Güncel Gönderiler: Fen Fakültesi
Toplam kayıt 2379, listelenen: 2161-2180
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DFT, FT-Raman and FT-IR investigations of 1-cyclobutylpiperazine
(Pergamon-Elsevier Science LTD, 2012)FT-IR and FT-Raman spectra of 1-cyclobutylpiperazine (1cbpp) have been experimentally reported in the region of 4000-10 cm(-1) and 4000-50 cm(-1), respectively. The optimized geometric parameters, conformational equilibria, ... -
Infrared, Raman and density functional characterization and structural study of 2-Nitro-2-phenyl-propane-1,3-diol
(Elsevier Science BV, 2017)Nitro compound and nitro derivatives are industrially important to produce rubber and agricultural chemicals. In this study, one of the promising derivatives of nitro compound 2-Nitro-2-phenyl-propane-1,3-diol (2NPP) is ... -
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 ... -
Effect of tri-sodium citrate concentration on structural, optical and electrical properties of chemically deposited tin sulfide films
(Elsevier Science BV, 2014)Tin sulfide thin films were deposited onto glass substrates by chemical bath deposition. The effects of molar concentration of the complexing agent, tri-sodium citrate, on the structural, morphological, optical and electrical ... -
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 ... -
New Cu-Al Based Quaternary and Quinary High Temperature Shape Memory Alloy Composition Systems
(Amer Inst Physics, 2018)The Cu-rich HTSMAs (high temperature shape memory alloys) with new compositions of a quaternary Cu24.07Al- 1.85Ti-1.40Co (at%) and a quinary Cu-24.08Al-2.23Fe-1.34Co-0.97Ti (at%) were fabricated by arc melting and analysed ... -
Fabrication and Optical Characterization of CdSe Thin Films Grown by Chemical Bath Deposition
(Polish Acad Sciences Inst Physics, 2015)Cadmium selenide thin films with different pH values (pH = 10, 11, 12 and 13) are produced on glass substrates at 50 degrees C for 3 h by chemical bath deposition technique. The structural, morphological and optical ... -
Natural Evolution of SS Cyg Based on an X-Ray Data Analysis at Very Short Periods
(Astronomical Soc Pacific, 2011)We have carried out a Chandra data analysis of the prototype dwarf nova SS Cyg during quiescence and outburst. The SS Cyg data number 646 and 648 were obtained by the Chandra X-Ray Observatory on August 24, 2000 in quiescence ... -
Peptidomimetics via modifications of amino acids and peptide bonds
(Royal Soc Chemistry, 2014)Peptidomimetics represent an important field in chemistry, pharmacology and material science as they circumvent the limitations of traditional peptides used in therapy. Self-structural organizations such as turns, helices, ... -
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 ...