Results 91 to 100 of about 5,923 (229)

Precision Catalysis in Dehydrogenation of Liquid Organic Hydrogen Carriers: Molecular Structure‐Geometry‐Electronic Interplay for Enhanced Hydrogen Evolution

Carbon Energy, EarlyView.
Atomic‐scale design principles for LOHC dehydrogenation: Tailoring geometric and electronic effects in metal catalysts to bridge the molecular structure of LOHC and dehydrogenation performance. ABSTRACT The advancement of hydrogen‐based energy systems necessitates innovative solutions for safe, efficient hydrogen storage and transportation.
Yongxiao Tuo, Jingying Qu, Huailu Sun, Hongwei Gai, Xiangyuan Qu, Junlun Zhu, Xiaohui Sun, De Chen, Xiang Feng   +8 more
wiley   +1 more source

Recent Strategies Toward Durable and Ion‐Tolerant Transition Metal‐Based Electrocatalysts in Seawater Electrolysis

Carbon Energy, EarlyView.
Recent strategies address these challenges through ion‐specific regulation, encompassing chloride‐tolerant and chloride‐regulating anodes together with cathode designs that suppress OH− accumulation and Mg2+/Ca2+ coupling. This ion‐management‐oriented framework provides general guidelines for achieving stable, selective, and scalable seawater ...
Lina Li, Wenda Zhang, Xinti Yu, Ning Han, Zhangxing Chen, Heng Zhao   +5 more
wiley   +1 more source

Shedding Light on Synthetic Autocatalysis: From Conventional Closed‐Shell Chemistries to Overlooked Open‐Shell Occurrences

Chemistry – A European Journal, EarlyView.
Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley   +1 more source

Photoinduced Electron Transfer (PET) as Key to Accelerate the Cycloreversion Reaction of Arylquadricyclanes

Chemistry – A European Journal, EarlyView.
It is demonstrated that the photoinduced cycloreversion of a methoxynaphthylquadricyclane in the presence of suitable photocatalysts gives quantitatively the corresponding norbornadiene. As this photochromic norbornadiene‐quadricyclane cycle has favorable properties for light energy conversion, this method provides a useful tool for the targeted ...
Julian Felix Maria Hebborn, Heiko Ihmels, Marco Löcker, Thomas Paululat, Robin Schulte   +4 more
wiley   +1 more source

Arene Incorporation and Ring Expansion in the Thermal Decomposition of a Divanadium(III) Complex With Four Bridging Methyl Groups

Chemistry – A European Journal, EarlyView.
Thermolysis of [{VCp*(µ‐CH3)2}2] (Cp* = η5‐C5Me5) in hexane leads to a tetranuclear cube‐type methylidene complex [{VCp*(µ3‐CH2)}4], while in benzenic solvents C6H5R produces the formal insertion of a CH fragment into the six‐membered aromatic ring of a solvent molecule to give trovacene derivatives with η7‐cycloheptatrienyl ligands [VCp*(η7‐C7H6R ...
Adrián Calvo‐Molina, Rodrigo González‐Prieto, Jesús Jover, Adrián Pérez‐Redondo, José Luis Priego, Carlos Yélamos   +5 more
wiley   +1 more source

Synthesis of a π‐Extended Phenazine Diimide Derivative and Characterization of Its Closed‐Shell Reduced States

Chemistry – A European Journal, EarlyView.
In this work, the synthesis and characterization of novel π‐extended phenazine diimides is reported. The derivatives undergo differential reduction to a dihydrophenazine or Meisenheimer form depending on the reaction conditions employed. The outcome of this work highlights the paramount importance of structural design in determining the nature of the ...
Francesco Rigodanza, Beatrice Bartolomei, Ilaria Crea, Paolo Costa, Nicola Demitri, Marcella Bonchio, Maurizio Prato, Jacopo Dosso   +7 more
wiley   +1 more source

Influence of Carboxylate Ligand Variation on Structure, Magnetic Exchange, and Magnetocaloric Performance in Hexanuclear Gd(III) Complexes

Chemistry – A European Journal, EarlyView.
ABSTRACT Hexanuclear cyclic Gd(III) coordination compounds are promising candidates for magnetic and magnetocaloric applications, yet systematic series remain rare due to synthetic challenges. We report the synthesis and characterization of five new complexes with the general formula [Gd(H3bt)(carboxylate)]6, employing four different carboxylate ...
Ondřej František Fellner, Kamil Kotrle, Erik Čižmár, Jana Brázdová, Pavel Štarha, Ján Moncoľ, Radovan Herchel, Ivan Nemec   +7 more
wiley   +1 more source

Bifunctional Photocatalysts: Exploiting Proximity for Enhanced Reaction Performance

Chemistry – A European Journal, EarlyView.
This review covers the application of the bifunctional approach to photocatalysis as a means to attain (enhanced) enantioselectivity, and, more in general, as a strategy to enhance the catalytic performance through an effective use of short‐lived reaction intermediates.
Luigi Dolcini, Daniele Lavelli, Alberto Dal Corso, Luca Pignataro   +3 more
wiley   +1 more source

Dihydroquinazolinones by Titanocene‐Catalyzed Reductive Radical Addition to Quinazolinones

Chemistry – A European Journal, EarlyView.
Tri‐ and tetracyclic dihydroquinazolinones or quinazolinones by titanocene catalysis: A highly diastereoselective and efficient reductive radical addition to quinazolinones enables an unprecedented entry to pharmaceutically relevant dihydroquinazolinones by avoiding the interception of radical intermediates prior to the slow radical addition.
Thomas Heinrichs, Fabian Lang, Konstantin Woitol, Jana Vohn, Andreas Schneider, Andreas Gansäuer   +5 more
wiley   +1 more source

Iron‐Mediated Electrochemical Cyclopropanation of Borodiiodomethane with Alkenes†

Chinese Journal of Chemistry, EarlyView.
This work describes an electrochemical iron‐mediated cyclopropanation of borodiiodomethane with alkenes, resulting in the formation of boro‐substituted cyclopropanes. A key feature of this study is the unexpected discovery that the cathodically generated iron ion coordinates with a biquinoline ligand in situ, facilitating the electrochemical ...
Jie Li, Yingying Pan, Xin Wang, Xuefeng Tan   +3 more
wiley   +1 more source