Wall clock time and date at job start Sat Apr 11 2020 06:12:50 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 O 1.42906 * 1 3 3 C 1.42896 * 113.99922 * 2 1 4 4 C 1.52999 * 109.46983 * 179.97438 * 3 2 1 5 5 C 1.53000 * 109.47448 * 184.35150 * 4 3 2 6 6 N 1.46501 * 109.44509 * 302.67512 * 5 4 3 7 7 C 1.34778 * 119.99850 * 296.81598 * 6 5 4 8 8 O 1.21280 * 120.00301 * 5.12259 * 7 6 5 9 9 C 1.50708 * 120.00171 * 185.11846 * 7 6 5 10 10 H 1.08994 * 110.45413 * 298.85382 * 9 7 6 11 11 C 1.54509 * 110.50653 * 61.45489 * 9 7 6 12 12 C 1.54488 * 104.06109 * 118.64702 * 11 9 7 13 13 O 1.44427 * 104.79970 * 23.97698 * 12 11 9 14 14 C 1.44421 * 105.27724 * 319.48775 * 13 12 11 15 15 H 1.09005 * 110.37182 * 281.68484 * 14 13 12 16 16 C 1.52997 * 110.37619 * 159.34506 * 14 13 12 17 17 C 1.53039 * 109.46299 * 62.63972 * 5 4 3 18 18 C 1.53190 * 109.31232 * 181.39014 * 17 5 4 19 19 N 1.46920 * 108.77728 * 305.36225 * 18 17 5 20 20 C 1.36937 * 120.63382 * 233.58687 * 19 18 17 21 21 H 1.08002 * 120.00181 * 148.29975 * 20 19 18 22 22 C 1.38813 * 120.00034 * 328.30380 * 20 19 18 23 23 N 1.31619 * 119.99572 * 349.19933 * 22 20 19 24 24 Si 1.86797 * 120.00147 * 169.20092 * 22 20 19 25 25 H 1.48494 * 109.46973 * 180.02562 * 24 22 20 26 26 H 1.48504 * 109.47026 * 299.99823 * 24 22 20 27 27 H 1.48494 * 109.46927 * 59.99908 * 24 22 20 28 28 C 1.46931 * 118.73552 * 53.86012 * 19 18 17 29 29 C 1.53035 * 109.46416 * 182.71012 * 5 4 3 30 30 H 1.09000 * 109.47171 * 300.00165 * 1 2 3 31 31 H 1.09004 * 109.46518 * 60.00108 * 1 2 3 32 32 H 1.08993 * 109.47013 * 179.97438 * 1 2 3 33 33 H 1.08999 * 109.47314 * 60.00335 * 3 2 1 34 34 H 1.09000 * 109.47319 * 299.99594 * 3 2 1 35 35 H 1.08998 * 109.47206 * 64.34376 * 4 3 2 36 36 H 1.09000 * 109.46996 * 304.34808 * 4 3 2 37 37 H 0.96997 * 120.00339 * 116.81515 * 6 5 4 38 38 H 1.08999 * 110.50854 * 237.28828 * 11 9 7 39 39 H 1.09001 * 110.51599 * 0.02562 * 11 9 7 40 40 H 1.08996 * 110.37264 * 142.80799 * 12 11 9 41 41 H 1.08998 * 110.36636 * 265.14498 * 12 11 9 42 42 H 1.08996 * 109.46956 * 304.62589 * 16 14 13 43 43 H 1.09007 * 109.46596 * 64.61609 * 16 14 13 44 44 H 1.08990 * 109.47715 * 184.61937 * 16 14 13 45 45 H 1.08993 * 109.49765 * 61.43589 * 17 5 4 46 46 H 1.09005 * 109.51929 * 301.35644 * 17 5 4 47 47 H 1.09000 * 109.58256 * 185.57180 * 18 17 5 48 48 H 1.09001 * 109.58464 * 65.15479 * 18 17 5 49 49 H 0.97000 * 119.99633 * 179.97438 * 23 22 20 50 50 H 1.08996 * 109.58427 * 65.93063 * 28 19 18 51 51 H 1.08998 * 109.58500 * 186.35413 * 28 19 18 52 52 H 1.09005 * 109.49981 * 298.56768 * 29 5 4 53 53 H 1.09008 * 109.49889 * 58.65893 * 29 5 4 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 8 1.4291 0.0000 0.0000 3 6 2.0103 1.3054 0.0000 4 6 3.5355 1.1846 0.0006 5 6 4.1575 2.5782 0.1101 6 7 3.6818 3.4128 -0.9960 7 6 3.9804 3.0806 -2.2676 8 8 4.5623 2.0428 -2.5026 9 6 3.5910 3.9986 -3.3976 10 1 2.5085 4.1210 -3.4332 11 6 4.2861 5.3700 -3.2448 12 6 5.1549 5.4942 -4.5162 13 8 4.5184 4.6312 -5.4837 14 6 4.1220 3.4564 -4.7431 15 1 4.9800 2.8048 -4.5775 16 6 3.0168 2.7049 -5.4878 17 6 3.7507 3.2150 1.4409 18 6 4.3467 4.6234 1.5317 19 7 5.7984 4.5369 1.3229 20 6 6.6676 5.0750 2.2340 21 1 7.6346 4.6206 2.3915 22 6 6.3058 6.2045 2.9553 23 7 5.2283 6.8820 2.6202 24 14 7.3481 6.7629 4.4014 25 1 6.7515 7.9843 4.9991 26 1 7.3961 5.6854 5.4222 27 1 8.7250 7.0623 3.9326 28 6 6.2997 3.8675 0.1149 29 6 5.6820 2.4628 0.0427 30 1 -0.3633 0.5139 0.8900 31 1 -0.3632 0.5139 -0.8901 32 1 -0.3633 -1.0276 -0.0005 33 1 1.6887 1.8463 0.8900 34 1 1.6887 1.8463 -0.8900 35 1 3.8629 0.7122 -0.9255 36 1 3.8515 0.5780 0.8494 37 1 3.1521 4.2045 -0.8132 38 1 3.5473 6.1706 -3.2074 39 1 4.9117 5.3839 -2.3523 40 1 5.1610 6.5242 -4.8725 41 1 6.1712 5.1550 -4.3157 42 1 2.1843 3.3814 -5.6813 43 1 3.4069 2.3292 -6.4338 44 1 2.6720 1.8691 -4.8793 45 1 4.1256 2.6076 2.2645 46 1 2.6639 3.2754 1.4986 47 1 4.1435 5.0432 2.5168 48 1 3.9041 5.2576 0.7635 49 1 4.9752 7.6711 3.1245 50 1 6.0133 4.4413 -0.7664 51 1 7.3857 3.7885 0.1649 52 1 6.0388 1.8623 0.8796 53 1 5.9699 1.9879 -0.8952 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 ZINC001151374191.mol2 53 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 06:12:50 Heat of formation + Delta-G solvation = -111.641824 kcal Electronic energy + Delta-G solvation = -32905.770276 eV Core-core repulsion = 28777.966864 eV Total energy + Delta-G solvation = -4127.803411 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 1.24 seconds Orbital eigenvalues (eV) -40.77327 -39.24641 -37.74588 -37.13942 -34.59681 -32.92987 -31.84676 -31.64080 -31.05752 -30.00980 -28.96890 -26.62016 -26.39420 -24.86369 -23.10664 -22.65639 -22.19042 -21.91952 -20.56641 -19.87982 -18.73765 -17.56836 -16.83831 -16.44153 -16.02067 -15.91120 -15.59702 -15.42906 -15.03832 -14.84680 -14.57001 -14.31843 -13.87777 -13.68578 -13.50309 -13.47880 -13.22267 -12.95274 -12.70117 -12.49472 -12.39904 -12.35028 -11.83559 -11.71090 -11.54857 -11.36297 -11.26384 -11.16037 -11.04502 -11.03657 -10.92586 -10.79877 -10.76114 -10.41607 -10.34926 -9.96265 -9.88619 -9.81946 -9.69011 -9.48928 -9.09086 -8.68635 -8.52721 -6.65925 -5.85058 -3.32228 2.80584 3.34134 3.36241 3.39578 3.41199 3.78476 3.84628 4.44349 4.51977 4.60392 4.78090 4.97987 5.06352 5.14070 5.19857 5.22749 5.26444 5.30519 5.32648 5.33298 5.42284 5.46794 5.50726 5.53865 5.54983 5.56346 5.59868 5.73233 5.75999 5.90255 5.91599 6.00027 6.06681 6.08246 6.15898 6.25147 6.25630 6.37452 6.47646 6.58260 6.62453 6.77187 6.80056 6.90107 7.01018 7.19291 7.23723 7.54315 7.73526 7.82154 8.42102 8.46113 9.16950 9.78063 10.36591 11.23009 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.009146 B = 0.004417 C = 0.003260 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 3060.596628 B = 6337.832364 C = 8588.194660 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.033 3.967 2 O -0.393 6.393 3 C 0.066 3.934 4 C -0.128 4.128 5 C 0.194 3.806 6 N -0.709 5.709 7 C 0.526 3.474 8 O -0.537 6.537 9 C -0.143 4.143 10 H 0.104 0.896 11 C -0.149 4.149 12 C 0.048 3.952 13 O -0.375 6.375 14 C 0.087 3.913 15 H 0.089 0.911 16 C -0.142 4.142 17 C -0.150 4.150 18 C 0.175 3.825 19 N -0.589 5.589 20 C -0.252 4.252 21 H 0.063 0.937 22 C 0.006 3.994 23 N -0.906 5.906 24 Si 0.903 3.097 25 H -0.290 1.290 26 H -0.283 1.283 27 H -0.283 1.283 28 C 0.152 3.848 29 C -0.142 4.142 30 H 0.039 0.961 31 H 0.037 0.963 32 H 0.082 0.918 33 H 0.051 0.949 34 H 0.043 0.957 35 H 0.087 0.913 36 H 0.073 0.927 37 H 0.400 0.600 38 H 0.083 0.917 39 H 0.091 0.909 40 H 0.093 0.907 41 H 0.062 0.938 42 H 0.060 0.940 43 H 0.063 0.937 44 H 0.071 0.929 45 H 0.073 0.927 46 H 0.054 0.946 47 H 0.089 0.911 48 H 0.016 0.984 49 H 0.254 0.746 50 H 0.015 0.985 51 H 0.051 0.949 52 H 0.065 0.935 53 H 0.074 0.926 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -8.975 -6.694 -10.355 15.251 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 -0.064 4.064 2 O -0.313 6.313 3 C -0.010 4.010 4 C -0.166 4.166 5 C 0.109 3.891 6 N -0.360 5.360 7 C 0.312 3.688 8 O -0.414 6.414 9 C -0.164 4.164 10 H 0.123 0.877 11 C -0.187 4.187 12 C -0.029 4.029 13 O -0.294 6.294 14 C 0.029 3.971 15 H 0.106 0.894 16 C -0.200 4.200 17 C -0.190 4.190 18 C 0.049 3.951 19 N -0.312 5.312 20 C -0.382 4.382 21 H 0.080 0.920 22 C -0.192 4.192 23 N -0.551 5.551 24 Si 0.733 3.267 25 H -0.216 1.216 26 H -0.210 1.210 27 H -0.209 1.209 28 C 0.026 3.974 29 C -0.182 4.182 30 H 0.058 0.942 31 H 0.056 0.944 32 H 0.100 0.900 33 H 0.069 0.931 34 H 0.061 0.939 35 H 0.106 0.894 36 H 0.092 0.908 37 H 0.235 0.765 38 H 0.102 0.898 39 H 0.110 0.890 40 H 0.111 0.889 41 H 0.080 0.920 42 H 0.079 0.921 43 H 0.082 0.918 44 H 0.090 0.910 45 H 0.091 0.909 46 H 0.073 0.927 47 H 0.107 0.893 48 H 0.034 0.966 49 H 0.064 0.936 50 H 0.033 0.967 51 H 0.070 0.930 52 H 0.084 0.916 53 H 0.092 0.908 Dipole moment (debyes) X Y Z Total from point charges -8.511 -7.388 -10.643 15.502 hybrid contribution -0.066 1.095 1.216 1.637 sum -8.577 -6.293 -9.428 14.214 Atomic orbital electron populations 1.22690 0.81626 1.02333 0.99759 1.87873 1.19214 1.28776 1.95389 1.22588 0.94637 0.83961 0.99825 1.21974 0.92527 0.97742 1.04375 1.20206 0.94529 0.88240 0.86142 1.46150 1.54936 1.29590 1.05334 1.20137 0.78811 0.86221 0.83666 1.90620 1.41760 1.25023 1.84024 1.22758 1.02679 0.95824 0.95189 0.87748 1.22999 1.00068 0.95374 1.00231 1.23374 0.96175 0.95444 0.87902 1.89105 1.77766 1.30090 1.32460 1.22876 0.98136 0.87887 0.88197 0.89352 1.21765 0.97524 0.99926 1.00747 1.22625 0.99427 1.01975 0.94933 1.20727 0.83321 0.89254 1.01803 1.43981 1.01497 1.65601 1.20122 1.19138 0.98763 1.05548 1.14754 0.91963 1.25131 0.98053 0.95560 1.00484 1.69940 1.26289 1.18316 1.40529 0.86358 0.79929 0.77803 0.82578 1.21632 1.20986 1.20877 1.20931 0.96660 0.90287 0.89564 1.22455 0.93322 1.00274 1.02181 0.94212 0.94429 0.89962 0.93123 0.93901 0.89405 0.90790 0.76484 0.89813 0.89021 0.88874 0.91968 0.92118 0.91800 0.90993 0.90877 0.92716 0.89282 0.96598 0.93601 0.96744 0.93049 0.91637 0.90758 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 16. 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 0.03 0.33 11.01 101.05 1.11 1.45 16 2 O -0.39 -5.55 10.70 -35.23 -0.38 -5.93 16 3 C 0.07 0.90 5.50 37.16 0.20 1.10 16 4 C -0.13 -1.92 4.42 -26.73 -0.12 -2.04 16 5 C 0.19 3.05 0.35 -131.78 -0.05 3.01 16 6 N -0.71 -10.07 3.15 -47.57 -0.15 -10.22 16 7 C 0.53 7.53 6.28 -10.98 -0.07 7.46 16 8 O -0.54 -9.06 11.76 5.56 0.07 -8.99 16 9 C -0.14 -1.72 3.05 -90.20 -0.28 -2.00 16 10 H 0.10 1.08 7.88 -51.93 -0.41 0.67 16 11 C -0.15 -1.77 6.68 -25.16 -0.17 -1.94 16 12 C 0.05 0.57 7.63 37.94 0.29 0.86 16 13 O -0.37 -5.02 11.34 -35.23 -0.40 -5.42 16 14 C 0.09 1.10 3.25 -25.96 -0.08 1.02 16 15 H 0.09 1.27 6.96 -51.93 -0.36 0.91 16 16 C -0.14 -1.52 9.52 37.16 0.35 -1.17 16 17 C -0.15 -2.54 4.69 -26.61 -0.12 -2.67 16 18 C 0.18 3.72 4.97 -3.72 -0.02 3.70 16 19 N -0.59 -13.74 2.98 -172.06 -0.51 -14.25 16 20 C -0.25 -6.63 9.58 -15.06 -0.14 -6.77 16 21 H 0.06 1.64 7.85 -52.49 -0.41 1.22 16 22 C 0.01 0.17 5.04 -17.43 -0.09 0.08 16 23 N -0.91 -24.78 11.08 55.49 0.62 -24.17 16 24 Si 0.90 21.05 29.57 -169.99 -5.03 16.02 16 25 H -0.29 -6.82 7.11 56.52 0.40 -6.42 16 26 H -0.28 -6.57 7.11 56.52 0.40 -6.17 16 27 H -0.28 -6.56 7.11 56.52 0.40 -6.16 16 28 C 0.15 3.10 6.28 -3.49 -0.02 3.08 16 29 C -0.14 -2.53 4.63 -26.39 -0.12 -2.66 16 30 H 0.04 0.37 8.14 -51.93 -0.42 -0.05 16 31 H 0.04 0.35 8.14 -51.93 -0.42 -0.08 16 32 H 0.08 0.70 8.14 -51.93 -0.42 0.28 16 33 H 0.05 0.66 6.26 -51.93 -0.32 0.34 16 34 H 0.04 0.56 7.68 -51.93 -0.40 0.17 16 35 H 0.09 1.47 6.30 -51.93 -0.33 1.14 16 36 H 0.07 1.13 8.14 -51.93 -0.42 0.70 16 37 H 0.40 5.35 7.38 -40.82 -0.30 5.04 16 38 H 0.08 0.88 8.14 -51.93 -0.42 0.46 16 39 H 0.09 1.28 6.74 -51.93 -0.35 0.93 16 40 H 0.09 0.94 8.14 -51.93 -0.42 0.52 16 41 H 0.06 0.75 8.14 -51.93 -0.42 0.33 16 42 H 0.06 0.59 8.14 -51.93 -0.42 0.17 16 43 H 0.06 0.65 8.14 -51.92 -0.42 0.22 16 44 H 0.07 0.76 8.14 -51.93 -0.42 0.34 16 45 H 0.07 1.31 8.14 -51.93 -0.42 0.89 16 46 H 0.05 0.81 6.34 -51.93 -0.33 0.49 16 47 H 0.09 2.19 6.14 -51.93 -0.32 1.87 16 48 H 0.02 0.34 7.00 -51.93 -0.36 -0.02 16 49 H 0.25 6.80 8.31 -40.82 -0.34 6.46 16 50 H 0.01 0.30 6.69 -51.93 -0.35 -0.05 16 51 H 0.05 1.07 7.93 -51.93 -0.41 0.66 16 52 H 0.06 1.19 8.14 -51.93 -0.42 0.77 16 53 H 0.07 1.35 6.16 -51.92 -0.32 1.03 16 LS Contribution 398.11 15.07 6.00 6.00 Total: -1.00 -29.50 398.11 -8.29 -37.79 By element: Atomic # 1 Polarization: 15.84 SS G_CDS: -9.18 Total: 6.66 kcal Atomic # 6 Polarization: 1.84 SS G_CDS: 0.68 Total: 2.52 kcal Atomic # 7 Polarization: -48.59 SS G_CDS: -0.05 Total: -48.64 kcal Atomic # 8 Polarization: -19.63 SS G_CDS: -0.71 Total: -20.34 kcal Atomic # 14 Polarization: 21.05 SS G_CDS: -5.03 Total: 16.02 kcal Total LS contribution 6.00 Total: 6.00 kcal Total: -29.50 -8.29 -37.79 kcal The number of atoms in the molecule is 53 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. ZINC001151374191.mol2 53 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 -73.853 kcal (2) G-P(sol) polarization free energy of solvation -29.500 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -103.353 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.289 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -37.789 kcal (6) G-S(sol) free energy of system = (1) + (5) -111.642 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.24 seconds