Premium
Tunneling and Parity Violation in Trisulfane (HSSSH): An Almost Ideal Molecule for Detecting Parity Violation in Chiral Molecules
Author(s) -
Fábri Csaba,
Horný Ľuboš,
Quack Martin
Publication year - 2015
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201500801
Subject(s) - parity (physics) , quantum tunnelling , molecule , electroweak interaction , enantiomer , chromophore , chemistry , quantum , physics , chemical physics , quantum mechanics , stereochemistry
Measuring the parity‐violating energy difference Δ pv E between the enantiomers of chiral molecules is a major challenge of current physical‐chemical stereochemistry. An important step towards this goal is to identify suitable molecules for such experiments by means of theory. This step has been made by calculations for the complex dynamics of tunneling and electroweak quantum chemistry of parity violation in the “classic” molecule trisulfane, HSSSH, which satisfies the relevant conditions for experiments almost ideally, as the molecule is comparatively simple and parity violation clearly dominates over tunneling in the ground state. At the same time, the barrier for stereomutation is easily overcome by the S−H infrared chromophore.