      -----------------------------------------------------------      
     |                   =====================                   |     
     |                           x T B                           |     
     |                   =====================                   |     
     |                         S. Grimme                         |     
     |          Mulliken Center for Theoretical Chemistry        |     
     |                    University of Bonn                     |     
      -----------------------------------------------------------      

   * xtb version 6.7.1 (ec4f388) compiled by 'softmgr@ac0082' on 2024-08-01

   xtb is free software: you can redistribute it and/or modify it under
   the terms of the GNU Lesser General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.
   
   xtb is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Lesser General Public License for more details.
   
   Cite this work as:
   * C. Bannwarth, E. Caldeweyher, S. Ehlert, A. Hansen, P. Pracht,
     J. Seibert, S. Spicher, S. Grimme, WIREs Comput. Mol. Sci., 2020, 11,
     e01493. DOI: 10.1002/wcms.1493
   
   for GFN2-xTB:
   * C. Bannwarth, S. Ehlert and S. Grimme., J. Chem. Theory Comput., 2019,
     15, 1652-1671. DOI: 10.1021/acs.jctc.8b01176
   for GFN1-xTB:
   * S. Grimme, C. Bannwarth, P. Shushkov, J. Chem. Theory Comput., 2017,
     13, 1989-2009. DOI: 10.1021/acs.jctc.7b00118
   for GFN0-xTB:
   * P. Pracht, E. Caldeweyher, S. Ehlert, S. Grimme, ChemRxiv, 2019, preprint.
     DOI: 10.26434/chemrxiv.8326202.v1
   for GFN-FF:
   * S. Spicher and S. Grimme, Angew. Chem. Int. Ed., 2020, 59, 15665-15673.
     DOI: 10.1002/anie.202004239
   
   for ALPB and GBSA implicit solvation:
   * S. Ehlert, M. Stahn, S. Spicher, S. Grimme, J. Chem. Theory Comput.,
     2021, 17, 4250-4261. DOI: 10.1021/acs.jctc.1c00471
   
   for ddCOSMO and CPCM-X implicit solvation:
   * M. Stahn, S. Ehlert, S. Grimme, J. Phys. Chem. A,
     2023, XX, XXXX-XXXX. DOI: 10.1021/acs.jpca.3c04382
   
   for DFT-D4:
   * E. Caldeweyher, C. Bannwarth and S. Grimme, J. Chem. Phys., 2017,
     147, 034112. DOI: 10.1063/1.4993215
   * E. Caldeweyher, S. Ehlert, A. Hansen, H. Neugebauer, S. Spicher,
     C. Bannwarth and S. Grimme, J. Chem. Phys., 2019, 150, 154122.
     DOI: 10.1063/1.5090222
   * E. Caldeweyher, J.-M. Mewes, S. Ehlert and S. Grimme, Phys. Chem. Chem. Phys.
     2020, 22, 8499-8512. DOI: 10.1039/D0CP00502A
   
   for sTDA-xTB:
   * S. Grimme and C. Bannwarth, J. Chem. Phys., 2016, 145, 054103.
     DOI: 10.1063/1.4959605
   
   in the mass-spec context:
   * V. Asgeirsson, C. Bauer and S. Grimme, Chem. Sci., 2017, 8, 4879.
     DOI: 10.1039/c7sc00601b
   * J. Koopman and S. Grimme, ACS Omega 2019, 4, 12, 15120-15133.
     DOI: 10.1021/acsomega.9b02011
   
   for metadynamics refer to:
   * S. Grimme, J. Chem. Theory Comput., 2019, 155, 2847-2862
     DOI: 10.1021/acs.jctc.9b00143
   
   for SPH calculations refer to:
   * S. Spicher and S. Grimme, J. Chem. Theory Comput., 2021, 17, 1701-1714
     DOI: 10.1021/acs.jctc.0c01306
   
   for ONIOM refer to:
   * C. Plett, A. Katbashev, S. Ehlert, S. Grimme, M. Bursch,
     Phys. Chem. Chem. Phys., 2023, 25, 17860-17868. DOI: 10.1039/D3CP02178E
   
   for DIPRO refer to:
   * J. Kohn, N. Gildemeister, S. Grimme, D. Fazzi, A. Hansen,
     J. Chem. Phys., 2023, just accepted.
   
   for PTB refer to:
   * S. Grimme, M. Mueller, A. Hansen, J. Chem. Phys., 2023, 158, 124111.
     DOI: 10.1063/5.0137838
   
   with help from (in alphabetical order)
   P. Atkinson, C. Bannwarth, F. Bohle, G. Brandenburg, E. Caldeweyher
   M. Checinski, S. Dohm, S. Ehlert, S. Ehrlich, I. Gerasimov, C. Hölzer
   A. Katbashev, J. Kohn, J. Koopman, C. Lavigne, S. Lehtola, F. März, M. Müller,
   F. Musil, H. Neugebauer, J. Pisarek, C. Plett, P. Pracht, F. Pultar,
   J. Seibert, P. Shushkov, S. Spicher, M. Stahn, M. Steiner, T. Strunk,
   J. Stückrath, T. Rose, and J. Unsleber
   
 * started run on 2026/05/28 at 09:42:58.064     
   ID    Z sym.   atoms
    1    8 O      1, 2

           -------------------------------------------------
          |                Calculation Setup                |
           -------------------------------------------------

          program call               : xtb o2.xyz --chrg 0 --gfn 0 --uhf 2
          hostname                   : ac0784
          coordinate file            : o2.xyz
          omp threads                :                     2


           -------------------------------------------------
          |                 G F N 0 - x T B                 |
           -------------------------------------------------

        Reference                      10.26434/chemrxiv.8326202.v1
      * Hamiltonian:
        H0-scaling (s, p, d)           2.000000    2.486800    2.270000
        zeta-weighting                 1.000000
      * Dispersion:
        s8                             2.850000
        a1                             0.800000
        a2                             4.600000
        s9                             0.000000
      * Repulsion:
        kExp                           1.500000
        rExp                           1.000000
      * Coulomb:
        alpha                          0.000000
        third order                    atomic
        anisotropic                    false
      * Polar bond correction:
        rad-shift                      0.053700
        strength                      -0.012900
        en-exp                         3.484700
        en-scale                       0.509700


          ...................................................
          :                      SETUP                      :
          :.................................................:
          :  # basis functions                   8          :
          :  # atomic orbitals                   8          :
          :  # shells                            4          :
          :  # electrons                        12          :
          :  electronic temp.          300.0000000     K    :
          :  accuracy                    1.0000000          :
          :  -> integral cutoff          0.2500000E+02      :
          :  -> integral neglect         0.1000000E-07      :
          ...................................................
  Checking positiv definite overlap ...  done.


         #    Occupation            Energy/Eh            Energy/eV
      -------------------------------------------------------------
         1        2.0000           -0.7123048             -19.3828
         2        2.0000           -0.6351495             -17.2833
         3        2.0000           -0.5027184             -13.6797
         4        2.0000           -0.4995449             -13.5933
         5        2.0000           -0.4995449             -13.5933
         6        1.0000           -0.3470755              -9.4444
         7        1.0000           -0.3470755              -9.4444 (HOMO)
         8                         -0.0021029              -0.0572 (LUMO)
      -------------------------------------------------------------
                  HL-Gap            0.3449726 Eh            9.3872 eV
             Fermi-level            0.0000000 Eh            0.0000 eV

 EHT (total)                   0 d,  0 h,  0 min,  0.162 sec
 EHT setup                      ...        0 min,  0.000 sec (  0.043%)
 Coordination number            ...        0 min,  0.013 sec (  8.035%)
 EEQ model density              ...        0 min,  0.016 sec (  9.929%)
 D4 Dispersion                  ...        0 min,  0.049 sec ( 30.210%)
 Integral evaluation            ...        0 min,  0.012 sec (  7.701%)
 Cholesky factorization         ...        0 min,  0.005 sec (  3.131%)
 Zeroth order Hamiltonian       ...        0 min,  0.058 sec ( 35.803%)
 Gradient calculation           ...        0 min,  0.008 sec (  5.101%)

         :::::::::::::::::::::::::::::::::::::::::::::::::::::
         ::                     SUMMARY                     ::
         :::::::::::::::::::::::::::::::::::::::::::::::::::::
         :: total energy              -6.388096447347 Eh    ::
         :: gradient norm              0.077224879268 Eh/a0 ::
         :: HOMO-LUMO gap              9.387182471092 eV    ::
         ::.................................................::
         :: H0 energy                 -6.392676071949 Eh    ::
         :: repulsion energy           0.004671828415 Eh    ::
         :: electrostat energy         0.000000000000 Eh    ::
         :: -> Gsolv                   0.000000000000 Eh    ::
         ::    -> Gsasa                0.000000000000 Eh    ::
         ::    -> Gshift               0.000000000000 Eh    ::
         :: dispersion energy         -0.000092203813 Eh    ::
         :: short-range corr.          0.000000000000 Eh    ::
         :: add. restraining           0.000000000000 Eh    ::
         :: total charge               0.000000000000 e     ::
         :::::::::::::::::::::::::::::::::::::::::::::::::::::

           -------------------------------------------------
          |                Property Printout                |
           -------------------------------------------------

    * Orbital Energies and Occupations

         #    Occupation            Energy/Eh            Energy/eV
      -------------------------------------------------------------
         1        2.0000           -0.7123048             -19.3828
         2        2.0000           -0.6351495             -17.2833
         3        2.0000           -0.5027184             -13.6797
         4        2.0000           -0.4995449             -13.5933
         5        2.0000           -0.4995449             -13.5933
         6        1.0000           -0.3470755              -9.4444
         7        1.0000           -0.3470755              -9.4444 (HOMO)
         8                         -0.0021029              -0.0572 (LUMO)
      -------------------------------------------------------------
                  HL-Gap            0.3449726 Eh            9.3872 eV
             Fermi-level            0.0000000 Eh            0.0000 eV

     #   Z          covCN         q      C6AA      α(0)
     1   8 O        0.978    -0.000    15.034     5.204
     2   8 O        0.978     0.000    15.034     5.204

 Mol. C6AA /au·bohr⁶  :         60.136862
 Mol. C8AA /au·bohr⁸  :       1213.594641
 Mol. α(0) /au        :         10.408737


Wiberg/Mayer (AO) data.
largest (>0.10) Wiberg bond orders for each atom

 ---------------------------------------------------------------------------
     #   Z sym  total        # sym  WBO       # sym  WBO       # sym  WBO
 ---------------------------------------------------------------------------
     1   8 O    2.000 --     2 O    2.000
     2   8 O    2.000 --     1 O    2.000
 ---------------------------------------------------------------------------

Topologies differ in total number of bonds
Writing topology from bond orders to xtbtopo.mol

 dipole moment from electron density (au)
     X       Y       Z   
  -0.0000   0.0000   0.0000  total (Debye):    0.000


           -------------------------------------------------
          | TOTAL ENERGY               -6.388096447347 Eh   |
          | GRADIENT NORM               0.077224879268 Eh/α |
          | HOMO-LUMO GAP               9.387182471092 eV   |
           -------------------------------------------------

------------------------------------------------------------------------
 * finished run on 2026/05/28 at 09:42:58.337     
------------------------------------------------------------------------
 total:
 * wall-time:     0 d,  0 h,  0 min,  0.273 sec
 *  cpu-time:     0 d,  0 h,  0 min,  0.236 sec
 * ratio c/w:     0.864 speedup
 SCF:
 * wall-time:     0 d,  0 h,  0 min,  0.170 sec
 *  cpu-time:     0 d,  0 h,  0 min,  0.166 sec
 * ratio c/w:     0.976 speedup

