DAMQT 2.1.0: A new version of the DAMQT package enabled with the topographical analysis of electron density and electrostatic potential in molecules.
DAMQT-2.1.0 is a new version of DAMQT package which includes topographical analysis of molecular electron density (MED) and molecular electrostatic potential (MESP), such as mapping of critical points (CPs), creating molecular graphs, and atomic basins. Mapping of CPs is assisted with algorithmic determination of Euler characteristic in order to provide a necessary condition for locating all possible CPs. Apart from the mapping of CPs and determination of molecular graphs, the construction of MESP-based atomic basin is a new and exclusive feature introduced in DAMQT-2.1.0. The GUI in DAMQT provides a user-friendly interface to run the code and visualize the final outputs. MPI libraries have been implemented for all the tasks to develop the parallel version of the software. Almost linear scaling of computational time is achieved with the increasing number of processors while performing various aspects of topography. A brief discussion of molecular graph and atomic basin is provided in the current article highlighting their chemical importance. Appropriate example sets have been presented for demonstrating the functions and efficiency of the code.
Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, Uttar Pradesh, India.
Anmol
A
Kumar
Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, Uttar Pradesh, India.
Sachin D
SD
Yeole
Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, Uttar Pradesh, India.
Shridhar R
SR
Gadre
Departamento De Química Física Aplicada, Facultad De Ciencias, Universidad Autónoma De Madrid, Madrid, E-28049, Spain.
Rafael
R
López
Departamento De Química Física Aplicada, Facultad De Ciencias, Universidad Autónoma De Madrid, Madrid, E-28049, Spain.
Jaime F
JF
Rico
Departamento De Química Física Aplicada, Facultad De Ciencias, Universidad Autónoma De Madrid, Madrid, E-28049, Spain.
Guillermo
G
Ramírez
Departamento De Química Física Aplicada, Facultad De Ciencias, Universidad Autónoma De Madrid, Madrid, E-28049, Spain.
Ignacio
I
Ema
Departamento De Química Física, Facultad De Ciencias, Universidad De Cádiz, Cádiz, E-11501, Spain.
David
D
Zorrilla
D004583:Electrons; D012984:Software; D055672:Static Electricity
DAMQT; MESP-based topograph; atomic basins; critical point (CP); deformed atoms in molecules; molecular electron density (MED); molecular electrostatic potential (MESP); molecular graph; topography