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1. Spectroscopic and electrochemical characterization of a Pr ⁴⁺ imidophosphorane complex and the redox chemistry of Nd ³⁺ and Dy ³⁺ complexes

   https://doi.org/10.1039/D2DT00758D  

   Rice, Natalie T.; Popov, Ivan A.; Carlson, Rebecca K.; Greer, Samuel M.; Boggiano, Andrew C.; Stein, Benjamin W.; Bacsa, John; Batista, Enrique R.; Yang, Ping; La Pierre, Henry S. (May 2022, Dalton Transactions)

   The molecular tetravalent oxidation state for praseodymium is observed in solution via oxidation of the anionic trivalent precursor [K][Pr 3+ (NP(1,2-bis- t Bu-diamidoethane)(NEt 2 )) 4 ] (1-Pr(NP*)) with AgI at −35 °C. The Pr 4+ complex is characterized in solution via cyclic voltammetry, UV-vis-NIR electronic absorption spectroscopy, and EPR spectroscopy. Electrochemical analyses of [K][Ln 3+ (NP(1,2-bis- t Bu-diamidoethane)(NEt 2 )) 4 ] (Ln = Nd and Dy) by cyclic voltammetry are reported and, in conjunction with theoretical modeling of electronic structure and oxidation potential, are indicative of principal ligand oxidations in contrast to the metal-centered oxidation observed for 1-Pr(NP*). The identification of a tetravalent praseodymium complex in in situ UV-vis and EPR experiments is further validated by theoretical modeling of the redox chemistry and the UV-vis spectrum. The latter study was performed by extended multistate pair-density functional theory (XMS-PDFT) and implicates a multiconfigurational ground state for the tetravalent praseodymium complex. 

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2. Why is it so difficult to realize Dy ⁴⁺ in as‐synthesized BaZrO ₃ ?

   https://doi.org/10.1111/jace.18427  

   Hoang, Khang; Latouche, Camille; Jobic, Stéphane (June 2022, Journal of the American Ceramic Society)
3. Correlation between Cation Distribution and Magnetic and Dielectric Properties of Dy ³⁺ -Substituted Fe-Rich Cobalt Ferrite

   https://doi.org/10.1021/acs.inorgchem.2c03125  

   Kharat, Shahaji P.; Gaikwad, Swati K.; Kambale, Rahul C.; Kolekar, Yesh D.; Ramana, C. V. (December 2022, Inorganic Chemistry)
4. Tuning white light emission using single-component tetrachroic Dy ³⁺ metallacrowns: the role of chromophoric building blocks

   https://doi.org/10.1039/D4SC00389F  

   Salerno, Elvin V; Eliseeva, Svetlana V; Petoud, Stéphane; Pecoraro, Vincent L (May 2024, Chemical Science)

   The fine tuning of CIE coordinates was demonstrated in a series of molecular tetrachroic chromophores, Dy³⁺/Ga³⁺metallacrowns, through modifications of the symmetry around Dy³⁺and the nature of the organic ligands. 

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5. Luminescence of Triple Perovskite Ba₃MgTa₂O₉:Dy³⁺ Up to 1100 °C

   https://doi.org/10.1021/acs.jpcc.4c02983  

   Imer, Marcos R; Afugu, Amos; Liu, Zhen-Fei; Rabuffetti, Federico A (October 2024, The Journal of Physical Chemistry C)