Results 31 to 40 of about 934,865 (121)

Fluorescence Color Changes of Molecular Aggregation Processes of Difluoroboron β‐Diketonate Complexes With Heterocyclic Ring During Solvent Evaporation

open access: yesChemPhotoChem, Volume 10, Issue 9, September 2026.
Fluorescence visualization captures liquid‐like clusters (LLCs) during crystallization of furan‐ and thiophene‐based β‐diketonate–BF2 complexes. Enhanced dipole moments induce competition between H‐ and J‐type stacking, broadening emission, and suppressing the formation of a distinct redshift band.
Fuyuki Ito   +4 more
wiley   +1 more source

New Approach to Unsymmetric Curcuminoids and Their BF2‐derivatized Fluorophores

open access: yesChemistrySelect, Volume 10, Issue 42, November 10, 2025.
The synthesis of asymmetric curcuminoids can be successfully achieved through a ketal intermediate, which is then condensed with one aldehyde, followed by hydrolysis and complexation with BF3·THF. Further condensation with a different aldehyde produces an asymmetric BF2‐curcuminoid derivative.
Rosario Tavera‐Hernández   +8 more
wiley   +1 more source

Dual-Emissive Difluoroboron Naphthyl-Phenyl β‑Diketonate Polylactide Materials: Effects of Heavy Atom Placement and Polymer Molecular Weight

open access: yes, 2015
Luminescent materials are important for imaging and sensing. Aromatic difluoroboron β-diketonate complexes (BF2bdks) are classic fluorescent molecules that have been explored as photochemical reagents, two-photon dyes, and oxygen sensors.
William A. Morris (1322058)   +4 more
core   +1 more source

Illuminating Tau Aggregates: Multiscale Approaches for Detection, Imaging, and Understanding

open access: yesAggregate, Volume 6, Issue 10, October 2025.
This review presents recent advances in molecular imaging of tauopathies, focusing on tau aggregation mechanisms, structural polymorphism, and imaging strategies. It highlights the development of tau‐selective fluorescent probes and PET tracers and explores emerging techniques such as cryo‐EM and super‐resolution imaging, offering a multiscale ...
Kaustubh R. Bhuskute   +2 more
wiley   +1 more source

Effects of α‑Substitution on Mechanochromic Luminescence and Aggregation-Induced Emission of Difluoroboron β‑Diketonate Dyes

open access: yes, 2016
Though the effects of arene substituents on difluoroboron β-diketonate (BF2bdk) mechanochromic luminescence (ML) are known, substitution at the α carbon of the dioxaborine ring has yet to be carefully investigated.
William A. Morris (2850995)   +2 more
core   +1 more source

Aromatic Difluoroboron β‑Diketonate Complexes: Effects of π‑Conjugation and Media on Optical Properties

open access: yes, 2016
Aromatic difluoroboron β-diketonate complexes (BF2bdks) are classic fluorescent molecules that have been explored as photochemical reagents, two-photon dyes, and oxygen sensors. To gain a better understanding of their emissive properties in both solution
Guoqing Zhang (151441)   +6 more
core   +1 more source

Organic Mechanochromic Luminescent Materials with Self‐Recovering Characters

open access: yesChemPlusChem, Volume 89, Issue 12, December 2024.
This concept article summarizes recent advancements in self‐recovering mechanochromic luminescent organic materials, which spontaneously restore their original emission colors even under ambient conditions after mechanical stimulus. The reported materials are categorized according to the central core structures, and several strategies to induce and ...
Shotaro Nakamura   +2 more
wiley   +1 more source

Evidence for Non-Innocence of a β-Diketonate Ligand

open access: yes, 2020
β-Diketonates, such as acetylacetonate, are amongst the most common bidentate ligands towards elements across the entire periodic table and are considered wholly redox-inactive in their complexes.
Laura Voigt   +13 more
core   +1 more source

Recent Developments in Halide Perovskite Nanocrystals for Indirect X‐ray Detection

open access: yesAdvanced Materials Technologies, Volume 9, Issue 20, October 21, 2024.
Perovskite nanocrystals act as scintillators under X‐ray illumination with different conversion yield, stability, or decay times and outperform commercial materials, depending on their composition, host matrix, and luminescence process. Besides the lead halide perovskites, there are lead‐free alternatives providing self‐trapped exciton emission ...
Olexiy Balitskii   +2 more
wiley   +1 more source

An expeditious method to synthesize difluoroboron complexes of β-keto amides from β-keto nitriles and BF3·OEt2

open access: yes, 2017
An expeditious and convenient method has been developed to synthesize difluoroboron complexes of β-keto amides from β-keto nitriles and BF3·OEt2.
Jiaxi Xu, Chuangchuang Xu
core   +1 more source

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