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1. Synthesis and Reactivity of Functionalized Dimethylgermyl Complexes of the Formula (η 5 -C 5 H 5 )Re(NO)(PPh 3 )(GeMe 2 X); Equilibria Involving the Dimethylgermylene Complex [(η 5 -C 5 H 5 )Re(NO)(PPh 3 )(=GeMe 2 )]• TfO −

   https://doi.org/10.1080/10426509408037445  

   Lee, Kenneth E. ; Gladysz, J. A. ( February 1994 , Phosphorus, Sulfur, and Silicon and the Related Elements)
2. Effect of “X” Ligands on the Photocatalytic Reduction of CO 2 to CO with Re(pyridylNHC-CF 3 )(CO) 3 X Complexes: Effect of “X” Ligands on the Photocatalytic Reduction of CO 2 to CO with Re(pyridylNHC-CF 3 )(CO) 3 X Complexes

   https://doi.org/10.1002/ejic.202000283  

   Shirley, Hunter ; Sexton, Thomas More ; Liyanage, Nalaka P. ; Palmer, C. Zachary ; McNamara, Louis E. ; Hammer, Nathan I. ; Tschumper, Gregory S. ; Delcamp, Jared H. ( May 2020 , European Journal of Inorganic Chemistry)
3. Pyrochlore Rare-Earth Hafnate RE 2 Hf 2 O 7 (RE = La and Pr) Nanoparticles Stabilized by Molten-Salt Synthesis at Low Temperature

   https://doi.org/10.1021/acs.inorgchem.8b02728  

   Pokhrel, Madhab ; Gupta, Santosh K. ; Wahid, Kareem ; Mao, Yuanbing ( January 2019 , Inorganic Chemistry)
4. Compositional Influence of Local and Long-Range Polarity in the Frustrated Pyrochlore System Bi 2−x RE xTi 2 O 7 ( RE = Y 3+ , Ho 3+ )

   https://doi.org/10.1039/D2TC01328B  

   Bailey, Owen ; Husremovic, Samra ; Murphy, Madison ; Ross, Jason ; Gong, Joyce ; Olds, Daniel ; Laurita, Geneva ( July 2022 , Journal of Materials Chemistry C)

   Structural distortions such as cation off-centering are frustrated in the pyrochlore structure due to the triangular arrangement of cations on the pyrochlore lattice. This geometric constraint inhibits a transition from a paraelectric to ferroelectric phase in majority of pyrochlore oxide materials. Few pyrochlore materials can overcome this frustration and exhibit polar crystal structures, and unraveling the origin of such leads to the understanding of polarity in complex materials. Herein we hypothesize that frustration on the pyrochlore lattice can be relieved through A -site doping with rare earth cations that do not possess stereochemically active lone pairs. To assess if frustration is relieved, we have analyzed cation off-centering in various Bi 2−x RE xTi 2 O 7 ( RE = Y 3+ , Ho 3+ ) pyrochlores through neutron and X-ray total scattering. Motivated by known distortions from the pyrochlore literature, we present our findings that most samples show local distortions similar to the β-cristobalite structure. We additionally comment on the complexity of factors that play a role in the structural behavior, including cation size, bond valence, electronic structure, and magnetoelectronic interactions. We posit that the addition of magnetic cations on the pyrochlore lattice may play a role in an extension of the real-space correlation length of electric dipoles in the Bi-Ho series, and offer considerations for driving long-range polarity on the pyrochlore lattice. 

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5. Effect of Oxide Ion Distribution on a Uranium Structure in Highly U-Doped RE 2 Hf 2 O 7 (RE = La and Gd) Nanoparticles

   https://doi.org/10.1021/acs.inorgchem.0c01850  

   Wang, Yuming ; Darapaneni, Pragathi ; Ofoegbuna, Tochukwu ; Gupta, Santosh K. ; Kizilkaya, Orhan ; Mao, Yuanbing ; Dorman, James A. ( October 2020 , Inorganic Chemistry)

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