Jozef Hodyl PhD Thesis - Theses - Flinders University

HTPE appendages interacting with each other.HTPE appendagesinteracting with the cavitybase.Figure 6.5Diagrammatic depiction of the possible orientation of HTPE appendages on the pendantarms of immobilised receptor Si-GPS-[Cd(TriPTrac)(ClO 4 ) 2 , 96.6.1.5 Guest inclusion with aminobenzoatesA further study was conducted to ascertain whether other guest molecules substitutedwith hydrogen bond donor groups would display a similar trend to that of thehydroxybenzoate guest species in aqueous conditions. The guest molecules chosen totest this proposition were a set of amino substituted benzoates: p-aminobenzoate, m-aminobenzoate and o-aminobenzoate. It was thought that these guest molecules maymimic with N-H ... π the hydrogen bonding interactions postulated forhydroxybenzoate guests in identical conditions. To check the validity of thisproposition guest inclusion of a series of similarly substituted nitrobenzoate guestmolecules: p-nitrobenzoate, m-nitrobenzoate and o-nitrobenzoate were alsoinvestigated. The structures of these guests are depicted in Figure 6.6.R = NH 2 or NO 2Figure 6.6Illustration of the structure of para, meta and ortho substituted-aminobenzoate andnitrobenzoate guest species.107