SUMMARY OF  PM7 CALCULATION, Site No: 23746

                                                       MOPAC2016 (Version: 21.053M)
                                                       Wed Feb 24 02:47:52 2021
                                                       No. of days remaining = 363

           Empirical Formula: Pb32 Se32  =    64 atoms

 MERS=(2,2,2)  CHARGE=0  OUTPUT THREADS=1 PM7 GRADIENTS  NOTXT            EF
 Lead selenide (PbSe) (ICSD 648528)
 h=-24.6 hr=guess


     GEOMETRY OPTIMISED USING EIGENVECTOR FOLLOWING (EF).
     SCF FIELD WAS ACHIEVED

          HEAT OF FORMATION       =      -1153.74582 KCAL/MOL =   -4827.27251 KJ/MOL
          H.o.F. per unit cell    =        -36.05456 KCAL, for 32 unit cells, unit cell = Pb1 Se1
          TOTAL ENERGY            =      -8092.23881 EV
          ELECTRONIC ENERGY       =  -23387012.41107 EV
          CORE-CORE REPULSION     =   23378920.17226 EV

          VOLUME OF UNIT CELL     =        219.099 CUBIC ANGSTROMS

          DENSITY                 =          8.675 GRAMS/CC
                              A   =          6.070 ANGSTROMS
                              B   =          6.008 ANGSTROMS
                              C   =          6.155 ANGSTROMS
                            ALPHA =         99.672 DEGREES
                            BETA  =         87.965 DEGREES
                            GAMMA =         97.984 DEGREES


          VOLUME OF CLUSTER       =       1752.79248 ANGSTROMS**3 = 1055.556 CM**3/MOLE

          GRADIENT NORM           =          3.71295 = 0.46412 PER ATOM
          NO. OF FILLED LEVELS    =        160
          IONIZATION POTENTIAL    =          7.377039 EV
          HOMO LUMO ENERGIES (EV) =         -7.377 -2.692
          MOLECULAR WEIGHT        =       9157.1200
           Pressure required to constrain translation vectors
           Tv(  65)  Pressure:  -0.01 GPa
           Tv(  66)  Pressure:   0.02 GPa
           Tv(  67)  Pressure:  -0.05 GPa
          SCF CALCULATIONS        =         36
          WALL-CLOCK TIME         =  3 MINUTES AND 59.031 SECONDS
          COMPUTATION TIME        =  3 MINUTES AND 57.716 SECONDS


          FINAL GEOMETRY OBTAINED
 MERS=(2,2,2)  CHARGE=0  OUTPUT THREADS=1 PM7 GRADIENTS  NOTXT            EF
 Lead selenide (PbSe) (ICSD 648528)
 h=-24.6 hr=guess
 Pb     0.20326282 +1  -0.03310036 +1  -0.36039049 +1
 Pb    -4.12173064 +1   0.64398573 +1   0.79536128 +1
 Pb    -1.54248856 +1  -4.78009261 +1   0.50968819 +1
 Pb    -2.10956676 +1  -1.55199928 +1  -3.15069647 +1
 Se    -3.35016691 +1  -2.53218116 +1  -1.16601089 +1
 Se     0.56989929 +1  -2.71983462 +1  -1.62032597 +1
 Se    -1.71489327 +1   1.91637375 +1  -1.55564484 +1
 Se    -1.46178127 +1  -1.08434688 +1   1.94000609 +1
 Pb     4.21407228 +1   2.72656121 +1  -3.99275629 +1
 Pb    -0.13157298 +1   3.37747940 +1  -2.85784155 +1
 Pb     2.45129172 +1  -2.07297195 +1  -3.15344152 +1
 Pb     1.88776448 +1   1.16862808 +1  -6.81694915 +1
 Se     0.65387888 +1   0.20265733 +1  -4.82408028 +1
 Se     4.56516773 +1   0.05250975 +1  -5.27064995 +1
 Se     2.29682084 +1   4.66687532 +1  -5.21169224 +1
 Se     2.54279231 +1   1.65388770 +1  -1.71052973 +1
 Pb     3.76442284 +1  -2.81729682 +1   3.26538920 +1
 Pb     0.08588964 +1  -2.72048228 +1   3.06790125 +1
 Pb     2.27916241 +1  -7.52001726 +1   4.97179214 +1
 Pb     2.05599563 +1  -4.07510020 +1  -0.09762724 +1
 Se     0.63302870 +1  -4.89373747 +1   1.86171098 +1
 Se     4.34030062 +1  -6.09900375 +1   2.18535690 +1
 Se     2.72180598 +1  -0.70604816 +1   1.43708017 +1
 Se     2.32281915 +1  -5.06045998 +1   5.47529673 +1
 Pb     7.76142550 +1  -0.05756982 +1  -0.37854933 +1
 Pb     4.08110847 +1  -0.00251219 +1  -0.60055259 +1
 Pb     6.28436344 +1  -4.78671170 +1   1.30221022 +1
 Pb     6.04505392 +1  -1.32195984 +1  -3.76128998 +1
 Se     4.63263043 +1  -2.17093209 +1  -1.81064997 +1
 Se     8.33853048 +1  -3.35323607 +1  -1.45897556 +1
 Se     6.72967849 +1   2.08899114 +1  -2.17932429 +1
 Se     6.31933421 +1  -2.32949043 +1   1.81811623 +1
 Pb    -0.36534578 +1   5.01804325 +1   2.94614006 +1
 Pb    -4.53029796 +1   5.78868984 +1   4.03691334 +1
 Pb    -0.81279406 +1   0.98411044 +1   3.20166630 +1
 Pb    -2.35675400 +1   3.77440774 +1   0.03211703 +1
 Se    -3.63505459 +1   2.82553113 +1   2.00736615 +1
 Se     0.51568051 +1   2.46243265 +1   1.66518468 +1
 Se    -2.14391640 +1   7.06228225 +1   1.68045080 +1
 Se    -1.98743971 +1   3.88261296 +1   5.22836945 +1
 Pb     3.64075551 +1   7.78225520 +1  -0.67782500 +1
 Pb    -0.53512411 +1   8.51234542 +1   0.40130723 +1
 Pb     3.21109983 +1   3.70692199 +1  -0.43349195 +1
 Pb     1.64670649 +1   6.50965438 +1  -3.61293916 +1
 Se     0.35497715 +1   5.56134745 +1  -1.64750229 +1
 Se     4.50437271 +1   5.22861176 +1  -1.95604040 +1
 Se     1.86884135 +1   9.80457487 +1  -2.00066674 +1
 Se     2.01507049 +1   6.58479739 +1   1.57337017 +1
 Pb     3.37779557 +1   2.29721978 +1   6.61618630 +1
 Pb    -0.49600952 +1   2.46372083 +1   6.68374068 +1
 Pb     1.97861301 +1  -2.22280274 +1   8.06908016 +1
 Pb     2.73125961 +1   1.55561155 +1   2.52949218 +1
 Se     0.47607874 +1   0.51571860 +1   5.35043681 +1
 Se     4.07037913 +1  -0.81177300 +1   5.33906729 +1
 Se     2.00890374 +1   4.35975196 +1   4.94917921 +1
 Se     1.88900626 +1   0.19168695 +1   8.76070203 +1
 Pb     7.37027909 +1   5.05766833 +1   2.96194483 +1
 Pb     3.47817679 +1   5.16220308 +1   3.05562910 +1
 Pb     5.97760481 +1   0.52825936 +1   4.40595528 +1
 Pb     6.73855666 +1   4.35807699 +1  -1.09984943 +1
 Se     4.47355832 +1   3.22647423 +1   1.72450604 +1
 Se     8.07071462 +1   1.93242461 +1   1.70452776 +1
 Se     6.03589773 +1   7.13127136 +1   1.27809571 +1
 Se     5.89613479 +1   2.93441060 +1   5.12210044 +1
 Tv     7.99948346 +1   5.49856659 +1  -7.29168299 +1
 Tv     7.83097419 +1  -6.10392070 +1   6.76710891 +1
 Tv    -0.62031119 +1  10.45130280 +1   6.47288088 +1