What is it about?
Telecommunications and other electro-optic applications rely on molecules that scatter or absorb light under very specific circumstances. Traditionally these are so-called push-pull compounds with extended conjugated pi-systems. Extending the design horizon beyond the usual suspects opens up entirely new compounds.
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Why is it important?
Telecommunications applications aren't the only game in town. By tailoring the spectrum at the same time as maintaining electro-optic performance entirely different application regimes can be targeted. In order to accomplish a designed spectrum and electro-optic response, a departure from conventional building blocks is needed.
Perspectives
Our work shows that moving outside of the synthetic comfort zone can lead to fascinating compounds and entirely new properties of molecules. Scientifically there is very little to be gained by repeatedly using the same concepts and tools. The proposed structures pose challenges to synthetic chemistry, but at the same time are great targets for expanding the chemical toolkit.
Dr Berend C Rinderspacher
US ARL
Read the Original
This page is a summary of: The role of aromatic π-bridges in push–pull-chromophores on the transparency-hyperpolarizability tradeoff, Chemical Physics Letters, May 2011, Elsevier,
DOI: 10.1016/j.cplett.2011.03.038.
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