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 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.

Characterisation of essential oil plants from Turkey by IR and Raman spectroscopy

2005 ◽  
Vol 39 (2) ◽  
pp. 249-256 ◽  
Author(s):  
Hartwig Schulz ◽  
Gülcan Özkan ◽  
Malgorzata Baranska ◽  
Hans Krüger ◽  
Musa Özcan
Keyword(s):  
Raman Spectroscopy ◽  
Essential Oil ◽  
Ir And Raman Spectroscopy ◽  
Ir And Raman

FT-IR and Raman Spectroscopy of C58BN

1997 ◽  
pp. 271-273
Author(s):  
K. Antonova ◽  
P. Byshewski ◽  
G. Zhizhin ◽  
J. Piechota ◽  
M. Marhevka
Keyword(s):  
Raman Spectroscopy ◽  
Ir And Raman Spectroscopy ◽  
Ft Ir ◽  
Ir And Raman

Enhanced Failure Analysis (FA) of Organic Contamination Using Submicron Simultaneous IR and Raman Spectroscopy: Breakthrough Developments of Optical Photothermal IR (O-PTIR)

2020 ◽  
Author(s):  
D. Jay Anderson ◽  
Mustafa Kansiz ◽  
Michael Lo ◽  
Eoghan Dillon ◽  
Curtis Marcott
Keyword(s):  
Raman Spectroscopy ◽  
Failure Analysis ◽  
Semiconductor Manufacturing ◽  
Rapid Identification ◽  
Organic Contamination ◽  
Premature Failure ◽  
Specific Element ◽  
Ir And Raman Spectroscopy ◽  
Semiconductor Manufacturer ◽  
Ir And Raman

Abstract Rapid identification of organic contamination in the semi and semi related industry is a major concern for research and manufacturing. Organic contamination can affect a system or subsystem’s performance and cause premature failure of the product. As an example, in February 2019 the Taiwan Semiconductor Manufacturing Company (TMSC), a major semiconductor manufacturer, reported that a photoresist it used included a specific element which was abnormally treated, creating a foreign polymer in the photoresist resulting in an estimated loss of $550M [1].

Structural properties of Li2CO3–BaCO3 system derived from IR and Raman spectroscopy

2001 ◽  
Vol 596 (1-3) ◽  
pp. 151-156 ◽  
Author(s):  
P. Pasierb ◽  
S. Komornicki ◽  
M. Rokita ◽  
M. Rȩkas
Keyword(s):  
Raman Spectroscopy ◽  
Structural Properties ◽  
Ir And Raman Spectroscopy ◽  
Ir And Raman
Sign in / Sign up

Export Citation Format

Share Document