Fluorescence Spectroscopic Studies of (Acetamide + Sodium/Potassium Thiocyanates) Molten Mixtures: Composition and Temperature Dependence

2010 ◽  
Vol 114 (15) ◽  
pp. 5066-5081 ◽  
Author(s):  
Biswajit Guchhait ◽  
Harun Al Rasid Gazi ◽  
Hemant K. Kashyap ◽  
Ranjit Biswas
Keyword(s):  
Temperature Dependence ◽  
Spectroscopic Studies ◽  
Sodium Potassium

scholarly journals Sodium-potassium interdiffusion in potassium-rich alkali feldspar II: Composition- and temperature-dependence obtained from cation exchange experiments

2014 ◽  
Vol 314 (9) ◽  
pp. 1300-1318 ◽  
Author(s):  
A.-K. Schaffer ◽  
E. Petrishcheva ◽  
G. Habler ◽  
R. Abart ◽  
D. Rhede ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Cation Exchange ◽  
Alkali Feldspar ◽  
Sodium Potassium

scholarly journals Особенности нелинейного СВЧ-отклика многозонных сверхпроводников на основе ферроселенида натрия-калия (Na-=SUB=-0.3-=/SUB=-K-=SUB=-0.7-=/SUB=-)-=SUB=-x-=/SUB=-Fe-=SUB=-2-y-=/SUB=-Se-=SUB=-2-=/SUB=-

2018 ◽  
Vol 60 (11) ◽  
pp. 2116
Author(s):  
Е.Е. Пестов ◽  
Ю.Н. Ноздрин ◽  
А.И. Елькина ◽  
Ю.C. Ерин ◽  
М. Лю ◽  
...  
Keyword(s):  
Magnetic Susceptibility ◽  
Temperature Dependence ◽  
Single Crystals ◽  
Near Field ◽  
Sodium Potassium ◽  
Third Harmonic ◽  
The Third ◽  
Microwave Microscopy ◽  
Temperature Dependences ◽  
Harmonic Power

Abstract —Temperature dependences of the third-harmonic power for the (Na_0.3K_0.7)_ x Fe_2 – _ y Se_2 sodium–potassium ferroselenide single crystals have been investigated by nonlinear near-field microwave microscopy. The temperature dependence of magnetic susceptibility at a frequency of 100 kHz for this compound has been measured. The experimental results suggest a double-gap structure of the (Na_0.3K_0.7)_ x Fe_2 – _ y Se_2 superconductor.

11B—NMR- spektroskopische Untersuchungen an wäßrigen Polyboratlösungen / 11B NMR Spectroscopic Studies on Aqueous Polyborate Solutions

1979 ◽  
Vol 34 (8) ◽  
pp. 1078-1083 ◽  
Author(s):  
Ralf Janda ◽  
Gert Heller
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Aqueous Solutions ◽  
Nmr Spectra ◽  
Spectroscopic Studies ◽  
Sodium Potassium ◽  
Nuclear Magnetic Resonance Spectra ◽  
11B Nmr ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

The 11B nuclear magnetic resonance spectra of sodium, potassium and ammonium polyborates in aqueous solutions, - as a function of concentration and pH - , provide information of the hydrolysis equilibria. Two 11B NMR lines are observed in aqueous solutions of Na[B5O6(OH)4], K[B5O6(OH)4] and NH4[B5O6(OH)4]. Only one 11B NMR line is recorded in aqueous solutions of (NH4)2[B4O5(OH)4] and Na2[B4O5(OH)4]. The results of the 11B NMR spectra are discussed and compared with the results obtained from Raman studies of aqueous polyborate solutions

Temperature dependence Raman spectroscopic studies of Pb(Yb0.5Ta0.5)O3

2008 ◽  
Vol 46 (1) ◽  
pp. 22-27 ◽  
Author(s):  
Dibyaranjan Rout ◽  
V. Subramanian ◽  
V. Sivasubramanian
Keyword(s):  
Temperature Dependence ◽  
Spectroscopic Studies ◽  
Raman Spectroscopic

SPECTROSCOPIC STUDIES OF ALCOHOLS: VI. INTRAMOLECULAR HYDROGEN BONDS IN ETHANOLAMINE AND ITS O- AND N-METHYL DERIVATIVES

1965 ◽  
Vol 43 (11) ◽  
pp. 2970-2977 ◽  
Author(s):  
P. J. Krueger ◽  
H. D. Mettee
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Temperature Dependence ◽  
Spectroscopic Studies ◽  
Intramolecular Hydrogen Bonds ◽  
Distinct Band ◽  
Conformational Equilibria ◽  
Methyl Derivatives ◽  
Intramolecular Hydrogen

The competitive intramolecular [Formula: see text] hydrogen bonding in ethanolamine and N-methylethanolamine has been studied in dilute C2Cl4 solution by means of the temperature dependence of the fundamental OH and NH stretching bands. Of the three conformers identified for each of these compounds, the least stable shows a distinct band which is assigned to a "terminal" OH group involved in an intramolecular [Formula: see text] hydrogen bond. Enthalpy differences between conformers are reported and discussed, and compared with those found for the conformational equilibria in 2-methoxyethylamine and N,N-dimethyl-ethanolamine.

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