source: ThirdParty/mpqc_open/src/bin/mpqc/validate/ckpt/ckpt_qnewtopt.in@ 2315f3

% molecule specification
molecule<Molecule>: (
  symmetry = C2V
  angstroms = yes
  { atoms geometry } = {
    O     [     0.00000000     0.00000000     0.36937294 ]
    H     [     0.78397590     0.00000000    -0.18468647 ]
    H     [    -0.78397590     0.00000000    -0.18468647 ]
  }
)
% basis set specification
basis<GaussianBasisSet>: (
  name = "STO-3G"
  molecule = $:molecule
)
mpqc: (
  checkpoint = no
  savestate = no
  restart = no
  % molecular coordinates for optimization
  coor<SymmMolecularCoor>: (
    molecule = $:molecule
    generator<IntCoorGen>: (
      molecule = $:molecule
    )
  )
  % method for computing the molecule's energy
  mole<CLHF>: (
    molecule = $:molecule
    basis = $:basis
    coor = $..:coor
    memory = 16000000
  )
  % optimizer object for the molecular geometry
  opt<QNewtonOpt>: (
    max_iterations = 3
    function = $..:mole
    update<BFGSUpdate>: ()
    convergence<MolEnergyConvergence>: (
      cartesian = yes
      energy = $..:..:mole
    )
  )
)