Advertisement

Chromatographia

, Volume 58, Issue 1–2, pp 87–96 | Cite as

Relationships Between Retention Data of Benzene and Chlorobenzenes with their Physico-chemical Properties and Topological Indices

  • J. M. Santiuste
  • J. M. Takács
Article

Summary

Relationships between the retention data of benzene and chlorobenzenes, obtained in a number of stationary phases of different polarity, and three topological indices (first-order connectivity index, Wiener's index and Balaban index) as well as several physico-chemical properties (freezing point, boiling point, refraction index, dipole moment, density, molecular mass and vapor pressure) of the solutes were studied. The effect of column temperature on the retention data was studied, and the dependence of the retention data on the connectivity indices was investigated. Retention indices were fit with a multiple linear regression analysis for one to six physico-chemical properties giving r2=0.9952 and 0.9996, and F=1971 and 2471, respectively. The ability of some of these equations to predict the retention index was checked. Principal component analysis supports the obtained results. Excess thermodynamic magnitudes were also evaluated for n-alkanes, benzene and chlorobenzenes, investigating the influence of column temperature and of the solute's structure on the thermodynamic values.

Key Words

Gas chromatography Retention data Principal component analysis Topological indices Chlorobenzenes 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Friedr. Vieweg&Sohn Verlagsgesellschaft mbH 2003

Authors and Affiliations

  1. 1.Department of Structure and Molecular Dynamics. CSICInstitute of Physical Chemistry “Rocasolano”Spain
  2. 2.Gas Chromatographic Research Group for the Study of the Retention Index SystemsHungary

Personalised recommendations