Haloplumbate Nanochains Templated by Quaternary Phosphorus:Good Water Stabilities,Thermochromic Luminescence and Photocurrent Responses  

作　　者：CUI Jian-Hao ZHANG Wen-Ting ZHENG Hui-Dong LI Hao-Hong 崔鉴豪;张文婷;郑辉东;李浩宏(College of Chemical Engineering,Fuzhou University,Fuzhou 350108,China;College of Chemistry,Fuzhou University,Fuzhou 350108,China;Fujian Engineering Research Center of Advanced Manufacturing Technology for Fine Chemicals,Fuzhou University,Fuzhou 350108,China)

机构地区：[1]College of Chemical Engineering,Fuzhou University,Fuzhou 350108,China [2]College of Chemistry,Fuzhou University,Fuzhou 350108,China [3]Fujian Engineering Research Center of Advanced Manufacturing Technology for Fine Chemicals,Fuzhou University,Fuzhou 350108,China

出　　处：《Chinese Journal of Structural Chemistry》2021年第6期775-784,685,共11页结构化学（英文）

基　　金：the National Natural Science Foundation of China(No.22078065)。

摘　　要：Two triphenylmethylphosphonium/haloplumbate hybrids,i.e.,[(PPh3Me)2(Pb2I6)∙CH3CN]n(1)and[(PPh3Me)(PbBr3)]n(2),have been prepared,in which the(PbX3)nn-nanochains built from face-sharing PbX6 octahedra are surrounded by organic templates to assemble the core-shell quantum well.Besides,C−H…πinteractions among Ph3PMe+cations can also be detected,which give rise to the 2-D organic layer of 1 and 1-D chain for 2.The good water stabilities could be induced by the strong C−H…πinteractions,which can deter the hydrolysis reaction.The energy band gaps of this work mainly derive from the charge transfer of organic components,but their luminescence stems from the inorganic(PbX3)nn-nanochains with co-existence of free excitons and self-trapped excitons.At temperature lower than 117 K,strong quantum confinement will rule out the free excitons,and self-trapped excitons will dominate,resulting in red-shift luminescence.Moreover,effective and repeatable photocurrent responses can be found in these hybrids.

关 键 词：organic-inorganic hybrid haloplumbate quaternary phosphorus photoluminescence photocurrent response 

分 类 号：TB383.1[一般工业技术—材料科学与工程]