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Abstract
Two palladium(II) complexes with aminopyrene and a derivative have been synthesized and characterized. In complex 1, Pd(apyr)2Cl2 (apyr = 1-aminopyrene), the pyrenyl-π-electrons do not conjugate with d-electrons of the metal, whereas complex 2, Pd(pmpa)Cl2 (pmpa = N-(2-pyridylmethylene)-1-pyrenylamine) is a conjugated, planar molecule. Due to this, the oxidation potential and the electronic spectrum of the pyrenyl group of pmpa is significantly influenced by formation of the complex. Both iodine doped complexes show semiconductor properties (2.4 × 10−4 S cm−1 for 1 and 1.0 × 10−4 S cm−1 for 2). TG-DTG curves for 1 shows a single step decomposition. However, curves for complex 2 show a two-step decomposition, corresponding to the organic ligand pmpa. The iodine doped compounds are more stable than the original complexes. The quantity of doped iodine for 1 and 2 is 23 and 14%, respectively.