L-Alanyl-glycylglycine: FT-IR and Raman spectroscopic evidence for tripeptide packing in a collagenlike arrangement

Biopolymers ◽  
1984 ◽  
Vol 23 (4) ◽  
pp. 623-627 ◽  
Author(s):  
V. Renugopalakrishnan ◽  
P. H. B. Kloumann ◽  
Rajendra S. Bhatnagar
Keyword(s):  
Spectroscopic Evidence ◽  
Raman Spectroscopic ◽  
Ft Ir ◽  
Ir And Raman

Reactions of Alkylamino- and Dialkylaminotriphenylphosphonium Halides with Halogens and Interhalogen Compounds; Formation of Alkylaminotriphenylphosphonium Polyhalides

1983 ◽  
Vol 38 (1) ◽  
pp. 103-107 ◽  
Author(s):  
Hans Zimmer ◽  
Madhusudan Jayawant ◽  
Adel Amer ◽  
Bruce S. Ault
Keyword(s):  
Elemental Analysis ◽  
Spectroscopic Evidence ◽  
Raman Spectroscopic ◽  
The Stability ◽  
Ir And Raman

Abstract Alkylamino-and cycloalkylaminotriphenylphosphonium halides react with elemental halogens or interhalogen compounds to afford alkylamino-or cycloalkylaminotriphenyl-phosphonium trihalides. The stability of these trihalides depends on the cation as well as the trihalide anion. The assignment of a trihalide structure to these compounds was based on elemental analysis and on IR-and Raman spectroscopic evidence. Most stable are the tribromide and [IX2]⊖ salts. During all reactions involving N-alkylamino-and N-cyclo-alkylaminotriphenylphosphonium halides and elemental halogens an N-halogenation of the cation was not observed.

FT-IR and Raman spectroscopic studies on B2O3–PbO–Ag2O glasses dopped with manganese ions

2007 ◽  
Vol 9 (9) ◽  
pp. 850-854 ◽  
Author(s):  
Raluca Ciceo Lucacel ◽  
Carmen Marcus ◽  
V. Timar ◽  
I. Ardelean
Keyword(s):  
Spectroscopic Studies ◽  
Manganese Ions ◽  
Raman Spectroscopic ◽  
Ft Ir ◽  
Ir And Raman

scholarly journals Electrochemical and Spectroscopic Studies of Nanocomposites Laden with BaTiO3-grafted-graphene Oxide

2018 ◽  
pp. 319-327
Author(s):  
S. Padmaja ◽  
R. Nimma Elizabeth
Keyword(s):  
Electrochemical Impedance ◽  
Coulombic Efficiency ◽  
Ion Pairs ◽  
Spectroscopic Studies ◽  
Solid Polymer ◽  
Raman Analysis ◽  
Raman Spectroscopic ◽  
Lithium Sulfur Batteries ◽  
Ft Ir ◽  
Ir And Raman

The electrochemical behavior of lithium-sulfur batteries was investigated by means of electrochemical impedance spectroscopy (EIS). Films of NCPEs (PEO+LiCF3SO3+BaTiO3-g-GO) were cast using a novel hot-press technique. The addition of filler in fractional amount to the solid polymer matrix at room temperature further enhances the ionic conductivity. The membranes were subjected to cycling, FT-IR and Raman spectroscopic analyses. The occurrence of ion-ion pairs interaction has been identified using FT-IR and Raman analysis. Cells with this electrolyte have a high coulombic efficiency of 98% and a high cycling stability.

Hydration of L-tyrosine in Aqueous Solution. An FT-IR and Raman Spectroscopic and Theoretical Study

2010 ◽  
Author(s):  
Ana E. Ledesma ◽  
Christian D. Contreras ◽  
Hernán E. Lanús ◽  
Silvia A. Brandán ◽  
P. M. Champion ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Theoretical Study ◽  
Raman Spectroscopic ◽  
Ft Ir ◽  
Ir And Raman

FT-IR and Raman Spectroscopic Studies on B2O3—PbO—Ag2O Glasses Doped with Manganese Ions.

ChemInform ◽  
2007 ◽  
Vol 38 (50) ◽  
Author(s):  
Raluca Ciceo Lucacel ◽  
Carmen Marcus ◽  
V. Timar ◽  
I. Ardelean
Keyword(s):  
Spectroscopic Studies ◽  
Manganese Ions ◽  
Raman Spectroscopic ◽  
Ft Ir ◽  
Ir And Raman

FT-IR AND RAMAN SPECTROSCOPIC STUDY OF Cr2O3-TeO2-B2O3-SrF2 GLASSES

2006 ◽  
Vol 20 (18) ◽  
pp. 1107-1114 ◽  
Author(s):  
I. ARDELEAN ◽  
N. MUREŞAN ◽  
P. PǍŞCUŢǍ
Keyword(s):  
Spectroscopic Study ◽  
Local Structure ◽  
Glass System ◽  
Spectral Measurements ◽  
Structural Units ◽  
Raman Spectroscopic ◽  
Raman Spectroscopic Study ◽  
Ft Ir ◽  
Raman Spectral ◽  
Ir And Raman

Homogeneous glasses were formed in the Cr 2 O 3- TeO 2- B 2 O 3- SrF 2 system, up to 20 mol% Cr 2 O 3. For these glasses, IR and Raman spectral measurements were carried out in order to elucidate the local structure. The results showed that BO 3 and BO 4 are the main structural units of the glass system and the chromium ions are located in the network. It was evidenced the presence of TeO 3 and TeO 4 units as possible structural units in our glasses.

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