A New Topological Index for Molecular Probes Used in Inverse Gas Chromatography

✍ Scribed by Eric Brendlé; Eugène Papirer

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 160 KB
• Volume: 194
• Category: Article
• ISSN: 0021-9797
• DOI: 10.1006/jcis.1997.5105

✦ Synopsis

evaluation of the potential of a solid surface to exchange The application of the new morphological index x T , which is specific interactions, one obviously will inject polar probes an extension of Wiener's index for the evaluation of the retention that will interact with a polar solid surface both through data of apolar and polar solutes used in inverse gas chromatogradispersive and specific forces. By specific interactions, we phy, is described. Indeed, x T performs satisfactorily, surpassing understand interactions other than London or dispersive inthe other molecular descriptors employed so far. Examples of apteractions. Those include polar, ionic, electrical, magnetic, plications on silica and graphite samples are presented. It appears metallic, and acid-base interactions. Acid-base interactions that the new index allows a unique evaluation of the Lewis acidplay a determinant role when solid surfaces are dispersed in base surface characteristics of solid surfaces. ᭧ 1997 Academic Press organic media such as polymers, solvents, or resins (3).