A pressure-induced ratiometric signalling chemosensor: a case of helical anthracenes
Tomokazu Kinoshita, Kei Fujise, Eiji Tsurumaki, Shinji Toyota, Gaku Fukuhara
Abstract
One of the helical anthracenes, [4]HA, in which two fused anthracene ends are spatially arranged top and bottom, exhibits a ratiometric fluorescence response due to the hydrostatic pressure-dependent intramolecular [4+4] photocyclodimerization. This ratiometric signalling comes from the formation of an intramolecular stacked species and its subsequent photoreaction upon hydrostatic pressurization. The ratiometric indexes as a function of hydrostatic pressure may enable us to quantify an unknown pressure in solutions.
Topics & Concepts
Intramolecular forceHydrostatic pressureAnthraceneChemistryFluorescencePhotochemistryStereochemistryOpticsThermodynamicsPhysicsLuminescence and Fluorescent MaterialsMolecular Sensors and Ion DetectionSynthesis and Properties of Aromatic Compounds