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Spectral Properties and Chi(3) of Metallo Meso-Tetra-Substituted Tetrabenzporphyrins

Published online by Cambridge University Press:  15 February 2011

Masato Nakashima ,
Joseph F. Roach ,
Walter G. Yeomans  and
David M. Alabran
Masato Nakashima
Affiliation:
US Army Natick Research, Development, and Engineering Center, Natick, MA 01760-5020.
Joseph F. Roach
Affiliation:
US Army Natick Research, Development, and Engineering Center, Natick, MA 01760-5020.
Walter G. Yeomans
Affiliation:
US Army Natick Research, Development, and Engineering Center, Natick, MA 01760-5020.
David M. Alabran
Affiliation:
US Army Natick Research, Development, and Engineering Center, Natick, MA 01760-5020.
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Abstract

We have reported high Chi(3) values observed for metallo meso-tetra (substituted phenyl) tetrabenzporphyrins (metallo TPTBP). In order to find the relationship between the molecular structures and the Chi(3) values, we have attempted to find relationships between these values and the electronic spectral properties of the compounds. For a series of Zn TPTBPs, we found that the B and Q band peak wavelengths and the peak height ratio between these two bands are related as one would expect from such a series of porphyrins. The Chi(3) values appear to be directly related to the Q/B peak height ratio. For a series of metallo meso-tetra(p-methoxyphenyl) tetrabenzporphyrins, such a correlation of Chi(3) with the spectral properties of various metal species was not apparent. Strategies to increase the Chi(3) values of metallo TPTBP on the basis of these observations are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 374: Symposia ZB – Materials for Optical Limiting , 1994 , 179
Copyright
Copyright © Materials Research Society 1995

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