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DOE OSTI · 1646128

Silicon incorporation in polymethine dyes

Pengshung, Monica·Neal, Patrick·Atallah, Timothy L.·Kwon, Junho·Caram, Justin R.·Lopez, Steven A.·Sletten, Ellen M.
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Abstract

Methods to red-shift fluorophores have garnered considerable interest due to the broad utility of low energy light. The incorporation of silicon into xanthene and coumarin scaffolds has resulted in an array of visible and near-infrared fluorophores. In this paper, we extend this approach to polymethine dyes, another popular fluorophore class, performing experimental and computational analyses. We found that when oxygen was replaced with SiMe 2 , bathochromic shifts of up to 121 nm and fluorophores with emission above 900 nm were achieved.

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Pengshung, Monica, Neal, Patrick, Atallah, Timothy L., Kwon, Junho, Caram, Justin R., Lopez, Steven A., Sletten, Ellen M.. 2020-05-01. Silicon incorporation in polymethine dyes. https://doi.org/10.1039/c9cc09671j

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