FT-IR Spectroscopic Study of 1,5-Pentanedithiol and 1,6-Hexanedithiol Adsorbed on NaA, CaA and NaY Zeolites

2005 ◽  
Vol 60 (8-9) ◽  
pp. 633-636 ◽  
Author(s):  
Nuri Öztürk ◽  
Çağrı Çırak ◽  
Semiha Bahçeli
Keyword(s):  
Infrared Spectroscopy ◽  
Ir Spectra ◽  
Spectroscopic Study ◽  
The Other ◽  
Other Hand ◽  
Liquid Phases ◽  
Stretching Vibration ◽  
Ft Ir ◽  
Ir Spectroscopic ◽  
Nay Zeolites

The adsorption of 1,5-pentanedithiol (1,5-PDT) and 1,6-hexanedithiol (1,6-HDT) in liquid phases on NaA (or 4A-type), CaA (or 5A-type) and NaY zeolites has been studied by using infrared spectroscopy. From the IR spectra it is found that the peak positions of the symmetric as well as the antisymmetric modes of the methylene (CH2) groups are observed at almost the same band values for the title dithiolates adsorbed on the A-type and NaY zeolites. On the other hand, the weak SH stretching vibration, observed for all samples, can be attributed to the sulphure atoms of 1,5-PDT and 1,6-HDT coordinatively adsorbed on cationic sites of the zeolites.

FT-IR Spectroscopic Study of 1,3-Diaminopropane Adsorbed on Type A, X and Y Zeolites

2006 ◽  
Vol 61 (7-8) ◽  
pp. 399-401 ◽  
Author(s):  
Nuri Öztürk ◽  
Semiha Bahçeli
Keyword(s):  
Ir Spectra ◽  
Spectroscopic Study ◽  
Spectral Data ◽  
Aliphatic Amine ◽  
Type A ◽  
Y Zeolites ◽  
Ft Ir ◽  
Amine Groups ◽  
Ir Spectroscopic ◽  
Nay Zeolites

The IR spectra of 1,3-diaminopropane adsorbed on NaA (type 4A), CaA (type 5A), NaX (type 13X) and NaY zeolites are reported. From the IR spectral data it can easily be stated that the characteristic NH vibration bands of aliphatic amine groups play an important role in the adsorptions of 1,3-diaminopropane on the mentioned zeolites.

scholarly journals An FT-IR spectroscopic study of the role of hydrogen bonding in the formation of liquid crystallinity for mixtures containing bipyridines and 4-pentoxybenzoic acid

RSC Advances ◽  
2016 ◽  
Vol 6 (110) ◽  
pp. 108164-108179 ◽  
Author(s):  
Alfonso Martinez-Felipe ◽  
Andrew G. Cook ◽  
Jordan P. Abberley ◽  
Rebecca Walker ◽  
John M. D. Storey ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Spectroscopic Study ◽  
Fourier Transform Infrared Spectroscopy ◽  
Fourier Transform Infrared ◽  
Liquid Crystallinity ◽  
Ft Ir ◽  
Ir Spectroscopic

The relationships between liquid crystallinity and hydrogen bonding are studied in mixtures containing 4-pentoxybenzoic acid, 5OBA, and five bipyridines, XBiPy, with spacers having different flexibilities, by Fourier transform infrared spectroscopy.

scholarly journals The Effect of the Coordination Ability on the Mg Plating/Stripping Behavior in Mg(N(CF3SO2)2)2/Glyme Based Electrolytes

2021 ◽  
Author(s):  
Fumihiro Sagane ◽  
Kenta Ogi ◽  
Akinori Konno ◽  
Kiyoshi Kanamura
Keyword(s):  
Crown Ether ◽  
Ir Spectra ◽  
Theoretical Calculation ◽  
The Other ◽  
Other Hand ◽  
Ft Ir ◽  
Coordination Ability

Abstract The effect of the coordination ability of the solvent species on the Mg plating/stripping behavior was investigated. The Mg plating reaction in Mg(N(CF3SO2)2)2/diglyme was inhibited by the equimolar of 15-crown-5 ether (15C5) to Mg2+-ion. On the other hand, Mg plating took place in the solution by reducing the amount of 15C5 less than that of Mg2+-ion. FT-IR spectra showed that 15C5 preferentially solvated Mg2+-ion in the glyme based solutions. The theoretical calculation indicated the interaction between Mg2+-ion and each O atom in 15C5 was stronger than that with diglyme or larger sized crown ether. The results showed that the coordination ability of the solvent species could be the critical for the Mg plating reaction.

scholarly journals Insulin forms amyloid in a strain-dependent manner: An FT-IR spectroscopic study

2004 ◽  
Vol 13 (7) ◽  
pp. 1927-1932 ◽  
Author(s):  
Wojciech Dzwolak ◽  
Vytautas Smirnovas ◽  
Ralf Jansen ◽  
Roland Winter
Keyword(s):  
Spectroscopic Study ◽  
Dependent Manner ◽  
Ft Ir ◽  
Ir Spectroscopic ◽  
Strain Dependent

scholarly journals Effect of additional side groups on the vibrational frequencies of benzoquinone molecules

BIBECHANA ◽  
2016 ◽  
Vol 14 ◽  
pp. 66-76
Author(s):  
Nabin Kumar Raut ◽  
Hari Prasad Lamichhane
Keyword(s):  
Ir Spectra ◽  
Gas Phase ◽  
Vibrational Frequencies ◽  
The Other ◽  
Methyl Groups ◽  
Computational Investigation ◽  
Strongly Coupled ◽  
Solvent Phase ◽  
Other Hand

The present work enumerates detailed computational investigation into the IR spectra in gas phase and in solvent of 1, 4- Benzoquinone family (benzoquinone (BQ), duroquinone (DQ), plastoquinone (PQ), ubiquinone (UQ), and dimethoxy dimethyl benzoquinone (MQo)). In  the spectra of BQ, PQ, and DQ, we observed separate intense carbonyl (C=O) and C=C bands respectively around 1730 cm-1 (intense), 1645 cm-1 (weak). On the other hand, for UQ and MQo, three prominent bands around 1652, 1703, and 1733 cm-1 were observed, where two C=O modes were uncoupled but one of the carbonyl is strongly coupled with C=C vibrations. The additional methyl groups downshift the intense carbonyl bands and upshift C=C mode frequencies. The carbonyl modes further downshifted in the solvent phase calculation.BIBECHANA 14 (2017) 66-76

scholarly journals Shining Light on Indium Oxide Gas Sensors at Work: A Combined Operando Raman/UV-Vis/FT-IR Spectroscopic Study

Proceedings ◽  
2019 ◽  
Vol 14 (1) ◽  
pp. 11 ◽  
Author(s):  
Sebastian Berka ◽  
Viktoriya Fleischer ◽  
Christian Hess
Keyword(s):  
Metal Oxide ◽  
Spectroscopic Study ◽  
Indium Oxide ◽  
Gas Sensors ◽  
Economic Interest ◽  
Mode Of Operation ◽  
Ft Ir ◽  
Metal Oxide Gas Sensors ◽  
Ir Spectroscopic

Understanding the mode of operation of metal-oxide gas sensors (e.g., SnO2, In2O3) is of great scientific and economic interest. [...]

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