Results 11 to 20 of about 263,108 (341)

Scanning tunneling microscopy studies of monolayer templates: alkylthioethers and alkylethers [PDF]

open access: yes, 2008
Scanning tunneling microscopy has been used to determine the molecular ordering in stable, ordered monolayers formed from long-chain normal and substituted alkanes in solution on highly oriented pyrolytic graphite surfaces.
Brunschwig, Bruce S.   +2 more
core   +1 more source

Catalysis by alkali and alkaline-earth metal ions in nucleophilic attack of methoxide ion on crown ethers bearing an intra-annular acetoxy group [PDF]

open access: yes, 1989
Rates of reaction of methoxide ion with crown ethers bearing an intra-annular acetoxy group are markedly enhanced by alkali and alkaline-earth metal bromides as a result of much stronger interactions of the metal ions with transition states than with ...
Cacciapaglia, Roberta   +5 more
core   +3 more sources

Effect of base–acid properties of the mixtures of water with methanol on the solution enthalpy of selected cyclic ethers in this mixture at 298.15 K [PDF]

open access: yes, 2015
The enthalpies of solution of cyclic ethers: 1,4- dioxane, 12-crown-4 and 18-crown-6 in the mixture of water and methanol have been measured within the whole mole fraction range at T = 298.15 K.
A Wakisaka   +56 more
core   +2 more sources

Rate constants and Arrhenius parameters for the reactions of OH radicals and Cl atoms with CF3CH2OCHF2, CF3CHClOCHF2 and CF3CH2OCClF2, using the discharge-flow/resonance fluorescence method [PDF]

open access: yes, 2001
Rate constants have been determined for the reactions of OH radicals and Cl atoms with the three partially halogenated methyl-ethyl ethers, CF\(_3\)CH\(_2\)OCHF\(_2\), CF\(_3\)CHClOCHF\(_2\) and CF\(_3\)CH\(_2\)OCClF\(_2\), using discharge-flow ...
Beach, S. D.   +3 more
core   +1 more source

Complexes of aluminum, iron(III), and gallium(III) chlorides with ethers in synthesis of highly reactive polyisobutylene

open access: yesЖурнал Белорусского государственного университета: Химия, 2020
In this review, the latest achievements in the field of cationic polymerization of isobutylene catalyzed by the complexes of conventional Lewis acids with ethers are presented.
Sergei V. Kostjuk
doaj   +1 more source

Thioether-catalysed tandem synthesis of furans and cyclic ethers or lactones [PDF]

open access: yes, 2017
Acyclic conjugated ynenediones tethered to an alcohol or carboxylic acid are converted into furanyl-substituted cyclic ethers or lactones in a single step by treatment with the tetrahydrothiophene.
Clark, J. Stephen, Klaus, Verena
core   +1 more source

New synthetic phosphinate analogues of lecithin

open access: yesJournal of Lipid Research, 1971
The chemical syntheses of two new, completely nonhydrolyzable phosphinate analogues of lecithin are described. These have the structures ROCH2CH(OR)CH2CH2P(O)(O−)CH2CH2N+(CH3)3 and ROCH2CH(OR′)CH2P(O)(O−)CH2CH2CH2N+(CH3)3, where R = C18H37 and R ...
ARTHUR F. ROSENTHAL, SERGE V. CHODSKY
doaj   +1 more source

Experimental and modeling study of the autoignition of 1-hexene/iso-octane mixtures at low temperatures [PDF]

open access: yes, 2005
Autoignition delay times have been measured in a rapid compression machine at Lille at temperatures after compression from 630 to 840 K, pressures from 8 to 14 bar, \Phi = 1 and for a iso octane/1 hexene mixture containing 82% iso-octane and 18% 1 hexene.
Barbé   +33 more
core   +3 more sources

Neurobehavioral function and low-level exposure to brominated flame retardants in adolescents : a cross-sectional study [PDF]

open access: yes, 2012
Background: Animal and in vitro studies demonstrated a neurotoxic potential of brominated flame retardants, a group of chemicals used in many household and commercial products to prevent fire.
Baeyens, Willy   +12 more
core   +1 more source

Transport of persistent organic pollutants across the human placenta [PDF]

open access: yes, 2014
Environment International 65, 107-115 ...
Fernández-Somoano, A   +9 more
core   +1 more source

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