Wall clock time and date at job start Sat Mar 6 2021 13:53:57
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= 0
* 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 O
2 2 C 1.42905 * 1
3 3 Si 1.86295 * 109.47220 * 2 1
4 4 C 1.50697 * 109.47023 * 120.00146 * 2 1 3
5 5 C 1.38262 * 119.94648 * 64.99782 * 4 2 1
6 6 C 1.38145 * 120.06056 * 180.02562 * 5 4 2
7 7 C 1.38733 * 119.93760 * 359.97438 * 6 5 4
8 8 O 1.35899 * 120.05110 * 180.02562 * 7 6 5
9 9 C 1.42904 * 116.99762 * 180.02562 * 8 7 6
10 10 C 1.50711 * 109.46830 * 180.02562 * 9 8 7
11 11 O 1.21270 * 120.00254 * 359.97438 * 10 9 8
12 12 N 1.34780 * 119.99583 * 180.02562 * 10 9 8
13 13 C 1.46497 * 119.99653 * 179.97438 * 12 10 9
14 14 H 1.09002 * 112.84935 * 334.66222 * 13 12 10
15 15 C 1.53786 * 113.61643 * 105.85894 * 13 12 10
16 16 C 1.53962 * 87.01719 * 89.22773 * 15 13 12
17 17 H 1.08997 * 113.53543 * 270.80998 * 16 15 13
18 18 C 1.50701 * 113.74004 * 139.94532 * 16 15 13
19 19 C 1.38241 * 119.97065 * 322.40191 * 18 16 15
20 20 C 1.38293 * 120.10882 * 179.97438 * 19 18 16
21 21 C 1.38125 * 120.05363 * 359.97438 * 20 19 18
22 22 C 1.38751 * 119.94384 * 0.03026 * 21 20 19
23 23 O 1.35905 * 120.05363 * 180.02562 * 22 21 20
24 24 C 1.42904 * 116.99982 * 359.97438 * 23 22 21
25 25 F 1.39892 * 109.47114 * 60.00015 * 24 23 22
26 26 F 1.39897 * 109.47321 * 180.02562 * 24 23 22
27 27 F 1.39907 * 109.46892 * 300.00415 * 24 23 22
28 28 C 1.38165 * 119.97017 * 142.12537 * 18 16 15
29 29 C 1.53781 * 113.61305 * 203.46742 * 13 12 10
30 30 C 1.38733 * 119.89282 * 0.28147 * 7 6 5
31 31 C 1.38145 * 119.94052 * 359.42279 * 30 7 6
32 32 H 0.96700 * 114.00132 * 300.00291 * 1 2 3
33 33 H 1.09003 * 109.46570 * 240.00014 * 2 1 3
34 34 H 1.48509 * 110.00203 * 300.00083 * 3 2 1
35 35 H 1.48503 * 110.00285 * 61.31757 * 3 2 1
36 36 H 1.08007 * 119.96865 * 359.97438 * 5 4 2
37 37 H 1.07999 * 120.02992 * 179.97438 * 6 5 4
38 38 H 1.08992 * 109.47481 * 60.00304 * 9 8 7
39 39 H 1.08997 * 109.47008 * 299.99853 * 9 8 7
40 40 H 0.96995 * 120.00200 * 359.97438 * 12 10 9
41 41 H 1.08993 * 113.61491 * 203.74894 * 15 13 12
42 42 H 1.09000 * 113.61138 * 334.65232 * 15 13 12
43 43 H 1.07996 * 119.94503 * 359.97438 * 19 18 16
44 44 H 1.07998 * 119.97268 * 180.02562 * 20 19 18
45 45 H 1.08003 * 120.02173 * 180.02562 * 21 20 19
46 46 H 1.08005 * 120.02874 * 0.02562 * 28 18 16
47 47 H 1.09001 * 113.61695 * 25.34675 * 29 13 12
48 48 H 1.08997 * 113.61223 * 156.25258 * 29 13 12
49 49 H 1.08000 * 120.02821 * 179.71650 * 30 7 6
50 50 H 1.08002 * 119.97251 * 180.27601 * 31 30 7
Note: An asterisk (*) indicates this parameter was or will be optimized.
Cartesian coordinates (angstroms)
NO. Atom X Y Z
1 8 0.0000 0.0000 0.0000
2 6 1.4290 0.0000 0.0000
3 14 2.0501 1.7564 0.0000
4 6 1.9313 -0.7104 1.2304
5 6 1.6840 -2.0605 1.3972
6 6 2.1429 -2.7140 2.5245
7 6 2.8530 -2.0144 3.4894
8 8 3.3060 -2.6551 4.5990
9 6 4.0291 -1.8717 5.5506
10 6 4.4490 -2.7452 6.7048
11 8 4.1574 -3.9223 6.7120
12 7 5.1479 -2.2178 7.7295
13 6 5.5556 -3.0667 8.8517
14 1 4.9083 -3.9337 8.9836
15 6 7.0543 -3.4113 8.8508
16 6 7.2674 -2.1294 9.6764
17 1 7.4335 -1.2414 9.0664
18 6 8.2831 -2.2800 10.7795
19 6 8.3571 -3.4614 11.4935
20 6 9.2884 -3.6029 12.5060
21 6 10.1475 -2.5638 12.8058
22 6 10.0752 -1.3770 12.0906
23 8 10.9198 -0.3533 12.3834
24 6 11.8571 -0.5677 13.4405
25 9 12.6792 -1.6538 13.1217
26 9 12.6418 0.5784 13.6076
27 9 11.1676 -0.8375 14.6276
28 6 9.1434 -1.2393 11.0724
29 6 5.8135 -2.2870 10.1519
30 6 3.0953 -0.6587 3.3223
31 6 2.6395 -0.0112 2.1903
32 1 -0.3933 0.4417 0.7650
33 1 1.7923 -0.5139 -0.8900
34 1 1.5615 2.4679 -1.2085
35 1 1.5880 2.4586 1.2242
36 1 1.1308 -2.6045 0.6459
37 1 1.9491 -3.7684 2.6545
38 1 3.3927 -1.0663 5.9169
39 1 4.9138 -1.4482 5.0753
40 1 5.3808 -1.2762 7.7240
41 1 7.2925 -4.3255 9.3944
42 1 7.5100 -3.3752 7.8612
43 1 7.6864 -4.2751 11.2603
44 1 9.3445 -4.5270 13.0622
45 1 10.8749 -2.6750 13.5964
46 1 9.0879 -0.3180 10.5115
47 1 5.2690 -1.3447 10.2114
48 1 5.7119 -2.8933 11.0520
49 1 3.6439 -0.1110 4.0743
50 1 2.8317 1.0433 2.0576
There are 77 doubly filled levels
RHF calculation, no. of doubly occupied orbitals= 77
No. of singly occupied orbitals= 1
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)
F: (AM1): M.J.S. DEWAR AND E. G. ZOEBISCH, THEOCHEM, 180, 1 (1988).
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=0 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
s_22_10860230_2989410.mol2 50
1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED
SCF FIELD WAS ACHIEVED
Wall clock time and date at job start Sat Mar 6 2021 13:53:57
Heat of formation + Delta-G solvation = -205.613397 kcal
Electronic energy + Delta-G solvation = -38600.573853 eV
Core-core repulsion = 32725.296865 eV
Total energy + Delta-G solvation = -5875.276988 eV
No. of doubly occupied orbitals = 77
and no. of open levels = 1
Molecular weight
(most abundant/longest-lived isotopes) = 424.138 amu
Computer time = 1.24 seconds
Orbital eigenvalues (eV)
-51.48301 -49.19530 -49.08239 -41.96879 -41.49747 -40.95688 -39.92894 -39.00217
-38.19032 -37.21755 -34.72845 -32.55092 -32.28268 -31.80320 -31.37273 -29.65242
-27.26859 -26.93480 -26.43045 -26.02689 -24.17332 -23.98045 -23.13444 -22.51381
-21.89449 -21.09672 -20.20282 -20.10154 -19.84030 -19.54098 -18.55124 -18.31511
-17.93783 -17.53309 -17.27109 -17.21039 -16.88999 -16.57089 -16.32301 -16.31606
-16.10947 -16.01019 -15.84728 -15.62793 -15.59499 -15.52312 -15.48096 -15.30343
-15.24055 -15.19183 -14.89870 -14.71679 -14.57235 -14.33578 -14.28439 -14.06594
-13.78713 -13.72742 -13.56375 -13.45694 -13.01960 -12.94259 -12.87703 -12.30309
-12.16902 -12.15024 -12.01837 -11.90736 -11.62932 -11.50912 -10.99106 -10.59626
-10.28774 -10.07454 -10.04120 -9.66555 -9.26796 -4.99883 0.00459 0.12134
0.25273 0.26699 0.39920 1.26356 1.33024 1.38241 1.54767 1.77264
1.93594 2.38949 2.44989 2.61766 2.71249 2.93381 3.19911 3.34212
3.37868 3.40104 3.47703 3.51084 3.63426 3.67240 3.69146 3.75935
3.82206 3.82991 3.83510 3.88259 4.03085 4.08830 4.23142 4.27815
4.39819 4.43403 4.50221 4.52378 4.61413 4.64089 4.68072 4.77243
4.80909 4.89215 4.91167 4.92005 5.11286 5.14259 5.21436 5.24108
5.30742 5.43666 5.47260 5.64274 5.77734 6.14867 6.29486 6.39740
6.99471
Net atomic charges, atomic populations, and dipole contributions
calculated with CM2
Atom NO. Type Charge No. of electrons
1 O -0.530 6.530
2 C -0.070 4.070
3 Si 0.684 3.316
4 C -0.155 4.155
5 C -0.050 4.050
6 C -0.145 4.145
7 C 0.134 3.866
8 O -0.288 6.288
9 C 0.040 3.960
10 C 0.519 3.481
11 O -0.508 6.508
12 N -0.711 5.711
13 C 0.121 3.879
14 H 0.108 0.892
15 C -0.143 4.143
16 C -0.075 4.075
17 H 0.102 0.898
18 C -0.035 4.035
19 C -0.133 4.133
20 C -0.073 4.073
21 C -0.194 4.194
22 C 0.107 3.893
23 O -0.311 6.311
24 C 0.605 3.395
25 F -0.164 7.164
26 F -0.130 7.130
27 F -0.164 7.164
28 C -0.121 4.121
29 C -0.133 4.133
30 C -0.206 4.206
31 C -0.077 4.077
32 H 0.376 0.624
33 H 0.118 0.882
34 H -0.257 1.257
35 H -0.261 1.261
36 H 0.134 0.866
37 H 0.136 0.864
38 H 0.095 0.905
39 H 0.097 0.903
40 H 0.403 0.597
41 H 0.099 0.901
42 H 0.078 0.922
43 H 0.133 0.867
44 H 0.135 0.865
45 H 0.134 0.866
46 H 0.138 0.862
47 H 0.080 0.920
48 H 0.102 0.898
49 H 0.131 0.869
50 H 0.130 0.870
For the charges calculated by CM2:
Dipole moment (debyes) X Y Z Total
from point charges 2.046 2.898 1.276 3.770
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 O -0.336 6.336
2 C -0.180 4.180
3 Si 0.586 3.414
4 C -0.155 4.155
5 C -0.068 4.068
6 C -0.164 4.164
7 C 0.089 3.911
8 O -0.200 6.200
9 C -0.039 4.039
10 C 0.304 3.696
11 O -0.382 6.382
12 N -0.365 5.365
13 C 0.016 3.984
14 H 0.126 0.874
15 C -0.181 4.181
16 C -0.093 4.093
17 H 0.120 0.880
18 C -0.036 4.036
19 C -0.151 4.151
20 C -0.091 4.091
21 C -0.212 4.212
22 C 0.065 3.935
23 O -0.231 6.231
24 C 0.514 3.486
25 F -0.146 7.146
26 F -0.111 7.111
27 F -0.146 7.146
28 C -0.139 4.139
29 C -0.171 4.171
30 C -0.225 4.225
31 C -0.095 4.095
32 H 0.223 0.777
33 H 0.135 0.865
34 H -0.182 1.182
35 H -0.187 1.187
36 H 0.152 0.848
37 H 0.154 0.846
38 H 0.113 0.887
39 H 0.114 0.886
40 H 0.238 0.762
41 H 0.117 0.883
42 H 0.096 0.904
43 H 0.151 0.849
44 H 0.153 0.847
45 H 0.151 0.849
46 H 0.156 0.844
47 H 0.099 0.901
48 H 0.120 0.880
49 H 0.149 0.851
50 H 0.147 0.853
Dipole moment (debyes) X Y Z Total
from point charges 1.713 2.519 0.715 3.129
hybrid contribution -0.392 0.583 1.026 1.243
sum 1.322 3.102 1.741 3.795
Atomic orbital electron populations
1.86608 1.17808 1.79920 1.49303 1.24956 0.83871 1.10791 0.98411
0.95067 0.91636 0.74636 0.80106 1.20188 1.02509 0.95089 0.97733
1.20872 0.96324 0.93458 0.96192 1.20540 1.01195 1.01107 0.93528
1.19077 0.94341 0.90987 0.86705 1.86174 1.68532 1.36566 1.28755
1.22464 0.97979 0.93974 0.89458 1.20037 0.78108 0.88493 0.82999
1.90793 1.53298 1.16184 1.77883 1.45479 1.57028 1.13242 1.20754
1.21865 0.96267 0.94781 0.85492 0.87379 1.23619 0.95866 0.97621
1.01029 1.21683 0.92960 0.99843 0.94830 0.87995 1.19483 0.95143
0.92796 0.96133 1.21106 0.99754 0.97761 0.96468 1.20988 0.93621
0.98160 0.96373 1.21575 1.03547 0.93636 1.02476 1.18679 0.91522
0.86125 0.97178 1.86424 1.45740 1.40776 1.50208 1.19335 0.77551
0.74589 0.77127 1.93311 1.73520 1.55419 1.92369 1.93329 1.73081
1.50007 1.94707 1.93314 1.79464 1.93483 1.48382 1.20286 0.95373
1.00741 0.97510 1.23433 0.94659 1.01620 0.97430 1.21165 1.06996
0.93598 1.00751 1.20835 0.96268 0.99425 0.92924 0.77694 0.86451
1.18239 1.18651 0.84768 0.84610 0.88680 0.88565 0.76218 0.88299
0.90355 0.84928 0.84722 0.84875 0.84439 0.90137 0.87967 0.85078
0.85261
Number of geometries 1
Number of calculations of the screened coulomb radii 1
The total number of SCF iterations 13.
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 O -0.53 -0.57 12.83 -35.23 -0.45 -1.03 16
2 C -0.07 0.04 2.80 36.00 0.10 0.14 16
3 Si 0.68 -0.94 29.88 -169.99 -5.08 -6.02 16
4 C -0.15 0.02 5.35 -104.60 -0.56 -0.54 16
5 C -0.05 -0.02 9.68 -39.61 -0.38 -0.41 16
6 C -0.15 -0.18 9.99 -39.43 -0.39 -0.57 16
7 C 0.13 0.15 6.69 -39.22 -0.26 -0.12 16
8 O -0.29 -0.58 9.67 -39.33 -0.38 -0.96 16
9 C 0.04 -0.08 5.22 36.01 0.19 0.11 16
10 C 0.52 0.08 7.91 -10.98 -0.09 -0.01 16
11 O -0.51 -2.69 16.12 -14.34 -0.23 -2.92 16
12 N -0.71 2.25 5.27 -53.01 -0.28 1.97 16
13 C 0.12 -0.32 4.29 -67.12 -0.29 -0.61 16
14 H 0.11 -0.07 7.50 -51.93 -0.39 -0.46 16
15 C -0.14 0.43 7.27 -25.82 -0.19 0.24 16
16 C -0.07 0.28 3.86 -90.86 -0.35 -0.07 16
17 H 0.10 -0.50 8.09 -51.93 -0.42 -0.92 16
18 C -0.04 0.07 5.29 -104.65 -0.55 -0.49 16
19 C -0.13 0.26 8.61 -39.56 -0.34 -0.08 16
20 C -0.07 0.09 10.04 -39.60 -0.40 -0.31 16
21 C -0.19 -0.03 8.26 -39.43 -0.33 -0.36 16
22 C 0.11 0.08 6.48 -39.22 -0.25 -0.18 16
23 O -0.31 -0.41 10.37 -19.44 -0.20 -0.61 16
24 C 0.60 0.46 3.42 101.05 0.35 0.81 16
25 F -0.16 -0.14 15.56 2.25 0.04 -0.11 16
26 F -0.13 -0.13 17.53 2.25 0.04 -0.09 16
27 F -0.16 -0.13 15.56 2.25 0.04 -0.10 16
28 C -0.12 0.09 9.65 -39.44 -0.38 -0.29 16
29 C -0.13 0.55 7.29 -25.92 -0.19 0.36 16
30 C -0.21 0.19 9.04 -39.43 -0.36 -0.16 16
31 C -0.08 0.08 8.66 -39.60 -0.34 -0.27 16
32 H 0.38 -0.63 8.70 45.56 0.40 -0.24 16
33 H 0.12 -0.14 7.96 -51.93 -0.41 -0.55 16
34 H -0.26 -0.54 7.11 56.52 0.40 -0.14 16
35 H -0.26 -0.09 7.01 56.52 0.40 0.30 16
36 H 0.13 -0.04 8.06 -52.48 -0.42 -0.47 16
37 H 0.14 0.11 8.06 -52.49 -0.42 -0.31 16
38 H 0.10 -0.42 7.65 -51.93 -0.40 -0.82 16
39 H 0.10 -0.44 7.67 -51.93 -0.40 -0.84 16
40 H 0.40 -2.54 8.71 -40.82 -0.36 -2.90 16
41 H 0.10 -0.32 6.33 -51.93 -0.33 -0.65 16
42 H 0.08 -0.17 8.14 -51.93 -0.42 -0.59 16
43 H 0.13 -0.49 6.67 -52.49 -0.35 -0.84 16
44 H 0.13 -0.41 8.06 -52.49 -0.42 -0.83 16
45 H 0.13 -0.03 5.10 -52.48 -0.27 -0.30 16
46 H 0.14 -0.30 8.05 -52.48 -0.42 -0.73 16
47 H 0.08 -0.37 8.14 -51.93 -0.42 -0.80 16
48 H 0.10 -0.42 7.72 -51.93 -0.40 -0.82 16
49 H 0.13 -0.49 6.30 -52.49 -0.33 -0.82 16
50 H 0.13 -0.36 4.83 -52.49 -0.25 -0.61 16
LS Contribution 428.45 15.07 6.46 6.46
Total: 0.00 -9.80 428.45 -10.72 -20.52
By element:
Atomic # 1 Polarization: -8.67 SS G_CDS: -5.65 Total: -14.32 kcal
Atomic # 6 Polarization: 2.22 SS G_CDS: -5.02 Total: -2.80 kcal
Atomic # 7 Polarization: 2.25 SS G_CDS: -0.28 Total: 1.97 kcal
Atomic # 8 Polarization: -4.25 SS G_CDS: -1.27 Total: -5.52 kcal
Atomic # 9 Polarization: -0.41 SS G_CDS: 0.11 Total: -0.30 kcal
Atomic # 14 Polarization: -0.94 SS G_CDS: -5.08 Total: -6.02 kcal
Total LS contribution 6.46 Total: 6.46 kcal
Total: -9.80 -10.72 -20.52 kcal
The number of atoms in the molecule is 50
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.
s_22_10860230_2989410.mol2 50
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 -185.091 kcal
(2) G-P(sol) polarization free energy of solvation -9.798 kcal
(3) G-ENP(sol) elect.-nuc.-pol. free energy of system -194.889 kcal
(4) G-CDS(sol) cavity-dispersion-solvent structure free energy -10.725 kcal
(5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -20.523 kcal
(6) G-S(sol) free energy of system = (1) + (5) -205.613 kcal
1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED
Total computer time = 1.24 seconds