ChemInform Abstract: A New Reaction of the Sodium Salt of 2-Nitroethanol. X-Ray Studies of the Sodium Salt of 2-Oxo-3-hydroxypropionic Acid Oxime, 2-Bromo-2- nitropropane-1,3-diol and the Model Structure 2,2-Dinitropropane-1,3- diol.

ChemInform ◽  
2010 ◽  
Vol 27 (51) ◽  
pp. no-no
Author(s):  
B. S. FEDOROV ◽  
N. I. GOLOVINA ◽  
V. V. ARAKCHEEVA ◽  
R. F. TROFIMOVA ◽  
L. O. ATOVMYAN
Keyword(s):  
Sodium Salt ◽  
Model Structure ◽  
X Ray ◽  
Hydroxypropionic Acid

X-Ray Investigations on Molten Cu-Sb Alloys

1994 ◽  
Vol 49 (4-5) ◽  
pp. 530-534 ◽  
Author(s):  
Th. Halm ◽  
H. Neumann ◽  
W. Hoyer
Keyword(s):  
Electronic Properties ◽  
Structure Factor ◽  
Correlation Functions ◽  
Pair Correlation ◽  
Model Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Structure Factors ◽  
Diffraction Structure ◽  
Eutectic Concentration

Abstract Using X-ray diffraction, structure factors and pair correlation functions of several molten Cu-Sb alloys and pure antimony were determined and compared with published structural, thermodynamic and electronic properties. The eutectic concentration Cu37Sb63 was investigated in dependence on temperature, and a model structure factor was calculated applying a segregation model.

Adsorption of Hydrophobically Modified Poly(acrylic acid) Sodium Salt at the Air/Water Interface by Combined Surface Tension and X-ray Reflectivity Measurements

Langmuir ◽  
1999 ◽  
Vol 15 (6) ◽  
pp. 2112-2119 ◽  
Author(s):  
Frédéric Millet ◽  
Michael Nedyalkov ◽  
Benjamin Renard ◽  
Patrick Perrin ◽  
Françoise Lafuma ◽  
...  
Keyword(s):  
Surface Tension ◽  
Acrylic Acid ◽  
Sodium Salt ◽  
Water Interface ◽  
X Ray ◽  
Hydrophobically Modified ◽  
Acid Sodium Salt ◽  
Air Water Interface ◽  
Poly Acrylic Acid

Base mediated dimerization of 2-tetradecynoic acid

1983 ◽  
Vol 61 (11) ◽  
pp. 2449-2454 ◽  
Author(s):  
Suzanne R. Abrams ◽  
J. Wilson Quail ◽  
Louis T. J. Delbaere
Keyword(s):  
Sodium Salt ◽  
Michael Addition ◽  
Dimethyl Ester ◽  
Crystallographic Analysis ◽  
Strong Base ◽  
X Ray ◽  
Crude Product ◽  
Monomethyl Ester

Under the influence of the very strong base, the sodium salt of 1,2-diaminoethane in 1,2-diaminoethane, 2-tetradecynoic acid is converted to 3-tetradecynoic acid (35%) and a novel dimer 3. Compound 3 ((Z)-2-(1-dodecynyl)-3-undecyl-pent-2-en-1,5-dioic diacid) is isolated as the monomethyl ester 1 after treatment of the crude product with methanolic HCl. The structures of 1 and 3 are deduced from an X-ray crystallographic analysis of the dimethyl ester 2 obtained by reaction of 1 with diazomethane. The dimer 3 is thought to arise from Michael addition of the dianion 4 of 3-tetradecynoic acid with the sodium salt of 2-tetradecynoic acid.

Spectra of sodium and potassium azide crystals coloured by ultra-violet and X -ray radiation

1959 ◽  
Vol 251 (1264) ◽  
pp. 27-40 ◽  
Keyword(s):  
Sodium Salt ◽  
Ultra Violet ◽  
Liquid Nitrogen Temperature ◽  
Mechanism Of Formation ◽  
Potassium Salts ◽  
Absorption Bands ◽  
X Ray ◽  
Rate Of Increase ◽  
Potassium Azide ◽  
Sodium And Potassium

The spectra of sodium and potassium azide crystals that had been coloured by irradiation with both ultra-violet and X-ray radiation for varying periods at liquid-nitrogen temperature have been recorded. From these results and from measurements of the rate of increase of intensity of the various absorption bands with time, together with the changes observed on raising the temperature, the nature and mechanism of formation of some of the centres are deduced. The different behaviour of the sodium and potassium salts under irradiation and the different effects produced by the two types of irradiation, particularly with the sodium salt, are discussed.

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