Results 81 to 90 of about 239,878 (262)
Advanced Science, EarlyView.Perovskite‐type oxide lanthanoid‐substituted BiCoO3 exhibits a reversible negative thermal expansion (NTE) originated from the coordination change from the CoO5 pyramid to the CoO6 octahedron due to melting of the dxy orbital ordering in the d6 electron configuration, and the 6.1% volume shrinkage in Bi0.82Nd0.18CoO3 is the largest ever observed in the
Yuki Sakai +10 more
wiley +1 more source
Intramolecular 1,3-dipolar cycloadditions of norbornadiene-tethered nitrile oxides [PDF]
, 2000 Although the intermolecular reactions of 1,3-dipoles with norbornadiene and its derivatives have been subjected to considerable investigation, the intramolecular variants have not been studied.
Yip, Carol
core +1 more source
, 2000 [reaction: see text] O-Silylated hydroxamic acids serve as stable, readily accessible, crystalline precursors to nitrile oxides when treated with trifluoromethanesulfonic anhydride and triethylamine. Under these mild conditions in the presence of olefins
Carreira EM, Muri D, Bode JW
core +1 more source
Advancing Energy Efficiency in Smart Windows via Dual‐Responsive Electro‐Thermochromism
Advanced Science, EarlyView.A durable and stable quasi‐solid‐state electro‐thermal dual‐responsive photothermal regulation device has been employed in advanced energy‐efficient smart windows. The devised device not only incorporates a thermochromic hydrogel characterized by high ionic conductivity, high optical transmittance, and a low LCST, but also comprises an electrochromic ...
Tongyu Chen +10 more
wiley +1 more source
Cu(OH)x-clay catalyst promoted synthesis of 4,5-dihydro-1,2,4-oxadiazole at room temperature
Green Processing and Synthesis, 2018 An easy and efficient scheme is described and designed for the preparation of 4,5-dihydro-1,2,4-oxadiazole using recyclable Cu(OH)x-clay heterogeneous catalyst at room temperature.
Dar Bashir Ahmad +3 more
doaj +1 more source
Ion–molecule reactions between ionized nitrile oxides and neutral nitrile
International Journal of Mass Spectrometry, 2002 Abstract The ion–molecule reactions of ionized nitrile oxide, RCN + O , with several neutral nitriles have been studied using both tandem mass spectrometric techniques and ab initio molecular orbital calculations. Ionized oxygen atom transfer as well as a formal substitution of nitric oxide by the neutral reagent in the radical cation were the ...
Gerbaux, Pascal +3 more
openaire +2 more sources
Nitrolic acids: efficient precursors of nitrile oxides under neutral conditions
, 2000 International audienceNitrolic acids are prepared in good yields from primary nitroalkanes or primary alkyl bromides. Upon heating in THF, they afford the corresponding nitrile oxides under neutral conditions.
Gissot, Arnaud +3 more
core +1 more source
, 2023 In this study, 1,1-difluoroallenes underwent a regioselective [2+3] cycloaddition with nitrile oxides and imine oxides in the presence of a AuCl catalyst.
Sho Nakazono +11 more
core +1 more source
Battery‐Inspired Electrochemical Synapses for Neuromorphic Applications
Advanced Science, EarlyView.Battery‐ion‐inspired synaptic devices integrate diverse electrolyte systems (solid, ion‐gel, liquid) with transition metal oxides, two‐dimensional materials, and organic channels to regulate ion‐electron coupling. By tailoring ion transport and host interactions, these platforms enable controllable plasticity and energy‐efficient implementations for ...
Won Woo Lee +6 more
wiley +1 more source
Asymmetric one-pot synthesis of cyclopropanes
Macedonian Journal of Chemistry and Chemical Engineering, 2016 Cycloaddition of the diazoalkanes to electron-deficient olefins (in situ) affords polysubstituted cyclopropanes in high yields (up to 85%). Deprotection of the ketal protecting group provided water-soluble cyclopropane-bearing carbohydrate in good yields.
Naoufel Ben Hamadi +2 more
doaj +1 more source