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Near-Infrared Fluorophores Containing Benzo[c]heterocycle Subunits

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journal contribution
posted on 17.07.2008, 00:00 by Scott T. Meek, Evgueni E. Nesterov, Timothy M. Swager
The syntheses and spectroscopic properties of eight new push−pull-type near-infrared fluorophores that contain either isobenzofuran or isothianaphthene subunits are presented. The isobenzofuran dyes demonstrate significantly red-shifted absorption compared with their isothianaphthene counterparts, which is attributed to isobenzofuran’s more potent pro-quinoidal character.