Etude comparée des spectres d'absorption dans le proche infrarouge des complexes 1–1 entre l'eau et les bases, en mélanges ternaires'

1974 ◽  
Vol 52 (6) ◽  
pp. 915-923 ◽  
Author(s):  
André Burneau ◽  
Jacques Corset
Keyword(s):  
Carbon Tetrachloride ◽  
Water Molecule ◽  
Extinction Coefficient ◽  
Ternary Mixtures ◽  
Proton Acceptor ◽  
Acceptor Molecule ◽  
Vibrational Assignment ◽  
Weak Bases ◽  
Intense Absorption ◽  
Water Base

The spectra of the complexes involving a water molecule and a proton acceptor molecule are obtained by using ternary mixtures water – base – carbon tetrachloride. The vibrational assignment of these spectra is performed through a prior calculation and by examining the shape of the absorptions and their frequencies according to the base. With the complexes HOH … B, it is observed that the bands related to the v(011) combinations, which involve the free OH group, are narrower than v(110) and have always a larger extinction coefficient. In the 7000–7300 cm−1 region, the most intense absorption is the v(101) combination with the weak bases, but the &([a-z]+);(002) overtone with the strong ones.

COMPLEXES OF STANNIC IODIDE WITH AROMATIC HYDROCARBONS

1965 ◽  
Vol 43 (5) ◽  
pp. 1272-1278 ◽  
Author(s):  
J. F. Murphy ◽  
D. E. Baker
Keyword(s):  
Carbon Tetrachloride ◽  
Complex Formation ◽  
Aromatic Hydrocarbon ◽  
Aromatic Hydrocarbons ◽  
Extinction Coefficient ◽  
Regular Solutions ◽  
Benzene Toluene ◽  
Yield Values ◽  
Complex Stabilities ◽  
Iodide Complex

Spectrophotometric measurements on solutions of stannic iodide were found to provide evidence for complex formation with aromatic hydrocarbons. Calculations, based on spectra for mixed solutions of benzene and stannic iodide in carbon tetrachloride, yield values of 0.26 for the equilibrium constant (mole fraction), 28 400 1/mole cm for the molar extinction coefficient of the benzene – stannic iodide complex. Kinetic evidence indicates that the order of decreasing complex stabilities is from xylene to toluene to benzene. The formation of stannic iodide – aromatic hydrocarbon complexes provides an explanation for the discrepancy between measured solubilities of stannic iodide in benzene, toluene, and xylene, and the solubilities predicted by the Hildebrand theory of regular solutions.

scholarly journals A METHOD OF ANALYSIS FOR THE SYSTEM: BENZENE – ETHYL ALCOHOL – CARBON TETRACHLORIDE

1947 ◽  
Vol 25b (3) ◽  
pp. 228-242 ◽  
Author(s):  
A. N. Campbell ◽  
S. I. Miller
Keyword(s):  
Carbon Tetrachloride ◽  
Ethyl Alcohol ◽  
Liquid Mixtures ◽  
Ternary Mixtures ◽  
Refractive Indices ◽  
Binary And Ternary Mixtures

The densities and refractive indices (Nc) of binary and ternary mixtures of benzene, ethyl alcohol, and carbon tetrachloride have been determined at 25 °C. From these data, a method for the analysis of ternary liquid mixtures of these components has been developed. The limit of accuracy in the analysis of ternary mixtures of the pure components is 0.3%. The method can be applied to the analysis of commercial materials with an accuracy of 2.0%.

scholarly journals THE USE OF INFRARED SPECTROPHOTOMETRY FOR THE ESTIMATION OF SMALL QUANTITIES OF SOME HALOGENATED HYDROCARBONS

1953 ◽  
Vol 31 (4) ◽  
pp. 328-337 ◽  
Author(s):  
L. Breitman ◽  
E. W. R. Steacie
Keyword(s):  
Quantitative Analysis ◽  
Carbon Tetrachloride ◽  
Gas Phase ◽  
Infrared Spectra ◽  
Methyl Chloride ◽  
Ternary Mixtures ◽  
Halogenated Hydrocarbons ◽  
Infrared Spectrophotometry ◽  
Absorption Bands ◽  
Binary And Ternary Mixtures

The infrared spectra of chloral, carbon tetrachloride, and chloroform have been determined between 1500 and 650 cm.−1 over a range of pressures in the gas phase. Absorption bands suitable for the quantitative analysis of binary and ternary mixtures of the components have been selected and their peak intensities shown to obey Beer's Law over the range of pressures studied. Ternary mixtures have been analyzed from the spectra with an accuracy of about 20%.The spectra of dichloromethane and methyl chloride have also been measured under comparable conditions.

scholarly journals Hydrogen Bonding Interaction and Structural Change in Some Aliphatic Alcohol-Water Complexes: A Quantum Mechanical MP4 Study

2020 ◽  
Vol 32 (7) ◽  
pp. 1581-1588
Author(s):  
Mrinal J. Bezbaruah ◽  
Benzir Ahmed ◽  
Ibrahim Ali ◽  
Madhab Upadhyaya ◽  
Bipul Bezbaruah
Keyword(s):  
Hydrogen Bonding ◽  
Water Molecule ◽  
Interaction Energy ◽  
Aliphatic Alcohol ◽  
Proton Acceptor ◽  
Quantum Mechanical ◽  
Hydrogen Bonding Interaction ◽  
Fourth Degree ◽  
Bonding Interaction ◽  
Alcohol Water

Hydrogen bonding interaction in low molecular weight alcohols or lower alcohol (viz. methanol and ethanol) with water molecule is quite common. But, due to the presence of bulky groups in higher alcohols (viz. propanol, butanol and pentanol and their isomers) the hydrogen bonding interaction between alcohol and water molecule is significantly different. In alcohol-water heterodimer complexes, water plays an important role in the stability of such system, alcohol will be interacting with water molecule either as proton donor or proton acceptor mode. Quantum mechanical method, fourth degree Møller-Plesset (MP4) perturbation theory is an important tool for computing the interaction energy between the alcohol-water complexes. The interaction energy (IE) and natural bond orbital (NBO) calculations for some common aliphatic alcohol-water complexes (e.g. methanol, ethanol, propanol, butanol and pentanol) and their isomers were computed by using MP4 method.

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