Acid–Base Interactions in the Dichloroacetic Acid–N,N-Dimethylformamide System as Found from IR Spectroscopic Data

2004 ◽  
Vol 45 (5) ◽  
pp. 634-639 ◽  
Author(s):  
V. D. Maiorov ◽  
G. I. Voloshenko ◽  
N. B. Librovich
Keyword(s):  
Spectroscopic Data ◽  
Dichloroacetic Acid ◽  
Acid Base ◽  
Ir Spectroscopic

Effect of the Surface Properties of γ-Al2O3 on the Conversion of Methanol into Dimethyl Ether According to in situ IR-Spectroscopic Data

2020 ◽  
Vol 61 (1) ◽  
pp. 137-144 ◽  
Author(s):  
V. A. Matyshak ◽  
V. A. Sadykov ◽  
O. N. Silchenkova ◽  
G. I. Lin ◽  
A. Ya. Rozovskii
Keyword(s):  
Surface Properties ◽  
Dimethyl Ether ◽  
Spectroscopic Data ◽  
In Situ Ir ◽  
Ir Spectroscopic

Ion-molecular composition of the methanesulfonic acid-water system from IR spectroscopic data

1985 ◽  
Vol 34 (7) ◽  
pp. 1366-1371 ◽  
Author(s):  
A. P. Kirilova ◽  
V. D. Maiorov ◽  
A. I. Serebryanskaya ◽  
N. B. Librovich ◽  
E. N. Gur'yanova
Keyword(s):  
Spectroscopic Data ◽  
Water System ◽  
Methanesulfonic Acid ◽  
Molecular Composition ◽  
Acid Water ◽  
Ir Spectroscopic

Acid-base properties of modified aluminas

1982 ◽  
Vol 47 (8) ◽  
pp. 2044-2060 ◽  
Author(s):  
E. A. Paukshtis ◽  
P. I. Soltanov ◽  
E. N. Yurchenko ◽  
Květa Jirátová
Keyword(s):  
Carbon Monoxide ◽  
Ir Spectroscopy ◽  
Relative Proportion ◽  
Total Acidity ◽  
Acid Base ◽  
Pure Alumina ◽  
Oh Groups ◽  
Concentration Of Ions ◽  
Ir Spectroscopic ◽  
Base Properties

Acid-base properties of the pure alumina and aluminas modified by addition of various ions were determined by IR spectroscopic and Benesi method. The quality and concentration of OH groups of alumina samples containing SO42-, F-, Cl-, Na+, Zn2+ and Mg2+ ions were determined by IR spectroscopy, Pyridine, benzonitrile and carbon monoxide were used to determine the concentration and strength of aprotic centres and deuteriochloroform was used to determine the concentration and strength of basic centres. The results allowed to evaluate changes in the above properties caused by changes in the concentration of ions in alumina. It was found that the total acidity of modified aluminas determined by Benesi method correlates well with the relative proportion of acidic OH groups in the total spectrum of OH groups.

Lithiated oxazolinyloxiranes and oxazolinylaziridines: key players in organic synthesis

2014 ◽  
Vol 86 (6) ◽  
pp. 913-924 ◽  
Author(s):  
Saverio Florio ◽  
Leonardo Degennaro ◽  
Rosmara Mansueto ◽  
Biagia Musio ◽  
Filippo M. Perna ◽  
...  
Keyword(s):  
Ab Initio Calculations ◽  
Ab Initio ◽  
Organic Synthesis ◽  
Spectroscopic Data ◽  
Chemical Properties ◽  
Structural Features ◽  
Addition Reactions ◽  
Electronic Effects ◽  
Key Players ◽  
Ir Spectroscopic

AbstractThis paper focuses on α-lithiated oxazolinyloxiranes and oxazolinylaziridines, their generation, reactions, and synthetic applications. The ability of the oxazoline ring in providing stabilization to such α-heterosubstituted carbanions either through electronic effects and coordinative action has been stressed as well as the contribution to the configurational stability or instability of such species. IR spectroscopic data, multinuclear NMR investigations, and ab initio calculations planned to get insights on chemical properties and structural features have been carried out. A number of new reactions including alkylations, addition reactions, hydroxyalkylations, cyclopropanations, lactonizations, and rearrangements have been discovered, giving access to a variety of substances including: aziridinolactones, epoxylactones, aryl alkanones, polysubstituted cyclopropanes, cyclopropanefused lactones, dihydro-oxazoloisoquinolines, diversely functionalized oxazolines, and products that can be derived from them by synthetic elaboration.

Mechanism of methanol conversion on ZrO2 and 5% Cu/ZrO2 according to in situ IR spectroscopic data

2010 ◽  
Vol 51 (3) ◽  
pp. 428-437 ◽  
Author(s):  
V. A. Matyshak ◽  
O. N. Sil’chenkova ◽  
I. T. Ismailov ◽  
V. F. Tret’yakov
Keyword(s):  
Spectroscopic Data ◽  
Methanol Conversion ◽  
In Situ Ir ◽  
Ir Spectroscopic
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