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694 Newest Publications about the topic iso
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The new C-C bond formation in the reaction of o-amidophenolate indium(III) complex with alkyl iodides
22-05-2013 | Alexandr Vladimirovich Piskunov; Irina N Meshcheryakova; Georgii K Fukin; Andrei S Shavyrin; Vladimir Kuz'mich Cherk ..., Dalton Transactions, 2013
The reaction of bis(4,6-di-tert-butyl-N-(2,6-di-iso-propylphenyl)-o-amidophenolato)indium(III) anion with alkyl iodides is reported. This process includes oxidative addition of two RI (R = Me, Et) molecules to the non-transition metal complex and results in an alkyl transfer to ring carbon ...
H/F isosteric substitution to attest different equi-energetic molecular conformations in crystals
15-05-2013 | Amol G. Dikundwar; Ch Venkateswarlu; Srinivasan Chandrasekaran; Tayur Guru Row, CrystEngComm, 2013
Sequential replacement of aromatic H-atom/s by F-atom/s in 1,6-bis(phenylcarbonate) hexa-2,4-diyne allows access to its possible iso-energetic “syn”, “gauche” and “anti” conformations.
Separation and Characterization of Olefin/Paraffin in Coal Tar and Petroleum Coker Oil
14-05-2013 | Hongxing Ni; Chang Samuel Hsu; Chao Ma; Quan Shi; Chunming Xu, Energy & Fuels, 2013
We have investigated and established a preparative method of using a solid-phase extraction cartridge containing Ag+-exchange resin (Ag+-SPE) for separating olefins and paraffins in the saturate fractions of coal tar and petroleum coker oil. The successful separation of paraffins and olefins ...
Modified Folin–Ciocalteu Antioxidant Capacity Assay for Measuring Lipophilic Antioxidants
13-05-2013 | Kadriye Isil Berker; F. Ayca Ozdemir Olgun; Dilek Ozyurt; Birsen Demirata; Resat Apak, Journal of Agricultural and Food Chemistry, 2013
The Folin–Ciocalteu (FC) method of performing a total phenolics assay, originally developed for protein determination, has recently evolved as a total antioxidant capacity assay but was found to be incapable of measuring lipophilic antioxidants due to the high affinity of the FC chromophore, ...
Theoretical and Kinetic Study of the Reactions of
Ketones with HȮ2 Radicals. Part I: Abstraction Reaction
Channels
09-05-2013 | Jorge Mendes; Chong-Wen Zhou; Henry J. Curran, Journal of Physical Chemistry A, 2013
This work presents an abinitio and chemical kinetic study of the reaction mechanisms of hydrogen atom abstraction by the HȮ2 radical on five ketones: dimethyl, ethyl methyl, n-propyl methyl, iso-propyl methyl, and iso-butyl methyl ketones. The Møller–Plesset method using the 6-311G(d,p) basis ...
Tabulation of irreducible representations of the crystallographic space groups and their superspace extensions
07-05-2013 | Harold T. Stokes, Branton J. Campbell, Ryan Cordes, Acta Crystallographica Section A, 2013
New tables of irreducible representations (IRs) are introduced for the 230 crystallographic space groups (SGs) in three‐dimensional space, at both special and non‐special k vectors, and for their extensions to (3 + d)‐dimensional superspace (`superspace‐extended SGs' or SSESGs). Neither a ...
Beyond the Effect of Particle Size: Influence of CoFe2O4 Nanoparticle Arrangements on Magnetic Properties
07-05-2013 | D. Peddis; C. Cannas; A. Musinu; A. Ardu; F. Orrù; D. Fiorani; S. Laureti; D. Rinaldi; G. Muscas; G. Concas; G. Picc ..., Chemistry of Materials, 2013
This paper focuses on the magnetic properties of CoFe2O4 nanoparticles, discussing the influence of nanoparticles arrangements obtained by different synthesis methods. Using high thermal decomposition (HTD) and direct micellar (DM) routes, three samples of CoFe2O4 nanoparticles with equal ...
Cyclic Fatigue Life‐ and Crack‐Growth Behavior of Zirconia–Niobium Composites
06-05-2013 | A. Smirnov, C. F. Gutiérrez‐González, J. F. Bartolomé, Journal of the American Ceramic Society, 2013
A 3Y‐TZP/Nb composite fabricated by Hot‐pressing (HP) sintering with well‐distributed lamellar/flake–shaped metal particles (20vol% fraction) has been studied under cyclic loading. Fatigue life was determined for the ceramic/metal composite as well as for monolithic zirconia to compare the ...
Beyond the Divinyl Ketone: Innovations in the Generation and Nazarov Cyclization of Pentadienyl Cation Intermediates
06-05-2013 | William T. Spencer, Tulaza Vaidya, Alison J. Frontier, European Journal of Organic Chemistry, 2013
Abstract The requirement for new strategies for synthesizing five‐membered carbocycles has driven an expansion in study of the Nazarov cyclization. This renewed interest in the reaction has led to the discovery of several interesting new methods for generating the pentadienyl cation ...
Phosphate-free ornithine lipid contents in Desulfovibrio spp. respond to growth temperature
29-04-2013 | Author(s): Michael Seidel , Heike Rütters , Jürgen Rullkötter , Henrik Sass, Organic Geochemistry, 2013
Publication date: Available online 22 April 2013Source:Organic Geochemistry Author(s): Michael Seidel , Heike Rütters , Jürgen Rullkötter , Henrik Sass Eight sulfate-reducing Desulfovibrio strains isolated from intertidal sediments of the North Sea were investigated for their intact ...
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