Abstract
We compare the recent results of Ramos, Pyper, and Malli [Phys. Rev. A 38, 2729 (1988)] on sixth-row hydrides with our previous results and experiment. It is shown that the four-component Dirac-Fock method yields poor ’s and an unrealistic description of bonding compared to previous calculations and experiment.
- Received 11 December 1989
DOI:https://doi.org/10.1103/PhysRevA.43.2581
©1991 American Physical Society