Wall clock time and date at job start Wed Apr 1 2020 00:37:07 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 1.42903 * 1 3 3 C 1.42902 * 113.99509 * 2 1 4 4 C 1.53001 * 109.46832 * 180.02562 * 3 2 1 5 5 C 1.50697 * 109.54410 * 305.90046 * 4 3 2 6 6 O 1.21273 * 120.00439 * 120.65062 * 5 4 3 7 7 N 1.34784 * 120.00042 * 300.65435 * 5 4 3 8 8 C 1.47417 * 125.65112 * 174.46329 * 7 5 4 9 9 C 1.54906 * 104.83131 * 204.08921 * 8 7 5 10 10 H 1.08996 * 111.00712 * 81.06002 * 9 8 7 11 11 C 1.52999 * 111.00384 * 204.91395 * 9 8 7 12 12 N 1.46502 * 109.47095 * 287.19325 * 11 9 8 13 13 C 1.36938 * 119.99891 * 180.02562 * 12 11 9 14 14 H 1.08001 * 120.00471 * 359.97438 * 13 12 11 15 15 C 1.38817 * 119.99519 * 180.02562 * 13 12 11 16 16 N 1.31618 * 120.00203 * 359.97438 * 15 13 12 17 17 Si 1.86799 * 119.99676 * 179.97438 * 15 13 12 18 18 H 1.48499 * 109.47428 * 59.99644 * 17 15 13 19 19 H 1.48502 * 109.47059 * 179.97438 * 17 15 13 20 20 H 1.48501 * 109.47279 * 299.99956 * 17 15 13 21 21 C 1.55154 * 101.58367 * 322.98279 * 9 8 7 22 22 H 1.08996 * 110.87541 * 277.07408 * 21 9 8 23 23 C 1.53002 * 110.72440 * 153.86395 * 21 9 8 24 24 C 1.47021 * 125.64442 * 354.40890 * 7 5 4 25 25 C 1.53180 * 109.61731 * 66.12291 * 4 3 2 26 26 C 1.53088 * 109.16443 * 176.88979 * 25 4 3 27 27 O 1.42900 * 109.41570 * 302.39161 * 26 25 4 28 28 C 1.42912 * 114.09769 * 61.15865 * 27 26 25 29 29 C 1.53088 * 109.41136 * 298.83789 * 28 27 26 30 30 H 1.09005 * 109.46565 * 180.02562 * 1 2 3 31 31 H 1.09003 * 109.47291 * 299.99292 * 1 2 3 32 32 H 1.09002 * 109.47541 * 60.00177 * 1 2 3 33 33 H 1.09000 * 109.47171 * 60.00515 * 3 2 1 34 34 H 1.09002 * 109.47330 * 300.00311 * 3 2 1 35 35 H 1.09004 * 110.36374 * 322.92166 * 8 7 5 36 36 H 1.09000 * 110.36890 * 85.13606 * 8 7 5 37 37 H 1.08998 * 109.47677 * 47.19303 * 11 9 8 38 38 H 1.09004 * 109.47218 * 167.19677 * 11 9 8 39 39 H 0.97000 * 119.99947 * 359.97438 * 12 11 9 40 40 H 0.96997 * 119.99564 * 180.02562 * 16 15 13 41 41 H 1.09000 * 109.47025 * 305.03502 * 23 21 9 42 42 H 1.08994 * 109.47491 * 185.02847 * 23 21 9 43 43 H 1.09002 * 109.46628 * 65.02614 * 23 21 9 44 44 H 1.09001 * 109.88058 * 59.56831 * 24 7 5 45 45 H 1.09004 * 110.01387 * 298.47060 * 24 7 5 46 46 H 1.09000 * 109.51735 * 296.79485 * 25 4 3 47 47 H 1.09004 * 109.52143 * 56.98055 * 25 4 3 48 48 H 1.08994 * 109.48264 * 182.40330 * 26 25 4 49 49 H 1.09004 * 109.47896 * 62.37575 * 26 25 4 50 50 H 1.09001 * 109.47907 * 178.86020 * 28 27 26 51 51 H 1.08999 * 109.48244 * 58.82480 * 28 27 26 52 52 H 1.08989 * 109.53000 * 297.70373 * 29 28 27 53 53 H 1.08999 * 109.52243 * 177.51092 * 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 8 1.4290 0.0000 0.0000 3 6 2.0102 1.3055 0.0000 4 6 3.5354 1.1848 -0.0006 5 6 3.9727 0.3146 1.1494 6 8 4.6019 -0.7001 0.9370 7 7 3.6644 0.6641 2.4141 8 6 3.9262 -0.1462 3.6175 9 6 2.8906 0.3453 4.6594 10 1 1.9186 -0.1191 4.4934 11 6 3.3826 0.0879 6.0851 12 7 3.3045 -1.3456 6.3773 13 6 3.6943 -1.8168 7.6025 14 1 4.0597 -1.1318 8.3533 15 6 3.6209 -3.1752 7.8791 16 7 3.1761 -4.0100 6.9639 17 14 4.1533 -3.8181 9.5502 18 1 3.3229 -3.1908 10.6095 19 1 3.9779 -5.2921 9.5923 20 1 5.5819 -3.4825 9.7775 21 6 2.8398 1.8658 4.3548 22 1 3.6561 2.3891 4.8526 23 6 1.4897 2.4558 4.7674 24 6 3.0125 1.9171 2.8221 25 6 4.0014 0.5622 -1.3203 26 6 5.5315 0.5176 -1.3423 27 8 6.0477 1.8394 -1.1730 28 6 5.6836 2.4538 0.0649 29 6 4.1596 2.5762 0.1433 30 1 -0.3633 -1.0277 0.0005 31 1 -0.3634 0.5137 0.8901 32 1 -0.3634 0.5138 -0.8900 33 1 1.6886 1.8464 0.8900 34 1 1.6885 1.8465 -0.8900 35 1 3.7753 -1.2041 3.4026 36 1 4.9404 0.0261 3.9777 37 1 4.4158 0.4220 6.1789 38 1 2.7578 0.6368 6.7898 39 1 2.9760 -1.9608 5.7031 40 1 3.1244 -4.9591 7.1574 41 1 0.6870 1.9000 4.2828 42 1 1.4422 3.5016 4.4641 43 1 1.3782 2.3859 5.8495 44 1 2.0376 2.0011 2.3418 45 1 3.6355 2.7684 2.5475 46 1 3.6063 -0.4501 -1.4050 47 1 3.6425 1.1653 -2.1544 48 1 5.8698 0.1148 -2.2969 49 1 5.8883 -0.1185 -0.5323 50 1 6.1314 3.4458 0.1238 51 1 6.0424 1.8430 0.8933 52 1 3.8039 3.2199 -0.6611 53 1 3.8776 3.0041 1.1052 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 ZINC001106216421.mol2 53 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Wed Apr 1 2020 00:37:07 Heat of formation + Delta-G solvation = -105.947612 kcal Electronic energy + Delta-G solvation = -32493.095732 eV Core-core repulsion = 28365.539241 eV Total energy + Delta-G solvation = -4127.556492 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 1.05 seconds Orbital eigenvalues (eV) -41.29029 -39.03380 -37.92996 -37.48199 -34.86778 -34.29920 -32.86951 -31.45113 -31.20681 -29.21035 -28.41225 -26.65722 -26.29148 -25.49226 -23.90819 -23.60562 -22.84690 -21.74653 -20.82240 -20.01121 -18.95024 -17.14211 -16.93251 -16.71349 -16.37484 -16.32284 -16.08581 -15.85798 -15.17235 -14.96060 -14.61661 -14.46827 -14.18721 -14.14630 -13.73910 -13.60594 -13.30422 -13.17196 -13.00785 -12.79664 -12.64498 -12.47344 -12.17557 -12.11349 -11.93648 -11.87672 -11.63706 -11.51380 -11.26010 -11.08548 -10.86437 -10.82248 -10.64704 -10.54105 -10.43683 -10.35908 -10.02958 -9.93934 -9.71896 -9.64606 -9.34193 -8.86213 -8.48714 -6.91745 -5.74366 -3.03899 2.67941 3.00066 3.40733 3.45320 3.49580 3.50971 3.75302 4.12510 4.40156 4.44924 4.48241 4.56931 4.64210 4.67141 4.75375 4.90713 4.94598 5.00879 5.07106 5.08885 5.15252 5.19045 5.32865 5.38021 5.43364 5.44812 5.48070 5.50858 5.51247 5.56252 5.59517 5.65446 5.70620 5.77441 5.82196 5.94903 5.97940 6.02421 6.04121 6.14200 6.16755 6.29252 6.39415 6.47046 6.69758 6.82581 6.87505 7.06792 7.62381 7.70272 8.25766 8.43700 9.54891 10.11929 10.46231 11.48180 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.013625 B = 0.002995 C = 0.002910 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2054.531833 B = 9345.514913 C = 9619.508436 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 -0.380 6.380 3 C 0.065 3.935 4 C -0.073 4.073 5 C 0.547 3.453 6 O -0.529 6.529 7 N -0.614 5.614 8 C 0.117 3.883 9 C -0.099 4.099 10 H 0.085 0.915 11 C 0.166 3.834 12 N -0.732 5.732 13 C -0.243 4.243 14 H 0.069 0.931 15 C -0.012 4.012 16 N -0.931 5.931 17 Si 0.907 3.093 18 H -0.286 1.286 19 H -0.291 1.291 20 H -0.286 1.286 21 C -0.099 4.099 22 H 0.087 0.913 23 C -0.140 4.140 24 C 0.092 3.908 25 C -0.124 4.124 26 C 0.047 3.953 27 O -0.384 6.384 28 C 0.062 3.938 29 C -0.157 4.157 30 H 0.088 0.912 31 H 0.042 0.958 32 H 0.040 0.960 33 H 0.064 0.936 34 H 0.058 0.942 35 H 0.082 0.918 36 H 0.069 0.931 37 H 0.021 0.979 38 H 0.024 0.976 39 H 0.384 0.616 40 H 0.256 0.744 41 H 0.055 0.945 42 H 0.054 0.946 43 H 0.066 0.934 44 H 0.071 0.929 45 H 0.072 0.928 46 H 0.088 0.912 47 H 0.073 0.927 48 H 0.092 0.908 49 H 0.079 0.921 50 H 0.098 0.902 51 H 0.051 0.949 52 H 0.085 0.915 53 H 0.091 0.909 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -3.958 18.656 -17.123 25.630 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 -0.298 6.298 3 C -0.012 4.012 4 C -0.077 4.077 5 C 0.335 3.665 6 O -0.405 6.405 7 N -0.347 5.347 8 C -0.004 4.004 9 C -0.118 4.118 10 H 0.103 0.897 11 C 0.038 3.962 12 N -0.377 5.377 13 C -0.374 4.374 14 H 0.087 0.913 15 C -0.208 4.208 16 N -0.580 5.580 17 Si 0.738 3.262 18 H -0.213 1.213 19 H -0.217 1.217 20 H -0.213 1.213 21 C -0.118 4.118 22 H 0.106 0.894 23 C -0.197 4.197 24 C -0.030 4.030 25 C -0.162 4.162 26 C -0.029 4.029 27 O -0.303 6.303 28 C -0.015 4.015 29 C -0.195 4.195 30 H 0.107 0.893 31 H 0.060 0.940 32 H 0.058 0.942 33 H 0.081 0.919 34 H 0.077 0.923 35 H 0.100 0.900 36 H 0.087 0.913 37 H 0.038 0.962 38 H 0.041 0.959 39 H 0.218 0.782 40 H 0.066 0.934 41 H 0.074 0.926 42 H 0.073 0.927 43 H 0.085 0.915 44 H 0.089 0.911 45 H 0.089 0.911 46 H 0.107 0.893 47 H 0.091 0.909 48 H 0.110 0.890 49 H 0.097 0.903 50 H 0.116 0.884 51 H 0.069 0.931 52 H 0.103 0.897 53 H 0.109 0.891 Dipole moment (debyes) X Y Z Total from point charges -3.307 17.970 -17.297 25.160 hybrid contribution -0.415 -0.503 0.949 1.152 sum -3.722 17.466 -16.348 24.211 Atomic orbital electron populations 1.22757 0.80684 1.03180 0.99762 1.87984 1.19849 1.26689 1.95324 1.22724 0.91290 0.85938 1.01210 1.20866 0.94948 0.96236 0.95612 1.19752 0.78951 0.85676 0.82094 1.90660 1.39757 1.26479 1.83629 1.48444 1.60063 1.20085 1.06121 1.22318 0.98817 0.96448 0.82836 1.22649 0.99383 0.93625 0.96175 0.89662 1.20572 0.97227 0.87768 0.90606 1.42355 1.78587 1.01237 1.15483 1.19157 1.35797 0.91341 0.91097 0.91255 1.24744 1.02024 0.96054 0.97975 1.69652 1.52301 1.02617 1.33392 0.86277 0.78381 0.77773 0.83785 1.21303 1.21682 1.21255 1.22241 0.99245 0.97020 0.93332 0.89429 1.21747 0.95612 0.99940 1.02446 1.22595 0.97418 0.86918 0.96082 1.21975 0.97281 1.02664 0.94247 1.22890 0.92570 0.84090 1.03323 1.87889 1.74399 1.30233 1.37786 1.22513 0.93044 0.98669 0.87312 1.22516 0.97538 0.94910 1.04509 0.89331 0.93967 0.94154 0.91855 0.92342 0.89967 0.91267 0.96155 0.95866 0.78208 0.93421 0.92551 0.92725 0.91516 0.91149 0.91056 0.89311 0.90852 0.88962 0.90313 0.88436 0.93067 0.89665 0.89108 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 C 0.03 0.30 11.01 101.05 1.11 1.41 16 2 O -0.38 -4.71 9.81 -35.23 -0.35 -5.05 16 3 C 0.07 0.64 4.58 37.16 0.17 0.81 16 4 C -0.07 -0.82 0.34 -155.47 -0.05 -0.87 16 5 C 0.55 8.21 4.75 -10.98 -0.05 8.16 16 6 O -0.53 -10.03 14.13 5.56 0.08 -9.95 16 7 N -0.61 -8.59 3.31 -170.52 -0.56 -9.15 16 8 C 0.12 1.96 6.30 -2.54 -0.02 1.95 16 9 C -0.10 -1.53 2.50 -88.47 -0.22 -1.75 16 10 H 0.09 1.41 8.04 -51.93 -0.42 1.00 16 11 C 0.17 3.20 5.72 -4.04 -0.02 3.18 16 12 N -0.73 -18.42 5.55 -59.90 -0.33 -18.76 16 13 C -0.24 -6.80 9.99 -15.06 -0.15 -6.95 16 14 H 0.07 1.87 7.83 -52.49 -0.41 1.46 16 15 C -0.01 -0.34 5.50 -17.43 -0.10 -0.44 16 16 N -0.93 -28.53 13.06 55.49 0.72 -27.81 16 17 Si 0.91 22.56 29.55 -169.99 -5.02 17.54 16 18 H -0.29 -6.97 7.11 56.52 0.40 -6.56 16 19 H -0.29 -7.30 7.11 56.52 0.40 -6.90 16 20 H -0.29 -7.00 7.11 56.52 0.40 -6.60 16 21 C -0.10 -1.10 3.01 -88.78 -0.27 -1.37 16 22 H 0.09 0.93 8.04 -51.93 -0.42 0.51 16 23 C -0.14 -1.32 9.13 37.16 0.34 -0.98 16 24 C 0.09 0.95 4.95 -3.06 -0.02 0.93 16 25 C -0.12 -1.42 4.44 -26.59 -0.12 -1.54 16 26 C 0.05 0.58 6.55 37.20 0.24 0.83 16 27 O -0.38 -4.73 10.77 -35.23 -0.38 -5.11 16 28 C 0.06 0.63 6.62 37.20 0.25 0.88 16 29 C -0.16 -1.36 4.77 -26.59 -0.13 -1.49 16 30 H 0.09 0.78 8.14 -51.93 -0.42 0.36 16 31 H 0.04 0.35 8.14 -51.93 -0.42 -0.08 16 32 H 0.04 0.28 8.14 -51.93 -0.42 -0.14 16 33 H 0.06 0.55 4.77 -51.93 -0.25 0.30 16 34 H 0.06 0.45 8.14 -51.93 -0.42 0.03 16 35 H 0.08 1.64 8.09 -51.93 -0.42 1.22 16 36 H 0.07 1.20 7.91 -51.93 -0.41 0.79 16 37 H 0.02 0.40 7.97 -51.93 -0.41 -0.01 16 38 H 0.02 0.45 8.14 -51.93 -0.42 0.02 16 39 H 0.38 10.31 7.67 -40.82 -0.31 10.00 16 40 H 0.26 7.62 8.31 -40.82 -0.34 7.28 16 41 H 0.06 0.54 8.13 -51.93 -0.42 0.12 16 42 H 0.05 0.39 8.14 -51.93 -0.42 -0.03 16 43 H 0.07 0.69 8.14 -51.93 -0.42 0.26 16 44 H 0.07 0.64 4.90 -51.93 -0.25 0.39 16 45 H 0.07 0.58 5.59 -51.93 -0.29 0.29 16 46 H 0.09 1.16 7.84 -51.93 -0.41 0.75 16 47 H 0.07 0.70 8.14 -51.93 -0.42 0.28 16 48 H 0.09 0.97 8.14 -51.93 -0.42 0.55 16 49 H 0.08 1.18 5.79 -51.93 -0.30 0.88 16 50 H 0.10 0.77 8.14 -51.93 -0.42 0.35 16 51 H 0.05 0.62 7.38 -51.93 -0.38 0.23 16 52 H 0.08 0.61 8.14 -51.94 -0.42 0.18 16 53 H 0.09 0.66 4.29 -51.93 -0.22 0.44 16 LS Contribution 399.77 15.07 6.02 6.02 Total: -1.00 -34.19 399.77 -7.96 -42.15 By element: Atomic # 1 Polarization: 16.48 SS G_CDS: -9.12 Total: 7.36 kcal Atomic # 6 Polarization: 1.78 SS G_CDS: 0.97 Total: 2.75 kcal Atomic # 7 Polarization: -55.55 SS G_CDS: -0.17 Total: -55.72 kcal Atomic # 8 Polarization: -19.47 SS G_CDS: -0.65 Total: -20.11 kcal Atomic # 14 Polarization: 22.56 SS G_CDS: -5.02 Total: 17.54 kcal Total LS contribution 6.02 Total: 6.02 kcal Total: -34.19 -7.96 -42.15 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. ZINC001106216421.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 -63.797 kcal (2) G-P(sol) polarization free energy of solvation -34.188 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -97.985 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -7.962 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -42.151 kcal (6) G-S(sol) free energy of system = (1) + (5) -105.948 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.05 seconds