Hydrocarbon bridged metal complexes, XLIV. Donor–acceptor substituted Schiff bases of polyenes with transition metals 2

Abstract

Schiff bases 1–10 were obtained by condensation of l-valine and o-aminophenol with donor and ferrocenyl substituted carotinoid aldehydes. From these Schiff bases and chloro-bridged complexes [ (R 3P) (Cl)M( μ-Cl)] 2 (M=Pd, Pt), [ ( η 5-C 5Me 5) (Cl)Ir ( μ-Cl)] 2 and [ ( p-cymene) (Cl)Ru ( μ-Cl)] 2 a series of mono and heterobimetallic compounds 11–45 was synthesized. The structures of [ p-MeO–C 6H 4–CHN–C 6H 4–O–Ru (Cl) ( p-cymene)] 16, [ferrocenyl–CHN–C 6H 4–O–Ir (Cl) (Cp∗)] 23, [ ( p-Me 2NC 6H 4–CHCH–C(Me)CH–CHCH–CHC(Me)–CHN–C 6H 4–O–Pd (Cl)PEt 3] 42 and of the condensation product from [ ( η 6-aniline)Cr (CO) 3] with 9-ferrocenyl-2,7-dimethylnonatetraene-1-al 46 were determined by X-ray diffraction.