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Relationships between gas chromatographic retention indices and molecular structure of aromatic hydrocarbons

โœ Scribed by V.A. Gerasimenko; V.M. Nabivach

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
639 KB
Volume
498
Category
Article
ISSN
1873-3778

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โœฆ Synopsis

Regularities of the gas chromatographic behaviour of C6-C13 alkylbenzenes, ClO-C1 3 alkylnaphthalenes and C-C1 I 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 allcylbenzenes), five-factor (for alkylnaphthalenes) and three-or five-factor (for alkyl aryl carbamates) polynomials of the first power. The correlation coefficients are 0.998-l .OOO.

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Based on the influence of the binding energy in gas chromatographic retention, relationships between the retention indices, 1, on squalane and the heats of formation, AHf, of hydrocarbons (alkanes, alkenes, alkynes and alkylbenzenes) are found. Mean information indices of distances, pb for these com