Share Email Print
cover

Proceedings Paper

Effect of electronic structure on molecular first hyperpolarizabilities of highly conjugated (polypyridyl)metal-(porphinato)zinc(II) chromophores
Author(s): Ivan R. Miloradovic; Yuxia Zhao; Kurt Wostyn; Inge Asselberghs; H. Tetsuo Uyeda; Andre P. Persoons; Koen J. Clays; Michael J. Therien
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Electronic structural modifications of previously reported highly conjugated (polypyridyl)metal-(porphinato)zinc(II) NLO chromophores have been carried out. A primary focus of these modifications probed the role played by the porphyrin macrocycle in effecting large molecular hyperpolarizabilities; specifically, its meso-aryl substituents were replaced with electron withdrawing perfluoroalkyl groups. In doing so, we are effectively lowering HOMO and LUMO of the porphyrin fragment by 0.35eV while retaining the extensive mixing of B, Q, and CT states, and enforcing head-to-tail transition dipole alignment of the component metal-polypyridyl and porphyrin based chromophoric building blocks; this enables supermolecular structures with singly degenerate excited states polarized along the long donor-to-acceptor (D-to-A) charge transfer axis. This work will be placed in the context of ongoing electrooptic experiments and efforts aimed at fabricating new materials from these supermolecular chromophoric species.

Paper Details

Date Published: 10 November 2003
PDF: 4 pages
Proc. SPIE 5212, Linear and Nonlinear Optics of Organic Materials III, (10 November 2003); doi: 10.1117/12.509147
Show Author Affiliations
Ivan R. Miloradovic, Univ. of Pennsylvania (United States)
Yuxia Zhao, Katholieke Univ. Leuven (Belgium)
Kurt Wostyn, Katholieke Univ. Leuven (Belgium)
Inge Asselberghs, Katholieke Univ. Leuven (Belgium)
H. Tetsuo Uyeda, Univ. of Pennsylvania (United States)
Andre P. Persoons, Katholieke Univ. Leuven (Belgium)
Koen J. Clays, Katholieke Univ. Leuven (Belgium)
Michael J. Therien, Univ. of Pennsylvania (United States)


Published in SPIE Proceedings Vol. 5212:
Linear and Nonlinear Optics of Organic Materials III
Mark G. Kuzyk; Manfred Eich; Robert A. Norwood, Editor(s)

© SPIE. Terms of Use
Back to Top