The Synthesis and Characterization of [RuII (bpy) 2 (biphen) ] (PF6)2 and [ (bpy) 2RuII (biphen) RuII (bpy) 2] (PF6)4

Abstract

A new bidentate polypyridine bridging ligand (biphen), produced by the condensation of 1,10-phenanthroline-5,6-dione with 5,6-diamino-phenanthroline has been synthesized and characterized. In addition the monometallic complex [(bpy)2RuII(biphen)](PF6)2 and the bimetallic complex [(bpy)2RuII(biphen)RuII(bpy)2](PF6)4 have been prepared. The complexes were characterized by elemental analysis, by 1H-NMR spectroscopy and by cyclic voltsmmetry(CV).

The results of these analyses seem to indicate that biphen acts like two independent units when attached to a - RuII(bpy)2 fragment. a bipyridine portion and a phenazine portion. Moreover, CV data on the bimetalllic complex indicated no special stability for the mixed-valence form, ruling out any significant metal-metal interaction.

Date of Award	1995
Original language	American English
Awarding Institution	Eastern Illinois University
Supervisor	Mark E. McGuire (Supervisor)