Parity Violation Dominates the Dynamics of Chirality in Dichlorodisulfane

Stereomutation dynamics in hydrogen peroxide

“…We may mention in this context as examples on the one hand hydrogen bond dynamics in isotopomers of hydrogen fluoride dimers [46][47][48][49][50] and inversion in Ammonia isotopomers [51][52][53][54][55] and on the other hand stereomutation dynamics in hydrogen peroxide and related systems [56][57][58][59][60][61][62][63][64]. Hydrogen peroxide in its equilibrium geometry exists in two enantiomeric forms separated by a low torsional barrier (of about 360 cm À1 ) conventionally labelled the P and M enantiomers (see Fig.…”

“…Indeed, hydrogen peroxide has been a prototype molecule for theoretical calculations of molecular parity violating potentials (see [67][68][69][70][71] and the reviews [72,73] for further references). We have discussed the importance of the interplay of parity violation with tunneling dynamics in this context [58][59][60][61][62][63]72,73].…”

The Search for Parity Violation in Chiral Molecules

“…We mention that in 1986, Quack and coworkers proposed an experiment making use of an achiral excited intermediate state of welldefined parity [120,121], based on an earlier study by Harris and Stodolsky on tunneling in the presence of weak interactions [122]. They suggested to investigate molecules like Cl 2 S 2 [123]. This allows one to isolate the PV energy shift in the ground state as a spectroscopic combination difference.…”

Mode-selective stereomutation tunneling and parity violation in HOClH+ and H2Te2 isotopomers

“…This ion is isoelectronic to HSOH which has been generated in mass spectroscopic experiments [40] and more recently in bulk [41]. This molecule also falls in the general series of axially chiral molecules HXYH, for which we have already presented extensive calculations of parity violation and tunneling in our previous work [21][22][23][24][25][26][27]32,33,42,43]. However, it seems that, so far, parity violation has not been studied for an ionic species of this type.…”

“…The recent theoretical discovery that E pv is predicted to be one to two orders of magnitude larger [21][22][23][24] than anticipated from earlier calculations [18] has given new impetus to the field and the present work contributes to the new effort in this field [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33]. From both an experimental and theoretical point of view, it would be of interest to study particularly simple prototype molecules or ions.…”