Interaction potential and infrared absorption of endohedral H2 in C60.

摘要: We have measured the temperature dependence of infrared spectra a hydrogen molecule trapped inside C60 cage, H2@C60, in range from 6 to 300 K and analyzed excitation spectrum by using five-dimensional model vibrating rotor spherical potential. The electric dipole moment is induced translational motion endohedral H2 gives rise an absorption process where one quantum created or annihilated, ΔN = ±1. Some fundamental transitions, 0, are observed as well. rotation unhindered but coupled motion. isotropic translation–rotation coupling part potential anharmonic different ground excited vibrational states H2. frequency rotational constant smaller than those gas phase. assignment lines ortho- para-H2 confirmed measuring para enriched sample H2@C60 i...