Supramolecular chirality: a caveat in assigning the handedness of chiral aggregates
K. Swathi, Cristina Sissa, Anna Painelli, K. George Thomas
Abstract
The handedness of a supramolecular chiral aggregate is often assigned based on the sign of circular dichroism spectra, adopting the exciton chirality method. However, the method does not properly account for the nature of intermolecular interactions. We introduce a generalized picture on the use of the sign of chiral signals in determining the helicity of chiral aggregates, rooted in the exciton model, supported by TD-DFT results.
Topics & Concepts
Chirality (physics)Supramolecular chiralitySupramolecular chemistryChemistryNanotechnologyStereochemistryCrystallographyMaterials sciencePhysicsChiral symmetryCrystal structureParticle physicsNambu–Jona-Lasinio modelQuarkMolecular spectroscopy and chiralitySupramolecular Self-Assembly in MaterialsMolecular Sensors and Ion Detection