pymatgen.io.qchem.outputs module

Parsers for Qchem output files.

class QCOutput(filename)

Bases: monty.json.MSONable

Class to parse QChem output files.

Parameters

filename (str) – Filename to parse

as_dict()

Returns

MSONAble dict.

static multiple_outputs_from_file(cls, filename, keep_sub_files=True)

Parses a QChem output file with multiple calculations 1.) Seperates the output into sub-files

e.g. qcout -> qcout.0, qcout.1, qcout.2 … qcout.N a.) Find delimeter for multiple calcualtions b.) Make seperate output sub-files

2.) Creates seperate QCCalcs for each one from the sub-files

check_for_structure_changes(mol1: pymatgen.core.structure.Molecule, mol2: pymatgen.core.structure.Molecule) → str

Compares connectivity of two molecules (using MoleculeGraph w/ OpenBabelNN). This function will work with two molecules with different atom orderings,

but for proper treatment, atoms should be listed in the same order.

Possible outputs include: - no_change: the bonding in the two molecules is identical - unconnected_fragments: the MoleculeGraph of mol1 is connected, but the

MoleculeGraph is mol2 is not connected

• fewer_bonds: the MoleculeGraph of mol1 has more bonds (edges) than the MoleculeGraph of mol2

• more_bonds: the MoleculeGraph of mol2 has more bonds (edges) than the MoleculeGraph of mol1

• bond_change: this case catches any other non-identical MoleculeGraphs

Parameters

• mol1 – Pymatgen Molecule object to be compared.

• mol2 – Pymatgen Molecule object to be compared.

Returns

One of [“unconnected_fragments”, “fewer_bonds”, “more_bonds”, “bond_change”, “no_change”]