Results 131 to 140 of about 60,540 (292)
Advanced Science, EarlyView.Open‐shell type radical anions with stable doublet emission have been synthesized that feature aromaticity engineering, through‐space charge‐transfer (TSCT), and electro(fluoro)chromism. ABSTRACT We report the doublet emissive open‐shell radical anions, where the N‐annulated perylene diimide (PDIN–H) is functionalized with aromatic rings.
Jeongyoon Kim +4 more
wiley +1 more source
Structural variation and transmission of substituent effects
, 2015 In our studies on the transmission of electronic substituent effects in Ph-G-X molecules [1], where G is a framework (or spacer) and X a variable substituent, we use a phenyl group (Ph) as a probe, by virtue of its structural variation under the impact ...
Domenicano Aldo, Campanelli Anna Rita
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Advanced Science, EarlyView.Rare‐earth catalysts regulate lithium–sulfur battery chemistry through f‐orbital–mediated interactions, enabling simultaneous polysulfide adsorption and catalytic conversion on conductive carbon hosts. This synergistic control suppresses the shuttle effect, accelerates redox kinetics, and guides stable Li2S nucleation, providing a mechanistic framework
Fan Wang +5 more
wiley +1 more source
High Free‐Volume Imidazole‐Based Ionomers for High‐Temperature Proton Exchange Membrane Fuel Cells
Advanced Science, EarlyView.High free‐volume imidazole‐based ionomers (PF4IM‐72) enable enhanced phosphoric acid uptake and efficient proton transport, delivering peak power densities of 0.645 W cm−2 at 160 °C and 0.838 W cm−2 at 200 °C in HT‐PEMFCs. This work highlights a promising platform for next‐generation ionomers with improved high‐temperature performance and stability ...
Ge Chao +7 more
wiley +1 more source
SUBSTITUENT EFFECTS IN ACETOXYMERCURATION OF ARYL(TRIMETHYLSILYL)ETHYNES
Main Group Metal Chemistry, 1999 Floris, Barbara, Toppi, Luca
doaj +1 more source
MODELLING DRUG-RECEPTOR INTERACTIONS IN AN AVERAGE BINDING SITE FOR NK2
TASK Quarterly, 1998 A tentative procedure applied to the search for a new antagonist of the neurokinin A (NKA) is presented. In parallel a tentative 3-D model of the NK2 receptor was created, using bacteriorhodopsin (BRD) as a template.
GIULIANO ALAGONA +2 more
doaj
Advanced Science, EarlyView.A new data‐efficient framework combining DFT calculations, a neural network model, and automated graph analysis of catalytic reaction networks is proposed and applied to CO2 hydrogenation on transition metal nanoparticles. The analysis shows how efficient C2 oxygenate production requires a balance between CHx formation, C–C coupling, protonation, and ...
Mikhail V. Polynski, Sergey M. Kozlov
wiley +1 more source
SUBSTITUENT EFFECTS IN ACETOXYMERCURATION OF ARYLPHENYLETHYNES
Main Group Metal Chemistry, 1998 Ballico, Enrico, Floris, Barbara
doaj +1 more source
Sigma Hole Potentials as Tools: Quantifying and Partitioning Substituent Effects. [PDF]
J Phys Chem A, 2023 Donald KJ, Pham N, Ravichandran P.
europepmc +1 more source
Spectral studies of substituent effects in some diphenyl sulfide derivatives
, 2003 1471-1477Hammett relationship for λn-* indicates that substituent effects are purely polar while 1H NMR studies suggest that 4'arylthio-3'-nitrobenzotrifluoride 4a-i do not exist in the skew conformation.
Batterjee, S M
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