Results 151 to 160 of about 11,727 (238)

Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa, Jildimara de Jesus Santana, Viviane de Oliveira Campos, Felipe Fernandes Barbosa, Gregory S. Patience   +4 more
wiley   +1 more source

Sustainable Hydrogen Production by Glycerol and Monosaccharides Catalytic Acceptorless Dehydrogenation (AD) in Homogeneous Phase

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
Sustainable hydrogen production can be obtained from hydogen‐rich biomass‐derived organic molecules through Acceptorless Dehydrogenation (AD) reactions. Glycerol and sugars are available in large quantities from industry and can be successfully used as substrates in AD protocols, in the presence of tailored, selective, easily tunable and thermally ...
Sylwia Kostera, Luca Gonsalvi
wiley   +1 more source

Investigation of the La-Al-H and La-Si-H Systems at High Pressures. [PDF]

Inorg Chem
Beyer DC, Nunes Ferreira P, Lucrezi R, Eleno LTF, Kohlmann H, Heil C, Sannemo Targama M, Baran V, Bhat S, Farla R, Spektor K, Häussermann U.   +11 more
europepmc   +1 more source

Remote Migratory Reductive Arylation of Unactivated Alkenes Enabled by Electrochemical Nickel Catalysis

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
we have developed an electrochemical Ni−H catalyzed arylation coupling method of unactivated alkenes with aryl halides. The method displays broad functional group tolerance and proceeds under very mild conditions. Furthermore, aryl chlorides were also compatible substrates in this catalytic system. This conversion holds significant implications for the
Chao Xu, Ru‐Han A, Xiao‐Feng Wu
wiley   +1 more source

Recent Developments in the Field of Air‐Stable Nickel(0) Precatalysts for Cross‐Coupling Reactions

European Journal of Inorganic Chemistry, EarlyView.
The development of bench‐stable Ni(0) sources aims to replace air‐sensitive [Ni(COD)2] (cod = cycloocta‐1,5‐diene) with easy‐to‐handle alternatives. Through a targeted ligand design, using electron‐deficient dienes, carbenes, and fluorophosphines, researchers have achieved air‐ and moisture‐tolerant complexes that show high catalytic activity in cross ...
Franziska Flecken, Schirin Hanf
wiley   +1 more source

Digital materials ecosystem: from databases to AI agents for autonomous discovery. [PDF]

Chem Sci
Zhang D, Jia X, Wang Y, Liu H, Wang Q, Jang SH, Shah D, Ye S, Tran HB, Li H.   +9 more
europepmc   +1 more source

Chemoselectivity and Enantioselectivity in the Conjugate Reduction of Cinnamate Esters and a Tandem Conjugate Reduction‐Ester Hydrogenation Using Manganese Catalysts

European Journal of Organic Chemistry, EarlyView.
An improved synthesis of a manganese catalyst used for hydrogenation of ketones, esters and imines is reported. The catalyst has now been found to effect tandem conjugate reduction‐ester hydrogenations with very low amounts of allylic alcohol by‐products.
José A. Fuentes, Matthew L. Clarke
wiley   +1 more source

The path to room-temperature superconductivity: A programmatic approach. [PDF]

Proc Natl Acad Sci U S A
Prasankumar RP, Julian M, Hutcheon M, Heil C, Deng L, Basov D, Chu CW, Comin R, Kim P, Meredig B, Pickard C, E Pickett W, Strobel T, Wolf S, Zurek E, Myhrvold N.   +15 more
europepmc   +1 more source

Synthesis and Biological Profile of Substituted Pyrrolidinyl Carboxamides for Acyl‐ACP Thioesterase Inhibition

European Journal of Organic Chemistry, EarlyView.
The work outlined herein covers a series of novel herbicidal lead structures that possess a pyrrolidinyl pyrazole carboxamide scaffold as a key structural feature, carrying further substituted benzyl side chains. Based on scaffold hopping approaches from known fungicidal and herbicidal compounds and utilizing an optimized synthetic approach, a broader ...
Elisabeth Asmus, Martin Annau, Neanne Alnafta, David M. Barber, Guido Bojack, Birgit Bollenbach‐Wahl, Ralf Braun, Ronald W. Brown, Luke R. Churchman, Christine Dörnbrack, Andrew Earl, Tyler Fahrenhorst‐Jones, Jörg Freigang, Claudia Hartfiel, Ines Heinemann, Arnim Köhn, Bernd Laber, Michael C. McLeod, Catherine S. Meister, Gudrun Lange, Luka Posa, Shaun Rees, Dirk Schmutzler, Anna M. Reingruber, Jens Frackenpohl   +24 more
wiley   +1 more source

Crystal Structure Investigations of LaNi₂H_<i>x</i> (<i>x</i> = 0 and 3.08 with Metal Atoms in AlB₂ Units) and LaNiH_1.01. [PDF]

Inorg Chem
Sato T, Utsumi R, Nakahira Y, Saitoh H, Honda T, Orimo SI.   +5 more
europepmc   +1 more source