Table 4 Keys corresponding to “lobsterpy_data” in the LOBSTER lightweight data JSON file.

From: A Quantum-Chemical Bonding Database for Solid-State Materials

Root keys

Datatype

Description

formula

string

Chemical formula of the compound.

max_considered_bond_length

float

Maximum bond length that has been considered in the analysis.

limit_icohp

float array

Minimum and maximum ICOHP that has been considered in the analysis.

number_of_considered_ions

int

Number of ions that has been detected.

sites

string

Site index of the sites in the crystal structure for which bonds have been detected (nested dict that describes the bond and its co-ordination environment as determined based on the ICOHP values).

type_charges

string

Whether the Mulliken or the Lödin charges have been used for the bonding analysis.

cuttoff_icohp

float

ICOHP cutoff value set for bonding analysis.

summed_spins

bool

Indicates if spins are summed.

start

int

Sets the energy for evaluation of bonding and anti-bonding percentages based on COHP.

cohp_plot_data

dict

Relevant bond labels as keys and corresponding cohp objects to plot COHP curves from automatic analysis.

which_bonds

string

Indicates the mode of automatic bonding analysis run (“cation_anion” or “all”).

final_dict_bonds

dict

Includes relevant bond labels, ICOHP mean values and indicates if anti-bonding states below the Fermi level exist.

final_dict_ions

dict

Includes all different coordination environments and counts them.

run_time

float

Time needed in secs to run the automatic bonding analysis.