Thermodynamic properties of M− C ₆₀ dimers immersed in an inert gas

Abstract

When fullerenes 60 capture an alkali metal M − C_60 , they acquire a powerful permanent dipole. This suggests that if the system is in an inert atmosphere, like Argon, they tend to form dimers (M − C_60)2 , producing a gas whose thermodynamical properties can be studied. On this work, we focus on the degrees of freedom that appear when the dimer has formed. The fraction of ( M − C_60)2 that can be created is calculated by using the standard physical statistics and can be graphed against the temperature on the 273.15 K and 373.15 K interval.

Solution to the schrödinger equation for bound states of polar molecules using shallow neural networks

“…The radial part of the problem takes the form given in (8), which is the main interest in this work.…”

“…Between two of these monomers can appear a van der Waals interaction (VDWI) that allows the formation of the dimer. Through arguments from statistical physics, it has been demonstrated [8] that the reaction M C 60…”

“…On the other hand, at very low density, the spectral lines are weaker, also making detection challenging. Given this situation, for the purpose of studying these spectral lines, it becomes necessary to isolate the ( ) M C 60 2 in its gas phase in a container where its density can be controlled (see appendix in [8]).…”

“…It is possible to separate the gas mixture using the effusion method, see figure A1 and table A2 in[8]. According to tables 5-7 presented in this work, the dissociation energies must be in the ranges presented below:…”