Time-dependent dynamics of nuclear spin symmetry and parity violation in dichlorodisulfane (ClSSCl) during and after coherent radiative excitation

Parity and nuclear spin symmetry are approximate symmetries, which for many primary processes in molecular spectroscopy kinetics lead to almost exact constants of the motion. The symmetric isotopomer dichlorodisulfane 35Cl32S32S35Cl (disulfur dichloride) is chiral with two enantiomers, each has also isomers (ortho para isomers). Electroweak quantum chemistry predicts a small ‘parity violating’ energy difference ΔpvE between ground states enantiomers (M being more stable than P by about 0.17feV). Furthermore recent microwave indicated ‘forbidden’ transitions ortho isomers. These phenomena allow comparative study time-dependent dynamics parity violation molecule first time. We report dynamical calculations coherent radiative excitation complex manifold polyads hyperfine structure ClSSCl. demonstrate complete (near 100%) transfer population from an pure para-ground state excited state. Short-pulse chromophore shows intramolecular interconversion under isolation after pulse on time scale few nanoseconds microsecond depending polyad. preparation exotic ‘chameleon states’, superpositions eigenstates corresponding ortho- para- at same results discussed relation strong separation scales isomerisation (nanoseconds microseconds) change (seconds) possible experiments measure this molecule. compare rate induced thermal black body radiation, temperature, occurring less seconds 100 years.