pH-tunable phosphorescence and light harvesting in cucurbit[8]uril host–guest assemblies
Shubhra Kanti Bhaumik, Sourav Kumar Panda, Supratim Banerjee
Abstract
Host-guest assemblies of halo-phenyl pyridine derivatives and cucurbit[8]uril (CB[8]) exhibited pH-responsive room temperature phosphorescence (RTP) in aqueous media. Moreover, they acted as efficient light-harvesting systems demonstrating triplet-singlet energy transfer to various acceptor dyes.
Topics & Concepts
PhosphorescencePhotochemistryHost (biology)ChemistryEnergy transferPyridineSinglet stateAqueous mediumAcceptorHost–guest chemistryAqueous solutionFluorescenceSupramolecular chemistryMoleculeOrganic chemistryChemical physicsCondensed matter physicsBiologyEcologyExcited statePhysicsQuantum mechanicsNuclear physicsLuminescence and Fluorescent MaterialsMolecular Sensors and Ion DetectionSupramolecular Chemistry and Complexes