspectives for energy‐related luminescent materials which respond to hydrostatic pressure, providing an attractive alternative to other common external stimuli.

中文翻译：

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可通过静水压控制的智能荧光材料：肽P共轭

对各种外部刺激（例如温度，溶剂，盐和pH值）具有可操纵的发射响应的氟或发光材料，在某些应用中具有广阔的前景。作为一种外部刺激，静水压力可以控制适当设计的材料在基态的构象变化以及在激发态的后续光物理特性。在这项研究中，我们不仅控制了智能荧光材料（即肽-but共轭物）的手性，而且还控制了其发射特性，并且还通过几种在高压下的光谱技术检查了光学特性的起源。发色团的位置和肽支架上附加的庞大取代基的位置在影响压力诱导性质方面起着关键作用。