Wall clock time and date at job start Sat Apr 11 2020 06:28:03
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
* DEV - DEVELOPER OPTIONS ARE ALLOWED
* SM5.42R - SM5.42R CALCULATIONS WILL BE PERFORMED
* - CHARGE MODEL 2 WILL BE USED (CM2A)
* - THE SOLVENT IS USER-SPECIFIED
* DIELEC - THE SOLVENT DIELECTRIC CONSTANT IS 2.06
* IOFR - THE SOLVENT INDEX OF REFRACTION IS 1.4345
* ALPHA - THE SOLVENT ALPHA IS 0.00
* BETA - THE SOLVENT BETA IS 0.00
* GAMMA - THE SOLVENT MACROSCOPIC SURFACE TENSION IS
* 38.93 CAL MOL^-1 ANGSTROM^-2
* FACARB - THE FRACTION OF AROMATIC CARBONS IS 0.00
* FEHALO - THE FRACTION OF ELECTRONEGATIVE HALOGENS IS 0.00
*******************************************************************************
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 1.53000 * 1
3 3 H 1.08992 * 109.46878 * 2 1
4 4 C 1.53005 * 109.46731 * 119.99579 * 2 1 3
5 5 C 1.50707 * 109.46629 * 185.00029 * 4 2 1
6 6 O 1.21276 * 120.00148 * 0.02562 * 5 4 2
7 7 N 1.34772 * 119.99718 * 179.97438 * 5 4 2
8 8 C 1.46502 * 120.00143 * 179.97438 * 7 5 4
9 9 C 1.52996 * 109.47304 * 179.97438 * 8 7 5
10 10 H 1.09009 * 109.46964 * 65.00463 * 9 8 7
11 11 C 1.53005 * 109.47077 * 184.99828 * 9 8 7
12 12 O 1.42899 * 109.46713 * 55.00481 * 11 9 8
13 13 N 1.46496 * 109.47681 * 305.00152 * 9 8 7
14 14 C 1.36937 * 120.00205 * 154.99734 * 13 9 8
15 15 H 1.07995 * 119.99701 * 0.02562 * 14 13 9
16 16 C 1.38807 * 120.00064 * 180.02562 * 14 13 9
17 17 N 1.31626 * 120.00208 * 359.97438 * 16 14 13
18 18 Si 1.86799 * 120.00428 * 180.02562 * 16 14 13
19 19 H 1.48506 * 109.46815 * 59.99530 * 18 16 14
20 20 H 1.48497 * 109.47700 * 179.97438 * 18 16 14
21 21 H 1.48502 * 109.47042 * 299.99975 * 18 16 14
22 22 N 1.46499 * 109.47080 * 239.99265 * 2 1 3
23 23 C 1.34775 * 119.99299 * 85.00358 * 22 2 1
24 24 O 1.21276 * 120.00699 * 359.97438 * 23 22 2
25 25 C 1.50709 * 119.99599 * 179.97438 * 23 22 2
26 26 C 1.55238 * 110.58096 * 294.87565 * 25 23 22
27 27 C 1.54894 * 102.58338 * 203.33573 * 26 25 23
28 28 C 1.54266 * 104.31305 * 37.93170 * 27 26 25
29 29 C 1.53869 * 106.60031 * 336.32486 * 28 27 26
30 30 H 1.09006 * 109.47290 * 180.02562 * 1 2 3
31 31 H 1.09000 * 109.47261 * 300.00416 * 1 2 3
32 32 H 1.08993 * 109.47204 * 60.00734 * 1 2 3
33 33 H 1.08998 * 109.47203 * 304.99695 * 4 2 1
34 34 H 1.08996 * 109.47084 * 65.00294 * 4 2 1
35 35 H 0.97006 * 120.00120 * 0.02562 * 7 5 4
36 36 H 1.08993 * 109.47228 * 300.00321 * 8 7 5
37 37 H 1.09009 * 109.46828 * 59.99998 * 8 7 5
38 38 H 1.09002 * 109.46772 * 174.99828 * 11 9 8
39 39 H 1.08994 * 109.47198 * 295.00468 * 11 9 8
40 40 H 0.96697 * 113.99832 * 179.97438 * 12 11 9
41 41 H 0.97007 * 119.99922 * 335.00360 * 13 9 8
42 42 H 0.97000 * 120.00092 * 180.02562 * 17 16 14
43 43 H 0.96998 * 120.00025 * 264.99975 * 22 2 1
44 44 H 1.09006 * 110.43428 * 57.45967 * 25 23 22
45 45 H 1.08996 * 110.89448 * 85.05138 * 26 25 23
46 46 H 1.08993 * 110.76342 * 321.56803 * 26 25 23
47 47 H 1.09002 * 110.48891 * 279.18596 * 27 26 25
48 48 H 1.08998 * 110.48494 * 156.67683 * 27 26 25
49 49 H 1.09001 * 110.03084 * 95.60669 * 28 27 26
50 50 H 1.08996 * 110.03108 * 216.98559 * 28 27 26
51 51 H 1.08999 * 110.04012 * 119.28327 * 29 28 27
52 52 H 1.09006 * 110.02998 * 240.67078 * 29 28 27
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 1 1.8933 1.0276 0.0000
4 6 2.0399 -0.7212 1.2494
5 6 3.5419 -0.6148 1.3128
6 8 4.1449 -0.0204 0.4446
7 7 4.2148 -1.1795 2.3349
8 6 5.6749 -1.0766 2.3964
9 6 6.1847 -1.7965 3.6464
10 1 5.9741 -2.8628 3.5629
11 6 7.6942 -1.5837 3.7776
12 8 7.9802 -0.1836 3.7699
13 7 5.5108 -1.2569 4.8300
14 6 5.3885 -2.0240 5.9577
15 1 5.7891 -3.0267 5.9746
16 6 4.7495 -1.5128 7.0789
17 7 4.2616 -0.2905 7.0583
18 14 4.5831 -2.5590 8.6175
19 1 5.9333 -2.9302 9.1120
20 1 3.8674 -1.7879 9.6655
21 1 3.8171 -3.7904 8.2983
22 7 2.0183 -0.6908 -1.1961
23 6 2.1470 -0.0184 -2.3570
24 8 1.8582 1.1582 -2.4117
25 6 2.6499 -0.7288 -3.5874
26 6 4.1205 -1.1856 -3.3910
27 6 4.6330 -1.3088 -4.8475
28 6 3.9719 -0.1265 -5.5856
29 6 2.7111 0.2423 -4.7844
30 1 -0.3634 -1.0277 0.0005
31 1 -0.3634 0.5139 0.8899
32 1 -0.3633 0.5137 -0.8900
33 1 1.6053 -0.2616 2.1370
34 1 1.7516 -1.7714 1.2057
35 1 3.7324 -1.6546 3.0296
36 1 6.1092 -1.5368 1.5090
37 1 5.9636 -0.0263 2.4393
38 1 8.0428 -2.0206 4.7134
39 1 8.2027 -2.0630 2.9411
40 1 8.9207 0.0261 3.8502
41 1 5.1512 -0.3560 4.8148
42 1 3.8154 0.0669 7.8420
43 1 2.2490 -1.6319 -1.1524
44 1 2.0135 -1.5825 -3.8208
45 1 4.1637 -2.1493 -2.8835
46 1 4.6889 -0.4337 -2.8437
47 1 4.3169 -2.2561 -5.2843
48 1 5.7188 -1.2189 -4.8787
49 1 4.6551 0.7223 -5.6183
50 1 3.6983 -0.4243 -6.5978
51 1 2.7822 1.2700 -4.4282
52 1 1.8247 0.1239 -5.4078
RHF calculation, no. of doubly occupied orbitals= 66
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=GENORG IOFR=1.4345 ALPHA=0.00 BETA=0.00 GAMMA=38.93
& DIELEC=2.06 FACARB=0.00 FEHALO=0.00 DEV
ZINC001700808714.mol2 52
1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED
SCF FIELD WAS ACHIEVED
Wall clock time and date at job start Sat Apr 11 2020 06:28:03
Heat of formation + Delta-G solvation = -136.652682 kcal
Electronic energy + Delta-G solvation = -30708.589967 eV
Core-core repulsion = 26514.276093 eV
Total energy + Delta-G solvation = -4194.313875 eV
No. of doubly occupied orbitals = 66
Molecular weight
(most abundant/longest-lived isotopes) = 341.215 amu
Computer time = 0.95 seconds
Orbital eigenvalues (eV)
-40.29606 -39.29839 -37.47862 -37.06571 -35.61163 -34.82776 -33.46653 -31.92673
-31.32280 -29.20271 -28.82585 -28.62877 -27.75518 -25.01231 -23.66610 -22.89311
-21.14657 -20.59222 -20.15248 -19.95674 -19.56947 -17.70605 -17.43808 -16.74294
-16.57701 -16.39656 -15.86940 -15.67460 -15.02028 -14.95928 -14.68041 -14.24821
-14.03783 -13.75791 -13.60898 -13.50857 -13.42919 -13.11702 -13.02696 -12.82479
-12.43231 -12.23072 -12.07375 -11.86195 -11.79419 -11.45730 -11.40987 -11.32190
-11.28393 -11.02662 -10.92999 -10.91070 -10.87152 -10.60234 -10.59485 -10.16525
-9.82630 -9.65192 -9.54116 -9.37490 -9.02873 -8.98313 -8.56121 -7.07791
-5.85176 -3.15845 2.73590 2.97406 3.21516 3.35753 3.41042 3.42721
3.57151 4.31233 4.39788 4.48886 4.57959 4.67281 4.89695 4.93865
5.03063 5.13618 5.15637 5.28299 5.31357 5.36086 5.38922 5.41817
5.45134 5.47022 5.49647 5.54421 5.59665 5.65858 5.68187 5.73978
5.86785 5.88234 5.99659 6.00943 6.01966 6.02566 6.13560 6.15466
6.20095 6.35005 6.48284 6.55760 6.72451 6.92480 7.55276 7.57762
7.96419 8.18201 8.31763 8.32336 8.61631 9.43881 9.99216 10.35702
11.36180
Molecular weight = 341.21amu
Principal moments of inertia in cm(-1)
A = 0.014598 B = 0.002458 C = 0.002205
Principal moments of inertia in units of 10**(-40)*gram-cm**2
A = 1917.618804 B =11387.488387 C =12697.307587
Net atomic charges, atomic populations, and dipole contributions
calculated with CM2
Atom NO. Type Charge No. of electrons
1 C -0.163 4.163
2 C 0.159 3.841
3 H 0.096 0.904
4 C -0.153 4.153
5 C 0.505 3.495
6 O -0.543 6.543
7 N -0.714 5.714
8 C 0.120 3.880
9 C 0.166 3.834
10 H 0.064 0.936
11 C 0.059 3.941
12 O -0.560 6.560
13 N -0.713 5.713
14 C -0.249 4.249
15 H 0.069 0.931
16 C -0.007 4.007
17 N -0.926 5.926
18 Si 0.906 3.094
19 H -0.287 1.287
20 H -0.291 1.291
21 H -0.286 1.286
22 N -0.712 5.712
23 C 0.527 3.473
24 O -0.543 6.543
25 C -0.114 4.114
26 C -0.111 4.111
27 C -0.124 4.124
28 C -0.124 4.124
29 C -0.112 4.112
30 H 0.056 0.944
31 H 0.068 0.932
32 H 0.062 0.938
33 H 0.111 0.889
34 H 0.095 0.905
35 H 0.408 0.592
36 H 0.058 0.942
37 H 0.074 0.926
38 H 0.048 0.952
39 H 0.026 0.974
40 H 0.364 0.636
41 H 0.389 0.611
42 H 0.257 0.743
43 H 0.395 0.605
44 H 0.095 0.905
45 H 0.070 0.930
46 H 0.078 0.922
47 H 0.065 0.935
48 H 0.067 0.933
49 H 0.064 0.936
50 H 0.062 0.938
51 H 0.084 0.916
52 H 0.064 0.936
For the charges calculated by CM2:
Dipole moment (debyes) X Y Z Total
from point charges -2.887 -5.587 -20.486 21.429
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 -0.221 4.221
2 C 0.054 3.946
3 H 0.114 0.886
4 C -0.194 4.194
5 C 0.291 3.709
6 O -0.421 6.421
7 N -0.366 5.366
8 C -0.004 4.004
9 C 0.055 3.945
10 H 0.082 0.918
11 C -0.023 4.023
12 O -0.363 6.363
13 N -0.354 5.354
14 C -0.380 4.380
15 H 0.087 0.913
16 C -0.204 4.204
17 N -0.573 5.573
18 Si 0.737 3.263
19 H -0.213 1.213
20 H -0.217 1.217
21 H -0.212 1.212
22 N -0.362 5.362
23 C 0.313 3.687
24 O -0.420 6.420
25 C -0.135 4.135
26 C -0.149 4.149
27 C -0.161 4.161
28 C -0.162 4.162
29 C -0.150 4.150
30 H 0.075 0.925
31 H 0.087 0.913
32 H 0.081 0.919
33 H 0.129 0.871
34 H 0.113 0.887
35 H 0.244 0.756
36 H 0.076 0.924
37 H 0.092 0.908
38 H 0.066 0.934
39 H 0.044 0.956
40 H 0.208 0.792
41 H 0.223 0.777
42 H 0.067 0.933
43 H 0.229 0.771
44 H 0.113 0.887
45 H 0.089 0.911
46 H 0.097 0.903
47 H 0.084 0.916
48 H 0.086 0.914
49 H 0.083 0.917
50 H 0.081 0.919
51 H 0.103 0.897
52 H 0.082 0.918
Dipole moment (debyes) X Y Z Total
from point charges -3.348 -4.384 -21.034 21.745
hybrid contribution 0.440 -1.144 1.633 2.042
sum -2.908 -5.528 -19.402 20.382
Atomic orbital electron populations
1.22187 0.94982 1.02096 1.02831 1.20645 0.93165 0.98190 0.82637
0.88629 1.22052 0.93724 1.03293 1.00285 1.20472 0.89618 0.79002
0.81835 1.90706 1.70182 1.42226 1.38994 1.46023 1.08306 1.56110
1.26145 1.21496 0.79313 1.02213 0.97398 1.20582 0.89737 0.96691
0.87508 0.91799 1.23039 0.99014 0.81759 0.98440 1.86573 1.28703
1.24076 1.96960 1.42364 1.66765 1.16875 1.09429 1.19159 1.31346
0.96496 0.91033 0.91292 1.24750 1.01032 0.96488 0.98158 1.69669
1.42742 1.15019 1.29833 0.86300 0.77597 0.79227 0.83153 1.21345
1.21695 1.21247 1.45850 1.67275 1.13549 1.09529 1.20382 0.76717
0.87126 0.84446 1.90659 1.50249 1.16049 1.85065 1.22216 0.98316
0.99314 0.93686 1.22521 0.93430 1.01714 0.97234 1.22354 1.00310
0.98414 0.95055 1.22143 0.96975 0.98339 0.98759 1.22058 0.97730
1.00523 0.94652 0.92465 0.91323 0.91921 0.87131 0.88667 0.75550
0.92385 0.90757 0.93369 0.95609 0.79157 0.77668 0.93341 0.77120
0.88665 0.91098 0.90347 0.91597 0.91436 0.91702 0.91898 0.89748
0.91755
Number of geometries 1
Number of calculations of the screened coulomb radii 1
The total number of SCF iterations 14.
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 -0.16 -1.62 9.48 37.16 0.35 -1.27 16
2 C 0.16 1.91 2.13 -67.93 -0.14 1.77 16
3 H 0.10 1.49 7.39 -51.93 -0.38 1.10 16
4 C -0.15 -1.72 5.24 -27.88 -0.15 -1.87 16
5 C 0.51 7.71 7.69 -10.98 -0.08 7.62 16
6 O -0.54 -10.01 15.35 5.56 0.09 -9.93 16
7 N -0.71 -11.30 5.39 -60.29 -0.32 -11.62 16
8 C 0.12 2.07 5.12 -4.04 -0.02 2.05 16
9 C 0.17 3.05 2.84 -67.93 -0.19 2.86 16
10 H 0.06 1.12 8.08 -51.92 -0.42 0.70 16
11 C 0.06 1.00 6.86 37.16 0.25 1.26 16
12 O -0.56 -9.95 12.64 -35.23 -0.45 -10.39 16
13 N -0.71 -16.52 4.51 -53.43 -0.24 -16.76 16
14 C -0.25 -6.40 9.93 -15.06 -0.15 -6.55 16
15 H 0.07 1.70 7.83 -52.49 -0.41 1.29 16
16 C -0.01 -0.20 5.50 -17.43 -0.10 -0.29 16
17 N -0.93 -26.79 13.06 55.49 0.72 -26.06 16
18 Si 0.91 21.29 29.55 -169.99 -5.02 16.27 16
19 H -0.29 -6.70 7.11 56.52 0.40 -6.30 16
20 H -0.29 -6.98 7.11 56.52 0.40 -6.58 16
21 H -0.29 -6.54 7.11 56.52 0.40 -6.14 16
22 N -0.71 -8.08 4.21 -53.80 -0.23 -8.31 16
23 C 0.53 6.89 7.10 -10.98 -0.08 6.81 16
24 O -0.54 -9.21 15.09 5.56 0.08 -9.12 16
25 C -0.11 -1.12 3.25 -89.92 -0.29 -1.42 16
26 C -0.11 -1.06 6.34 -24.55 -0.16 -1.22 16
27 C -0.12 -0.98 6.82 -25.07 -0.17 -1.16 16
28 C -0.12 -1.04 6.80 -25.62 -0.17 -1.21 16
29 C -0.11 -1.11 6.18 -25.62 -0.16 -1.27 16
30 H 0.06 0.48 8.14 -51.93 -0.42 0.06 16
31 H 0.07 0.63 8.14 -51.93 -0.42 0.20 16
32 H 0.06 0.71 8.14 -51.93 -0.42 0.28 16
33 H 0.11 1.19 8.14 -51.93 -0.42 0.77 16
34 H 0.10 0.82 8.14 -51.93 -0.42 0.40 16
35 H 0.41 6.46 8.14 -40.82 -0.33 6.13 16
36 H 0.06 0.92 8.14 -51.93 -0.42 0.50 16
37 H 0.07 1.49 7.39 -51.92 -0.38 1.10 16
38 H 0.05 0.87 8.14 -51.93 -0.42 0.45 16
39 H 0.03 0.36 8.14 -51.93 -0.42 -0.06 16
40 H 0.36 4.66 9.12 45.56 0.42 5.08 16
41 H 0.39 10.09 7.80 -40.82 -0.32 9.77 16
42 H 0.26 7.27 8.31 -40.82 -0.34 6.93 16
43 H 0.40 3.60 8.60 -40.82 -0.35 3.25 16
44 H 0.10 0.74 8.14 -51.93 -0.42 0.31 16
45 H 0.07 0.59 8.14 -51.93 -0.42 0.17 16
46 H 0.08 0.96 8.06 -51.93 -0.42 0.54 16
47 H 0.07 0.44 8.14 -51.93 -0.42 0.02 16
48 H 0.07 0.52 8.14 -51.93 -0.42 0.10 16
49 H 0.06 0.56 8.14 -51.93 -0.42 0.13 16
50 H 0.06 0.44 8.14 -51.93 -0.42 0.02 16
51 H 0.08 1.05 6.85 -51.93 -0.36 0.70 16
52 H 0.06 0.57 8.14 -51.93 -0.42 0.15 16
LS Contribution 422.11 15.07 6.36 6.36
Total: -1.00 -33.70 422.11 -8.70 -42.40
By element:
Atomic # 1 Polarization: 29.50 SS G_CDS: -8.44 Total: 21.07 kcal
Atomic # 6 Polarization: 7.36 SS G_CDS: -1.26 Total: 6.10 kcal
Atomic # 7 Polarization: -62.69 SS G_CDS: -0.07 Total: -62.76 kcal
Atomic # 8 Polarization: -29.16 SS G_CDS: -0.28 Total: -29.44 kcal
Atomic # 14 Polarization: 21.29 SS G_CDS: -5.02 Total: 16.27 kcal
Total LS contribution 6.36 Total: 6.36 kcal
Total: -33.70 -8.70 -42.40 kcal
The number of atoms in the molecule is 52
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.
ZINC001700808714.mol2 52
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 -94.254 kcal
(2) G-P(sol) polarization free energy of solvation -33.701 kcal
(3) G-ENP(sol) elect.-nuc.-pol. free energy of system -127.954 kcal
(4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.699 kcal
(5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -42.399 kcal
(6) G-S(sol) free energy of system = (1) + (5) -136.653 kcal
1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED
Total computer time = 0.95 seconds