Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Two stable, purely organic luminogens exhibit both mechano- (ML) and photoluminescence (PL) with dual fluorescence-phosphorescence emissions at room temperature. Careful analysis of the crystal structures, coupled with theoretical calculations, demonstrate that room-temperature phosphorescence and ML properties are strongly related to molecular packing. In particular, the formation and fracture of molecular dimers with intermolecular charge-transfer properties has a significant effect on intersystem crossing, as well as excited triplet state emissions, in both PL and ML processes.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/anie.201708119 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Hydrazone fluorophores with acidochromism, mechanochromism, and solvatochromism for moisture detection.
Spectrochim Acta A Mol Biomol Spectrosc
August 2025
Key Laboratory of Acupuncture-Moxibustion and Tuina Intelligent Equipment of Chongqing Administration of Traditional Chinese Medicine, School of Pharmacy, Chongqing Three Gorges Medical College, Chongqing 404120, PR China. Electronic address:
Water monitoring in organic solvents is crucial but remains challenging. Karl Fischer titration can reach ∼1 ppm but relies on toxic reagents and bench-top equipment; most fluorescent probes, in contrast, cover <10 % (v/v) water and provide only a single read-out. Here we introduce two triphenylamine functionalized hydrazone probes, DHB and DHF, that overcome these limitations by simultaneously translating water stimuli into three independent, quantitative fluorescence signals-wavelength, intensity and RGB color-within a single measurement.
View Article and Find Full Text PDFEncapsulating Pt NCs with an AIE effect into a metal-organic framework as a novel fluorescence nanoprobe for discriminatively detecting bisphosphonate drugs.
Anal Bioanal Chem
August 2025
Department of Analytical Chemistry, School of Science, China Pharmaceutical University, Nanjing, 211198, Jiangsu, People's Republic of China.
Fluorescent metal organic frameworks (FMOFs) constructed by encapsulating aggregation-induced emission luminogens (AIEgens) into frameworks have garnered increasing attention due to their ability to overcome the aggregation-caused quenching (ACQ) effect of traditional fluorescent materials such as organic dyes, quantum dots, and up-conversion nanoparticles. However, conventional AIEgens usually contain aromatic groups that may pose potential health risks. Additionally, the quality of bisphosphonates (BPs), first-line treatment drugs in skeletal-related diseases, is critical to assure their effectiveness and safety.
View Article and Find Full Text PDFDesign and transformation of ACQphores into AIEgens: toward MOF-based advanced sensing applications.
Dalton Trans
August 2025
Department of Chemistry, Sardar Vallabhbhai National Institute of Technology (SVNIT), Surat-395007, Gujarat, India.
Aggregation-induced emission (AIE) has emerged as a groundbreaking optoelectronic phenomenon that overcomes the limitations of aggregation-caused quenching (ACQ), enabling the development of highly light-emitting substances with broad applications. This overview presents a detailed exploration of AIE and ACQ, discussing their historical background, fundamental definitions, and working mechanisms, particularly the restriction of intramolecular rotations (RIRs), vibrations (RIVs), and motions (RIMs). Significant focus is placed on the transformation strategies for converting ACQ-active fluorophores (ACQphores) into AIE-active luminogens (AIEgens).
View Article and Find Full Text PDFAIEgen-based porous organic polymer-Ag nanoparticles hybrids with coreaction accelerator amplification and covalent rigidification-enhanced electrochemiluminescence for aflatoxin M1 detection.
Food Chem
August 2025
Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, Chongqing Engineering Laboratory of Nanomaterials & Sensor Technologies, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China. Electronic address: x
Developing new high-performance electrochemiluminescence (ECL) emitters is a continuous hotspot. Herein, a novel AgNP-decorated porous organic polymer (AgNPs@ETTBC-BPyDAN-POP, BPyDAN = 2,2'-([2,2'-bipyridine]-5,5'-diyl)diacetonitrile) nanocomposite with coreaction accelerator amplification and covalent rigidification-enhanced ECL was prepared. AgNPs@ETTBC-BPyDAN-POP nanocomposite exhibited excellent ECL performance, not only because abundant AIE-active 4',4″',4″″',4″″″'-(ethene-1,1,2,2-tetrayl)tetrakis(([1,1'-biphenyl]-4-carbaldehyde)) (ETTBC) luminogens were covalently assembled and rigidified into ETTBC-BPyDAN-POP network, which diminished radiationless transition, but also because AgNPs functioned as coreaction accelerators that expedited the generation of coreactant radicals, which in-situ react with adjacent ETTBC intermediates, thereby producing more ETTBC excited states for significantly enhancing the ECL emission.
View Article and Find Full Text PDFA Sensitive Ratiometric Thermometer Constructed by AIEgen-Based Mixed Lanthanide MOF for Intracellular Temperature Mapping.
Adv Sci (Weinh)
August 2025
Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, 350108, China.
Accurate temperature sensing at the subcellular level is of great significance for gaining insights into a wide range of biological processes. Aggregation-induced emission (AIE) is a promising photophysical phenomenon in which the luminescence intensity is highly related to the degree of restriction of intramolecular motions. By combining AIE luminogen (AIEgen) ligands with mixed lanthanide ions, an AIEgen-based mixed lanthanide MOF (LnMOF) can be synthesized.
View Article and Find Full Text PDF