Reactivity of M(en)Cl 2 (M = Pd II/Pt II, en = 1,2-diaminoethane) with N, N′-bis(salicylidene)- p-phenylenediamine: Binding with hexafluorobenzene

Abstract

Schiff base N, N′-bis(salicylidene)- p-phenylenediamine (LH 2) complexed with Pt(en)Cl 2 and Pd(en)Cl 2 provided [Pt(en)L] 2 · 4PF 6 ( 1) and Pd(Salen) ( 2) (Salen = N, N′-bis(salicylidene)-ethylenediamine), respectively, which were characterized by their elemental analysis, spectroscopic data and X-ray data. A solid complex obtained by the reaction of hexafluorobenzene (hfb) with the representative complex 1 has been isolated and characterized as 3 ( 1 · hfb) using UV–Vis, NMR ( 1H, 13C and 19F) data. A solid complex of hfb with a reported Zn-cyclophane 4 has also been prepared and characterized 5 ( 4 · hfb) for comparison with complex 3. The association of hfb with 1 and 4 has also been monitored using UV–Vis and luminescence data.