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Table 1.

Summary of active space construction strategies used in this work.

Strategy OS Inactive core NCSFs
Even Odd
VV AS4 [Kr] 2078 2256
VV+CV AS4 [Ar]3d10 349 894 464 978
VV+CV+CC AS4 [Ar]3d10 7 252 853 10 258 516
VV+CV+CC+extended MR AS4 [Ar]3d10 10 870 442 12 661 982
VV+CV+CC+extended MR AS5 [Ar]3d10 14 255 953 16 514 844

Notes. NCSFs is the number of CSFs.

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