Efficient metallation in diphenylether - A convenient route to luminescent platinum(II) complexes

摘要

The synthesis of luminescent platinum(II) complexes is described. The rapid platination of porphyrins and cyclometallating coumarins was performed in diphenylether using platinum(II) bis(benzoni-trile)dichloride and platinum(II) bis(dimethyl sulfoxide)dichloride. Compared to conventional methods, the reaction times are lowered dramatically and yields are significantly improved. For the first time, a NIR-emitting platinum(II) complex with tetraphenyltetrabenzoporphyrin was obtained using a direct route starting from phthalimide and phenylacetic acid.