THERMODYNAMIC CHARACTERISTICS OF THE SPECIFIC INTERACTIONS BETWEEN ALKENES AND CHROMATOGRAPHIC PACKINGS WITH CHEMICALLY BONDED COPPER(II) COMPLEXES

Measurements of retention parameters carried out for a group of hydroc arbons enabled calculation of such thermodynamic variables as free ene rgy of adsorption (DELTAG(a)), heat of adsorption (-DELTAH(a)) and ent ropy of adsorption (DELTAS(a)). These parameters enabled analysis of s pecific interaction between alkene and metal complex bonded to the sil ica surface. In this work the packings with copper(II) complexes bonde d to the silica surface through diphenylphosphine, thiol and cyano gro ups, were studied. As adsorbates linear, branched, saturated and unsat urated C6 hydrocarbons were chosen. The packings without bonded metal were used as references.