Autobench V1.0: Benchmarking Automation for Electronic Structure Calculations

Author(s)

Cormanich, Rodrigo A. ; da Silva, Gabriel D.

• Document type: Journal article
• Source: JOURNAL OF CHEMICAL INFORMATION AND MODELING; v. 64, n. 8, p. 10-pg., 2024-03-27.

Abstract

This work reports on new software for automatic conformer energy benchmarking calculations for flexible molecules. The software workflow consists of four parts: conformational search, preoptimization, optimization, and frequency calculations at a higher level and last calculations using several theoretical levels. The software was written to be user-friendly and versatile to be used by nonexperts in computational chemistry. Any theoretical levels available in either Gaussian 16 or ORCA 5 may be applied in the benchmarking study. The workflow will automatically run conformational search calculations and deal with conformers that converge to the same minimum and those that show a negative frequency. At the end of the workflow, the user will have the mean absolute deviations and the most accurate method/DFT functional and basis set in comparison to the benchmark to be applied for the molecular system of interest. Case examples are given at the end of the paper that may help users to get insight into the software's main features. (AU)

• FAPESP's process: 20/13525-8 - Study of helical vs zigzag geometry of perfluorinated compounds capable of forming intramolecular hydrogen bonds
• Grantee: Gabriel Douglas da Silva
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• FAPESP's process: 18/03910-1 - Physicochemical studies of fluorinated organic compounds: experimental and theoretical approaches
• Grantee: Rodrigo Antonio Cormanich
• Support Opportunities: Research Grants - Young Investigators Grants