Wall clock time and date at job start Tue Mar 31 2020 21:39:54 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 1.30992 * 1 3 3 C 1.50705 * 119.99939 * 2 1 4 4 C 1.52993 * 109.47326 * 118.56415 * 3 2 1 5 5 C 1.50697 * 109.54643 * 293.38543 * 4 3 2 6 6 O 1.21276 * 120.00417 * 123.45825 * 5 4 3 7 7 N 1.34783 * 119.99856 * 303.45307 * 5 4 3 8 8 C 1.46923 * 120.62761 * 354.54312 * 7 5 4 9 9 C 1.53189 * 108.77781 * 126.11357 * 8 7 5 10 10 C 1.53039 * 109.31110 * 54.63549 * 9 8 7 11 11 H 1.09006 * 109.46416 * 178.63477 * 10 9 8 12 12 N 1.46494 * 109.46603 * 58.65453 * 10 9 8 13 13 C 1.36936 * 120.00008 * 84.99738 * 12 10 9 14 14 H 1.08002 * 119.99841 * 0.02562 * 13 12 10 15 15 C 1.38810 * 120.00431 * 180.02562 * 13 12 10 16 16 N 1.31621 * 120.00211 * 179.97438 * 15 13 12 17 17 Si 1.86804 * 119.99823 * 0.02562 * 15 13 12 18 18 H 1.48492 * 109.47320 * 89.99644 * 17 15 13 19 19 H 1.48501 * 109.47225 * 210.00150 * 17 15 13 20 20 H 1.48506 * 109.46670 * 329.99417 * 17 15 13 21 21 C 1.53045 * 109.53938 * 298.63482 * 10 9 8 22 22 H 1.09006 * 109.49589 * 301.38455 * 21 10 9 23 23 C 1.52993 * 109.50155 * 181.31611 * 21 10 9 24 24 C 1.46927 * 120.63098 * 174.25906 * 7 5 4 25 25 C 1.53185 * 109.61385 * 53.60592 * 4 3 2 26 26 C 1.53092 * 109.16004 * 176.89361 * 25 4 3 27 27 O 1.42905 * 109.41625 * 302.38787 * 26 25 4 28 28 C 1.42895 * 114.09756 * 61.16000 * 27 26 25 29 29 C 1.53098 * 109.41811 * 298.84429 * 28 27 26 30 30 H 1.07999 * 119.99897 * 178.18849 * 1 2 3 31 31 H 1.08004 * 120.00144 * 358.19733 * 1 2 3 32 32 H 1.07997 * 120.00442 * 180.02562 * 2 1 3 33 33 H 1.09005 * 109.47057 * 358.56459 * 3 2 1 34 34 H 1.08997 * 109.47049 * 238.56889 * 3 2 1 35 35 H 1.08998 * 109.58971 * 245.90416 * 8 7 5 36 36 H 1.09000 * 109.59241 * 6.18529 * 8 7 5 37 37 H 1.08998 * 109.50120 * 174.58212 * 9 8 7 38 38 H 1.09005 * 109.50091 * 294.65485 * 9 8 7 39 39 H 0.96997 * 120.00491 * 265.00647 * 12 10 9 40 40 H 0.97003 * 119.99352 * 180.02562 * 16 15 13 41 41 H 1.09000 * 109.47342 * 60.00254 * 23 21 10 42 42 H 1.09003 * 109.47358 * 179.97438 * 23 21 10 43 43 H 1.08993 * 109.47164 * 300.00020 * 23 21 10 44 44 H 1.08991 * 109.58617 * 353.67209 * 24 7 5 45 45 H 1.08996 * 109.58045 * 114.10099 * 24 7 5 46 46 H 1.09001 * 109.51757 * 296.79411 * 25 4 3 47 47 H 1.08996 * 109.52619 * 56.98757 * 25 4 3 48 48 H 1.09007 * 109.48145 * 182.40617 * 26 25 4 49 49 H 1.08997 * 109.49634 * 62.37671 * 26 25 4 50 50 H 1.08998 * 109.48198 * 178.85968 * 28 27 26 51 51 H 1.09002 * 109.49004 * 58.83086 * 28 27 26 52 52 H 1.09000 * 109.51641 * 297.70541 * 29 28 27 53 53 H 1.08992 * 109.52501 * 177.51410 * 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 1.3099 0.0000 0.0000 3 6 2.0634 1.3052 0.0000 4 6 2.9157 1.4020 1.2668 5 6 2.0173 1.5012 2.4726 6 8 2.1170 0.6930 3.3713 7 7 1.1029 2.4882 2.5523 8 6 1.0493 3.5432 1.5312 9 6 -0.3749 3.6164 0.9719 10 6 -1.3624 3.8075 2.1254 11 1 -2.3746 3.8842 1.7281 12 7 -1.0300 5.0338 2.8545 13 6 -1.5083 6.2406 2.4185 14 1 -2.1310 6.2881 1.5373 15 6 -1.1930 7.4027 3.1090 16 7 -1.6524 8.5627 2.6895 17 14 -0.1154 7.3206 4.6327 18 1 1.3094 7.4631 4.2396 19 1 -0.4853 8.4196 5.5604 20 1 -0.3140 6.0137 5.3094 21 6 -1.2774 2.6106 3.0755 22 1 -1.5011 1.6949 2.5281 23 6 -2.2880 2.7868 4.2106 24 6 0.1367 2.5260 3.6586 25 6 3.8003 0.1572 1.3879 26 6 4.7036 0.3002 2.6156 27 8 5.4847 1.4908 2.4946 28 6 4.7121 2.6909 2.4251 29 6 3.8090 2.6440 1.1898 30 1 -0.5400 -0.9348 -0.0296 31 1 -0.5400 0.9349 0.0294 32 1 1.8500 -0.9352 -0.0004 33 1 1.3553 2.1335 -0.0257 34 1 2.7092 1.3519 -0.8768 35 1 1.3152 4.5002 1.9801 36 1 1.7480 3.3100 0.7277 37 1 -0.4527 4.4578 0.2834 38 1 -0.6064 2.6914 0.4437 39 1 -0.4710 4.9912 3.6460 40 1 -1.4316 9.3748 3.1719 41 1 -3.2938 2.8498 3.7951 42 1 -2.2274 1.9340 4.8867 43 1 -2.0633 3.7019 4.7583 44 1 0.2314 1.6204 4.2575 45 1 0.3281 3.4001 4.2810 46 1 3.1720 -0.7266 1.4990 47 1 4.4147 0.0585 0.4931 48 1 5.3654 -0.5634 2.6826 49 1 4.0896 0.3582 3.5143 50 1 5.3798 3.5495 2.3549 51 1 4.0979 2.7804 3.3212 52 1 4.4236 2.5955 0.2910 53 1 3.1871 3.5386 1.1591 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=GENORG IOFR=1.4345 ALPHA=0.00 BETA=0.00 GAMMA=38.93 & DIELEC=2.06 FACARB=0.00 FEHALO=0.00 DEV ZINC001715426966.mol2 53 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 21:39:54 Heat of formation + Delta-G solvation = -32.102904 kcal Electronic energy + Delta-G solvation = -32921.823446 eV Core-core repulsion = 28987.925152 eV Total energy + Delta-G solvation = -3933.898293 eV No. of doubly occupied orbitals = 65 Molecular weight (most abundant/longest-lived isotopes) = 336.220 amu Computer time = 1.07 seconds Orbital eigenvalues (eV) -41.47421 -38.97048 -37.51213 -36.27994 -34.45992 -33.19211 -32.63747 -31.58683 -31.09282 -29.84067 -27.95276 -26.51611 -25.62009 -23.91278 -23.52351 -23.05863 -21.74353 -21.64351 -19.92137 -19.24501 -18.29393 -17.80050 -16.51075 -16.48302 -16.14633 -15.89413 -15.33845 -15.04849 -14.77538 -14.62584 -14.47580 -14.28740 -14.03524 -13.71214 -13.62433 -13.20706 -13.12237 -12.76691 -12.64706 -12.56768 -12.29472 -12.13765 -11.77519 -11.68345 -11.58572 -11.49663 -11.41680 -11.19962 -11.04198 -10.97996 -10.69789 -10.61805 -10.58952 -10.30520 -10.19990 -9.91817 -9.63255 -9.59584 -9.50950 -9.16995 -8.99458 -8.37788 -7.34105 -5.84269 -3.19687 2.17850 2.68455 3.10852 3.29349 3.32197 3.39631 3.83237 4.27351 4.34444 4.51203 4.59913 4.79570 4.83640 4.91360 4.99467 5.05403 5.11237 5.14162 5.19427 5.23962 5.36597 5.39764 5.45783 5.50866 5.52730 5.55970 5.58019 5.61458 5.64008 5.68334 5.73562 5.81350 5.88008 5.89645 5.91265 5.95261 6.02973 6.09003 6.17035 6.23895 6.32904 6.40380 6.46786 6.60480 6.60852 6.66416 6.71065 6.83841 7.14720 7.57326 7.91936 8.26736 8.34863 9.13010 9.85662 10.05339 11.34078 Molecular weight = 336.22amu Principal moments of inertia in cm(-1) A = 0.013308 B = 0.004548 C = 0.004037 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2103.423964 B = 6155.649783 C = 6934.211914 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.186 4.186 2 C -0.157 4.157 3 C -0.103 4.103 4 C -0.071 4.071 5 C 0.529 3.471 6 O -0.548 6.548 7 N -0.598 5.598 8 C 0.089 3.911 9 C -0.154 4.154 10 C 0.186 3.814 11 H 0.059 0.941 12 N -0.743 5.743 13 C -0.241 4.241 14 H 0.090 0.910 15 C 0.008 3.992 16 N -0.932 5.932 17 Si 0.877 3.123 18 H -0.285 1.285 19 H -0.291 1.291 20 H -0.278 1.278 21 C -0.110 4.110 22 H 0.071 0.929 23 C -0.138 4.138 24 C 0.118 3.882 25 C -0.125 4.125 26 C 0.047 3.953 27 O -0.385 6.385 28 C 0.060 3.940 29 C -0.161 4.161 30 H 0.095 0.905 31 H 0.101 0.899 32 H 0.107 0.893 33 H 0.096 0.904 34 H 0.082 0.918 35 H 0.080 0.920 36 H 0.096 0.904 37 H 0.080 0.920 38 H 0.055 0.945 39 H 0.360 0.640 40 H 0.259 0.741 41 H 0.058 0.942 42 H 0.045 0.955 43 H 0.064 0.936 44 H 0.085 0.915 45 H 0.065 0.935 46 H 0.080 0.920 47 H 0.074 0.926 48 H 0.088 0.912 49 H 0.079 0.921 50 H 0.096 0.904 51 H 0.049 0.951 52 H 0.084 0.916 53 H 0.094 0.906 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 8.574 -16.962 -5.044 19.664 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 -0.222 4.222 2 C -0.175 4.175 3 C -0.139 4.139 4 C -0.074 4.074 5 C 0.317 3.683 6 O -0.426 6.426 7 N -0.330 5.330 8 C -0.033 4.033 9 C -0.194 4.194 10 C 0.076 3.924 11 H 0.077 0.923 12 N -0.386 5.386 13 C -0.371 4.371 14 H 0.108 0.892 15 C -0.188 4.188 16 N -0.580 5.580 17 Si 0.707 3.293 18 H -0.212 1.212 19 H -0.217 1.217 20 H -0.204 1.204 21 C -0.130 4.130 22 H 0.089 0.911 23 C -0.196 4.196 24 C -0.004 4.004 25 C -0.163 4.163 26 C -0.030 4.030 27 O -0.304 6.304 28 C -0.017 4.017 29 C -0.199 4.199 30 H 0.113 0.887 31 H 0.120 0.880 32 H 0.125 0.875 33 H 0.114 0.886 34 H 0.100 0.900 35 H 0.098 0.902 36 H 0.114 0.886 37 H 0.098 0.902 38 H 0.073 0.927 39 H 0.194 0.806 40 H 0.070 0.930 41 H 0.077 0.923 42 H 0.064 0.936 43 H 0.083 0.917 44 H 0.104 0.896 45 H 0.083 0.917 46 H 0.099 0.901 47 H 0.092 0.908 48 H 0.106 0.894 49 H 0.097 0.903 50 H 0.115 0.885 51 H 0.067 0.933 52 H 0.103 0.897 53 H 0.112 0.888 Dipole moment (debyes) X Y Z Total from point charges 8.693 -17.171 -4.679 19.807 hybrid contribution 0.355 0.211 1.025 1.105 sum 9.048 -16.961 -3.654 19.567 Atomic orbital electron populations 1.23977 0.96014 1.02106 1.00120 1.22815 0.95980 0.97999 1.00705 1.21284 0.99171 0.97424 0.96048 1.20794 0.94925 0.97584 0.94116 1.20323 0.80402 0.80196 0.87414 1.90584 1.69752 1.41929 1.40359 1.48052 1.32551 1.25924 1.26451 1.22359 0.98888 0.90896 0.91143 1.22618 0.95478 1.01138 1.00213 1.20154 0.96500 0.85439 0.90278 0.92256 1.42836 1.61486 1.02903 1.31420 1.19046 1.25652 0.82708 1.09718 0.89172 1.24624 1.00294 0.95305 0.98536 1.69689 1.49306 0.97484 1.41510 0.86687 0.81095 0.76994 0.84493 1.21155 1.21716 1.20441 1.21744 0.94197 0.99260 0.97845 0.91081 1.21677 0.98652 1.01584 0.97721 1.21622 0.87586 1.02543 0.88657 1.22031 0.97748 0.96914 0.99614 1.22887 0.94389 0.87197 0.98494 1.87880 1.33688 1.14341 1.94481 1.22539 0.94716 0.87964 0.96433 1.22672 0.98823 0.97705 1.00687 0.88663 0.88045 0.87468 0.88645 0.89965 0.90226 0.88632 0.90156 0.92681 0.80594 0.93049 0.92340 0.93598 0.91658 0.89636 0.91692 0.90129 0.90762 0.89423 0.90293 0.88541 0.93270 0.89702 0.88830 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 -0.19 -1.91 14.32 29.02 0.42 -1.50 16 2 C -0.16 -1.59 8.08 -36.02 -0.29 -1.88 16 3 C -0.10 -1.01 4.36 -27.88 -0.12 -1.14 16 4 C -0.07 -0.80 0.28 -155.48 -0.04 -0.85 16 5 C 0.53 7.48 4.69 -10.98 -0.05 7.43 16 6 O -0.55 -9.18 13.17 5.56 0.07 -9.11 16 7 N -0.60 -8.52 2.96 -172.78 -0.51 -9.03 16 8 C 0.09 1.22 3.90 -3.71 -0.01 1.21 16 9 C -0.15 -2.23 5.41 -26.61 -0.14 -2.37 16 10 C 0.19 3.14 2.53 -67.89 -0.17 2.97 16 11 H 0.06 1.06 8.08 -51.93 -0.42 0.64 16 12 N -0.74 -15.53 3.44 -53.39 -0.18 -15.71 16 13 C -0.24 -6.21 10.41 -15.06 -0.16 -6.37 16 14 H 0.09 2.51 8.06 -52.49 -0.42 2.09 16 15 C 0.01 0.23 5.50 -17.43 -0.10 0.14 16 16 N -0.93 -28.01 13.97 55.49 0.78 -27.24 16 17 Si 0.88 21.18 27.74 -169.99 -4.71 16.47 16 18 H -0.28 -6.85 7.11 56.52 0.40 -6.45 16 19 H -0.29 -7.25 7.11 56.52 0.40 -6.85 16 20 H -0.28 -6.35 6.52 56.52 0.37 -5.98 16 21 C -0.11 -1.63 2.67 -90.50 -0.24 -1.87 16 22 H 0.07 0.98 8.14 -51.93 -0.42 0.55 16 23 C -0.14 -2.03 9.05 37.15 0.34 -1.70 16 24 C 0.12 1.81 5.41 -3.71 -0.02 1.79 16 25 C -0.13 -1.36 4.08 -26.59 -0.11 -1.47 16 26 C 0.05 0.57 6.55 37.21 0.24 0.81 16 27 O -0.39 -5.10 10.77 -35.23 -0.38 -5.48 16 28 C 0.06 0.73 6.62 37.21 0.25 0.98 16 29 C -0.16 -1.73 4.59 -26.59 -0.12 -1.85 16 30 H 0.10 0.88 8.06 -52.49 -0.42 0.46 16 31 H 0.10 1.09 5.60 -52.48 -0.29 0.80 16 32 H 0.11 1.00 7.05 -52.49 -0.37 0.63 16 33 H 0.10 0.99 3.37 -51.93 -0.18 0.81 16 34 H 0.08 0.69 8.14 -51.93 -0.42 0.26 16 35 H 0.08 1.28 7.74 -51.93 -0.40 0.88 16 36 H 0.10 1.10 2.63 -51.93 -0.14 0.96 16 37 H 0.08 1.27 8.14 -51.93 -0.42 0.84 16 38 H 0.05 0.69 5.28 -51.93 -0.27 0.42 16 39 H 0.36 7.64 3.79 -40.82 -0.15 7.49 16 40 H 0.26 7.50 8.31 -40.82 -0.34 7.16 16 41 H 0.06 0.83 8.14 -51.93 -0.42 0.41 16 42 H 0.04 0.59 8.14 -51.93 -0.42 0.17 16 43 H 0.06 1.10 7.54 -51.93 -0.39 0.71 16 44 H 0.09 1.33 7.04 -51.93 -0.37 0.97 16 45 H 0.06 1.09 6.64 -51.93 -0.34 0.75 16 46 H 0.08 0.89 6.62 -51.93 -0.34 0.55 16 47 H 0.07 0.70 8.14 -51.93 -0.42 0.28 16 48 H 0.09 0.91 8.14 -51.93 -0.42 0.49 16 49 H 0.08 1.14 5.69 -51.93 -0.30 0.85 16 50 H 0.10 1.01 8.14 -51.93 -0.42 0.59 16 51 H 0.05 0.68 7.38 -51.93 -0.38 0.30 16 52 H 0.08 0.79 8.14 -51.93 -0.42 0.36 16 53 H 0.09 1.00 4.87 -51.93 -0.25 0.74 16 LS Contribution 378.24 15.07 5.70 5.70 Total: -1.00 -30.16 378.24 -8.00 -38.16 By element: Atomic # 1 Polarization: 20.32 SS G_CDS: -8.42 Total: 11.90 kcal Atomic # 6 Polarization: -5.31 SS G_CDS: -0.34 Total: -5.65 kcal Atomic # 7 Polarization: -52.06 SS G_CDS: 0.08 Total: -51.98 kcal Atomic # 8 Polarization: -14.29 SS G_CDS: -0.31 Total: -14.59 kcal Atomic # 14 Polarization: 21.18 SS G_CDS: -4.71 Total: 16.47 kcal Total LS contribution 5.70 Total: 5.70 kcal Total: -30.16 -8.00 -38.16 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. ZINC001715426966.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 6.060 kcal (2) G-P(sol) polarization free energy of solvation -30.159 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -24.099 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.004 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -38.163 kcal (6) G-S(sol) free energy of system = (1) + (5) -32.103 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.07 seconds