Leith Gabrielle A, Martin Corey R, Mayers Jacob M, Kittikhunnatham Preecha, Larsen Randy W, Shustova Natalia B
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29210, USA.
Chem Soc Rev. 2021 Apr 7;50(7):4382-4410. doi: 10.1039/d0cs01519a. Epub 2021 Feb 17.
In this review, the dependence of the photophysical response of chromophores in the confined environments associated with crystalline scaffolds, such as metal-organic frameworks (MOFs), covalent-organic frameworks (COFs), and molecular cages, has been carefully evaluated. Tunability of the framework aperture, cavity microenvironment, and scaffold topology significantly affects emission profiles, quantum yields, or fluorescence lifetimes of confined chromophores. In addition to the role of the host and its effect on the guest, the methods for integration of a chromophore (e.g., as a framework backbone, capping linker, ligand side group, or guest) are discussed. The overall potential of chromophore-integrated frameworks for a wide-range of applications, including artificial biomimetic systems, white-light emitting diodes, photoresponsive devices, and fluorescent sensors with unparalleled spatial resolution are highlighted throughout the review.
在本综述中，已仔细评估了与晶体支架（如金属有机框架（MOF）、共价有机框架（COF）和分子笼）相关的受限环境中发色团的光物理响应依赖性。框架孔径、腔微环境和支架拓扑结构的可调性显著影响受限发色团的发射光谱、量子产率或荧光寿命。除了主体的作用及其对客体的影响外，还讨论了发色团的整合方法（例如作为框架主链、封端连接体、配体侧基或客体）。在整个综述中强调了发色团整合框架在广泛应用中的总体潜力，包括人工仿生系统、白光发光二极管、光响应器件以及具有无与伦比空间分辨率的荧光传感器。
