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Achieving precise deuterium labeling in pharmaceutical compounds presents a formidable challenge in medicinal chemistry. Herein, we introduce an innovative approach for circumventing the use of costly and environmentally unfriendly photocatalysts, enabling precise decarboxylative deuteration under mild conditions. Mechanistic investigation unveils the dual functionality of the tailored photoredox-active acid (PAC) with a photosensitive amino protecting group, serving both as a reactant and as a catalyst. This methodology not only represents a sustainable solution, eliminating the need for additional transition-metal catalysts, but also showcases exceptional regio- and chemoselectivity, successfully producing a versatile range of deuterated amines and alkanes, including complex peptides, terpenoids, and steroidal natural products. This breakthrough marks a significant advancement in the realm of photoinduced autocatalytic reaction methodologies. [ABSTRACT FROM AUTHOR]

Correction for 'Catalyst-free decarboxylative deuteration using tailored photoredox-active carboxylic acids' by Shuai Liu et al., Green Chem., 2024, https://doi.org/10.1039/D4GC01134A. [ABSTRACT FROM AUTHOR]

Oxide interfaces provide a fertile ground for new forms of magnetic textures that arise from different symmetry constraints, proximity effects, and charge transfer. Here, a room‐temperature spin glass state stabilized in heterostructures of the ferromagnetic metallic oxide La2/3Sr1/3MnO3 (LSMO) and the layered Lan+1NinO3n+1 (L‐LNO) is reported. Electron energy loss spectra and depth‐profile X‐ray photoelectron spectroscopy reveal the interfacial electron transfer from Mn3+ to localized Ni3+ states. Density functional theory calculations indicate that charge transfer drives the enhancement of ferromagnetic exchange interaction in the nickelate, leading to the formation of local magnetic order. The room temperature spin‐glass state in this artificially engineered LSMO/L‐LNO bilayer structure affords opportunities for designing emergent topological spin textures and spintronic devices. [ABSTRACT FROM AUTHOR]

The interplay between magnetism and the topological band in metamagnetic materials has attracted researchers' attentions because these materials exhibit novel phenomena, such as the anomalous Hall effect (AHE) and quantum AHE. Here, the magnetotransport of DyPtBi single crystals in out‐of‐plane and in‐of‐plane magnetic field configurations is investigated. The results show a large unconventional anomalous Hall signal in the canted Type II antiferromagnetic state, indicating the existence of significant Berry curvature. This signal evolves into a large hump with DyPtBi entering the paramagnetic state and persists up to temperatures that are much higher than TN. Out‐of‐plane and in‐of‐plane measurements indicate that a larger unconventional Hall signal is observed at certain θ and ϕ angles. A giant planar anomalous Hall angle (AHA) of up to 30% is achieved in DyPtBi, which is comparable to that in a typical ferromagnetic Weyl semimetal. The results show that DyPtBi is a good platform for investigating the unconventional AHE and other novel physical properties in various potentially topologically nontrivial phases due to the interplay between canted antiferromagnetic structures and topology. [ABSTRACT FROM AUTHOR]

The double perovskite type oxides Sr2FeMoO6 (SFMO) and Sr1.90Eu0.10FeMoO6 (SEFMO) have been prepared by standard solid phase reaction method at high temperature. The X-ray powder diffraction results show that the two samples were single phase with tetragonal system and have the 14/m space group .The order of SFMO and SEFMO was 91.8(6)% and 86.1(7)%, respectively. The Curie temperature (Tc) was 364 and 362 K, respectively. The ratio of Fe3+/Fe2+ and Mo3+/Mo6+ in SFMO was 1.806589 and 4.073547 respectively, while that of SEFMO was 1.646088 and 2.634589. [ABSTRACT FROM AUTHOR]

The double perovskite type oxides Sr2FeMoO6 (SFMO) and Sr1.90Eu0.10FeMoO6 (SEFMO) have been prepared by standard solid phase reaction method at high temperature. The X-ray powder diffraction results show that the two samples were single phase with tetragonal system and have the 14/m space group .The order of SFMO and SEFMO was 91.8(6)% and 86.1(7)%, respectively. The Curie temperature (Tc) was 364 and 362 K, respectively. The ratio of Fe3+/Fe2+ and Mo3+/Mo6+ in SFMO was 1.806589 and 4.073547 respectively, while that of SEFMO was 1.646088 and 2.634589. [ABSTRACT FROM AUTHOR]