Open AccessSilicon incorporation in polymethine dyes
Author(s) -
Monica Pengshung,
Patrick Neal,
Timothy Atallah,
Junho Kwon,
Justin R. Caram,
Steven Lopez,
Ellen M. Sletten
Publication year - 2020
Publication title -
chemical communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.837
H-Index - 333
eISSN - 1364-548X
pISSN - 1359-7345
DOI - 10.1039/c9cc09671j
Subject(s) - silicon , photochemistry , chemistry , nanotechnology , materials science , organic chemistry
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. Here, 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.