Results 121 to 130 of about 306,832 (290)
Chemistry–Methods, EarlyView.Bimesophasic lyotropic chiral systems are prepared from polypeptide and polyacetylene helical polymers in organic solvents. Combined with spatially resolved 2H nD NMR experiments, they provide a novel and original tool to collect independent sets of anisotropic quadrupolar data, with potential applications in chemistry dedicated to spectral ...
Thomas Julien +4 more
wiley +1 more source
The applications of single‐atom alloys in electrocatalysis: Progress and challenges
SmartMat, Volume 4, Issue 1, February 2023., 2023 Single‐atom alloys (SAAs) with peculiar electronic structures, well‐defined active sites, and maximum atom utilization are promising to replace traditional noble metal electrocatalysts. Representative strategies to prepare SAAs including wet chemistry, galvanic replacement, dealloying, and atomic layer deposition are introduced.
Yumin Da +5 more
wiley +1 more source
Reactions of 1,4‐Diborinine Derivatives with CO2
ChemPhysChem, EarlyView.The reaction of CO2 with seven molecules featuring a 1,4‐diborinine central ring is studied by means of density functional theory calculations. The selected systems present five‐ and six‐membered aza rings surrounding 1,4‐diborinine. The computed reactivity trends and origin of regioselectivity are quantitatively analyzed with the activation strain ...
Maxime Ferrer +3 more
wiley +1 more source
Nonperturbative Saddle Point for the Effective Action of Disordered and Interacting Electrons in 2D [PDF]
, 2000 Claudio Chamon, Eduardo R. Mucciolo
openalex +1 more source
Three-dimensional higher-order saddle-point-induced flatbands in Co-based kagome metals
Physical Review ResearchThe saddle point (Van Hove singularity) exhibits a divergent density of states in two-dimensional systems, leading to fascinating phenomena such as strong correlations and unconventional superconductivity, yet it is seldom observed in three-dimensional ...
Hengxin Tan +4 more
doaj +1 more source
Vibrational Partition Functions from Bond Order and Populations Relationships
ChemPhysChem, Accepted Article.We present a novel method that computes harmonic vibrational partition functions from bond orders and popu‐ lation relationships (QBOP). The QBOP model first computes ZPEs and net vibrational bond energies from our earlier zero‐point energies from bond orders and populations (ZPE‐BOP) model and then maps these variables to calculate the harmonic ...
Barbaro Zulueta, John Andrew Keith
wiley +1 more source
Existence of solutions for a vector saddle point problem [PDF]
, 2000 K.R. Kazmi, Suhel Ahmad Khan
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The Local Bifurcation of Food web Prey-Predator Model involving fear and anti-Predator behavior
Ibn Al-Haitham Journal for Pure and Applied SciencesIn this paper, the conditions under which the occurrence of the local bifurcation (such as saddle-node (SN), transcritical (TC), and pitchfork (PT)) of all stable points of a food web model have been investigated.
Hanna Rasool Hadi, Azhar Abbas Majeed
doaj +1 more source
ChemPhotoChem, EarlyView.Strain‐promoted, double alkyne‐azide 1,3‐dipolar cycloadditions make dibenzo‐cycloocta‐bis‐triazoles which display a form of chirality that to date has been overlooked. The enantiomers can be resolved, with their remarkably high configurational stability being exemplified through a chiral fluorescent example.
Sebastian Pim +7 more
wiley +1 more source
The Depositional Record, EarlyView.Abstract We very much appreciate the comments of André; Pestilho and Agustin Mors on our paper discussing the early diagenesis of the Pre‐salt carbonates (Barra Velha Formation, BVF) in the Santos Basin (Gomes et al., 2024). We welcome the opportunity to respond and to clarify our interpretations concerning dolomite formation, diagenetic timing and ...
João Paulo Borges Gomes +6 more
wiley +1 more source