Linear and bent triatomic molecules are not qualitatively different!

Weakly bound triatomic He2Li and He2Na molecules

We study the existence of stable bound states of triatomic molecules containing two helium atoms and one alkali atom X (X = Li, Na) and examine the dependence of their binding energies on the mass of the constituent atoms. The three-body systems are solved within the adiabatic approximation in hyperspherical coordinates using the He–He and He–X pair van der Waals interactions that are available...

Building Diatomic and Triatomic Superatom Molecules.

In this study, we have developed a method to create Co6Se8 superatoms in which we program the metal-ligand bonds. We exclusively form the Co6Se8 core under simple reaction conditions with a facile separation of products that contain differential substitution of the core. The combination of Co2(CO)8 and PR3 with excess Se gives the differentially and directionally substituted superatoms, Co6Se8(...

Socialism and Capitalism: Are They Qualitatively Different Socioeconomic Systems?

Study of strong R–P and spin–orbit vibronic coupling effects in linear triatomic molecules

The vibronic coupling between P and R electronic states of a linear molecule is considered with the inclusion of the spin–orbit coupling of the P electronic state, employing the microscopic (Breit–Pauli) spin–orbit coupling operator in the single-electron approximation. The 6 · 6 Hamiltonian matrix in a diabatic spin-electronic basis is derived by an expansion of the molecular Hamiltonian in po...

Dimensional perturbation theory for vibration-rotation spectra of linear triatomic molecules

A very efficient large-order perturbation theory is formulated for the nuclear motion of a linear triatomic molecule. To demonstrate the method, all of the experimentally observed rotational energies, with values of J almost up to 100, for the ground and first excited vibrational states of CO2 and for the ground vibrational states of N2O and of OCS are calculated. All coupling between vibration...