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Synthesis, crystal structure, photoluminescence and semiconductive properties of a novel terbium complex

Xiao-Niu FANG, School of Chemistry and Chemical Engineering, Institute of Applied Chemistry, Jinggangshan University, Ji'an, Jiangxi, P.R. China, 343009, Xiu-Guang YI, Bo-Xiao TANG, Ren-Yun KUANG, Ya-Ping XU, School of Chemistry and Chemical Engineering, Institute of Applied Chemistry, Jinggangshan University, Ji'an, Jiangxi, P.R. China, 343009, School of Chemistry and Chemical Engineering, Institute of Applied Chemistry, Jinggangshan University, Ji'an, Jiangxi, P.R. China, 343009, School of Chemistry and Chemical Engineering, Institute of Applied Chemistry, Jinggangshan University, Ji'an, Jiangxi, P.R. China, 343009, School of Chemistry and Chemical Engineering, Institute of Applied Chemistry, Jinggangshan University, Ji'an, Jiangxi, P.R. China, 343009
2019 Revue roumaine de chimie  

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A new terbium complex, [Tb 2 (phenoxyacetic acid) 6 (H 2 O) 3 ] n •nH 2 O (1) with a two-dimensional (2D) layered structure, has been prepared via a hydrothermal reaction and structurally characterized by single-crystal X-ray diffraction technique. Compound 1 crystallizes in the space group Pī of the triclinic system with two formula units in one cell. Each terbium ion in compound 1 is coordinated by nine oxygen atoms to yield a monocapped tetragonal antiprism geometry. Photoluminescence
more » ... measured with solid-state sample of compound 1 demonstrate that the emission bands at 491, 545, 588 and 620 nm are observed from the 4f intrashell transitions of the Tb 3+ ions. These bands are originated from the 5 D 4 excited state to the 7 F 6 , 7 F 5 , 7 F 4 and 7 F 3 states, respectively. Solid-state diffuse reflectance spectrum reveals the existence of a wide optical band gap of 4.24 eV of compound 1.
doi:10.33224/rrch/2019.64.6.09 fatcat:3jo75y4cx5corijx6n7mwx6zmi
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Xiao-Niu FANG, School of Chemistry and Chemical Engineering, Institute of Applied Chemistry, Jinggangshan University, Ji'an, Jiangxi, P.R. China, 343009, Xiu-Guang YI, Bo-Xiao TANG, Ren-Yun KUANG, Ya-Ping XU, School of Chemistry and Chemical Engineering, Institute of Applied Chemistry, Jinggangshan University, Ji'an, Jiangxi, P.R. China, 343009, School of Chemistry and Chemical Engineering, Institute of Applied Chemistry, Jinggangshan University, Ji'an, Jiangxi, P.R. China, 343009, School of Chemistry and Chemical Engineering, Institute of Applied Chemistry, Jinggangshan University, Ji'an, Jiangxi, P.R. China, 343009, School of Chemistry and Chemical Engineering, Institute of Applied Chemistry, Jinggangshan University, Ji'an, Jiangxi, P.R. China, 343009. "Synthesis, crystal structure, photoluminescence and semiconductive properties of a novel terbium complex." Revue roumaine de chimie 64.6 (2019) 529-534