Synthesis, crystal structures and sensitivity to sunlight of two Ag (I) photoresponsive metal–organic complexes
作者:Hai-Juan Du、Wen-Li Zhang、Chao-Hai Wang、Yao Li、Yun-Yin Niu、Hong-Wei Hou
DOI:10.1016/j.inoche.2015.02.005
日期:2015.4
Two Ag (I) photoresponsive metal-organic complexes have been constructed from viologen derivatives 1, 1 ''-[1, n-phenylene-bis(methylene)]bis-4,4'-bipyridinium-bisbromide (n = 2 and 3) cationic ligands and silver bromide upon slow self-assembly at room temperature. They are characterized by single crystal X-ray diffraction, powder X-ray diffraction, thermal gravimetric analysis (TGA), UV-vis, IR and ESR spectra. Compound 1 is a 3D folding framework and compound 2 contains a 10 inorganic chain constructed by (AgBr3)(2-) polyhedral units. In addition, the photochromic behaviors of compounds 1 and 2 were also investigated, and they show different and obvious fast photoresponse rate under sunlight. (C) 2015 Elsevier B.V. All rights reserved.