Photochromic and luminescent switchable iodoargentate hybrids directed by solvated lanthanide cations
Pengfei Hao1, Weipin Wang, Junju Shen
1Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Linfen 041004, China. haopengfei_2015@126.com yunlongfu@sxnu.edu.cn.
Abstract:
Four iodoargentate hybrids, [Eu(DMSO)8]2[Ag2I5][Ag5I8] (1), [Eu(DMSO)8][Ag7I10] (2), [Tb(DMSO)8]2[Ag2I5][Ag5I8] (3) and [Tb(DMSO)8][Ag6I9] (4) (DMSO = dimethyl sulfoxide), have been rationally synthesized, which display simultaneous photochromic and luminescent switchable performances. Photochromism is due to the photolysis of iodoargentate anions and the consequent generation of Ag0 particles with surface plasmon resonance (SPR) absorption. Meanwhile, luminescent switchable performance is ascribed to intermolecular fluorescence resonance energy transfer (FRET) from fluorescent solvated lanthanide cations to photochromic iodoargentate anions.
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