Abstract

A cadmium crystalline material, namely, (MV)n[Cd(FDC)2]n (H2FDC ​= ​2,5-furandicarboxylic acid; MV ​= ​methyl viologen) has been successfully constructed and fully characterized by single-crystal X-ray structure determination, IR spectra, elemental analyses and powder X-ray diffractions. The compound features a 2D layer structure, in which in situ generated MV2+ cations located in the interlayer. The MV-containing compound offers a type of electron transfer system, which endows the material with reversible photochromism activities originated from photo-induced electron transfer process. Moreover, the material could sense MA vapor with naked-eye colour change in a shorted time.

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