Results 221 to 230 of about 3,549 (288)

Ion‐Pairing and Counterion Effects in Contemporary Photochemistry

Angewandte Chemie Novit, Volume 2, Issue 2, June 2026.
Ion‐pairing and counterion effects have emerged as fundamental yet underexplored determinants of photochemical behavior. Far from inert, counterions, and Coulombic interactions modulate excited‐state dynamics, quenching efficiencies, emission, and catalytic pathways.
Matthias Schmitz, Christoph Kerzig
wiley   +1 more source

Comparative Phytochemical Analysis of Five South African Bulbine Species Using Chromatography‐Based Methods

Chemistry &Biodiversity, Volume 23, Issue 6, June 2026.
Comprehensive chromatographic and chemometric profiling of five medicinal South African Bulbine species across leaves, rhizomes, and roots reveals 73 metabolites, including species‐specific phenylanthraquinones, flavonoids, and anthocyanins, that serve as reliable chemical markers for species authentication.
Ramoagi T. Segone, Maxleene Sandasi, Efficient Ncube, Weiyang Chen, Bharathi Avula, Kumar Katragunta, Ikhlas A. Khan, Alvaro M. Viljoen   +7 more
wiley   +1 more source

Tar Removal From Biomass‐Derived Syngas via Scrubbing: A Review on Process and Modeling

ChemBioEng Reviews, Volume 13, Issue 3, June 2026.
This review article surveys contaminant formation and removal in biomass‐derived syngas, with a focus on tar scrubbing. It synthesizes evidence from benchmark plants and compares scrubbing configurations and solvents to assess performance and operating limits.
Simon Brinkmann, Thomas Grützner, Bernhard C. Seyfang   +2 more
wiley   +1 more source

Bridged Boranoanthracenes: Precursors for Free Oxoboranes through Aromatization-Driven Oxidative Extrusion. [PDF]

J Am Chem Soc
Deri S, Feller M, Panda S, Blank B, Iron MA, Diskin-Posner Y, Avram L, Shimon LJW, Mondal R, Gnaim S.   +9 more
europepmc   +1 more source

Push–Pull Phenazine Fluorophores: Substituent‐Position Effects on Emission and Intermolecular Organization Modulated by Hydrogen Bonding and Molecular Symmetry

ChemistryEurope, Volume 4, Issue 6, June 2026.
Push–pull substitution activates fluorescence in the weakly emissive phenazine scaffold, producing photostable green‐to‐red emitters via a one‐step annulation. A systematic comparison of positional isomers reveals that the Etter‐rule‐directed hydrogen‐bonding patterns modulate the emission wavelength and crystal packing, while the molecular symmetry ...
Hiroki Sato, Masato Kudo, Jun Kumagai, Kohei Tsujimura, Nanami Hoshino, Yuito Abe, Hayato Sakai, Hiroshi Katagiri   +7 more
wiley   +1 more source

Regioselective access to B-N Lewis pair-functionalized anthracenes: mechanistic studies and optoelectronic properties. [PDF]

Chem Sci
Zuo J, Lalancette RA, Prokopchuk DE, Jäkle F.   +3 more
europepmc   +1 more source

Photophysics of a Tetraazaperylene Ligand and Its Heteroleptic Cu(I) Complex

ChemPhotoChem, Volume 10, Issue 6, June 2026.
π‐Extension with the tape ligand strongly red‐shifts the metal‐to‐ligand charge transfer transition of Cu(I) diimine‐diphosphine complexes far into the visible, enabling one of the most bathochromic absorptions reported for this class. The synthesis and characterization of Cutape, a heteroleptic Cu(I) complex featuring a π‐extended tetraazaperylene ...
Johannes P. Zurwellen, Volkan Caliskanyürek, Oliver Lange, Anastasiia Riabchunova, Florian Doettinger, Kurt J. Haseloff, Christian Kleeberg, Nicolas Meitinger, Sven Rau, Michael Karnahl, Stefanie Tschierlei   +10 more
wiley   +1 more source

Rotaxanes with integrated photoswitches: design principles, functional behavior, and emerging applications. [PDF]

Beilstein J Org Chem
Matsushima JE, Khushbu, Abdulsalam Z, Conthagamage UNK, García-López V.   +4 more
europepmc   +1 more source

How to Stabilize Large Soluble (Hetero-)Acenes. [PDF]

J Am Chem Soc
Freudenberg J, Bunz UHF.
europepmc   +1 more source

From Triplet to Twist: The Photochemical E/Z-Isomerization Pathway of the Near-Infrared Photoswitch peri-Anthracenethioindigo. [PDF]

Angew Chem Int Ed Engl
Hartinger M, Herm M, Schüßlbauer C, Köttner L, Guldi D, Dube H, Müller C.   +6 more
europepmc   +1 more source