Results 211 to 220 of about 36,268 (249)

Le Newborn Behavioral Observations System (NBO)

Devenir, 2018
Le Newborn Behavioral Observations System (NBO) est un outil relationnel centré sur la relation nourrisson-famille, et conçu pour sensibiliser les parents aux compétences et à l’individualité de leur nourrisson, afin de favoriser les interactions positives entre eux et leur nourrisson.
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Neutron radiation damage in NbO single crystals

Radiation Effects, 1977
Abstract The effect of neutron irradiation and subsequent recovery has been studied for NbO single crystals of a defective NaCl structure containing 25% vacancies of niobium and oxygen. A very large increase (about 1%) in the lattice constant is observed after irradiation of 1.5 × 1019 and 1 × 1020 nvt (> 1 MeV).
T. Onozuka, M. Koiwa, Y. Ishikawa, S. Yamaguchi, M. Hirabayashi   +4 more
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The potassium niobyl cyclotetrasilicate K2(NbO)2Si4O12

Journal of Solid State Chemistry, 1992
Abstract The single-phase compound K2(NbO)2Si4O12 was prepared by solid-state reaction. It crystallizes in the tetragonal system, space group P4bm with a = 8.7404(8)A and c = 8.136(1)A, Z = 2. The structure was determined from 484 reflections collected with a Nonius CAD4 diffractometer with MoKα radiation.
M.P. Crosnier, D. Guyomard, A. Verbaere, Y. Piffard, M. Tournoux   +4 more
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NbO/Nb2O5 core–shells by thermal oxidation

Journal of the European Ceramic Society, 2013
Abstract Niobium oxides have been reported as an alternative to tantalum, and its oxide, for the production of capacitors, but these materials still require a further and exhaustive study. Understanding the dynamics of the oxidation process from NbO to Nb 2 O 5 is essential to explain and control the properties of a niobium oxide based capacitors ...
Cláudio Nico, Luís Rino, Mariana Matos, Rui Monteiro, Florinda M. Costa, Teresa Monteiro, Manuel P.F. Graça   +6 more
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Ein dreidimensionales Koordinationspolymer mit erweiterter NbO-Struktur

Angewandte Chemie, 1999
Die Kombination von quadratisch-planaren [Ni(CN)4]2−-Ionen mit Ph3Sn+-Ionen fuhrt zu 1, einem dreidimensionalen Koordinationspolymer mit einer erweiterten NbO-Struktur. Das (Ph3Sn)2Ni(CN)4-Gerust (schematisch ohne Phenylgruppen und Solvensmolekule dargestellt) enthalt einen grosen zentralen Hohlraum, der durch Ph3SnOH-, Acetonitril- und Wassermolekule ...
Tianyan Niu, Xiqu Wang, Allan J. Jacobson   +2 more
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Hydrothermal synthesis and structures of Ba3(NbO)2(PO4)4 and Co3(NbO)2(PO4)4(H2O)10

Journal of Materials Chemistry, 2000
The new niobium phosphates Ba3(NbO)2(PO4)4 (1) and Co3(NbO)2(PO4)4(H2O)10 (2) have been synthesized in single crystal form by hydrothermal reactions at 250 °C and 170 °C respectively. The crystal structures have been determined from X-ray diffraction data. Both compounds contain NbP2O9 complex chains as a fundamental structural unit.
Xiqu Wang, Lumei Liu, Allan J. Jacobson
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Experimental, quantum chemical and NBO/NLMO investigations of pantoprazole

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2015
The complete vibrational assignment and analysis of the fundamental modes of pantoprazole (PPZ) was carried out using the experimental FT-IR, FT-Raman and UV-Vis data and quantum chemical studies. The observed vibrational data were compared with the wavenumbers derived theoretically for the optimized geometry of the compound from the DFT-B3LYP gradient
P, Rajesh, S, Gunasekaran, T, Gnanasambandan, S, Seshadri   +3 more
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Niobium persulfide complexes: synthesis and structural characterization of [Et4N][NbO(S2)2(bpy)]·DMF, [PPN][NbO(CS3)(S2)(bpy)] and [Et4N][NbO(S2C2(CO2Me)2)(S2)(bpy)]·DMF complexes

Polyhedron, 2001
The novel monomeric niobium persulfide complex, [Et 4 N][NbO(S 2 ) 2 (bpy)]·DMF ( I ) was synthesized by the reaction of NbO(SPh) 4 − with elemental sulfur in the presence of 2,2′-dipyridyl in DMF. The reaction of I with carbon disulfide (CS 2 ) and dimethylacetylene dicarboxylate (DMA) affords [PNP][NbO(CS 3 )(S 2 )(bpy)] ( II ) and [Et 4 N][NbO(S
Byung Ju Kim, Jung Woo Park, Sang Man Koo   +2 more
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Spectroscopic properties, NLO, HOMO–LUMO and NBO of maltol

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2014
Maltol (3-hydroxy-2-methyl-4pyrone) is widely known as metal ions chelator with many practical applications in catalysis, medicine and food chemistry. The FTIR and FT-Raman spectra of maltol have been recorded in the region 4000-400 and 4000-50 cm(-1), respectively.
V, Krishnakumar, D, Barathi, R, Mathammal, J, Balamani, N, Jayamani   +4 more
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???????????????????????? ?????????????????????????????? ?????????????????????????????????? ???????????????? ???? ???????????? (K, Na)NbO???

2015
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