Results 61 to 70 of about 55,888 (222)

Synthesis, Characterization and Antimicrobial Activity of New 1,2,3-Selenadiazoles

open access: yesMolecules, 2008
The commercially available aromatic polyketones 1a-d were utilized for the synthesis of the multi-arm1,2,3-selenadiazole derivatives 3a-d. The preparation starts with the reaction between compounds 1a-d and p-toluenesulfonyl hydrazide to give the ...
Mousa Al-Smadi, Fouad Al-Momani
doaj   +1 more source

Hydrogen-Bonding Interactions in T-2 Toxin Studied Using Solution and Solid-State NMR

open access: yesToxins, 2011
The structure of T-2 toxin in the solid-state is limited to X-ray crystallographic studies, which lack sufficient resolution to provide direct evidence for hydrogen-bonding interactions.
Paul Hazendonk   +6 more
doaj   +1 more source

Solubility and dissociation of ionic liquids in epoxides and cyclic carbonate by molecular dynamics simulation [PDF]

open access: yes
Climate emergency has led to the investigation of CO$_{2}$ valorization routes. A competitive process included in this framework is the catalytic CO$_{2}$ cycloaddition to epoxides, to produce cyclic carbonates. Halide-based Ionic liquids (ILs) have been postulated to be a competitive choice.
arxiv   +1 more source

Quantum Transport in Chemically-modified Two-Dimensional Graphene: From Minimal Conductivity to Anderson Localization [PDF]

open access: yes, 2011
An efficient computational methodology is used to explore charge transport properties in chemically-modified (and randomly disordered) graphene-based materials. The Hamiltonians of various complex forms of graphene are constructed using tight-binding models enriched by first-principles calculations. These atomistic models are further implemented into a
arxiv   +1 more source

Dust evolution, a global view: I. Nano-particles, nascence, nitrogen and natural selection . . . joining the dots [PDF]

open access: yesRSOS published 2016, 2021
The role and importance of nano-particles for interstellar chemistry and beyond is explored within the framework of The Heterogeneous dust Evolution Model at the IaS (THEMIS), focussing on their active surface chemistry (nascence), the effects of nitrogen doping and the natural selection of interesting nano-particle sub-structures. Nano-particle driven
arxiv  

ON THE PECULIARITIES OF THE RING CONTRACTION REACTIONS OF HOMODRIMANES VIA ACID MEDIATED EPOXIDE REARRANGEMENT [PDF]

open access: yesChemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2011
A selective rearrangement of a epoxy-homodrimanic substrate is described. Using fluorosulfonic acid at low temperature leads by ring contraction to a perhydrindanic structure. On the contrary, using boron trifluoride-diethyl ether at r.t.
Veaceslav Kulciţki   +2 more
doaj  

SCN1A and SCN1B gene polymorphisms and their association with plasma concentrations of carbamazepine and carbamazepine 10, 11 epoxide in Iranian epileptic patients [PDF]

open access: yesIranian Journal of Basic Medical Sciences, 2015
Objective (s): From a genetic point of view, epilepsy is a polygenic multifactorial syndrome. The SCN1A and B genes belong to a family of genes that provide instructions for making sodium channels.
Soha Namazi   +6 more
doaj  

Structure and Energetics of Graphene Oxide Isomers: Ab Initio Thermodynamic Analysis [PDF]

open access: yes, 2015
Graphene oxide (GO) holds significant promise for electronic devices and nanocomposite materials. A number of models were proposed for GO structure, combining carboxyl, hydroxyl, carbonyl and epoxide groups at different locations. The complexity and variety of GO isomers, whose thermodynamic stability and formation kinetics depend on applied conditions,
arxiv   +1 more source

1,3-Diphenylethenylcarbazolyl-Based Monomer for Cross-Linked Hole Transporting Layers

open access: yesMolecules, 2015
A new cross-linkable monomer containing 1,3-diphenylethenylcarbazolyl-based hole-transporting moieties and four reactive epoxy groups, was prepared by a multistep synthesis route from 1,3-bis(2,2-diphenylethenyl)-9H-carbazol-2-ol and its application for ...
Maryte Daskeviciene   +6 more
doaj   +1 more source

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