The latter is done using an initial prescreening procedure that us looser in cutoffs. In the third step, we recompute the semicanonical LMP2 amplitudes for surviving pairs (non-dipole or semicanonical) through the refined prescreening procedure, and compute PNOs for the We present values for the most relevant parameters used in the DLPNO-CCSD algorithm, as reported in this section and throughout this work, in Table . The presented values are those corresponding to the TightPNO/NormalPNO convergence settings for our code. We will present all our results with TightPNO.