Affiliation:
1. Institute of Fundamental Physics (IFF-CSIC), CSIC Serrano 123 28006 Madrid Spain
2. Departamento de Física Universidad Nacional de Colombia, Calle 26 Cra 39, Edificio 404 Bogotá Colombia
3. Escuela de Física Universidad Nacional de Colombia, Sede Medellín A. A. 3840 Medellín Colombia
Abstract
AbstractA water molecule confined inside the C70 fullerene was quantum‐mechanically described using a computational approach within the MCTDH framework. Such procedure involves the development of a full‐dimensional coupled hamiltonian, with an exact kinetic energy operator, including all rotational, translational and vibrational degrees of freedom of the endofullerene system. In turn, through an effective pairwise potential model, the ground and rotationally excited states of the encapsulated H2O inside the C70 cage were calculated, and traced back to the isotropic case of the H2O@C60 endofullerene in order to understand the nature and physical origin of the symmetry breaking observed experimentally in the latter system. Moreover, the computational scheme used here allows to study the quantization of the translational movement of the encapsulated water molecule inside the C70 fullerene, and to investigate the confinement effects in the vibrational energy levels of the H2O@C70 system.
Funder
Ministerio de Ciencia e Innovación
Subject
Physical and Theoretical Chemistry,Atomic and Molecular Physics, and Optics