Skip to main content
. 2021 Apr 22;17(5):2868–2885. doi: 10.1021/acs.jctc.1c00081

Figure 4.

Figure 4

Butadiene molecule used in the analysis of the PT2 energy contribution with DET, CFG, and CSF MPBFs. The cc-pVDZ basis is taken for hydrogen atoms and the SV basis for the carbon atoms resulting in a FCI space of (22e,62o).