Results 41 to 50 of about 205,731 (373)

Probing the Electrostatic and Steric Requirements for Substrate Binding in Human Platelet-Type 12-Lipoxygenase. [PDF]

open access: yes, 2019
Human platelet ALOX12 (hALOX12 or h12-LOX) has been implicated in a variety of human diseases. The present study investigates the active site of hALOX12 to more thoroughly understand how it positions the substrate and achieves nearly perfect regio- and ...
Aleem, Ansari Mukhtar   +7 more
core   +2 more sources

Part 2. Mechanistic aspects of the reduction of S-alkyl-thionocarbonates in the presence of triethylborane and air

open access: yesBeilstein Journal of Organic Chemistry, 2007
Experiments conducted with deuterated compounds demonstrated that during the reduction of S-alkylxanthates with triethylborane, the hydrogen atom transferred has several competing origins.
Florent Allais   +2 more
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

An Ab Initio RRKM-Based Master Equation Study for Kinetics of OH-Initiated Oxidation of 2-Methyltetrahydrofuran and Its Implications in Kinetic Modeling

open access: yesEnergies, 2023
Cyclic ethers (CEs) can be promising future biofuel candidates. Most CEs possess physico-chemical and combustion indicators comparable to conventional fuels, making them suitable for internal combustion engines. This work computationally investigates the
Tam V.-T. Mai   +7 more
doaj   +1 more source

Grain Surface Models and Data for Astrochemistry [PDF]

open access: yes, 2017
The cross-disciplinary field of astrochemistry exists to understand the formation, destruction, and survival of molecules in astrophysical environments. Molecules in space are synthesized via a large variety of gas-phase reactions, and reactions on dust ...
A. Al-Halabi   +284 more
core   +6 more sources

Acceptorless cross-dehydrogenative coupling for C(sp3)-H heteroarylation mediated by a heterogeneous GaN/ketone photocatalyst/photosensitizer system

open access: yesCommunications Chemistry, 2023
Alkanes are naturally abundant chemical building blocks that contain plentiful C(sp 3)-H bonds. While inert, the activation of C(sp 3)-H via hydrogen atom abstraction (HAT) stages an appealing approach to generate alkyl radicals.
Hyotaik Kang   +6 more
doaj   +1 more source

Selective deuteration as a tool for resolving autoxidation mechanisms in α-pinene ozonolysis [PDF]

open access: yesAtmospheric Chemistry and Physics, 2023
Highly oxygenated organic molecules (HOMs) from α-pinene ozonolysis have been shown to be significant contributors to secondary organic aerosol (SOA), yet our mechanistic understanding of how the peroxy-radical-driven autoxidation leads to their ...
M. Meder   +14 more
doaj   +1 more source

Gas phase homolytic bond dissociation enthalpies of common laboratory solvents: A G4 theoretical study [PDF]

open access: yes, 2010
Gas phase standard state (298.15 K, 1 atm) calculations were conducted at the Gaussian-4 (G4) composite method level of theory to estimate the bond dissociation enthalpies (BDEs) of various common laboratory solvents.
Kaya Forest, Sierra Rayne
core   +2 more sources

Chemical dynamics of triacetylene formation and implications to the synthesis of polyynes in Titan's atmosphere [PDF]

open access: yes, 2009
For the last four decades, the role of polyynes such as diacetylene (HCCCCH) and triacetylene (HCCCCCCH) in the chemical evolution of the atmosphere of Saturn's moon Titan has been a subject of vigorous research. These polyacetylenes are thought to serve
A. M. Mebel   +14 more
core   +2 more sources

Remote functionalization by tandem radical chain reactions [PDF]

open access: yes, 1997
Normal radical relay chlorination of cholestan-3α-ol directed by an attached m-iodobenzoate ester group affords a 9α-chloro steroid, but when the same reaction is conducted in the presence of an excess of CBr4 the product is a 9α-bromo steroid ...
Wiedenfeld, David
core   +1 more source

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