来源:ACS PublicationsKinetic resolution polymerization (KRP) of nonpolar conjugated dienes remains a significant challenge because of their flexible coordination modes and subtle reactivity differences between isomers. Herein, we report that by fine-tuning ligand steric environments and metal centers, the KRP of naturally occurring (E,Z)-β-ocimene (E/Z-Oc) was successfully realized by using catalysts 1 and 5 to afford a stereoregular E-homopolymer while simultaneously isolating a Z-isomer with high purity (95.5%). Moreover, complex 1 enabled to polymerize Z-Oc in highly isotactic trans-1,4 selec...
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2026
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来源:ACS PublicationsPropyl gallate (PG) poses a potential threat to human health through dietary exposure. Herein, Eu3+/Y3+ was combined with dual ligands and biomass-derived nitrogen-doped carbon quantum dots (N-CDs) to synthesize multicomponent rare-earth metal–organic gels (N-CDs@Eu0.05Y0.95-DL-MOGs), achieving electrochemiluminescence (ECL) and fluorescence (FL) visual detection of PG. The dual ligands as antenna molecules collectively displace H2O coordination, which sensitizes Eu3+ via energy transfer. Theoretical calculations indicated that Y3+ regulates the molecular orbital energy leve...
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2026
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来源:ACS PublicationsThe oxygen evolution reaction (OER) is a critical yet kinetically sluggish process in water electrolysis for hydrogen generation, owing to its multistep, four-electron transfer. This necessitates the development of efficient catalysts to accelerate the reaction. Herein, Er/Fe-codoped Ni2P supported on nickel foam (Er/Fe−Ni2P/NF) was fabricated via an electrodeposition−phosphorization approach to explore the Er/Fe synergistic effects on OER dynamics. The results demonstrate that Er/Fe codoping effectively modulates the electronic structure of the catalyst and accelerates char...
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2026
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New lanthanide coordination polymers (Ln-CPs) from 2-hydroxyterephthalate: Excited-state intramolecular proton transfer (ESIPT) and sensing capabilities来源:X-MOLEleven new coordination polymers (Ln-CPs), Ln2(htp)3(DMF)4∙x(DMF), where Ln = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er and htp = 2-hydroxyterephthalate were synthesized, structurally characterized and their photoluminescence properties studied. Time-dependent density-functional theory (TD-DFT) calculations were used to explain key differences and similarities in excitation and emission spectra of Ln2(htp)3(DMF)4∙x(DMF) (Ln = La (x = 2...
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2026
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