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Toplam kayıt 91, listelenen: 1-10
Ground state energy of excitons in quantum dot treated variationally via Hylleraas-like wavefunction
(IOP Publishing LTD, 2009)
In this work, the effects of quantum confinement on the ground state energy of a correlated electron-hole pair in a spherical and in a disc-like quantum dot have been investigated as a function of quantum dot size. Under ...
Nmr spectroscopic study and dft calculations of vibrational analyses, giao NMR shieldings and 'JCH, 'Jcc spin-spin coupling constants of 1,7-diaminoheptane
(2009)
Vibrational frequencies and approximate mode descriptions of 1,7-diaminoheptane (dahp) have been determined via Becke-3-Lee-Yang-Parr (B3LYP) density functional method with 6-31G(d) basis set. 'H, proton coupled and uncoupled ...
catena-Poly[[(4-formylbenzoato-kappa O-1)(isonicotinamide-kappa N-1)zinc(II)]-mu-4-formylbenzoato-kappa O-2(1):O-1 ']
(Int Union Crystallography, 2009)
In the title compound, [Zn(C8H5O3)(2)(C6H6N2O)](n), the Zn-II ion is tetrahedrally coordinated by two formylbenzoate (FB) and one isonicotinamide (INA) ligands while symmetry-related FB ligands bridge adjacent ZnII ions, ...
Ethyl 4-hydroxy-9-tosyl-9H-carbazole-3-carboxylate
(Int Union Crystallography, 2009)
In the title compound, C22H19NO5S, the carbazole skeleton is nearly planar [maximum deviation = 0.043 (1) angstrom] with the pyrrole ring oriented at dihedral angles of 2.32 (6) and 1.77 (6)degrees with respect to the ...
Nmr Spectroscopic Study and Dft Calculations of Vibrational Analyses, Giao Nmr Shieldings and (1)J(Ch), (1)J(Cc) Spin-Spin Coupling Constants of 1,7-Diaminoheptane
(Chem Soc Ethiopia, 2009)
Vibrational frequencies and approximate mode descriptions of 1,7-diaminoheptane (dahp) have been determined via Becke-3-Lee-Yang-Parr (B3LYP) density functional method with 6-31G(d) basis set. H-1, proton coupled and ...
Preparation and characterization of activated carbon produced from pomegranate seeds by ZnCl2 activation
(Elsevier Science BV, 2009)
In this study, pomegranate seeds, a by-product of fruit juice industry, were used as precursor for the preparation of activated carbon by chemical activation with ZnCl2. The influence of process variables such as the ...
Vibrational spectroscopic study on some Hofmann type clathrates: M(1-Phenylpiperazine)(2)Ni(CN)(4)center dot 2G (M = Ni, Co and Cd; G = aniline)
(Elsevier Science BV, 2009)
New Hofmann type aniline clathrates in the form of M(PP)(2)Ni(CN)(4)center dot 2G (where pp = 1-phenylpiperazine, G = aniline and M = Ni. Co and Cd) have been prepared in powder form and FT-IR and Raman spectra have been ...
Tetrakis[mu-4-(dimethylamino)benzoato-kappa O-2:O ']bis[(N,N-diethylnicotinamide-kappa N-1)zinc(II)]
(Int Union Crystallography, 2009)
The title molecule, [Zn-2(C9H10NO2)(4)(C10H14N2O)(2)], is a centrosymmetric binuclear complex, with Zn atoms [Zn center dot center dot center dot Zn ' = 2.8927 (4) angstrom] bridged by four carboxylate groups from the ...
Structural and optical properties of SnS semiconductor films produced by chemical bath deposition
(IOP Publishing LTD, 2009)
SnS films have been deposited at room temperature by the chemical bath deposition technique. The films have been examined to evaluate their structure, morphology, composition and optical properties. SnS films were ...
Time and temperature dependent microbiological and mycotoxin (ochratoxin-A) levels in boza
(Elsevier Science BV, 2009)
This study describes the examination of microbiological tests and the determination of OTA in boza temperature and time dependently. Prior to the analysis, physicochemical properties of the boza samples such as moisture, ...