Thermodynamics of the molecular association of tri-n-octylphosphine oxide and haloalkanes using gas-liquid chromatography

The gas chromatographic retention behavior of nineteen halogenated hydrocarbons and of seven saturated hydrocarbons was measured at four temperatures from 55 to 65°C in tri-n-octylphosphine oxide (TOPO) and at 60°C in squalane (SQ). Thermodynamic functions of solution in TOPO were computed from thes...

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Autores principales: Castells, Reynaldo César, Nardillo, Ángel Miguel
Formato: Articulo
Lenguaje:Inglés
Publicado: 1985
Materias:
Química
Tri-n-octylphosphine oxide
Haloalkanes
Infinite dilution activity coefficients
Molecular association
Gas chromatography
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/139202
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-139202
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Tri-n-octylphosphine oxide
Haloalkanes
Infinite dilution activity coefficients
Molecular association
Gas chromatography
spellingShingle Química
Tri-n-octylphosphine oxide
Haloalkanes
Infinite dilution activity coefficients
Molecular association
Gas chromatography
Castells, Reynaldo César
Nardillo, Ángel Miguel
Thermodynamics of the molecular association of tri-n-octylphosphine oxide and haloalkanes using gas-liquid chromatography
topic_facet Química
Tri-n-octylphosphine oxide
Haloalkanes
Infinite dilution activity coefficients
Molecular association
Gas chromatography
description The gas chromatographic retention behavior of nineteen halogenated hydrocarbons and of seven saturated hydrocarbons was measured at four temperatures from 55 to 65°C in tri-n-octylphosphine oxide (TOPO) and at 60°C in squalane (SQ). Thermodynamic functions of solution in TOPO were computed from these data. Strongly negative deviations from the ideal behavior were interpreted in terms of halogenated hydrocarbon+TOPO association, and the equilibrium constants were calculated by reference to the inert solvent SQ. The larger equilibrium constants correspond to solutes with a definite proton donor capability. The substitution of Cl for Br, however, produces an increase in the association constants suggesting the existence of other interaction mechanisms. Complexing of halogenated hydrocarbons with TOPO is markedly greater than with ethers, thioethers or tertiary amines.
format Articulo
Articulo
author Castells, Reynaldo César
Nardillo, Ángel Miguel
author_facet Castells, Reynaldo César
Nardillo, Ángel Miguel
author_sort Castells, Reynaldo César
title Thermodynamics of the molecular association of tri-n-octylphosphine oxide and haloalkanes using gas-liquid chromatography
title_short Thermodynamics of the molecular association of tri-n-octylphosphine oxide and haloalkanes using gas-liquid chromatography
title_full Thermodynamics of the molecular association of tri-n-octylphosphine oxide and haloalkanes using gas-liquid chromatography
title_fullStr Thermodynamics of the molecular association of tri-n-octylphosphine oxide and haloalkanes using gas-liquid chromatography
title_full_unstemmed Thermodynamics of the molecular association of tri-n-octylphosphine oxide and haloalkanes using gas-liquid chromatography
title_sort thermodynamics of the molecular association of tri-n-octylphosphine oxide and haloalkanes using gas-liquid chromatography
publishDate 1985
url http://sedici.unlp.edu.ar/handle/10915/139202
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AT nardilloangelmiguel thermodynamicsofthemolecularassociationoftrinoctylphosphineoxideandhaloalkanesusinggasliquidchromatography
bdutipo_str Repositorios
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