Abstract
By means of hydrothermal reactions, a novel terbium–mercury compound, {[Tb(IA)3(H3O)2]2 n [2n(HgCl4)][n(HgCl5)]}·3nH3O·nH2O (1) (HIA = isonicotinc acid) was prepared and structurally characterized by single-crystal X-ray diffraction. It exhibits a one-dimensional (1D) chain-like structure. Solid-state photoluminescence measurement shows that it display green light emission. The emission bands originate from the characteristic emissions of the 4f electrons intrashell transitions of 5 D 4 → 7 FJ (J = 6, 5, 4, and 3) of the terbium(III) ions in 1. The photoluminescence emission energy transfer mechanism is elucidated by the energy level diagrams of the terbium(III) and isonicotinic acid ligand. Complex 1 has CIE chromaticity coordinates of (0.3177, 0.4440). Solid-state UV/Vis diffuse reflectance spectra reveal that it has a wide optical band gap of 3.03 eV.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
