title: Ionothermal synthesis of novel Pb-OH-Cu-X (X = Cl, Br and I) quaternary heterometallic frameworks with tunable optical properties.
abstract: Reported herein is the new application of ionothermal synthesis for inorganic optical materials. Under ionothermal conditions with different imidazolium ionic liquids, novel quaternary heterometallic frameworks based on [Pb4(OH)4] cubane and [CuCl4] or [CuBr4] chains and [Cu2I6] binuclear clusters have been successfully produced. Simple chlorine, bromine and iodine replacement leads to not only the space group change (tetragonal I41/acd for 1 and 2, and orthorhombic Fddd for 3) but also the topological net transformation (8,12-net for 1 and 2, and 6,6-net for 3). Notably, compounds 1, 2 and 3 all show tunable solid-state semiconducting and luminescence properties.
authors.affiliation: Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi 710062, P. R. China. zhaiqg@snnu.edu.cn.
authors.forename: Ying-Ying
authors.initials: YY
authors.lastname: Xue
authors.forename: Li-Xia
authors.initials: LX
authors.lastname: Zhang
authors.forename: Shu-Ni
authors.initials: SN
authors.lastname: Li
authors.forename: Yu-Cheng
authors.initials: YC
authors.lastname: Jiang
authors.forename: Man-Cheng
authors.initials: MC
authors.lastname: Hu
authors.forename: Quan-Guo
authors.initials: QG
authors.lastname: Zhai