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"Push-no-pull" porphyrins for second harmonic generation imaging

Abstract:
The established approach to design a molecule with strong second-order nonlinear optical (NLO) activity is to connect an electron-donor to an electron-acceptor via a π-conjugated bridge, to generate push-pull system. Surprisingly, we have found that dyes with large first hyperpolarizabilities, and which exhibit strong second harmonic generation (SHG), can be created just by attaching an electron-donor to a porphyrin. The free-base porphyrin core is sufficiently electron-deficient that the hyperpolarizability does not increase on addition of a pyridinium electron-acceptor. © 2013 The Royal Society of Chemistry.
Publication status:
Published

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Publisher copy:
10.1039/c3sc22306j

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Journal:
CHEMICAL SCIENCE More from this journal
Volume:
4
Issue:
5
Pages:
2024-2027
Publication date:
2013-01-01
DOI:
EISSN:
2041-6539
ISSN:
2041-6520


Language:
English
Pubs id:
pubs:395460
UUID:
uuid:3103c7ac-af54-46c0-a550-1353f72d7dae
Local pid:
pubs:395460
Source identifiers:
395460
Deposit date:
2013-11-17

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