Intramolecular Charge Transfer and Ultrafast Nonradiative Decay in DNA-Tethered Asymmetric Nitro- and Dimethylamino-Substituted Squaraines
Nicholas D. Wright, Jonathan S. Huff, Matthew S. Barclay, Christopher K. Wilson, German Barcenas, Katelyn M. Duncan, Maia Ketteridge, Olena M. Obukhova, Alexander I. Krivoshey, Anatoliy L. Tatarets, Ewald Terpetschnig, Jacob C. Dean, William B. Knowlton, Bernard Yurke, Lan Li, Olga A. Mass, Paul H. Davis, Jeunghoon Lee, Daniel B. Turner, Ryan D. Pensack
Abstract
can indeed be increased by functionalizing dyes with electron donating and withdrawing substituents and that, in certain classes of dyes such as these asymmetric squaraines, strategies may be needed to ensure long τ, e.g., by rigidifying the π-conjugated network.
Topics & Concepts
PhotochemistryIntramolecular forceExcited stateChemistryFluorescenceDipoleDensity functional theoryUltrafast laser spectroscopyConjugated systemChemical physicsSpectroscopyComputational chemistryOrganic chemistryPolymerAtomic physicsPhysicsQuantum mechanicsPhotochemistry and Electron Transfer StudiesMolecular Junctions and NanostructuresSpectroscopy and Quantum Chemical Studies