Related Experiment Video
Updated: Jan 10, 2026

Coulomb Explosion Imaging as a Tool to Distinguish Between Stereoisomers
Published on: August 18, 2017
Chirality-encoded molecular wavefunctions
T Georgiou1, J L Palma2, V Mujica3
1Molecular Biology Interdepartmental Program (MBIDP), The Molecular Biology Institute, University of California, Los Angeles, 611 Charles E. Young Drive East, Los Angeles, California 90095-1570, USA.
Abstract:
For enantiomers, the ground-state charge densities are mapped into one another by spatial reflection, yet-when spin-orbit coupling (SOC) is present-their occupied spinors need not coincide beyond a global phase. SOC encodes spatially varying, intrinsic phase textures whose gradients leave the density unchanged but enter gauge-invariant response combinations. These phases provide a general mechanism for enantiospecific contributions in response tensors. We show that isotropic pseudoscalar signatures arise only from polar-axial couplings, while same-parity couplings remain mirror-even; in oriented samples, anisotropic tensor components can also flip sign. We derive analytical bounds linking SOC-driven spinor phases and amplitude distortions to measurable tensor differences and validate them with relativistic plane wave density-functional calculations on prototypical chiral molecules. Plane waves are chosen because they faithfully represent delocalized SOC phase textures that standard localized bases struggle to capture. Experiments that couple mirror-odd operators to SOC-induced phases in chiral samples can, in principle, yield enantiospecific responses.
Related Concept Videos
Chirality
Chiral objects exhibit a sense of handedness when they interact with another chiral object. For example, our left foot can only fit in the left shoe and not in the right shoe. Achiral objects — objects that have...
Chirality in Nature
Prochirality
Molecules with Multiple Chiral Centers
¹H NMR Chemical Shift Equivalence: Enantiotopic and Diastereotopic Protons
In chiral compounds such as 2-butanol, replacing the methylene hydrogens at C3 produces a pair of...
Fischer Projections

