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

Published online by Cambridge University Press:  21 March 2011

Yiting Li ,
C. Ed Whittle ,
Keith A. Walters ,
Kevin D. Ley  and
Kirk S. Schanze
Yiting Li
Affiliation:
Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, FL 32611-7200
C. Ed Whittle
Affiliation:
Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, FL 32611-7200
Keith A. Walters
Affiliation:
Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, FL 32611-7200
Kevin D. Ley
Affiliation:
Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, FL 32611-7200
Kirk S. Schanze
Affiliation:
Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, FL 32611-7200
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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).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 665: Symposium C – Electronic, Optical and Optoelectronic Polymers and Oligomers , 2001 , C3.7
Copyright
Copyright © Materials Research Society 2001

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References

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