Structure of the ground states in the isotope substituted H+3 molecular ions

The bound state properties and general structure of some H+3-like molecular ions are determined from the results of direct numerical computations. All our calculations are performed with the use of non-adiabatic variational expansion written in the basis of five-body (= ten-dimensional) gaussoids. A large number of geometrical properties and expectation values of many inter-particle delta-functions are presented for the H2D+, H2T+, D2H+, D2T+, T2H+, T2D+ and HDT+ two-electron five-body ions. The problem of inter-particle correlations in five-body systems and related problem of adiabatic divergence in the H+3-like ions are also briefly discussed.