Difluorobora-s-diazaindacene dyes as highly selective dosimetric reagents for fluoride anions

Difltiorobora-s-diazaindacene derivatives are shown to report fluoride ions selectively in acetone solutions; both absorption and emission characteristics are drastically altered, and as a result, (his hitherto unknown reaction transforms the BODIPY(R) class of dyes into highly selective chromogenic and dual channel fluorogenic reagents for fluoride. (C) 2004 Elsevier Ltd. All rights reserved.