摘要
An unprecedented 4f-5d material(La6Hg5Br26)[4(HgBr2)](2Br)(1)was syn-thesized by hydrothermal reactions and structurally characterized by single-crystal X-ray diffraction method.Complex 1 crystallizes in the Pbam space group of orthorhombic system with a=13.0980(10),b=13.6650(9),c=28.010(2)?,V=5013.4(6)?^3,Br36Hg9La6,Mr=5515.53,Z=2,Dc=3.613 g/cm^3,μ(MoKα)=29.457 mm^–1 and F(000)=4598.Compound 1 is characteristic of a two-dimensional(2D)layered structure.The photoluminescent measurements with solid-state samples reveal that compound 1 has a strong emission in the green region of light spectrum.It has remarkable CIE chromaticity coordinates of(0.2499,0.3589).A wide optical band gap of 3.41 eV is discovered by the solid-state UV/vis diffuse reflectance spectrum.The variable-temperature magnetic susceptibility obeys the Curie-Weiss law(cm=c/(T–q))with C=2.48 K and a negative Weiss constantθ=–169.07 K as revealed by the magnetic measurements,indicating the existence of an antiferromagnetic interaction in compound 1.
作者
LIN Wei-Sheng
CHEN Wen-Tong
林维晟;陈文通(Department of Ecological and Resources Engineering,Fujian Key Laboratory of Eco-industrial Green Technology,Wuyi University,Wuyishan 354300,China;Institute of Applied Chemistry,School of Chemistry and Chemical Engineering,Jiangxi Province Key Laboratory of CoordinationChemistry,Jinggangshan University,Ji’an 343009,China;State Key Laboratory of Structural Chemistry,Fujian Institute of Researchon the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China)
基金
This project was supported by the NNSFC(21361013)
NSF of Fujian Province(2018J01447)
Jiangxi Provincial Department of Education’s Item of Science and Technology(GJJ170637)
the open foundation(20180008)of State Key Laboratory of Structural Chemistry。
