Results 51 to 60 of about 4,123 (167)

Regioisomerism Rewires Optical and Ion Recognition Properties in Azulenylsumanenes—Curved Non‐Alternant π‐Systems

Chemistry – A European Journal, EarlyView.
Regioisomerism rewires orbital topology and electronic polarity in curved non‐alternant π‐systems, switching both optical response and alkali metal ion recognition from Na+ to Rb+ selectivity. ABSTRACT Herein, we explore the fundamental concept of combining the molecular curvature of a molecular fragment of buckminsterfullerene with the pronounced ...
Jakub Cyniak, Anna Mazur, Bartłomiej Pigulski, Hidehiro Sakurai, Artur Kasprzak   +4 more
wiley   +1 more source

Three-component reaction of azulene, aryl glyoxal and 1,3-dicarbonyl compound for the synthesis of various azulene derivatives

, 2020
A three-component reaction of an azulene, an aryl glyoxal and a 1,3-dicarbonyl compound has been elaborated to access a series of azulene derivatives. Some of these azulene-containing adducts were further subjected to post-MCR transformations to assemble
Kashtanov, Stepan, Gong, Jing, Amandykova, Sagadat, Yu, Jiafeng, Gimnkhan, Aidana, Huang, Jianjun, Pereshivko, Olga P., Peshkov, Vsevolod A., Peshkov, Anatoly A.   +8 more
core   +1 more source

Modular Synthesis of Di‐ and Triazadibenzoazulenes by a Cross‐Coupling/Cycloisomerization Strategy

European Journal of Organic Chemistry, EarlyView.
Two series of regioisomeric di‐ and triazadibenzoazulenes were prepared from dihalogenated imidazo[1,2‐a]pyridines and imidazo[1,2‐a]pyrazines. Imidazo[1,2‐a]pyridines and imidazo[1,2‐a]pyrazines are important nitrogen‐containing heterocycles with applications in medicinal and materials chemistry.
Karyna Kulyk, Artyom Petrosyan, Karsten Paul Lüdtke, Jonas Surkau, Martin Köckerling, Peter Ehlers, Peter Langer   +6 more
wiley   +1 more source

Electrospun conducting polymers: recent trends and the transition towards a sustainable future

Polymer International, EarlyView.
This review discusses the electrospinning of conducting polymers, detailing procedures, fibrous morphologies, improved properties, applications in electronics, and challenges, while outlining future directions for nanofibre‐based devices in various fields.
Xenofon Karagiorgis, Sofia Sandhu, Peter J. Skabara, Ravinder Dahiya   +3 more
wiley   +1 more source

Azulene

, 2007
Inelastic Neutron Scattering spectrum of Azulene, C₁₀H₈, measured on the TOSCA ...
B.S. Hudson, Syracuse University, New York, USA
core   +1 more source

[Au4(dppb)3]2+ – A Planar Gold Cluster with Bright Excitation Wavelength Dependent Emission

Small, EarlyView.
The first planar [Au4]2+ cluster with a deltoid geometry displays red to near‐infrared emission tunable from 700 to 918 nm. A quantum yield of 17% is observed at 770 nm upon 375 nm excitation. Excitation‐wavelength‐dependent shifts in emission reveal the involvement of multiple excited states, highlighting unprecedented photophysical versatility in ...
Markus Strienz, Jakob Keck, Wolfgang Leis, Jonas L. Hiller, Claudio Schrenk, Christoph Kertzscher, Michael Seitz, Marcus Scheele, Alfred J. Meixner, Andreas Schnepf   +9 more
wiley   +1 more source

Oral Ulcerations and Phytotherapy: Potential Role of Helichrysum Essential Oil—A Literature Review

Oral Diseases, EarlyView.
ABSTRACT Background Recurrent aphthous stomatitis (RAS) is a common yet therapeutically challenging chronic inflammatory disease of the oral mucosa, characterized by recurrent, painful ulcerations that substantially affect patients' quality of life. Objective This review summarizes current evidence on phytotherapy in RAS, with particular focus on the ...
Ruzica Ivkovic, Reka Antic, Avisek Majumder, Suravi Majumder, Dragana Stanisic   +4 more
wiley   +1 more source

Calix[4]azulene

, 2016
Azulene reacts with paraformaldehyde in the presence of florisil to give excellent yields of calix[4 ...
Denise A. Colby (1527715), Timothy D. Lash (828621)   +1 more
core   +1 more source

9-(3,5-Dimethylbenzylidene)-8-(3,5-dimethylphenyl)-1,3,5,7-tetraphenyl-2,4,7,8-tetrahydro-4,7-methanoazulene acetonitrile disolvate

IUCrData, 2018
The title Diels–Alder product, C52H44·2CH3CN, was obtained in trace quantity as the `endo' isomer during the synthesis of 1,3-diphenyl-6-(3,5-dimethylphenyl)fulvene.
Sonya K. Adas, Andrew J. Peloquin, Scott T. Iacono, Gary J. Balaich   +3 more
doaj   +1 more source

Cycloazulenylen

Angewandte Chemie, Volume 138, Issue 37, 7 September 2026.
Ein ausschließlich aus Azulen‐Untereinheiten aufgebauter gespannter Makrocyclus mit der Bezeichnung [6]Cycloparaazulenylen ([6]CPA) wird vorgestellt. Der Makrocyclus weist für ein Azulensystem eine bemerkenswert kleine HOMO–LUMO‐Energielücke, eine durch die Ringspannung hervorgerufene bathochrome Verschiebung der Absorption sowie ein ungewöhnliches ...
Clara Douglas, Josefine Sprachmann, David Dunlop, Joël Schlecht, Jörg Neudörfl, Tommy Wachsmuth, Julian Frost, Tomáš Slanina, Oliver Dumele   +8 more
wiley   +1 more source