CCSD iterations does not converge

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  • Bert Forum:Admin, Forum:Mod, NWChemDeveloper, bureaucrat, sysop
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CCSD convergence level
So, your correlation energy is converged to at least 7 digits. I don't think you need that many for CBS fitting. Just as a reference, convergence to 0.0001 Hartree is less than 0.1 kcal/mol. Your convergence gives you a convergence error of at most 0.0001 kcal/mol. Hence, don't think you need that high a level of convergence.

Bert


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