The development of photoswitches that absorb low energy light is of notable interest due to the growing demand for smart materials and therapeutics necessitating benign stimuli. Donor–acceptor Stenhouse adducts (DASAs) are molecular photoswitches that respond to light in the visible to near-infrared spectrum. As a result of their modular assembly, DASAs can be modified at the donor, acceptor, triene, and backbone heteroatom molecular compartments for the tuning of optical and photoswitching properties. This Perspective focuses on the electronic and steric contributions at each compartment and how they influence photophysical properties through the adjustment of the isomerization energetic landscape. An emphasis on current synthetic strategies and their limitations highlights opportunities for DASA architecture, and thus photophysical property expansion.

中文翻译：

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划分供体-受体 Stenhouse 加合物以进行结构-性质关系分析


由于对智能材料和疗法的需求不断增长，需要良性刺激，因此吸收低能量光的光开关的开发引起了人们的注意。供体-受体 Stenhouse 加合物 （DASA） 是对可见光到近红外光谱中的光做出反应的分子光开关。由于采用模块化组装，DASA 可以在供体、受体、三烯和主链杂原子分子区室进行修饰，以调节光学和光开关特性。该视角侧重于每个隔室的电子和空间贡献，以及它们如何通过调整异构化能量景观来影响光物理特性。强调当前的合成策略及其局限性突出了 DASA 架构的机会，从而突出了光物理特性的扩展。