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Introduction In the world of computational material science and theoretical chemistry, few tools are as revered for specific niche applications as the ISM (Intermolecular Separation Method) software . Developed primarily for analyzing intermolecular interactions, electron densities, and molecular docking simulations, ISM has become a staple in many Indian research laboratories. The version ISM 6.2 represents a significant leap in parallel computing capabilities and user-friendly scripting. ism 6.2 software licences from cdac.zip
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| Software | Function | License Type | | :--- | :--- | :--- | | | Wavefunction analysis, AIM, ESP | Free for academics (no license file) | | Critic2 | Bader charge analysis, topological analysis | GPL open source | | Horton | Hirshfeld partitioning, density analysis | GPL v3 | | DGrid (by Kohout) | Electron density topology | Free with citation | | Software | Function | License Type |