光致变色
光电开关
光异构化
二芳基乙烯
螺吡喃
材料科学
分子
纳米技术
光化学
化学
异构化
有机化学
催化作用
作者
Gina R. Wilson,Kyoung Chul Park,Grace C. Thaggard,Corey R. Martin,Austin R. Hill,Johanna Haimerl,Joong‐Soo Lim,Buddhima K. P. Maldeni Kankanamalage,Brandon J. Yarbrough,Kelly L. Forrester,Roland A. Fischer,Perry J. Pellechia,Mark D. Smith,Sophya Garashchuk,Natalia B. Shustova
标识
DOI:10.1002/ange.202308715
摘要
Abstract Cooperative behavior and orthogonal responses of two classes of coordinatively integrated photochromic molecules towards distinct external stimuli were demonstrated on the first example of a photo‐thermo‐responsive hierarchical platform. Synergetic and orthogonal responses to temperature and excitation wavelength are achieved by confining the stimuli‐responsive moieties within a metal–organic framework (MOF), leading to the preparation of a novel photo‐thermo‐responsive spiropyran‐diarylethene based material. Synergistic behavior of two photoswitches enables the study of stimuli‐responsive resonance energy transfer as well as control of the photoinduced charge transfer processes, milestones required to advance optoelectronics development. Spectroscopic studies in combination with theoretical modeling revealed a nonlinear effect on the material electronic structure arising from the coordinative integration of photoresponsive molecules with distinct photoisomerization mechanisms. Thus, the reported work covers multivariable facets of not only fundamental aspects of photoswitch cooperativity, but also provides a pathway to modulate photophysics and electronics of multidimensional functional materials exhibiting thermo‐photochromism.
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