Paracyclophane molecules for two-photon absorption applications
US7232913B2 · kind B2 · utility
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Key dates
| Filing date | Sep 28, 2004 |
| Grant date | Jun 19, 2007 |
| Priority date | — |
| Expiry date | Apr 1, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3613
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Chromophores having two-photon or other multi-photon absorptivity. The chromophores are based on a structure of four stilbenoid groups attached to a paracyclophane core, where each stilbenoid group comprises a nitrogen-containing organic group attached by its nitrogen atom to a stilbenoid arm. In particular embodiments, at least one of the stilbenoid groups includes a sulfonium, ammonium, selenium, iodonium or phosphonium moiety. The chromophores have utility as photo-polymerization initiators and two-photon fluorophores for biological imaging.
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