Difference between revisions of "Solution LAB2 guanine 5"
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(Created page with "* Back to the previous page: Electronic properties of isolated molecules#Exercise 5 *To relax reactants and products you can use a template file you can find in ./LAB_2/t...") |
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*To relax reactants and products you can use a template file you can find in ./LAB_2/test_molecules/scf_@mol@_relax.in | *To relax reactants and products you can use a template file you can find in ./LAB_2/test_molecules/scf_@mol@_relax.in | ||
| + | *A special care need to be paid for the O<sub>2</sub> molecule as the ground state is a triplet: | ||
| + | |||
| + | To take this into account, add the following to the SYSTEM namelist of the pw input file: | ||
| + | [[File:oxygen.png|200px|thumb | From: http://www.wikiwand.com/en/Triplet_oxygen | ||
| + | ]] | ||
| + | |||
| + | nspin = 2 | ||
| + | tot_charge = 0.0, | ||
| + | tot_magnetization = 2.0, | ||
| + | |||
| + | or | ||
| + | |||
| + | nspin = 2 | ||
| + | occupations=”smearing” | ||
| + | smearing=”gaussian” | ||
| + | degauss=0.01 | ||
| + | starting_magnetization(1)=1.0 | ||
Latest revision as of 23:07, 18 March 2021
- Back to the previous page: Electronic properties of isolated molecules#Exercise 5
- To relax reactants and products you can use a template file you can find in ./LAB_2/test_molecules/scf_@mol@_relax.in
- A special care need to be paid for the O2 molecule as the ground state is a triplet:
To take this into account, add the following to the SYSTEM namelist of the pw input file:
nspin = 2 tot_charge = 0.0, tot_magnetization = 2.0,
or
nspin = 2 occupations=”smearing” smearing=”gaussian” degauss=0.01 starting_magnetization(1)=1.0