Başlık için Makale Koleksiyonu listeleme
Toplam kayıt 1058, listelenen: 574-593
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Near-infrared and ultraviolet induced isomerization of crotonic acid in N-2 and Xe cryomatrices: First observation of two high-energy trans C-O conformers and mechanistic insights
(Amer Inst Physics, 2014)E-crotonic acid was isolated in cryogenic solid N-2 and xenon matrices, and subjected to Laser ultraviolet (UV) and near-infrared (NIR) irradiations. In the deposited matrices, the two low-energy cis C-O E-cc and E-ct ... -
Negative mass solitons in gravity
(American Physical Soc, 2006)We first reconstruct the conserved (Abbott-Deser) charges in the spin-connection formalism of gravity for asymptotically (Anti)-de Sitter spaces, and then compute the masses of the AdS soliton and the recently found ... -
A new 2,2 '-oxydianiline derivative symmetrical azomethine compound containing thiophene units: Synthesis, spectroscopic characterization (UV-Vis, FTIR, H-1 and C-13 NMR) and DFT calculations
(Elsevier Science BV, 2018)In this study, a new symmetrical azomethine compound, N,N'-oxydiphenylenebis(5-(thiophen-2-yl) salicylidenimine OPBTS (5), having two thiophene rings and N, O donor groups, was successfully prepared by a simple condensation ... -
A New Application Area for Ag-NHCs: CO2 Fixation Catalyst
(Wiley-V C H Verlag GMBH, 2012)The first example of the silver-NHC catalyzed cycloaddition of CO2 to terminal epoxides is reported. The choice of NHC substituents, halides and the nature of additives were determined to be important. Ionic [(Cnmim)2Ag]2[Ag2Br4] ... -
A new approach to Lorentz invariance in electromagnetism with hyperbolic octonions
(Springer Heidelberg, 2012)In this study, after introducing the hyperbolic octonionic (counteroctonion) algebra and its properties, Maxwell's equations with magnetic monopole and currents, Lorenz conditions for the electric, magnetic fields and ... -
A new approach to quantum well infrared photodetectors: Staircase-like quantum well and barriers
(Elsevier Science BV, 2006)We present a theoretical investigation of a novel staircase-like quantum well infrared photodetector (QWIP). The proposed structure makes use of quantum wells and barriers with increasing Al content both in the wells and ... -
A new dioxime ligand and its trinuclear copper(II) complex: Synthesis, characterization and optical properties
(Elsevier Science BV, 2007)The synthesis and characterization of a new dioxime ligand, (H,L), (III) and its trinuclear copper(II) complex, [Cu3L2(H2O)(2)](ClO4)(2), (V) is described. IR spectra show that the ligand acts in a tetradentate manner and ... -
The new dispirobino and dispiroansa spermine derivatives of cyclotriphosphazenes
(Pergamon-Elsevier Science LTD, 2010)In this study, the crystal structures of the dispiroansa spermine derivatives of cyclotriphosphazene are characterised for the first time. The reaction of spiro-, gem-disubstituted cyclotriphosphazene derivatives, ... -
A new metal chelate affinity adsorbent for Cytochrome c
(Wiley, 2004)We have prepared a novel metal-chelate adsorbent utilizing N-methaeryloyl-L-histidine methyl ester (MAH) as a metal-chelating ligand. MAH was synthesized by using methacryloyl chloride and L-histidine methyl ester ... -
A new model for the reformulation of compressible fluid equations
(Elsevier Science BV, 2017)Stimulating the biquaternionic generalization of electric and magnetic fields in electromagnetism, a new model has been proposed to present the Maxwell type equations of compressible fluids. The fluid wave equation has ... -
A New Molecular Imprinting-Based Mass-Sensitive Sensor for Real-Time Detection of 17 beta-Estradiol from Aqueous Solution
(Wiley, 2013)The 17-estradiol (E2), natural steroid hormone, is one of the most potent endocrine disrupting compounds even at ng L-1 levels. Its rapid, selective and sensitive detection is intensively required. In this study, quartz ... -
New NO donor ligands and complexes containing furfuryl or crown ether moiety: Syntheses, crystal structures and tautomerism in ortho-hydroxy substituted compounds as studied by UV-vis spectrophotometry
(Elsevier Science BV, 2015)NO donor ligands were prepared by the condensation of methoxy substituted salicylaldehyde with 5-methylfurfurylamine (I and 2) and 4'-aminobenzo-15-crown 5 (3-5). New crown ether ligands of Schiff base type (3-5) containing ... -
A new protocol for the synthesis of primary, secondary and tertiary anthranilamides utilizing N-(2-aminoarylacyl)benzotriazoles
(Arkat Usa Inc, 2012)A convenient route for efficient conversion of unprotected anthranilic acids into the corresponding N-(2-aminoarylacyl)benzotrazoles is described. N-(2-Aminoarylacyl)benzotrazoles have been successfully used to synthesize ... -
New synthesis method for 4-MAPBA monomer and using for the recognition of IgM and mannose with MIP-based QCM sensors
(Royal Soc Chemistry, 2013)Quartz crystal microbalance (QCM) sensors coated with molecularly imprinted polymers (MIP) have been developed for the recognition of immunoglobulin M (IgM) and mannose. In this method, methacryloylamidophenylboronic acid ... -
(NHC)-Pd(II) complexes with hydrophilic Nitrogen ligands; catalytic properties in neat water
(Scientific Technical Research Council Turkey-Tubitak, 2013)The cleavage reactions of the dimers [(NHC)PdX2](2) with hydrophilic N-donors, L, a ff orded the mixedligand complexes of the type trans-[(NHC)LPdX2] (X = Cl or Br; NHC = 1,3-dialkylbenzimidazol-2-ylidene (BIm) or bis(imino) ... -
Ni(II) ion-imprinted solid-phase extraction and preconcentration in aqueous solutions by packed-bed columns
(Elsevier Science BV, 2004)Solid-phase extraction (SPE) columns packed with materials based on molecularly imprinted polymers (MIPs) were used to develop selective separation and preconcentration for Ni(II) ion from aqueous solutions. SPE is more ... -
Nickel(II)-Imprinted Monolithic Columns for Selective Nickel Recognition
(Wiley, 2010)Ni2+-imprinted monolithic column was prepared for the removal of nickel ions from aqueous solutions. N-Methacryloyl-L-histidine was used as a complexing monomer for Ni2+ ions in the preparation of the Ni2+-imprinted ... -
Nitrate Removal from Aqueous Solution by Hexadecyltrimethylammonium Bromide-Modified Clinoptilolite
(Asian Journal Of Chemistry, 2011)In the first stage of study, detailed characterization studies were performed on clinoptilolite-rich tuff mined from the Gordes/Manisa region (Turkey). The physical and chemical properties were determined using instrumental ... -
Nitrate removal from aqueous solution by hexadecyltrimethylammoniumbromide- modified clinoptilolite
(2011)In the first stage of study, detailed characterization studies were performed on clinoptilolite-rich tuff mined from the Gördes/Manisa region (Turkey). The physical and chemical properties were determined using instrumental ... -
NMR determination of solvent dependent behavior and XRD structural properties of 4-carboxy phenylboronic acid: A DFT supported study
(Elsevier Science BV, 2018)Solvent dependent structural properties of 4-carboxy phenylboronic acid (4-cpba) were investigated by X-ray diffraction (XRD) and nuclear magnetic resonance (NMR) spectroscopic methods. The molecular structure and geometric ...
