Patent ID: 7994311
Filing Date: 2011-08-09
Classification: B82Y,C07D,G01N

Abstract:
1. A composition suitable for quantitative and qualitative sensing of +2 transition metals using ratiometric fluorescence capable of forming a stable transition metal complex through internal charge transfer with a target transition metal, and fluorescing in a measurable manner in the presence of the target transition metal, comprising: a. a metal binding, electron donating dipyrrin functionality; b. an electron withdrawing functionality, wherein the electron donating functionality is linked to the electron withdrawing functionality; and c. an attachment base to which the chemosensor can be fixedly attached, the composition comprising the formula: wherein R 3 and R 5 comprise phenyl groups, R 4 comprises a 2-(8-hydroxyquinoline)group, and R 1 and R 2 , and R 6 and R 7 comprise fused 1,2(7-methoxytetrahydronaphthalene).