RELATIONSHIPS BETWEEN GAS-CHROMATOGRAPHIC RETENTION INDEXES AND MOLECULAR-STRUCTURE OF AROMATIC-HYDROCARBONS

Regularities of the gas chromatographic behaviour of C6C13 alkylbenzenes, C10C13 alkylnaphthalenes and C8C11 alkyl aryl carbamates are described by structural models containing Van der Waals volumes and molecular connectivity indices of different orders. The dependences are shown to be approximated by seven-factor (for alkylbenzenes), five-factor (for alkylnaphthalenes) and three- or five-factor (for alkyl aryl carbamates) polynomials of the first power. The correlation coefficients are 0.998-1.000. © 1990.