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DFT with a custom starting `Da` & `Db`
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1
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43
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January 9, 2025
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Calculating the first order electrostatic energy in the monomer basis using Psi4Numpy
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5
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864
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December 28, 2024
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Could Someone Give me Advice on Developing a New PsiCode Plugin?
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0
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33
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December 26, 2024
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Unable to download installer for Psi4conda: Permission?
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3
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111
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December 24, 2024
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Using Field Programmable Gate Array Acceleration?
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2
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50
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December 16, 2024
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Simple CCSD calculation fails for a large molecule
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3
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82
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December 15, 2024
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Optimizing a P4 molecule causes error "local variable 'errors'..."
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1
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60
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December 12, 2024
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Temperature options
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3
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41
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February 7, 2025
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Unrecognized point group bits with a custom functional (CASE21)
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0
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29
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December 7, 2024
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Confusion about PsiAPI and polarizability calculations
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0
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61
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December 5, 2024
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Number of Basis Functions is Mismatched/Inconsistent!
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3
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44
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November 19, 2024
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Why does nuclear_repulsion_energy depend on the external electric field?
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2
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47
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November 19, 2024
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Does Psi4 Support Complex SCF?
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1
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56
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November 18, 2024
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My custom code isn't passing tests, help!
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5
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74
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November 18, 2024
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Dipole moment finite-field computation
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2
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54
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November 15, 2024
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Problem with dftd4 installation
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3
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154
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November 9, 2024
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How to compute the SCF unrelaxed energy?
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3
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51
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November 9, 2024
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Spherical averaging of occupied orbitals on atoms
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5
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953
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January 20, 2021
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MP2 polarizability using finite field
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5
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1775
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January 3, 2025
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What's wrong with my attempt to test Brillouin's Theorem?
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3
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55
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October 31, 2024
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What's wrong with my attempt to reproduce the dipole moment?
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2
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67
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October 31, 2024
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Why am I getting strange results for transition metals in Psi4 1.5?
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17
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79
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October 29, 2024
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Where is psi4_dev located?
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2
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40
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October 28, 2024
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Multi-threading two-electron integrals
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0
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46
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October 27, 2024
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Installtion of PSI4 Psi4conda-1.9.1-py38-Linux-x86_64.sh
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0
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53
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October 21, 2024
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First order hyperpolarizability with DFT
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0
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49
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October 19, 2024
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RuntimeError when setting custom Ca and Cb matrices in Wavefunction
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1
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38
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October 17, 2024
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Mixed RHF and ROHF
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3
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54
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October 15, 2024
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Psimrcc energy calculation not right for symmetry c1
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3
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44
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October 11, 2024
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Offline instalation
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0
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35
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October 9, 2024
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