Wall clock time and date at job start Tue Mar 31 2020 21:33:05                  
 AMSOL-version 7.1
 by G. D. Hawkins, D. J. Giesen, G. C. Lynch, C. C. Chambers,
 I. Rossi, J. W. Storer, J. Li, J. D. Thompson, P. Winget,
 B. J. Lynch, D. Rinaldi, D. A. Liotard, C. J. Cramer, and D. G. Truhlar

 Copyright 2004 by Regents of the University of Minnesota.
 All rights reserved.

 Notice: recipients of this code are asked to comply
 with the user agreement in Section 1 of the documentation file.


 *******************************************************************************
 *  1SCF     - SCF CALCULATION WITHOUT GEOMETRY OPTIMIZATION 
 *           - USE EF ROUTINE FOR MINIMUM SEARCH (DEFAULT)
 *  GEO-OK   - OVERRIDE INTERATOMIC DISTANCE CHECK
 *  TLIMIT=  - A TIME OF      15. SECONDS REQUESTED
 *  CHARGE   - CHARGE ON SYSTEM= -1
 *  AM1      - THE AM1 HAMILTONIAN TO BE USED
 *  SM5.42R  - SM5.42R CALCULATIONS WILL BE PERFORMED
 *           - CHARGE MODEL 2 WILL BE USED (CM2A)
 *           - THE SOLVENT IS WATER               
 *******************************************************************************

   Atom   NO. Chemical  Bond length    Bond angle    Dihedral angle
  number  (k)  symbol   (angstroms)     (degrees)      (degrees)
   (I)                     NA:I         NB:NA:I        NC:NB:NA:I    NA  NB  NC
    1       1  C 
    2       2  C            1.52998 *                                 1
    3       3  N            1.46900 *   109.46721 *                   2   1
    4       4  C            1.46904 *   111.00064 *   297.55027 *     3   2   1
    5       5  C            1.52999 *   109.47334 *   288.27647 *     4   3   2
    6       6  C            1.46889 *   111.00304 *    61.51063 *     3   2   1
    7       7  C            1.50696 *   109.47442 *    66.04508 *     6   3   2
    8       8  O            1.21287 *   119.99824 *   359.97438 *     7   6   3
    9       9  N            1.34774 *   120.00559 *   180.02562 *     7   6   3
   10      10  C            1.46500 *   120.00282 *   179.97438 *     9   7   6
   11      11  H            1.08999 *   110.85675 *    34.30276 *    10   9   7
   12      12  C            1.54625 *   110.97008 *   270.50984 *    10   9   7
   13      13  C            1.51287 *   104.19434 *   266.64056 *    12  10   9
   14      14  O            1.21288 *   124.93872 *   163.77955 *    13  12  10
   15      15  N            1.34417 *   110.11812 *   343.75159 *    13  12  10
   16      16  C            1.46497 *   124.34965 *   179.57034 *    15  13  12
   17      17  C            1.53948 *   113.74249 *    38.71661 *    16  15  13
   18      18  N            1.47815 *    86.03759 *   222.08327 *    17  16  15
   19      19  C            1.36934 *   134.45949 *   204.64287 *    18  17  16
   20      20  H            1.08000 *   119.99757 *   179.85998 *    19  18  17
   21      21  C            1.38811 *   120.00106 *   359.86938 *    19  18  17
   22      22  N            1.31618 *   119.99502 *   359.97438 *    21  19  18
   23      23  Si           1.86795 *   120.00414 *   179.97438 *    21  19  18
   24      24  H            1.48503 *   109.46953 *    59.99215 *    23  21  19
   25      25  H            1.48495 *   109.47308 *   179.97438 *    23  21  19
   26      26  H            1.48500 *   109.47138 *   299.99635 *    23  21  19
   27      27  C            1.47584 *    91.05007 *    24.54564 *    18  17  16
   28      28  C            1.46761 *   111.29983 *   359.58824 *    15  13  12
   29      29  H            1.09006 *   109.47466 *    61.26883 *     1   2   3
   30      30  H            1.09001 *   109.47216 *   181.26705 *     1   2   3
   31      31  H            1.09000 *   109.47819 *   301.26710 *     1   2   3
   32      32  H            1.09000 *   109.47050 *   240.00095 *     2   1   3
   33      33  H            1.08994 *   109.46990 *   119.99743 *     2   1   3
   34      34  H            1.09002 *   109.46661 *    48.27494 *     4   3   2
   35      35  H            1.09002 *   109.47016 *   168.27323 *     4   3   2
   36      36  H            1.08999 *   109.47155 *    59.87544 *     5   4   3
   37      37  H            1.08998 *   109.47019 *   179.87697 *     5   4   3
   38      38  H            1.09000 *   109.46750 *   299.87294 *     5   4   3
   39      39  H            1.09005 *   109.47298 *   306.04116 *     6   3   2
   40      40  H            1.09003 *   109.47337 *   186.04721 *     6   3   2
   41      41  H            0.97005 *   119.99845 *   359.97438 *     9   7   6
   42      42  H            1.08996 *   110.48919 *    25.31617 *    12  10   9
   43      43  H            1.08996 *   110.48729 *   147.83660 *    12  10   9
   44      44  H            1.09003 *   112.94155 *   170.30449 *    16  15  13
   45      45  H            1.09002 *   113.76868 *   336.34403 *    17  16  15
   46      46  H            1.08997 *   113.77454 *   107.74360 *    17  16  15
   47      47  H            0.97008 *   119.99711 *   180.02562 *    22  21  19
   48      48  H            1.09000 *   113.76996 *   221.15576 *    27  18  17
   49      49  H            1.08998 *   113.77104 *    89.75377 *    27  18  17
   50      50  H            1.09001 *   110.24563 *   258.01809 *    28  15  13
   51      51  H            1.08997 *   110.24711 *   136.01781 *    28  15  13

 Note: An asterisk (*) indicates this parameter was or will be optimized.

          Cartesian coordinates (angstroms)
    NO.       Atom         X         Y         Z
     1         6        0.0000    0.0000    0.0000
     2         6        1.5300    0.0000    0.0000
     3         7        2.0195    1.3850    0.0000
     4         6        1.5969    2.0928   -1.2159
     5         6        2.3837    1.5606   -2.4154
     6         6        1.5783    2.0994    1.2052
     7         6        2.2308    1.4885    2.4185
     8         8        2.9886    0.5500    2.2916
     9         7        1.9717    1.9844    3.6446
    10         6        2.6057    1.3901    4.8241
    11         1        3.6116    1.0418    4.5900
    12         6        1.7421    0.2427    5.3975
    13         6        0.8923    0.9112    6.4557
    14         8       -0.1078    0.4329    6.9477
    15         7        1.4072    2.1120    6.7716
    16         6        0.8255    3.0276    7.7562
    17         6        0.2550    2.3205    8.9990
    18         7       -0.8816    3.2586    8.8845
    19         6       -1.8016    3.7626    9.7647
    20         1       -2.5539    4.4570    9.4208
    21         6       -1.7671    3.3813   11.0990
    22         7       -0.8503    2.5349   11.5179
    23        14       -3.0216    4.0694   12.2998
    24         1       -4.3886    3.6966   11.8553
    25         1       -2.7713    3.5093   13.6522
    26         1       -2.9025    5.5488   12.3465
    27         6       -0.6252    3.4357    7.4420
    28         6        2.6267    2.3880    6.0032
    29         1       -0.3634    0.4940   -0.9012
    30         1       -0.3634   -1.0274    0.0227
    31         1       -0.3635    0.5334    0.8784
    32         1        1.8933   -0.5138   -0.8900
    33         1        1.8933   -0.5138    0.8900
    34         1        0.5315    1.9302   -1.3792
    35         1        1.7881    3.1597   -1.1003
    36         1        2.1942    0.4933   -2.5296
    37         1        2.0686    2.0843   -3.3179
    38         1        3.4489    1.7253   -2.2531
    39         1        0.4949    2.0217    1.2975
    40         1        1.8621    3.1491    1.1298
    41         1        1.3654    2.7347    3.7462
    42         1        1.1128   -0.1872    4.6183
    43         1        2.3749   -0.5251    5.8426
    44         1        1.4772    3.8693    7.9907
    45         1       -0.0160    1.2789    8.8262
    46         1        0.8539    2.4618    9.8987
    47         1       -0.8264    2.2681   12.4503
    48         1       -0.7277    4.4658    7.1008
    49         1       -1.1553    2.7225    6.8108
    50         1        3.5083    2.2219    6.6223
    51         1        2.6140    3.4123    5.6307

          RHF calculation, no. of doubly occupied orbitals= 65


 REFERENCES FOR PARAMETERS IN GAS-PHASE HAMILTONIAN:

  H: (AM1): M.J.S. DEWAR ET AL, J. AM. CHEM. SOC. 107 3902-3909 (1985)          
  C: (AM1): M.J.S. DEWAR ET AL, J. AM. CHEM. SOC. 107 3902-3909 (1985)          
  N: (AM1): M.J.S. DEWAR ET AL, J. AM. CHEM. SOC. 107 3902-3909 (1985)          
  O: (AM1): M.J.S. DEWAR ET AL, J. AM. CHEM. SOC. 107 3902-3909 (1985)          
 Si: (AM1): M.J.S.DEWAR, C. JIE, ORGANOMETALLICS, 6, 1486-1490 (1987).          

 REFERENCE FOR CHARGE MODEL 2:

 J. Li, J. Xing, C. J. Cramer, and D. G. Truhlar, J. Chem. Phys. 111 (1999) 885.

 REFERENCE FOR THE PARAMETERIZATION OF THE SM5.42R SOLVATION MODEL:

 J. Li, T. Zhu, G. D. Hawkins, P. Winget, D. A. Liotard, C. J. Cramer, and 
   D. G. Truhlar, Theor. Chem. Acc. 103 (1999) 9-63

 P. Winget, J. D. Thompson C. J. Cramer,and D. G. Truhlar, J. Phys. Chem. B. submitted.



CHARGE=-1 AM1 1SCF TLIMIT=15 GEO-OK SM5.42R                                     
& SOLVNT=WATER                                                                  
 ZINC001108580293.mol2 51                                                        
                                                                                 

     1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED
     SCF FIELD WAS ACHIEVED                                   
Wall clock time and date at job start Tue Mar 31 2020 21:33:05                  

 Heat of formation + Delta-G solvation     =     -15.630220 kcal
 Electronic energy + Delta-G solvation     =  -30205.734173 eV
 Core-core repulsion                       =   26141.698367 eV
 Total energy + Delta-G solvation          =   -4064.035806 eV
 No. of doubly occupied orbitals           =      65
 Molecular weight
  (most abundant/longest-lived isotopes)   =     338.211     amu
 Computer time                             =       0.91     seconds

               Orbital eigenvalues (eV)

 -41.93320 -40.79358 -39.09275 -38.52816 -37.45735 -35.06849 -34.12034 -32.35361
 -32.00220 -30.92602 -29.18878 -28.50530 -26.98676 -26.60863 -25.23089 -24.77861
 -22.87362 -22.10213 -21.60140 -20.75449 -19.72315 -18.80200 -18.11530 -17.79474
 -17.68133 -17.19991 -16.96885 -16.76360 -16.33570 -15.87761 -15.74461 -15.55930
 -15.16629 -14.93350 -14.79976 -14.55818 -14.19427 -14.13895 -13.91433 -13.71671
 -13.41225 -13.39976 -13.18136 -13.04541 -12.87814 -12.85045 -12.73950 -12.70957
 -12.66441 -12.47118 -12.31839 -12.01503 -11.92689 -11.90880 -11.51829 -11.45201
 -11.04964 -10.70610 -10.61477 -10.06161  -9.55345  -9.17435  -8.94326  -7.92746
  -5.27368   1.42470   1.47547   1.53562   1.61550   1.69787   1.98238   2.08075
   2.48379   3.07821   3.25273   3.36973   3.47083   3.48897   3.80236   3.83710
   3.90815   4.02377   4.15084   4.25257   4.27098   4.31151   4.39361   4.40684
   4.50571   4.53461   4.60443   4.63918   4.70339   4.71718   4.78640   4.81737
   4.85856   4.90115   4.93653   5.02574   5.12860   5.18856   5.21790   5.23487
   5.25950   5.46431   5.47787   5.52376   5.86159   5.89850   6.02443   6.17566
   6.27974   6.59743   6.87656   7.26265   7.32211   7.57394   8.52860   9.24278

          Molecular weight =  338.21amu

           Principal moments of inertia in cm(-1)
          A =    0.023531   B =    0.002157   C =    0.002101

           Principal moments of inertia in units of 10**(-40)*gram-cm**2
          A = 1189.636354   B =12977.131765   C =13323.935816

              Net atomic charges, atomic populations, and dipole contributions
                                   calculated with CM2 

         Atom NO.   Type          Charge        No. of electrons
           1         C            -0.190           4.190
           2         C             0.044           3.956
           3         N            -0.533           5.533
           4         C             0.044           3.956
           5         C            -0.144           4.144
           6         C             0.030           3.970
           7         C             0.518           3.482
           8         O            -0.555           6.555
           9         N            -0.715           5.715
          10         C             0.150           3.850
          11         H             0.130           0.870
          12         C            -0.155           4.155
          13         C             0.502           3.498
          14         O            -0.577           6.577
          15         N            -0.605           5.605
          16         C             0.138           3.862
          17         C             0.146           3.854
          18         N            -0.636           5.636
          19         C            -0.237           4.237
          20         H             0.087           0.913
          21         C            -0.071           4.071
          22         N            -0.955           5.955
          23         Si            0.985           3.015
          24         H            -0.281           1.281
          25         H            -0.294           1.294
          26         H            -0.267           1.267
          27         C             0.116           3.884
          28         C             0.096           3.904
          29         H             0.067           0.933
          30         H             0.061           0.939
          31         H             0.051           0.949
          32         H             0.077           0.923
          33         H             0.071           0.929
          34         H             0.046           0.954
          35         H             0.086           0.914
          36         H             0.048           0.952
          37         H             0.072           0.928
          38         H             0.053           0.947
          39         H             0.079           0.921
          40         H             0.128           0.872
          41         H             0.413           0.587
          42         H             0.093           0.907
          43         H             0.124           0.876
          44         H             0.138           0.862
          45         H             0.020           0.980
          46         H             0.040           0.960
          47         H             0.248           0.752
          48         H             0.072           0.928
          49         H             0.022           0.978
          50         H             0.109           0.891
          51         H             0.115           0.885

For the charges calculated by CM2:

 Dipole moment (debyes)    X         Y         Z       Total
 from point charges    10.929     2.285   -27.597    29.770


Note:  The Mulliken population analysis charges presented below were not
used in the solvation calculation but are provided for completeness.
The chosen solvation model uses CM2 partial charges for calculating
solvation energies.

              Net atomic charges, atomic populations, and dipole contributions
                            using Mulliken population analysis

         Atom NO.   Type          Charge        No. of electrons
           1         C            -0.248           4.248
           2         C            -0.084           4.084
           3         N            -0.257           5.257
           4         C            -0.083           4.083
           5         C            -0.202           4.202
           6         C            -0.101           4.101
           7         C             0.305           3.695
           8         O            -0.433           6.433
           9         N            -0.369           5.369
          10         C             0.044           3.956
          11         H             0.148           0.852
          12         C            -0.196           4.196
          13         C             0.291           3.709
          14         O            -0.456           6.456
          15         N            -0.338           5.338
          16         C             0.034           3.966
          17         C             0.020           3.980
          18         N            -0.363           5.363
          19         C            -0.365           4.365
          20         H             0.104           0.896
          21         C            -0.264           4.264
          22         N            -0.603           5.603
          23         Si            0.812           3.188
          24         H            -0.208           1.208
          25         H            -0.220           1.220
          26         H            -0.193           1.193
          27         C            -0.011           4.011
          28         C            -0.026           4.026
          29         H             0.086           0.914
          30         H             0.080           0.920
          31         H             0.070           0.930
          32         H             0.095           0.905
          33         H             0.089           0.911
          34         H             0.064           0.936
          35         H             0.104           0.896
          36         H             0.067           0.933
          37         H             0.090           0.910
          38         H             0.072           0.928
          39         H             0.096           0.904
          40         H             0.146           0.854
          41         H             0.249           0.751
          42         H             0.111           0.889
          43         H             0.142           0.858
          44         H             0.155           0.845
          45         H             0.038           0.962
          46         H             0.058           0.942
          47         H             0.057           0.943
          48         H             0.090           0.910
          49         H             0.040           0.960
          50         H             0.127           0.873
          51         H             0.133           0.867

 Dipole moment (debyes)     X         Y         Z       Total
 from point charges     11.319     1.480   -27.105    29.411
 hybrid contribution    -2.232    -0.042     1.285     2.576
 sum                     9.087     1.439   -25.821    27.411

          Atomic orbital electron populations

   1.22403   0.97788   1.02720   1.01937   1.22239   0.92811   0.90143   1.03184
   1.61943   1.60086   1.02361   1.01330   1.22247   0.98130   0.98746   0.89194
   1.21735   1.00539   1.00997   0.96908   1.22115   0.99283   1.00305   0.88389
   1.20907   0.80997   0.82904   0.84672   1.90676   1.37188   1.29037   1.86377
   1.45978   1.48945   1.36831   1.05140   1.21745   0.97928   0.91580   0.84373
   0.85229   1.22767   0.99535   0.99877   0.97419   1.21534   0.84321   0.81894
   0.83189   1.90759   1.28101   1.68826   1.57942   1.48473   1.27311   1.17745
   1.40306   1.23350   0.93305   0.92593   0.87336   1.22595   0.87714   0.92955
   0.94755   1.46146   1.35027   1.50597   1.04489   1.19397   1.07659   1.20462
   0.88994   0.89574   1.25749   1.01426   1.00234   0.98986   1.70044   1.37314
   1.37787   1.15173   0.85066   0.78107   0.78268   0.77352   1.20754   1.22033
   1.19279   1.22988   0.93382   0.98900   0.85788   1.22693   0.87186   1.01229
   0.91452   0.91427   0.91967   0.93033   0.90509   0.91090   0.93551   0.89599
   0.93257   0.90951   0.92767   0.90353   0.85380   0.75066   0.88875   0.85817
   0.84490   0.96213   0.94167   0.94290   0.91043   0.95983   0.87319   0.86672

   Number of geometries                                      1
   Number of calculations of the screened coulomb radii      1
   The total number of SCF iterations                       15.
    Note: The number of geometries may not
    correspond to the number of cycles due to rejected geometry changes.

 In the following table subtotal= G_P + SS G_CDS.

  Atom   Chem.  CM2      G_P      Area      Sigma k    SS G_CDS Subtotal   M
 number symbol   chg.    (kcal) (Ang**2)  cal/(Ang**2)  (kcal)   (kcal)  value

   1       C    -0.19    -2.64     9.28      71.98       0.67    -1.97     16
   2       C     0.04     0.73     5.57      86.30       0.48     1.21     16
   3       N    -0.53    -7.91     4.41    -900.82      -3.97   -11.87     16
   4       C     0.04     0.46     5.55      86.30       0.48     0.94     16
   5       C    -0.14    -1.48     9.96      71.98       0.72    -0.76     16
   6       C     0.03     0.36     5.22      85.56       0.45     0.80     16
   7       C     0.52     8.68     7.54      87.66       0.66     9.34     16
   8       O    -0.56   -13.52    14.01      -3.05      -0.04   -13.56     16
   9       N    -0.72    -9.56     5.14    -437.53      -2.25   -11.81     16
  10       C     0.15     2.25     3.48      46.05       0.16     2.41     16
  11       H     0.13     1.78     7.63      -2.39      -0.02     1.76     16
  12       C    -0.15    -3.42     6.59      30.59       0.20    -3.22     16
  13       C     0.50    16.48     7.42      87.90       0.65    17.13     16
  14       O    -0.58   -26.69    14.61      -3.05      -0.04   -26.73     16
  15       N    -0.61   -16.56     3.15    -799.67      -2.52   -19.08     16
  16       C     0.14     4.90     4.81      46.75       0.22     5.13     16
  17       C     0.15     7.48     6.90      86.44       0.60     8.08     16
  18       N    -0.64   -34.47     3.70    -716.61      -2.65   -37.13     16
  19       C    -0.24   -13.87    10.70      84.03       0.90   -12.97     16
  20       H     0.09     4.75     7.83      -2.91      -0.02     4.73     16
  21       C    -0.07    -4.23     5.50      84.86       0.47    -3.76     16
  22       N    -0.95   -60.48    11.39      21.65       0.25   -60.24     16
  23       Si    0.98    47.18    29.55      68.60       2.03    49.21     16
  24       H    -0.28   -13.16     7.11      99.48       0.71   -12.45     16
  25       H    -0.29   -14.16     7.11      99.48       0.71   -13.46     16
  26       H    -0.27   -11.97     7.11      99.48       0.71   -11.26     16
  27       C     0.12     4.78     8.44      86.48       0.73     5.51     16
  28       C     0.10     1.41     6.97      86.83       0.60     2.02     16
  29       H     0.07     0.79     6.29      -2.38      -0.01     0.77     16
  30       H     0.06     0.87     8.14      -2.39      -0.02     0.86     16
  31       H     0.05     0.75     6.25      -2.39      -0.01     0.74     16
  32       H     0.08     1.22     6.60      -2.39      -0.02     1.20     16
  33       H     0.07     1.56     5.86      -2.39      -0.01     1.54     16
  34       H     0.05     0.44     5.89      -2.39      -0.01     0.43     16
  35       H     0.09     0.67     7.81      -2.39      -0.02     0.66     16
  36       H     0.05     0.56     6.71      -2.39      -0.02     0.54     16
  37       H     0.07     0.53     8.14      -2.39      -0.02     0.51     16
  38       H     0.05     0.66     8.14      -2.39      -0.02     0.64     16
  39       H     0.08     0.82     6.02      -2.38      -0.01     0.81     16
  40       H     0.13     0.90     7.86      -2.39      -0.02     0.89     16
  41       H     0.41     4.08     8.62     -92.70      -0.80     3.28     16
  42       H     0.09     2.22     8.09      -2.39      -0.02     2.20     16
  43       H     0.12     2.44     8.14      -2.39      -0.02     2.42     16
  44       H     0.14     4.09     8.14      -2.39      -0.02     4.07     16
  45       H     0.02     1.17     5.72      -2.39      -0.01     1.16     16
  46       H     0.04     2.26     7.17      -2.39      -0.02     2.24     16
  47       H     0.25    15.25     8.31     -92.70      -0.77    14.48     16
  48       H     0.07     2.54     8.14      -2.39      -0.02     2.52     16
  49       H     0.02     1.00     7.25      -2.39      -0.02     0.99     16
  50       H     0.11     1.26     8.14      -2.39      -0.02     1.24     16
  51       H     0.12     1.09     8.06      -2.39      -0.02     1.07     16

 Total:         -1.00   -85.71   396.16                 -1.07   -86.79

 By element:

 Atomic #  1  Polarization:   14.41  SS G_CDS:   0.15  Total:    14.56 kcal
 Atomic #  6  Polarization:   21.89  SS G_CDS:   7.99  Total:    29.88 kcal
 Atomic #  7  Polarization: -128.98  SS G_CDS: -11.15  Total:  -140.13 kcal
 Atomic #  8  Polarization:  -40.21  SS G_CDS:  -0.09  Total:   -40.30 kcal
 Atomic # 14  Polarization:   47.18  SS G_CDS:   2.03  Total:    49.21 kcal

 Total:                      -85.71             -1.07           -86.79 kcal

   The number of atoms in the molecule is     51
   The average number of expansion shells was   16.00
   The maximum number of expansion shells was     16
   The minimum number of expansion shells was     16


 **** NOTA BENE ****
 This is the net solvation energy for this exact molecular structure 
 (nuclear and electronic)!  The standard-state solvation energy should be 
 obtained as the difference between the heat of formation plus delta-G solvation
 for the relaxed solvated system and that for the relaxed gas-phase system.

                                                                                 
 ZINC001108580293.mol2 51                                                        

 1SCF run

    This is a breakdown of the solvation energy calculated
    without geometric relaxation in solution:

 (1)  E-EN(sol) electronic-nuclear energy of solute                 71.156 kcal
 (2)  G-P(sol) polarization free energy of solvation               -85.711 kcal
 (3)  G-ENP(sol) elect.-nuc.-pol. free energy of system            -14.555 kcal
 (4)  G-CDS(sol) cavity-dispersion-solvent structure free energy    -1.075 kcal
 (5)  G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4)             -86.786 kcal
 (6)  G-S(sol) free energy of system = (1) + (5)                   -15.630 kcal

     1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED

 Total computer time =       0.91 seconds