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Benzene is the simplest and the most basic building block for the construction of π conjugated systems, which are widely used in various fields from fluorescent (FL) dyes to optoelectronic displays. However, achieving the red room-temperature phosphorescence (RTP) from single benzene is still challenging. Utilizing the p-π conjugation, herein, we report a single benzene-based push-pull system with red RTP under ambient condition. One of the phosphors shows maximum RTP peak at 585 nm, along with shoulder peaks at 545 nm, 635 nm, and 700 nm. This architecture is uniquely separate from conventional extended π-conjugated systems and minimizes the requirement for red/near-infrared (NIR) phosphors to a single benzene ring.
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http://dx.doi.org/10.1002/chem.202500598 | DOI Listing |
J Chromatogr A
September 2025
Luoyang R&D Center of Technology, SINOPEC Engineering (Group) Co., Ltd, Luoyang 471003, China. Electronic address:
Conventional one-dimensional gas chromatography methods for gasoline quality monitoring require separate analyses for different component classes, limiting analytical efficiency and unconventional additive detection. This study presents a comprehensive two-dimensional gas chromatography with flame ionization detection (GC × GC-FID) platform enabling simultaneous quantification of regulated components and rapid screening of unconventional additives in a single analytical run. The method achieved excellent agreement with ASTM standards and high repeatability for BTEX (benzene, toluene, ethylbenzene, and xylenes) and oxygenates in gasoline.
View Article and Find Full Text PDFJ Air Waste Manag Assoc
September 2025
Interdisciplinary Science Department, Brookhaven National Laboratory, Upton, NY, USA.
Emission factor data for existing heating appliances are being used to estimate achievable emission reductions with emerging heating technologies. However, the emission factors currently being used for modeling were developed prior to low-sulfur fuel standards and rely on a small number of studies, mostly focusing on steady-state operation. In this work, detailed emission measurements of typical heating equipment fired with natural gas and No.
View Article and Find Full Text PDFJ Am Chem Soc
September 2025
Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Herzl Street 234, Rehovot 7610001, Israel.
Although HCN has been explored extensively as a precursor in the prebiotic synthesis of biological molecules, macroscopic system-level phenomena, originating from reactions of HCN, such as autocatalysis, oscillations, pattern formation, and phase separation have attracted less attention. Autocatalysis and phase separation are particularly interesting in the context of the origin of life because they are sources of self-replication and compartmentalization. In this work, we investigate the reaction between HCN and cysteamine in water, which exhibits both sigmoidal reaction kinetics and the formation of a distinct liquid phase.
View Article and Find Full Text PDFDalton Trans
September 2025
University of Cologne, Faculty for Mathematics and Natural Sciences, Department of Chemistry and Biochemistry, Institute for Inorganic and Materials Chemistry, Greinstrasse 6, D-50939 Köln, Germany.
In the frame of our research aiming to develop efficient triplet-emitting materials, we are exploring the role of the second coordination sphere in enhancing the rigidity of structures and its controlling aspect over the extents of excited state distortions. We thus synthesised three N^C^N cyclometalated complexes [M(L)Cl] (M = Pt, Pd, and Ni), where the two -positions of the pyridyl moieties in 1,3-di(2-pyridyl)-benzene are benzyl substituted (Bn) forming a tight binding pocket for the metal and the Cl ancillary ligand. The molecular structures from single-crystal X-ray diffraction show a markedly distorted square planar M(II) coordination with values of around 0.
View Article and Find Full Text PDFEcotoxicol Environ Saf
August 2025
Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050061, China. Electronic address:
In this study, we combined network toxicology with two-sample Mendelian randomization (MR) to investigate the potential mechanisms by which major components of PM2.5 influence the development of intracranial aneurysms (IAs). We first identified the target genes of six representative PM2.
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