Metal-to-Ligand Charge Transfer Excited States in π-Conjugated Systems

Abstract

This paper overviews recent work that examined the optical properties of mono-disperse, PPE-based π-conjugated oligomers that contain a 2,2-bipyridine-5,5’-diyl metal coordinating unit. The photophysical properties of the free oligomers and metallated oligomers that contain the -Ru(bpy)22+ and -Re(CO)3Cl transition metal complexes coordinated to the bpy-diyl unit have been characterized by absorption, photoluminescence and transient absorption spectroscopy. In addition, we report the photophysics of a novel organometallic “square” that features “sides” consisting of a PPE-type π-conjugated oligomer and “corners” that consist of (dbubpy)PtII(acetylide)2 units (where dbubpy = 4,4’-di-tert-butyl-2,2’-bipyridine).

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Correspondence to Yiting Li.

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Li, Y., Whittle, C.E., Walters, K.A. et al. Metal-to-Ligand Charge Transfer Excited States in π-Conjugated Systems. MRS Online Proceedings Library 665, 37 (2000). https://doi.org/10.1557/PROC-665-C3.7

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