scholarly journals Structural modifications of Cu(II) 12-tungstophosphoric acid salit studied by IR and Raman spectroscopy

2000 ◽  
Vol 65 (5-6) ◽  
pp. 407-415 ◽  
Author(s):  
Ubavka Mioc ◽  
Marija Todorovic ◽  
Snezana Uskokovic-Markovic ◽  
Zoran Nedic ◽  
Vojislav Stamenkovic ◽  
...  
Keyword(s):  
Phase Transformations ◽  
Structural Phase ◽  
Host Lattice ◽  
Tungstophosphoric Acid ◽  
Impedance Measurements ◽  
Structural Modifications ◽  
Keggin Anions ◽  
Ir And Raman ◽  
Xrpd Analysis ◽  
Structural Phase Transformations

In this paper local processes and structural phase transformations of the copper salt of 12-tungstophosphoric acid are investigated. The structural phase transformations were followed through bands, characteristic for the host lattice, in the IR and Raman spectra. The results of these investigations, as well as those of XRPD analysis and impedance measurements as a function of temperature show that some local processes provoke the change in the secondary structure of the Keggin anions.

scholarly journals A spectroscopic investigation of 12-tungstophosphoric acid alkali salts

2000 ◽  
Vol 65 (5-6) ◽  
pp. 399-406 ◽  
Author(s):  
Ubavka Mioc ◽  
Marija Todorovic ◽  
Snezana Uskokovic-Markovic ◽  
Zoran Nedic ◽  
Nada Bosnjakovic
Keyword(s):  
Raman Spectroscopy ◽  
Spectroscopic Investigation ◽  
Dynamic Equilibrium ◽  
Host Lattice ◽  
Tungstophosphoric Acid ◽  
Heteropoly Acids ◽  
Ir And Raman Spectroscopy ◽  
Keggin Anions ◽  
Ir And Raman ◽  
Alkali Salts

In this paper the latest results of our continuing investigation of heteropoly acids and their salts are reported. Specially attention was paid to the influence of cations on the dynamic equilibrium of protonic species, as well as on the structure of the host lattice itself, i.e., the Keggin anions. The investigations were done by IR and Raman spectroscopy within the range of 1200.40 cm-1.

scholarly journals Structural phase transformations in annealed Pt/Mn/Fe trilayers

2020 ◽  
Vol 32 (36) ◽  
pp. 365404
Author(s):  
I O Kruhlov ◽  
O V Shamis ◽  
N Y Schmidt ◽  
M V Karpets ◽  
S Gulyas ◽  
...  
Keyword(s):  
Phase Transformations ◽  
Structural Phase ◽  
Structural Phase Transformations

Pressure-Induced Structural Phase Transformations in Silicon Nanowires

2005 ◽  
Vol 5 (5) ◽  
pp. 729-732 ◽  
Author(s):  
H. K. Poswal ◽  
Nandini Garg ◽  
Surinder M. Sharma ◽  
E. Busetto ◽  
S. K. Sikka ◽  
...  
Keyword(s):  
Phase Transformations ◽  
Silicon Nanowires ◽  
Structural Phase ◽  
Structural Phase Transformations

scholarly journals Non-equilibrium Structural Phase Transformations in Atomically Thin Transition Metal Dichalcogenides

2020 ◽  
Vol 26 (S2) ◽  
pp. 632-633
Author(s):  
Pawan Kumar ◽  
James Horwath ◽  
Alexandre Foucher ◽  
Chrisopher Price ◽  
Natalia Acero ◽  
...  
Keyword(s):  
Transition Metal ◽  
Phase Transformations ◽  
Structural Phase ◽  
Transition Metal Dichalcogenides ◽  
Metal Dichalcogenides ◽  
Structural Phase Transformations ◽  
Non Equilibrium
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