来源：ACS PublicationsHigh-pressure synthesis provides unique pathways to materials with unprecedented structures and properties. Here we report the synthesis and structural characterization of novel rare-earth (La, Sm, Gd, Dy) chlorides, chloride carbides, and oxychloride phases obtained due to complex chemical reactions in diamond anvil cells after laser heating of rare-earth metals and NaCl at pressures of 39–127 GPa and temperatures of 2500–2800 K. Synchrotron single-crystal X-ray diffraction analysis allowed us to solve previously unknown crystal structures of binary (La2Cl, LaCl, LaCl3, DyC...
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2026
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来源：ACS PublicationsMIREIII-based nitrate-bridged double perovskite-type hybrid materials are an emerging class of multifunctional materials that exhibit intriguing physical properties. While the synthesis and structural phase transitions of these compounds, including (TMA)2NaPr(NO3)6 (TMA+ = tetramethylammonium cation, 1), have been recently established, their potential in electronic applications remains largely unexplored. Herein, we focus on the functional characterization of 1, which exhibits a reversible phase transition at Ttr = 306 K, dynamic dielectric response, and semiconducting behav...
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2026
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来源：X-MOLLanthanides (Ln) offer rich and otherwise unusual chemistry, which includes their redox behavior, ligand coordination, diverse quantum phenomena, etc. Unlike the lighter elements, these f-block elements could exhibit nonlinear trends in various chemical and physical properties across the series with a noticeable break often being observed in the central atom gadolinium (Gd). This popular notion of “Gd break” has been challenged and banished by researchers in the past, making this as an ever-debated issue in the chemical fraternity. In this Letter, we examine the solvation behavior of d...
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2026
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来源：ACS PublicationsMXenes have become one of the most versatile families of two-dimensional (2D) materials due to their high conductivity, hydrophilicity, and remarkable electrochemical performance. This has stimulated intense efforts to design and synthesize MXenes, including structurally unique in-plane ordered 2D MXenes called i-MXenes. Here, we have synthesized the quaternary rare earth (RE)-based i-MAX phase (Mo2/3Er1/3)2AlC using an arc melting method, and the corresponding 2D i-MXene was then obtained through a LiF/HCl soft etching process. Literature studies have shown that Al and the ...
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2026
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