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Report SCF (HF/DFT) Convergence Issues
Questions

Dear Q-Chem Community, If you have any SCF (HF/DFT) jobs that are time-consuming or are facing convergence difficulties with Q-Chem, please send them to support@q-chem.com with the subject line “SCF Convergence Issue” t…

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What sort of SCF calculations are supported with external fields?
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How To
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How To
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Questions
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Failure in Frequency job
Questions
3 213 April 24, 2026
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Webinars
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Questions
1 196 April 22, 2026
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Questions
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Questions
5 304 April 18, 2026
Energy inconsistency with PySCF / adcc
Questions
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Questions
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Questions
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Questions
4 269 April 10, 2026