3-body energy terms in a quartet state of H3
Brailsford, D. F., & Ford, B. (1971). 3-body energy terms in a quartet state of H3. Chemical Physics Letters, 12(1),
Calculations of the 3-body energy term in a quartet (4A2 ) state of H3 (equilateral triangle nuclear-configurations) show a minimum in the 3-body energy for a side length of about 1.3 bohrs.