Near-infrared fluorophores containing benzo[c]heterocycle subunits.
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.
Meek
Scott T
ST
Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Nesterov
Evgueni E
EE
Swager
Timothy M
TM
D001555:Benzene Derivatives / Q000138:chemical synthesis* / Q000737:chemistry; D005456:Fluorescent Dyes / Q000138:chemical synthesis* / Q000737:chemistry; D006571:Heterocyclic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D015394:Molecular Structure; D019265:Spectroscopy, Near-Infrared
D001555:Benzene Derivatives; D005456:Fluorescent Dyes; D006571:Heterocyclic Compounds