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Crystal structural and thermochromic luminescence properties modulation by ion liquid cations in bromoplumbate perovskites
Inorganic Chemistry Communications ( IF 4.4 ) Pub Date : 2020-02-01 , DOI: 10.1016/j.inoche.2019.107690 Shan-Shan Yu , Shi-Xiong Jiang , Hui Zhang , Hai-Bao Duan
Inorganic Chemistry Communications ( IF 4.4 ) Pub Date : 2020-02-01 , DOI: 10.1016/j.inoche.2019.107690 Shan-Shan Yu , Shi-Xiong Jiang , Hui Zhang , Hai-Bao Duan
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Abstract The present work deals with three one-dimensional (1D) bromoplumbate perovskites, namely [C4-Mim][PbBr3] (1), [C5-Mim][PbBr3] (2) and [C6-Mim][PbBr3] (3) (where C4-Mim+ = 1-butyl-3-methylimidazolium, C5-Mim+ = 1-pentyl-3-methylimidazolium, C6-Mim+ = 1-hexyl-3-methylimidazolium). 1D inorganic chain is built from corner-sharing PbBr6 octahedron in three compounds. 1 crystallizes in chiral space group P212121 at 100 K. 2 and 3 crystallizes in the same monoclinic crystal system P21/n at 100 K. Three compounds have low melting point compared to reported haloplumbates organic-inorganic perovskites, and the melting point of is 98 °C for 1, 102 °C for 2, and 113 °C for 3. Interestingly, three compounds show multi-band emission and exhibits fascinating thermochromic luminescent properties.
更新日期：2020-02-01
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