  Photoelectron circular dichroism in the one-photon detachment of a model
methane-like chiral anionic system is studied theoretically by the single
center method. The computed chiral asymmetry, characterized by the dichroic
parameter $\beta_1$ of up to about $\pm3\%$, is in a qualitative agreement with
very recent experimental observations on photodetachment in amino acid anions
[P. Kr\"uger and K.-M. Weitzel, Angew. Chem. Int. Ed. 60, 17861 (2021)]. Our
findings confirm a general assumption that the magnitude of PECD is governed by
the ability of an outgoing photoelectron wave packet to accumulate
characteristic chiral asymmetry from the short-range part of the molecular
potential.
