(c) If Multiwfn is utilized in your work, or your own code incorporated any part of Multiwfn code, at least the original paper of Multiwfn MUST BE cited in your work or code: Tian Lu, Feiwu Chen, J. Selling modified version of Multiwfn may also be granted, however, obtaining prior consent from the original author of Multiwfn (Tian Lu) is needed.
(b) Multiwfn can be distributed as a free component of commercial code. (a) Currently Multiwfn is free of charge and open-source for both academic and commerical usages, anyone is allowed to freely distribute the original or their modified Multiwfn codes to others. LICENSE INFORMATION : To download and use Multiwfn, you are required to read and agree the following terms: Its precompiled file and source codes are available from. The program is free of charge and open‐source. Five practical examples involving a wide variety of systems and analysis methods are given to illustrate the usefulness of Multiwfn. Its efficiency is demonstrated to be significantly higher than related programs with the same functions. The code of Multiwfn is substantially optimized and parallelized. The program interface is very user‐friendly and suitable for both research and teaching purpose. The built‐in graph module enables the results of wavefunction analysis to be plotted directly or exported to high‐quality graphic file. Some other useful utilities involved in quantum chemistry studies are also provided. (6) Topology analysis for electron density. Its main functions are: (1) Calculating and visualizing real space function, such as electrostatic potential and electron localization function at point, in a line, in a plane or in a spatial scope. Multiwfn is a multifunctional program for wavefunction analysis.