Publication Date:
2019-06-27
Description:
Existing theoretical H2 pair potentials are investigated. We develop a spherically symmetric potential applicable to solid H2. It yields a ground-state energy of -98.7 K (experimental values range from -93.5 to -101 K). Pressure-volume data are also in excellent agreement with experiment between 0 and 25 kbar. Second virial coefficients using this potential are consistently too low. When an anisotropic pair potential is used, agreement becomes very good.
Keywords:
PHYSICS, ATOMIC, MOLECULAR, AND NUCLEAR
Type:
Physical Review Letters; 32; Apr. 8
Format:
text