Source: School of Chemistry
Written by: School of Chemistry
Edited by: Wang Dongmei

Metal-organic frameworks (MOFs) have intriguing and tunable photophysical properties owing to predesignable structures from well-defined metal and/or organic chromophores. In recent study, Prof. Mei Pan and Cheng-Yong Su's group at School of Chemistry, Sun Yat-sen University proposed a one-pot two-step assembly strategy for engineering dual-functional coordination interspace where two kinds of organic linkers are segregated in predefined positions. This design endows the three-dimensional coordination framework with unidirectional deformation character, leading to an orientation-dependent and pressure-responsive photoluminescence color change. For the first time, unique piezofluorochromic anisotropism is achieved and can be accumulated stepwise and visualized by a metalorganic framework single crystal, providing a basic model for application in stimuli-responsive photoluminescence sensing, barcoding, signal switching, harvesting, and magnifying micro-devices.

The result has recently been published in Chem, a sister journal to Cell (Chem, 2018, 4, 2658-2669).

Links to the paper: https://doi.org/10.1016/j.chempr.2018.08.025