Abstract

The considerable diffusivity difference of substituted benzenes and of alcohols in octan-1-ol¹ suggests a strong influence of specific solute-solvent interactions (hydrogen bonding). For the quantification of these effects we dried to detect correlations between the diffusion coefficients in octan-1-ol and the near infrared (NIR)-spectra of the solutions. In our study we chose four aliphatic alcohols, benzene, phenol and seven substituted benzenes. By means of different methods of multivariate analysis (PCR, PLS) we tested the possibilities of the classification and prediction of diffusion coefficients using NIR-spectra. From the preliminary results and under the usual assumption that NIR spectra refer to specific solute–solvent interactions it can be concluded that these interactions also play an important role in the diffusive transport mechanism in liquid octan-1-ol.

© 1998 NIR Publications

The Near Infrared Absorption Spectra of Liquid Benzene and Toluene

James Barnes and W. H. Fulweiler
J. Opt. Soc. Am. 15(6) 331-336 (1927)

The Infrared Absorption Spectra of Mixtures of Alcohol and Water

Dudley Williams, R. D. Weatherford, and E. K. Plyler
J. Opt. Soc. Am. 26(4) 149-152 (1936)

Photocatalytic alkoxylation of benzene with 3-cyano-1-methylquinolinium ion

Kei Ohkubo, Takaki Kobayashi, and Shunichi Fukuzumi
Opt. Express 20(S2) A360-A365 (2012)

On the Infrared Absorption Spectra of Several Gases

C. F. Meyer, D. W. Bronk, and A. A. Levin
J. Opt. Soc. Am. 15(5) 257-265 (1927)

Measurements of benzene concentration by difference-frequency laser absorption spectroscopy

Weidong Chen, Fabrice Cazier, Frank Tittel, and Daniel Boucher
Appl. Opt. 39(33) 6238-6242 (2000)