Vacuum-Induced Reversible Phase Transformation of Rare-Earth Difluoroacetates Insights into Structural Evolution, Kinetics, and Luminescence Response 来源：ACS PublicationsRare-earth difluoroacetate Eu1–xTbx(dfa)3(H2O)2·H2O (dfa = CF2HCOO) exhibits a pressure-dependent crystalline-to-semicrystalline phase transformation similar to that reported for the trifluoroacetate series. This transformation occurs when pressure is decreased below 100 mTorr and is driven by removal of crystallization water and aquo ligands; both types of water molecules participate in hydrogen-bond networks sustain...
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2025
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来源：ACS PublicationsMalonate ligands demonstrate versatility for intercalating metal complexes into layered rare-earth hydroxides (LREHs), enabling controlled tuning of coordination geometry and composition. As a proof of concept, a series of copper(II) malonate complexes with various substituents was synthesized and successfully intercalated into layered yttrium, europium, or terbium hydroxide at room temperature via anion-exchange reactions. The copper content in these hybrid materials increased in the order: butylmalonate X-ray spectroscopy (EDX), IR, UV–vis, and electron paramagnetic r...
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2025
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Dual-Modified C–Ce–Mn2O3 Heterostructured Anode Catalytic Layer with Ultrastable OER Performance in Concentrated H2SO4 for Sustainable Nonferrous Metal Electrodeposition来源：ACS PublicationsMn2O3 emerges as a viable anode catalytic layer candidate for nonferrous metal electrodeposition, yet its industrial adoption is hindered by acid-triggered structural collapse and Mn3+ overoxidation. Here, we demonstrate a heterointerfacial engineering strategy that integrates carbon scaffolding with Ce-doped Mn2O3 (C–Ce–Mn2O3), achieving high stability in concentrated sulfuric acid (160 g·L–1) under agg...
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2025
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Alkali Metal Substitution-Induced Structural Transformation for RbREP2Se6 (RE = Gd, Tb, Dy) with Second-Harmonic Generation Responses来源：ACS PublicationsRare-earth (RE) chalcogenides have been extensively studied as infrared nonlinear optical (NLO) materials, and they demonstrate high potential as candidates with integrated performances; however, the subgroup of RE chalcophosphates has been rarely studied. Herein, three new quaternary RE selenophosphates, RbGdP2Se6 (1), RbTbP2Se6 (2), and RbDyP2Se6 (3), were synthesized using the reactive flux RbI-assisted RExOy–B–Se solid-state method. They cr...
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2025
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