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. Author manuscript; available in PMC: 2020 May 4.
Published in final edited form as: J Chem Theory Comput. 2019 Feb 4;15(2):1146–1158. doi: 10.1021/acs.jctc.8b00603

Table 4.

Performance of ab initio methods in anisotropic polarizability calculation for a set of nine compounds that have experimental molecular polarizability tensors.

Ab Initio Model Diagonal Terms Aii Gamma
Optimization Polarizability AUE RMSE APE RMS APE AUE RMSE APE RMS APE
B3LYP/6–311++G(d,p) B3LYP/adz 3.13 4.14 7.06 8.39 1.67 2.29 17.47 27.15
B3LYP/6–311++G(d,p) B3LYP/atz 2.78 3.81 5.52 6.87 1.58 2.26 7.2 8.59
MP2/6–311++G(d,p) MP2/adz 3.4 4.46 7.78 9.14 2.22 2.97 15.9 20.01
MP2/6–311++G(d,p) MP2/atz 3.12 4.2 6.43 7.81 1.98 2.72 8.07 9.47
B3LYP/adz B3LYP/adz 2.99 3.9 6.68 7.96 1.54 2.12 18.63 30.05
B3LYP/atz B3LYP/atz 2.85 3.95 5.67 7.08 1.66 2.36 7.71 8.89
MP2/adz MP2/adz 3.19 4.08 7.22 8.45 2.07 2.66 19.75 27.55
MP2/atz MP2/atz 3.19 4.37 6.61 8.17 2.08 2.88 8.86 10.33
B3LYP/atz B3LYP/adz 3.21 4.28 7.21 8.59 1.71 2.38 16.79 25.95
B3LYP/atz B3LYP/atz 2.85 3.95 5.67 7.08 1.65 2.36 7.71 8.89
B3LYP/atz MP2/adz 3.5 4.69 7.92 9.33 2.32 3.17 19.41 26.01
B3LYP/atz MP2/atz 3.21 4.43 6.56 8.01 2.09 2.92 10.96 13.05