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1. High-Resolution X-ray Photoelectron Spectroscopy of Organometallic (C 5 H 4 SiMe 3 ) 3 Ln III and [(C 5 H 4 SiMe 3 ) 3 Ln II ] 1– Complexes (Ln = Sm, Eu, Gd, Tb)

   https://doi.org/10.1021/jacs.1c06980  

   Huh, Daniel N. ; Bruce, Jared P. ; Ganesh Balasubramani, Sree ; Ciccone, Sierra R. ; Furche, Filipp ; Hemminger, John C. ; Evans, William J. ( October 2021 , Journal of the American Chemical Society)
2. X-ray crystallographic, luminescence and NMR studies of phenacyldiphenylphosphine oxide with the Ln( iii ) ions Sm, Eu, Gd, Tb and Dy

   https://doi.org/10.1039/c7dt02678a  

   G. Leach, Erin ; Shady, Justin R. ; Boyden, Adam C. ; Emig, Anne-lise ; Henry, Alyssa T. ; Connor, Emily K. ; Staples, Richard J. ; Schaertel, Stephanie ; Werner, Eric J. ; Biros, Shannon M. ( January 2017 , Dalton Transactions)

   We report here the characterization in solution (NMR, luminescence, MS) and the solid-state (X-ray crystallography, IR) of complexes between phenacyldiphenylphosphine oxide and five Ln( iii ) ions (Sm, Eu, Gd, Tb, Dy). Four single crystal X-ray structures are described here showing a 1 : 2 ratio between the Ln 3+ ions Eu, Dy, Sm and Gd and the ligand, where the phosphine oxide ligands are bound in a monodentate manner to the metal center. A fifth structure is reported for the 1 : 2 Eu(NO 3 ) 3 -ligand complex showing bidentate binding between the two ligands and the metal center. The solution coordination chemistry of these metal complexes was probed by 1 H, 13 C and 31 P NMR, mass spectrometry, and luminescence experiments. The title ligand has the capability to sensitize Tb 3+ , Dy 3+ , Eu 3+ and Sm 3+ leading to metal-centered emission in solutions of acetonitrile and methanol and in the solid state. 

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3. Efficient White Polymer Light‐Emitting Diode (WPLED) Based on Single‐Component Eu 3+ –Tb 3+ ‐Containing Metallopolymer

   https://doi.org/10.1002/adom.201900776  

   Fu, Guorui ; Liu, Lin ; Li, Wentao ; He, Yani ; Miao, Tiezheng ; Lü, Xingqiang ; He, Hongshan ( August 2019 , Advanced Optical Materials)

   Despite the excellent physical properties of single‐component Eu³⁺–Tb³⁺‐containing metallopolymers, the development of their flexible white polymer light‐emitting diodes (WPLEDs) for portable full‐color flat displays remains a formidable challenge. Herein, the WPLEDs from a metallopolymerPoly(NVK‐co‐2‐co‐7)are reported, in which [Eu(DBM)₃(4‐vp‐PBI)] (2) and [Tb(tba‐PMP)₃(4‐vp‐PBI)] (7) with different localized circumstances are grafted into poly(N‐vinyl‐carbarzole) (PVK). In this design, both Dexter and Förster energy transfers occur, which endow a photoluminescent quantum yield up to 22.3% of the straightforward high‐quality white‐lights. Contributing from the stepwise alignment of frontier molecular orbitals ofPoly(NVK‐co‐2‐co‐7)as the emitting layer in combination with CBP‐ and BCP‐assisted carrier‐transports, a reliable WPLED with the record‐renewed electroluminescent performance (L^Max= 388.0 cd m⁻², η_c^Max= 31.1 cd A⁻¹, η_p^Max= 15.0 lm W⁻¹, η_EQE^Max= 18.1%, and weak efficiency‐roll‐off) among previous organo‐Ln³⁺‐based white organic light‐emitting diodes/WPLEDs is achieved. This finding renders a single‐component Eu³⁺–Tb³⁺‐containing metallopolymers a potential new platform to cost‐effective flexible WPLEDs for practical applications.

    

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4. Photocytotoxicity of Oligothienyl‐Functionalized Chelates That Sensitize Ln III Luminescence and Generate 1 O 2

   https://doi.org/10.1002/chem.202001568  

   Johnson, Katherine R. ; Lombardi, Vincent C. ; Bettencourt‐Dias, Ana ( September 2020 , Chemistry – A European Journal)
5. Hydrothermal Synthesis of New Iodates Ln 2 (IO 3 ) 3 (IO 4 ) (Ln = La, Nd, Pr) Containing the Tetraoxoiodate(V) Anion: Creation of Luminescence Properties by Doping with Eu, Dy, and Tb

   https://doi.org/10.1021/acs.cgd.1c00545  

   Aslani, Ceren Kutahyali ; Klepov, Vladislav V. ; Aslani, Mahmoud A. ; Loye, Hans-Conrad zur ( August 2021 , Crystal Growth & Design)