Four novel lanthanide(III) coordination complexes based on 3,4,5-trifluorobenzeneseleninic acid

Zhang, Weiqiang; Zhang, Rufen; Zhang, Qingfu; Zhang, Shao‐Liang; Ru, Jing; Li, Qianli; Ma, Chunlin

doi:10.1016/j.jssc.2018.11.035

Cited by 6 publications

(1 citation statement)

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“…[15][16][17] Meanwhile, the 1,10-phenanthroline was added as an additional ligand to preclude the coordination of solvent molecules and reduce the non-radiation deactivation, thereby improving the luminescence performance and stability of constructed complexes. [18][19][20][21] Therefore, using 4-fluorophenylselenoacetic acid as the main ligand, 1,10-phenanthroline as the auxiliary ligand, three isostructural lanthanide complexes [Ln 2 L 6 (phen) 2 ] (Ln=Eu (1), Tb (2), Dy (3), L=4-fluorophenylselenoacetate) have been synthesized and characterized. The photoluminescence properties of Eu(III) complex (1) and Tb(III) complex (2) and the magnetism of Dy(III) complex (3) have been studied emphatically in the solid state.…”

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confidence: 99%

Synthesis, structures, photoluminescence and magnetic properties of three dinuclear lanthanide(III) complexes derived from 4‐fluorophenylselenoacetic acid

Zhang

et al. 2021

Zeitschrift anorg allge chemie

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Three novel dinuclear lanthanide(III) complexes [Ln 2 L 6 (phen) 2 ] (Ln=Eu III (1), Tb III (2), Dy III (3)), derived from 4-fluorophenylselenoacetic acid and 1,10-phenanthroline, have been synthesized and characterized by elemental analysis, IR, TGA, powder X-ray diffraction and single-crystal X-ray diffraction analysis. Single crystal X-ray diffraction reveal they are isostructural and crystallize in the monoclinic crystal system, space group P2(1)/c. The investigations on luminescent properties of Eu(III) complex 1 and Tb(III) complex 2 exhibit the characteristic emissions of Eu III ( 5 D 0 ! 7 F 0-4 ) and Tb III ( 5 D 4 ! 7 F 6-3 ), and the corresponding luminescent lifetimes are 1.52 and 1.10 ms, respectively. Temperature-dependent photoluminescence studies show the emission intensities and lifetimes for both complexes decrease upon increasing temperature, which indicates complexes 1 and 2 have the potential for sensing temperature. The magnetic studies reveal that Dy(III) complex 3 exhibits weak antiferromagnetic interactions and slow magnetic relaxation behavior.

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