Syntheses and characterization of new palladium(II) complexes with functionally substituted cyclopentadienyl groups

Abstract

Thallium [1-( p-tolylimino)-2-methylpropyl]cyclopentadienide, Tl[C 5H 4C(=NC 6H 4CH 3)CH(CH 3) 2], was prepared and treatment of the salt with [{PdCl 2(PREt 2)} 2] (R = Ph and Et) yielded mononuclear palladium(II) complexes, [Pd{η 5-C 5H 4C(=NC 6H 4CH 3)CH(CH 3) 2}Cl(PREt 2)], with an imidoyl-substituted η 5-cyclopentadienyl group. In addition, [Pd(η 5-C 5H 4-COY)Cl(PPhEt 2)] (Y = CH 3 and OCH 3) complexes were obtained from the sodium salts of their substituted cyclopentadienyl groups. These new compounds were characterized by means of 1H and 13C NMR and IR spectroscopy.