Results 271 to 280 of about 49,182 (344)
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A Cubic 3D Covalent Organic Framework with nbo Topology.
Journal of the American Chemical Society, 2021The synthesis of three-dimensional (3D) covalent organic frameworks (COFs) requires high-connectivity polyhedral building blocks or the controlled alignment of building blocks.
Xue Wang +10 more
semanticscholar +1 more source
ChemistrySelect, 2020
The feasibility of detecting a Chlorofluoromethane (CFM) gas molecule on the outer surface of a pristine single-walled boron nitride nanotube as well as Al-, Ga-, P-, and As-doped structures.
M. Doust Mohammadi, H. Abdullah
semanticscholar +1 more source
The feasibility of detecting a Chlorofluoromethane (CFM) gas molecule on the outer surface of a pristine single-walled boron nitride nanotube as well as Al-, Ga-, P-, and As-doped structures.
M. Doust Mohammadi, H. Abdullah
semanticscholar +1 more source
Journal of Solid State Chemistry, 1970
The resistivity of NbOx (0.99 ⩽ x ⩽ 1.03) boules containing 3 to 5 grains is reported for the range 77–900°K. The material is an excellent conductor with a positive temperature coefficient of resistivity. The results are compared with some earlier work, which seems to require correction, and with unpublished work which is confirmed by this study.
G.V. Chandrashekhar +2 more
openaire +2 more sources
The resistivity of NbOx (0.99 ⩽ x ⩽ 1.03) boules containing 3 to 5 grains is reported for the range 77–900°K. The material is an excellent conductor with a positive temperature coefficient of resistivity. The results are compared with some earlier work, which seems to require correction, and with unpublished work which is confirmed by this study.
G.V. Chandrashekhar +2 more
openaire +2 more sources
Journal of Low Temperature Physics, 1990
Studies of the dHvA effect have been made on NbO single crystals grown by a zone melting techniques and 13 separate frequency branches ranging from 5.2×106 G to 1.2×108G have been observed. To understand the origin of the dHvA frequencies, we have made a self-consistent band structure calculation.
H. Aoki +5 more
openaire +2 more sources
Studies of the dHvA effect have been made on NbO single crystals grown by a zone melting techniques and 13 separate frequency branches ranging from 5.2×106 G to 1.2×108G have been observed. To understand the origin of the dHvA frequencies, we have made a self-consistent band structure calculation.
H. Aoki +5 more
openaire +2 more sources
NBO 7.0: New vistas in localized and delocalized chemical bonding theory
Journal of Computational Chemistry, 2019We briefly outline some leading features of the newest version, NBO 7.0, of the natural bond orbital (NBO) wavefunction analysis program. Major extensions include: (1) a new NPEPA module implementing Karafiloglou's “polyelectron population analysis” in ...
E. Glendening, C. Landis, F. Weinhold
semanticscholar +1 more source
The effect of vacancies on the electronic structure of Nbo
Journal of Physics and Chemistry of Solids, 1982Abstract The crystal structure of NbO is considered as a NaCl structure with 25% ordered vacancies in each sublattice. Self-consistent energy band structure calculations using the augmented plane wave (APW) method have been carried out for a hypothetical NbO with the full NaCl structure and for the structure with the vacancies.
Raimund Podloucky +4 more
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Tiling of a Nb(110) surface with NbO crystals nanosized by the NbO/Nb misfit
Physical Review B, 2002The overlayer covering a (110) face of a Nb crystal annealed at 1500--2000 K in UHV has been studied by Auger electron and photoemission spectroscopies, low-energy electron diffraction (LEED) and scanning tunneling microscopy (STM). This layer, which results from the surface segregation of oxygen dissolved in Nb bulk, corresponds to a thin niobium ...
J. Cousty, H. Safa, Imad Arfaoui
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Vacancy filling effect in thermoelectric NbO
Journal of Physics: Condensed Matter, 2015Using density functional theory, we have systematically explored the 1a and 1b vacancy filling in NbO (space group Pm-3m) with Nb and N, respectively, to design compounds with large Seebeck coefficients. The most dominating effect was identified for filling of 1b Wyckoff sites with N giving rise to a fivefold increase in the Seebeck coefficient.
Daniel Primetzhofer +4 more
openaire +3 more sources
, 2020
The feasibility of detecting the chlorofluoromethane (CFM) onto the outer surface of pristine silicon carbide nanotube (SiCNT), as well as its germanium doped structures (SiCGeNT), was carefully evaluated.
M. Mohammadi +2 more
semanticscholar +1 more source
The feasibility of detecting the chlorofluoromethane (CFM) onto the outer surface of pristine silicon carbide nanotube (SiCNT), as well as its germanium doped structures (SiCGeNT), was carefully evaluated.
M. Mohammadi +2 more
semanticscholar +1 more source
ChemInform Abstract: The Luminescence of K2(NbO)2Si4O12.
ChemInform, 1992AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Yves Piffard +3 more
openaire +3 more sources