Author Topic: How to calculate molecular orbitals using ATK  (Read 3063 times)

0 Members and 1 Guest are viewing this topic.

Offline jerry

  • Heavy QuantumATK user
  • ***
  • Posts: 85
  • Reputation: 0
    • View Profile
How to calculate molecular orbitals using ATK
« on: July 17, 2011, 10:25 »
Hello,
     I want to calculate molecular orbitals for a certain molecule, but i do not konw how to determin the quantum number used in the eigenstate function? Can anybody give me an example? For instance, the quantum numbers for HOMO and LUMO. Thanks! :)

Offline zh

  • QuantumATK Support
  • Supreme QuantumATK Wizard
  • *****
  • Posts: 1141
  • Reputation: 24
    • View Profile
Re: How to calculate molecular orbitals using ATK
« Reply #1 on: July 18, 2011, 14:24 »
Once the number of electrons in the molecule, the index of HOMO and LUMO can determined according to the rule that one molecule level can be occupied by two electrons. One thing should be pointed out: the index of quantum number of eigenstates starts from zero, rather 1.

Offline jerry

  • Heavy QuantumATK user
  • ***
  • Posts: 85
  • Reputation: 0
    • View Profile
Re: How to calculate molecular orbitals using ATK
« Reply #2 on: July 19, 2011, 03:51 »
Thanks all the sameļ¼Œ i have managed to handle this by searching the tutorial!