TDDFT in Chemistry and Biochemistry III - TDDFT.org
TDDFT in Chemistry and Biochemistry III - TDDFT.org
TDDFT in Chemistry and Biochemistry III - TDDFT.org
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Electronic Polarizabilities of MoleculesBasis set dependence of electronic polarizabilitiesExact1716HCNPBE0Basis set error20-50 %α, a.u.151413MP2HF12HF/SVP2-5 %Methodical error1110SVPTZVPPQZVPMolecular polarizabilities converge slowly with basis set size;Large diffuse basis (low-exponent) sets are often required;Reduced numerical stability with diffuse basis sets (ill-conditioned).Dmitrij Rappoport (Harvard U.) <strong>TDDFT</strong> <strong>in</strong> <strong>Chemistry</strong> <strong>III</strong> <strong>TDDFT</strong> W<strong>in</strong>ter School 2010 21 / 22