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The Relationship Between Molecular Structure and Spectroscopic Properties of a Series of Transition Metal-Containing Phenylacetylene Oligomers and Polymers

Published online by Cambridge University Press:  21 March 2011

Thomas M. Cooper ,
Daniel G McLean  and
Joy E. Rogers
Thomas M. Cooper
Affiliation:
Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson, Air Force Base, OH 45433, USA
Daniel G McLean
Affiliation:
Science Applications International Corporation, Dayton, OH 45434, USA
Joy E. Rogers
Affiliation:
Technical Management Concepts International, Dayton, OH 45433, USA
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Abstract

To develop novel nonlinear dyes for photonic applications, we synthesized a series of transition metal-containing phenylacetylene oligomers and polymers. The optical properties of these compounds were measured by UV/Vis, fluorescence, and flash photolysis experiments. As the number of oligomer units increased, the transition energies decreased. A solvatochromism experiment suggested the fluorescing state was different from the absorbing state. As a group, the spectra of the polymeric versions of these complexes were red shifted from the spectra of the oligomers. The polymeric complexes had less clear trends relating the number of oligomer units to transition energies. A comparison of a low molecular weight and a high molecular weight polymer showed the degree of polymerization caused spectroscopic shifts comparable to the number of phenylacetylene units in the monomer unit.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 665: Symposium C – Electronic, Optical and Optoelectronic Polymers and Oligomers , 2001 , C5.21
Copyright
Copyright © Materials Research Society 2001

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