Table 2.

Parameters in the rational functions defining H(s) for various GGAs.

	PBE	PBE-sol	B88	B97x
a2	0.015 994 1	0.004 733 3	0.009 686 15	0.002 735 5
a3	0.085 299 5	0.040 330 4	−0.024 249 8	0.043 297 0
a4	−0.160 368	−0.057 461 5	0.025 900 9	−0.066 937 9
a5	0.152 645	0.043 539 5	−0.013 660 6	0.069 906 0
a6	−0.097 126 3	−0.021 625 1	0.003 096 06	−0.047 463 5
a7	0.042 206 1	0.006 372 1	−7.325 83×10−5	0.015 309 2
b1	5.333 19	8.520 56	−2.503 56	15.827 9
b2	−12.478 0	−13.988 5	2.796 56	−26.814 5
b3	11.098 8	9.285 83	−1.794 01	17.812 7
b4	−5.110 13	−3.272 87	0.714 888	−5.982 46
b5	1.714 68	0.843 499	−0.165 924	1.254 08
b6	−0.610 380	−0.235 543	0.011 837 9	−0.270 783
b7	0.307 555	0.084 707 4	0.003 780 6	0.091 953 6
b8	−0.077 054 7	−0.017 156 1	−1.579 05×10−4	−0.014 096 0
b9	0.033 484 0	0.005 055 2	1.453 23×10−6	0.004 546 6