Güncel Gönderiler: Makale Koleksiyonu
Toplam kayıt 1058, listelenen: 961-980
-
Vibrational spectra, DFT calculations, conformational stabilities and assignments of the fundamentals of the 1-butylpiperazine
(Elsevier Science BV, 2016)FT-IR and FT-Raman spectra of 1-butylpiperazine (1bpa) were experimentally recorded in the region of 4000-10 cm(-1) and 4000-100 cm(-1), respectively. The optimized geometric parameters, conformational equilibria, normal ... -
The effect of Mo addition on the microstructure and J(c) properties of MgB2 tapes fabricated by PIT method
(Elsevier Science Sa, 2008)We investigated the effect of Mo addition to MgB2/Ag tapes fabricated by the ex situ PIT method. The heat treatments were carried out at 600 degrees C for 24 h under At atmosphere. The structural development, microstructures, ... -
Influence of Al concentration on structural and optical properties of Al-doped ZnO thin films
(Springer, 2014)Undoped ZnO and Al-doped zinc oxide (ZnO:Al) thin films with different Al concentrations were prepared onto Si (100) substrate by pulsed filtered cathodic vacuum arc deposition system at room temperature. The influence of ... -
Bound states of the Dirac equation for the generalized Woods-Saxon potential in pseudospin and spin symmetry limits
(World Scientific Publ Co Pte LTD, 2014)Bound state solutions of the Dirac equation for the generalized Woods-Saxon potential are examined for arbitrary. states by using the approximation to the Coulomb and centrifugal potentials in pseudospin symmetry (PSS) and ... -
Electrochemical effects and magnetic properties of B substituted LiCoO2: Improving Li-battery performance
(Elsevier Science Sa, 2016)LiCo(1-x)BxO(2) (x = 0, 0.125, 0.25, 0.375, 0.5, 0.75 and 1) samples were synthesized via solid state reactions. They were characterized by SEM, X-ray powder diffraction, FTIR, Raman, electrical and magnetic measurements. ... -
Fabrication of Ca-Mn-Nb-O compounds and their structural, electrical, magnetic and thermoelectric properties
(IOP Publishing LTD, 2018)CaMn1-xNbxO3-delta (0 <= x <= 1) were synthesized by conventional solid state reaction method. The structural properties were determined by FTIR, Raman, XRD, XAS measurements. The FTIR and Raman modes change by increasing ... -
Structural, magnetic, electrical and electrochemical properties of SrCo02.5, Sr9Co2Mn5O21 and SrMnO3 compounds
(Elsevier Sci LTD, 2017)SrCo1-xMnxO3-d (0 <= x <= 1) were synthesized by conventional solid state reaction method. We found that Mn substitution hinders the decomposition of carbonate at 900 degrees C and increases the synthesis temperature of ... -
FT-IR and Raman spectroscopic and quantum chemical investigations of some metal halide complexes of 1-phenylpiperazine
(Pergamon-Elsevier Science LTD, 2012)New metal halide complexes in the form of M(pp)(2)Cl-2 (where pp = 1-phenylpiperazine and M = Pd or Hg) have been prepared for the first time and their FT-IR and FT-Raman spectra are reported in the region of 4000-10 cm(-1) ... -
Vibrational investigation of 1-cyclopentylpiperazine: A combined experimental and theoretical study
(Science Press, 2014)FT-IR and Raman spectra of 1-cyclopentylpiperazine (1cppp) have been experimentally examined in the region of 4000-200 cm(-1). The optimized geometric parameters, conformational equilibria, normal mode frequencies and ... -
P-Type Nanostructure Pbs Thin Films Prepared By the Silar Method
(Natl Inst R&D Materials Physics, 2015)In this paper, we report on the structural, optical and electrical properties of nanocrystalline lead sulfide (PbS) thin films as a p-type semiconductor deposited on glass substrates at three different pH of the cationic ... -
Infrared spectra of Hoffmann-T(d)-type benzene clathrates
(Versita, 2008)Six new title compounds in the form of Cd(cyclobutylamine)(2)M'(CN)(4) center dot 2G (M' = Cd or Hg; G = benzene, 1,2-dichlorobenzene, or 1,3-dichlorobenzene) have been prepared in powder form. Their spectral data were ... -
Processing of layered porous mullite ceramics
(Springer, 2018)In the current study, layered porous mullite ceramics with different pore sizes were produced via polymeric sponge method by using CC31 commercial-grade kaolin as starting raw material. Polyurethane sponges with three ... -
Synthesis, characterization and antibacterial activity of silver-doped TiO2 nanotubes
(Pergamon-Elsevier Science LTD, 2018)One-dimensional titanium dioxide (TiO2) nanotubes (TNTs) doped with silver (Ag) (% 5) were synthesized via two-step hydrothermal method. These nanotubes were characterized by X-ray diffraction (XRD), Fourier transform ... -
Thermally stimulated current analysis of Zn1-xCdxO alloy films
(Elsevier Science Sa, 2011)We have studied the structural and electrical properties of Zn1-xCdxO alloy films deposited by ultrasonic spray pyrolysis technique. XRD measurement indicated that pure ZnO and CdO samples had single phases with hexagonal ... -
Thermally stimulated currents in CdS film produced by ultrasonic spray pyrolysis method
(IOP Publishing LTD, 2008)Polycrystalline CdS films have been deposited by ultrasonic spray pyrolysis method. The electrical properties of the sample have been studied by means of an analysis based on the thermally stimulated current (TSC) spectrum ... -
Benzotriazole-Mediated Synthesis of Aza-peptides: En Route to an Aza-Leuenkephalin Analogue
(American Chemical Society, 2013)Novel N-(N-Pg-azadipeptidoyl)benzotriazoles 20a-e couple efficiently with alpha-amino acids 21a-e, dipeptides 22a-c, aminoxyacetic acid 23a, depsidipeptide 23b, and alpha-hydroxy-beta-phenylpropionic acid 27 yielding, ... -
Microwave-Assisted Synthesis of 2,2 '-Azopyridine-Labeled Amines, Amino Acids, and Peptides
(Georg Thieme Verlag Kg, 2016)A microwave-assisted procedure for labeling amines, amino acids, and peptides with 2,2'-azopyridines (2,2'-AzPy) is described using the corresponding 2,2'-azopyridine-diacylbenzotriazoles. The efficiency of the procedure ... -
Design, Synthesis, and Biological Activity of Novel 5-((Arylfuran/1H-pyrrol-2-yl)methylene)-2-thioxo-3-(3-(trifluoromethyl)phenyl)thiazolidin-4-ones as HIV-1 Fusion Inhibitors Targeting gp41
(American Chemical Society, 2011)On the basis of our earlier molecular docking analysis, we designed and synthesized 5-((arylfuran/1H-pyrrol-2-yl)methylene)-2-thioxo-3-(3-(trifluoromethyl)phenyl)thiazolidin-4-ones (12a-o) as HIV-1 entry inhibitors. Compounds ... -
Efficient Preparation of Aminoxyacyl Amides, Aminoxy Hybrid Peptides, and alpha-Aminoxy Peptides
(American Chemical Society, 2009)N-(Pg-alpha-aminoxy acids) 1a-g are converted to N-(Pg-alpha-aminoxyacyl)benzotriazoles 2a-g, Which react under mild conditions with amines, alpha-amino acids/alpha-dipeptides, and alpha-aminoxy acids to give aminoxyacyl ... -
Design, synthesis, and biological activity of a novel series of 2,5-disubstituted furans/pyrroles as HIV-1 fusion inhibitors targeting gp41
(Pergamon-Elsevier Science LTD, 2011)Based on molecular docking analysis of earlier results, we designed a series of 2,5-disubstituted furans/pyrroles (5a-h) as HIV-1 entry inhibitors. Compounds were synthesized by Suzuki-Miyaura cross coupling, followed by ...