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Synthesis and Characterization of Novel Platinum Acetylide Oligomers

Published online by Cambridge University Press:  15 February 2011

Thomas M. Cooper ,
Benjamin C. Hall ,
Daniel G. McLean ,
Joy E. Rogers ,
Aaron R. Burke ,
Kenneth Turnbull  and
Andrew Weisner
Thomas M. Cooper
Affiliation:
Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, 45433;
Benjamin C. Hall
Affiliation:
Systran, Inc, Dayton, OH, 45431;
Daniel G. McLean
Affiliation:
Science Applications International Corporation, Dayton, OH, 45433;
Joy E. Rogers
Affiliation:
UES, Inc. Dayton, OH, 45432;
Aaron R. Burke
Affiliation:
Anteon Corporation, Dayton, OH, 45431;
Kenneth Turnbull
Affiliation:
Dept. of Chemistry, Wright State University, Dayton, OH, 45435
Andrew Weisner
Affiliation:
Dept. of Chemistry, Wright State University, Dayton, OH, 45435
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Abstract

As part of an effort to develop a spectroscopic structure-property relationship in platinum acetylide oligomers, we have prepared a series of bidentate Pt(PBu3)2L2 compounds. The ligand was the series o-syd-C6H4-CΞC-(C6H4-CΞC)n-H, n = 0,1,2. The terminal oligomer unit consisted of a sydnone group ortho to the acetylene carbon. The compounds were characterized by various methods, including 13C-NMR, ground state absorption, fluorescence, phosphorescence and laser flash photolysis. The acetylenic 13C-NMR resonances showed sydnone influences that decreased with increasing number of monomer units. The ground state absorption spectra were slightly red shifted from those of the baseline oligomers not having a sydnone group. The low temperature emission and excitation spectra showed complex dependence on excitation and emission wavelengths, suggesting the chromphores resided in a distribution of solvent environments and conformations. Finally, broad triplet state absorption spectra were observed, with absorption throughout the visible and near infrared regions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 771: Symposium L – Organic and Polymeric Materials and Devices , 2003 , L4.21
Copyright
Copyright © Materials Research Society 2003

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