Journal
INORGANIC CHEMISTRY
Volume 57, Issue 18, Pages 11626-11632Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.8b01739
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- Jiangxi Province Education Department and Technology [GB170637]
- State Laboratory of Structural Chemistry, FJIRSM, CAS [20180008]
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Three novel Ln-Hg complexes [Ln(H2O)(2)(mu-IA)(3)Hg3Br6](n) (Ln = Pr (1), Nd (2), and Er (3); HIA is isonicotinic acid) are synthesized and characterized. They feature three-dimensional (3-D) motifs. Solid-state UV/vis diffuse reflectance spectroscopy found that their band gaps are 4.91, 4.59, and 2.68 eV. It is found that lanthanide ions could adjust the band structures of semiconductors. Their photoluminescence comes from their characteristic emissions of D-1(2) -> H-3(4) of Pr3+, E-7(7/2) -> S-4(3/2) and F-4(3/2)-> I-4(9/2) of Nd3+, and I-4(15/2) -> F-4(7/2) and I-4(15/2) -> S-4(3/2) of Er3+. The CIE chromaticity coordinate is (x = 0.5726, y = 0.4206), (x = 0.7268, y = 0.2732), and (x = 0.2923, y = 0.4317). Their magnetization susceptibility totally obeys the Curie-Weiss equation with antiferromagnetic performances.
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