Güncel Gönderiler: Makale Koleksiyonu
Toplam kayıt 1058, listelenen: 1001-1020
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The variation of temperature-dependent carrier concentration and mobility in AlGaN/AlN/GaN heterostructure with SiN passivation
(Wiley-V C H Verlag GMBH, 2015)The effects of surface passivation effect on electron mobility and crystal structure in Al0.3Ga0.7N/AlN/GaN heterostructures are investigated by classical Hall effect measurements and an X-ray diffraction method. ... -
Complementary and alternative technique for the determination of electron effective mass: quantum Hall effect
(Natl Inst Optoelectronics, 2016)The quantum Hall effect measurements in the AlInN/AlN/GaN heterostructure are studied in the temperature range from 1.8 K to 14 K and a magnetic field up to 11 T. The quantized two-dimensional electron gas was placed at ... -
1,1 '-Bis-(n-benzotriazolyl) ferrocenecarboxamide: Precursor for synthesis of 1,1 '-bis-ferrocenoyl esters and thioesters
(Elsevier Science Sa, 2014)A microwave assisted synthesis methodology has been presented for the preparation of the bisferrocenoyl esters and thioesters. 1,1'-bis-ferrocenedicarboxylic acid was derivatized using direct H-1-benzotriazole/SOCl2 ... -
Temperature and magnetic field effect on oscillations observed in GaInNAs/GaAs multiple quantum wells structures
(Elsevier Science BV, 2012)The photoconductivity of p-i-n GaInNAs/GaAs multiple quantum well (MQW) mesa structures is investigated. When illuminated with photons at energy greater than the GaAs bandgap, a number of oscillations are observed in the ... -
A density functional theory investigation on amantadine drug interaction with pristine and B, Al, Si, Ga, Ge doped C60 fullerenes
(Elsevier Science BV, 2017)Amantadine is a well-known drug for its treatment effect on Parkinson's disease and influenza infection or hepatitis. Heteroatom doped fullerenes have been extensively examined for their possible usage in sensor technology ... -
FT-IR, NMR SPECTROSCOPIC and QUANTUM MECHANICAL INVESTIGATIONS OF TWO FERROCENE DERIVATIVES
(Chem Soc Ethiopia, 2017)New ferrocene derivatives as N-(3-piperidin-1-ylpropyl) ferrocenamide (Fc-3ppa) and N-( pyridine-3-ylmethyl) ferrocenamide (Fc-3pica) and structural investigations were carried out with H-1, C-13, DEPT 45 or 135, HETCOR, ... -
Adsorption mechanism, structural and electronic properties: 4-Phenylpyridine & undoped or doped (B or Si) C60
(Elsevier Science BV, 2017)Interaction mechanisms of fullerene derivatives and various types of molecules have been paid increasing attention. In this research, interaction mechanism, structural and electronic properties, natural bond orbital (NBO) ... -
Conformational and electronic properties of N-methacryloyl-(L)-glutamic acid
(Taylor & Francis LTD, 2017)Conformers of N-methacryloyl-(L)-glutamic acid (MAGA, C9H13NO5) in the gas phase, benzene or methanol environment were searched by the density functional theory (DFT) and time-dependent DFT. Selected conformational isomers ... -
Three-color broadband asymmetric quantum well infrared photodetectors in long wavelength infrared range (LWIR)
(Springer, 2010)A theoretical investigation of a GaAs/AlGaAs-material-system-based four quantum well infrared detector structures consisting of ten periods of three asymmetric quantum well units are presented. Each quantum well in the ... -
DFT, FT-IR and Raman investigations of 1-pyrrolidino-1-cyclopentene
(Pergamon-Elsevier Science LTD, 2013)FT-IR and Raman spectra of 1-pyrrolidino-1-cyclopentene (1py1cp) were experimentally reported in the region of 4000-10 cm(-1) and 4000-100 cm(-1), respectively. The optimized geometric parameters, normal mode frequencies ... -
NMR, FT-IR spectroscopic studies and molecular docking study of 4-acetoxyphenethyl acrylate
(World Scientific Publ Co Pte LTD, 2017)Conformational, structural, vibrational spectroscopic properties and nuclear magnetic chemical shift values of 4-acetoxyphenethyl acrylate (4APA) were investigated using spectroscopic and theoretical approaches including ... -
Absorption mechanism, structural and electronic properties of MC19 (M = B and Si) fullerenes with 1-acetylpiperazine
(Sage Publications Inc, 2018)The interaction mechanisms of undoped, silicon- and boron-doped C20 fullerenes and 1-acetylpiperazine (1-ap) were investigated. Stability, electronic properties, influence of water on the solubility and stability, molecular ... -
MC19 (M = B, Si, Al and Ga) fullerenes: Adsorption mechanisms of 1,4-diformylpiperazine
(Sage Publications Inc, 2018)Fullerenes and piperazines have been investigated, particularly, in the field of nanoscience and medicinal chemistry. In the present research, besides discussing structural and electronic properties, the most probable ... -
Vibrational spectroscopic investigation of 1-pyrrolidino-1-cyclohexene: A comparative density functional study
(Pergamon-Elsevier Science LTD, 2013)Infrared and Raman spectra of 1-pyrrolidino-1-cyclohexene (1 pych) have experimentally been reported in the region of 4000-100 cm(-1). The conformational analysis, optimized geometric parameters, normal mode frequencies ... -
Interaction mechanisms and structural properties of B-, Si-doped C60 fullerenes with 1-formylpiperazine
(Walter De Gruyter GMBH, 2016)Piperazines and fullerene nanocages are versatile compounds. These are discussed in a wide range of academic work, especially in the field of medicine, and considered for various applications by the pharmaceutical industry. ... -
NMR, FT-IR, Raman and UV-Vis spectroscopic investigation and DFT study of 6-Bromo-3-Pyridinyl Boronic Acid
(Elsevier Science BV, 2015)Possible stable conformers and geometrical molecular structures of 6-Bromo-3-Pyridinyl Boronic acid (6B3PBA; C5H5BBrNO2) were studied experimentally and theoretically using FT-IR and Raman spectroscopic methods. FT-IR and ... -
Synthesis, molecular structure, FT-IR, FT-Raman and XRD spectroscopic investigations of (E)-1-(5-((4-bromophenyl)diazenyl)-2-hydroxyphenyl)ethanone: A comparative DFT study
(Elsevier, 2015)The (E)-2-acethyl-4-(4-bromophenyldiazenyl) phenol compound was synthesized and analysed by elemental analysis, single-crystal X-ray diffraction (XRD), FT-IR and FT-Raman spectroscopies. Furthermore, vibrational spectra ... -
Carbonyl stretching vibrations of 5-halogen-2-thiophenecarboxaldehydes: KBM, AN, SWAIN and LSER parameters
(Pamukkale University, 2016)Halogen and solvent influence on the conformational stability and carbonyl stretching vibration of 5-Halogeno-2-thiophene-carboxaldehydes (C5H3XOS; X=F, Cl or Br) were investigated by the density functional theory using ... -
Investigation of tautomeric behavior of 3-amino-4-[4-(dimethylamino)phenyl]-4,5-dihydro-1,2,5-thiadiazole 1,1-dioxide using Fourier Transform infrared and nuclear magnetic resonance spectroscopic methods: A density functional theory supported study
(Elsevier Science BV, 2016)Sulfonamide derivatives have been widely incorporated in different types of studies, particularly in bioorganics and medicinal chemistry. Molecular conformation or tautomeric forms of molecules are directly related to their ... -
Adsorption Mechanisms of 6-Chloro-3-Hydroxy-2-Pyrazinecarboxamide on Pristine, Si- and Al-Doped C-60 Fullerenes: A DFT Study
(Springer/Plenum Publishers, 2017)Fullerenes have been of research interest and they have been particularly studied for their possible applications as drug delivery vehicles. In the present research, the optimized molecular geometries, electronic properties ...