Hydrogen Molecule#

Investigate the hydrogen molecule and its bond length using different force fields.

Task#

  • Create the H2 molecule using the drawing tool.

  • Optimize the geometry with a variety of force fields and tabulate the resulting bond lengths.

  • Enable display of its orbitals (?)

Solution#

Force field

Bond length (Å)

GAFF

1.10

Ghemical

1.01

MMFF

Error

UFF

0.71

An accurate bond length (see sources) for the molecule is 0.074 nm, so the UFF force field should be used.

See also#

Hydrogen Clusters

Sources#

Hyperphysics data on the hydrogen molecule