Mononuclear arene ruthenium complexes containing 5,6-diphenyl-3-(pyridine-2-yl)-1,2,4-triazine as chelating ligand: Synthesis and molecular structure

摘要

The mononuclear cations of the general formula [(eta(6)-arene)RuCl(pdpt)](+) (pdpt = 5,6-diphenyl-3-(pyridine-2-yl)-1,2,4-triazine; arene = C6H6 (1); C6H5Me (2); p-(PrC6H4Me)-C-i (3); C6Me6 (4)) have been synthesised from 5,6-diphenyl-3-(pyridine-2-yl)-1,2,4-triazine (pdpt) and the corresponding chloro complexes [(eta(6)-C6H6)Ru(mu-Cl)Cl](2), [(eta(6)-C6H5Me)Ru(mu-Cl)Cl](2), [(eta(6)p-(PrC6H4Me)-C-i)Ru(mu-Cl)Cl](2) and [(eta(6)-C6Me6) Ru(mu-Cl)Cl](2), respectively. The X-ray crystal structure analyses of [1][PF6] center dot (C6H6)(2.5) and [2][PF6] center dot (CH3CN)(2) reveal a typical piano-stool geometry around the metal centre and in the crystal packing a complexed networks of intermolecular interactions.