Wall clock time and date at job start Sat Mar 6 2021 11:52:00 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 C 2 2 O 1.42892 * 1 3 3 C 1.35997 * 117.00533 * 2 1 4 4 C 1.39150 * 120.08068 * 180.02562 * 3 2 1 5 5 O 1.35997 * 120.06802 * 359.95896 * 4 3 2 6 6 C 1.42897 * 116.99662 * 179.97438 * 5 4 3 7 7 C 1.50701 * 109.47137 * 180.02562 * 6 5 4 8 8 O 1.21286 * 120.00016 * 359.97438 * 7 6 5 9 9 N 1.34780 * 120.00113 * 179.97438 * 7 6 5 10 10 C 1.46503 * 120.00076 * 179.97438 * 9 7 6 11 11 H 1.08998 * 112.84673 * 25.33071 * 10 9 7 12 12 C 1.53773 * 113.61376 * 156.53103 * 10 9 7 13 13 C 1.53775 * 87.08170 * 89.11619 * 12 10 9 14 14 H 1.08999 * 113.61941 * 270.79995 * 13 12 10 15 15 C 1.50704 * 113.61378 * 139.98008 * 13 12 10 16 16 C 1.38210 * 119.97111 * 299.72862 * 15 13 12 17 17 C 1.38323 * 120.01502 * 179.72738 * 16 15 13 18 18 Cl 1.73605 * 120.02537 * 180.29322 * 17 16 15 19 19 C 1.38548 * 119.94957 * 0.56630 * 17 16 15 20 20 F 1.35096 * 120.03317 * 179.72766 * 19 17 16 21 21 C 1.38443 * 119.93750 * 359.70858 * 19 17 16 22 22 C 1.38200 * 119.98569 * 359.97438 * 21 19 17 23 23 C 1.53775 * 113.61431 * 254.13918 * 10 9 7 24 24 C 1.38558 * 119.85597 * 179.97438 * 4 3 2 25 25 C 1.38241 * 120.00008 * 359.75095 * 24 4 3 26 26 C 1.38259 * 120.14653 * 0.50643 * 25 24 4 27 27 C 1.50699 * 119.92736 * 179.76826 * 26 25 24 28 28 O 1.42892 * 109.47249 * 119.72467 * 27 26 25 29 29 Si 1.86298 * 109.47032 * 359.71853 * 27 26 25 30 30 C 1.38242 * 120.14200 * 359.49077 * 26 25 24 31 31 H 1.08994 * 109.47438 * 299.99969 * 1 2 3 32 32 H 1.09000 * 109.47102 * 59.99854 * 1 2 3 33 33 H 1.09004 * 109.46864 * 179.97438 * 1 2 3 34 34 H 1.09004 * 109.47389 * 300.00010 * 6 5 4 35 35 H 1.09003 * 109.47261 * 59.99666 * 6 5 4 36 36 H 0.97002 * 119.99952 * 0.02562 * 9 7 6 37 37 H 1.09001 * 113.61575 * 203.67145 * 12 10 9 38 38 H 1.09004 * 113.61613 * 334.56960 * 12 10 9 39 39 H 1.08002 * 119.99139 * 359.97338 * 16 15 13 40 40 H 1.08003 * 120.00638 * 180.02562 * 21 19 17 41 41 H 1.08007 * 119.97303 * 180.02562 * 22 21 19 42 42 H 1.09001 * 113.62046 * 25.43251 * 23 10 9 43 43 H 1.09003 * 113.61841 * 156.33439 * 23 10 9 44 44 H 1.08002 * 119.99992 * 179.97438 * 24 4 3 45 45 H 1.08000 * 119.92937 * 180.24438 * 25 24 4 46 46 H 1.09004 * 109.46453 * 239.72536 * 27 26 25 47 47 H 0.96703 * 114.00176 * 299.99748 * 28 27 26 48 48 H 1.48506 * 109.99834 * 58.68765 * 29 27 26 49 49 H 1.48502 * 110.00011 * 180.02562 * 29 27 26 50 50 H 1.08001 * 119.99712 * 180.23635 * 30 26 25 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 1.4289 0.0000 0.0000 3 6 2.0464 1.2117 0.0000 4 6 3.4359 1.2863 -0.0005 5 8 4.1795 0.1476 -0.0002 6 6 5.6002 0.3006 -0.0014 7 6 6.2518 -1.0582 -0.0015 8 8 5.5669 -2.0592 -0.0002 9 7 7.5957 -1.1612 -0.0030 10 6 8.2291 -2.4822 -0.0025 11 1 7.5929 -3.2568 -0.4308 12 6 9.6601 -2.4794 -0.5654 13 6 10.1389 -2.1905 0.8671 14 1 10.1911 -1.1278 1.1041 15 6 11.3917 -2.9370 1.2470 16 6 11.4023 -4.3191 1.2351 17 6 12.5533 -5.0052 1.5782 18 17 12.5691 -6.7410 1.5561 19 6 13.6918 -4.3061 1.9451 20 9 14.8153 -4.9746 2.2858 21 6 13.6773 -2.9218 1.9618 22 6 12.5278 -2.2389 1.6122 23 6 8.8443 -2.8699 1.3524 24 6 4.0603 2.5233 -0.0011 25 6 3.3029 3.6798 -0.0063 26 6 1.9223 3.6057 -0.0004 27 6 1.1016 4.8696 -0.0008 28 8 0.2771 4.9018 -1.1675 29 14 2.2365 6.3470 -0.0013 30 6 1.2932 2.3748 0.0001 31 1 -0.3634 0.5138 0.8899 32 1 -0.3633 0.5139 -0.8900 33 1 -0.3633 -1.0277 -0.0005 34 1 5.9059 0.8498 -0.8920 35 1 5.9072 0.8512 0.8879 36 1 8.1435 -0.3607 -0.0037 37 1 9.9815 -3.4489 -0.9461 38 1 9.8533 -1.6645 -1.2630 39 1 10.5128 -4.8634 0.9540 40 1 14.5643 -2.3758 2.2472 41 1 12.5168 -1.1590 1.6249 42 1 8.3794 -2.3701 2.2022 43 1 8.9431 -3.9460 1.4953 44 1 5.1386 2.5839 -0.0011 45 1 3.7907 4.6433 -0.0107 46 1 0.4729 4.8947 0.8893 47 1 0.7709 4.8820 -1.9987 48 1 3.1211 6.3075 -1.1935 49 1 1.4393 7.5999 -0.0011 50 1 0.2146 2.3196 0.0009 There are 74 doubly filled levels RHF calculation, no. of doubly occupied orbitals= 74 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). Cl: (AM1): M.J.S. DEWAR AND E. G. ZOEBISCH, THEOCHEM, 180, 1 (1988). 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_10156534_60476.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 11:52:00 Heat of formation + Delta-G solvation = -97.956889 kcal Electronic energy + Delta-G solvation = -36251.361714 eV Core-core repulsion = 30959.861221 eV Total energy + Delta-G solvation = -5291.500493 eV No. of doubly occupied orbitals = 74 and no. of open levels = 1 Molecular weight (most abundant/longest-lived isotopes) = 422.117 amu Computer time = 1.15 seconds Orbital eigenvalues (eV) -49.97018 -41.93702 -41.62631 -40.54452 -39.48219 -38.97218 -38.63484 -37.54313 -37.01892 -34.69499 -32.18439 -32.10670 -31.70073 -31.42454 -29.55758 -28.44719 -26.95655 -26.41197 -26.05879 -24.42268 -23.69967 -22.92343 -22.56768 -21.88226 -20.47568 -19.82416 -19.02622 -18.60639 -18.42964 -18.01286 -17.78229 -17.56893 -17.42044 -16.99645 -16.90754 -16.79347 -16.63734 -16.18215 -16.01201 -15.97061 -15.82580 -15.58814 -15.41292 -15.16446 -14.93612 -14.69205 -14.48562 -14.31677 -14.20550 -14.14911 -13.79011 -13.74470 -13.65709 -13.53676 -13.43061 -12.73589 -12.64593 -12.59935 -12.56975 -12.30919 -12.21638 -12.17077 -12.02827 -11.99597 -11.81840 -11.68465 -11.47315 -10.93706 -10.66362 -10.26764 -10.12493 -9.80796 -9.66022 -8.88372 -5.01007 -0.20466 -0.10300 0.14678 0.27162 0.94206 1.23490 1.36187 1.43634 1.54924 1.91942 2.20357 2.29714 2.46184 2.54024 2.97468 3.18441 3.30587 3.35739 3.37997 3.47353 3.50106 3.59369 3.67236 3.72190 3.76006 3.83666 3.87505 3.89412 3.90940 4.04721 4.10155 4.23182 4.27628 4.30499 4.32111 4.45026 4.50557 4.51328 4.54463 4.62949 4.63929 4.68420 4.72516 4.73632 4.82202 4.88177 4.94652 4.97391 5.07232 5.21408 5.34099 5.38938 5.52224 5.52895 5.93155 6.25550 6.35459 6.52018 7.04935 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.025 3.975 2 O -0.302 6.302 3 C 0.107 3.893 4 C 0.104 3.896 5 O -0.277 6.277 6 C 0.039 3.961 7 C 0.518 3.482 8 O -0.505 6.505 9 N -0.712 5.712 10 C 0.122 3.878 11 H 0.108 0.892 12 C -0.135 4.135 13 C -0.073 4.073 14 H 0.104 0.896 15 C -0.070 4.070 16 C -0.081 4.081 17 C -0.071 4.071 18 Cl -0.046 7.046 19 C 0.106 3.894 20 F -0.126 7.126 21 C -0.139 4.139 22 C -0.081 4.081 23 C -0.145 4.145 24 C -0.169 4.169 25 C -0.113 4.113 26 C -0.113 4.113 27 C -0.073 4.073 28 O -0.530 6.530 29 Si 0.686 3.314 30 C -0.147 4.147 31 H 0.056 0.944 32 H 0.056 0.944 33 H 0.103 0.897 34 H 0.094 0.906 35 H 0.096 0.904 36 H 0.403 0.597 37 H 0.101 0.899 38 H 0.081 0.919 39 H 0.145 0.855 40 H 0.146 0.854 41 H 0.140 0.860 42 H 0.079 0.921 43 H 0.097 0.903 44 H 0.139 0.861 45 H 0.133 0.867 46 H 0.119 0.881 47 H 0.376 0.624 48 H -0.260 1.260 49 H -0.257 1.257 50 H 0.141 0.859 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 2.763 6.254 0.606 6.864 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 -0.070 4.070 2 O -0.215 6.215 3 C 0.061 3.939 4 C 0.058 3.942 5 O -0.189 6.189 6 C -0.040 4.040 7 C 0.303 3.697 8 O -0.378 6.378 9 N -0.366 5.366 10 C 0.017 3.983 11 H 0.126 0.874 12 C -0.173 4.173 13 C -0.091 4.091 14 H 0.123 0.877 15 C -0.071 4.071 16 C -0.099 4.099 17 C -0.099 4.099 18 Cl -0.017 7.017 19 C 0.086 3.914 20 F -0.104 7.104 21 C -0.158 4.158 22 C -0.100 4.100 23 C -0.184 4.184 24 C -0.188 4.188 25 C -0.131 4.131 26 C -0.114 4.114 27 C -0.183 4.183 28 O -0.336 6.336 29 Si 0.587 3.413 30 C -0.165 4.165 31 H 0.075 0.925 32 H 0.075 0.925 33 H 0.122 0.878 34 H 0.112 0.888 35 H 0.113 0.887 36 H 0.237 0.763 37 H 0.119 0.881 38 H 0.099 0.901 39 H 0.162 0.838 40 H 0.164 0.836 41 H 0.158 0.842 42 H 0.098 0.902 43 H 0.116 0.884 44 H 0.157 0.843 45 H 0.150 0.850 46 H 0.136 0.864 47 H 0.224 0.776 48 H -0.184 1.184 49 H -0.182 1.182 50 H 0.158 0.842 Dipole moment (debyes) X Y Z Total from point charges 2.063 5.658 0.634 6.055 hybrid contribution 0.247 -0.019 -0.947 0.978 sum 2.310 5.638 -0.312 6.101 Atomic orbital electron populations 1.23133 0.78085 1.04431 1.01378 1.86247 1.21360 1.25337 1.88525 1.18282 0.89018 0.85570 1.00985 1.18275 0.88298 0.85749 1.01842 1.86280 1.15987 1.27762 1.88872 1.22468 0.81377 0.96138 1.04034 1.20034 0.82341 0.90615 0.76707 1.90810 1.62534 1.38003 1.46411 1.45469 1.05832 1.08880 1.76414 1.21844 0.93860 0.85527 0.97117 0.87384 1.23446 0.94084 1.03996 0.95773 1.21683 0.90934 0.99587 0.96898 0.87749 1.19689 0.95542 0.92589 0.99239 1.20848 0.96586 0.93791 0.98720 1.21027 0.95275 0.86366 1.07197 1.98419 1.98684 1.07589 1.96985 1.17479 0.82386 0.90223 1.01356 1.91566 1.48898 1.80469 1.89491 1.21193 1.00648 0.91417 1.02493 1.21045 0.91311 1.00685 0.96922 1.23652 0.94729 1.01919 0.98080 1.20981 1.00444 0.90658 1.06729 1.20690 0.92847 0.97898 1.01666 1.19990 0.93715 0.95094 1.02585 1.25012 1.00236 1.01801 0.91201 1.86595 1.35600 1.95709 1.15745 0.95009 0.80391 0.76409 0.89488 1.20943 1.00427 0.90398 1.04768 0.92495 0.92528 0.87848 0.88775 0.88652 0.76278 0.88075 0.90061 0.83773 0.83592 0.84249 0.90246 0.88449 0.84295 0.84995 0.86360 0.77600 1.18448 1.18223 0.84155 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 0.02 0.00 9.81 101.05 0.99 0.99 16 2 O -0.30 -1.21 10.28 -34.23 -0.35 -1.56 16 3 C 0.11 0.31 6.70 -39.12 -0.26 0.05 16 4 C 0.10 0.22 6.70 -39.12 -0.26 -0.04 16 5 O -0.28 -0.89 9.45 -47.36 -0.45 -1.34 16 6 C 0.04 -0.06 5.22 36.01 0.19 0.13 16 7 C 0.52 0.29 7.91 -10.98 -0.09 0.20 16 8 O -0.50 -3.03 16.12 -14.36 -0.23 -3.26 16 9 N -0.71 2.20 5.26 -53.02 -0.28 1.92 16 10 C 0.12 -0.30 4.30 -67.12 -0.29 -0.59 16 11 H 0.11 -0.03 7.50 -51.93 -0.39 -0.42 16 12 C -0.14 0.57 7.29 -25.93 -0.19 0.38 16 13 C -0.07 0.31 3.87 -90.82 -0.35 -0.04 16 14 H 0.10 -0.60 8.09 -51.93 -0.42 -1.02 16 15 C -0.07 0.18 5.29 -104.62 -0.55 -0.38 16 16 C -0.08 0.10 8.41 -39.56 -0.33 -0.23 16 17 C -0.07 -0.06 6.33 -39.44 -0.25 -0.31 16 18 Cl -0.05 -0.08 28.62 -51.86 -1.48 -1.56 16 19 C 0.11 0.12 7.28 -39.39 -0.29 -0.17 16 20 F -0.13 -0.35 16.84 2.25 0.04 -0.31 16 21 C -0.14 0.17 10.03 -39.52 -0.40 -0.23 16 22 C -0.08 0.22 9.70 -39.59 -0.38 -0.16 16 23 C -0.15 0.43 7.27 -25.78 -0.19 0.24 16 24 C -0.17 0.16 9.04 -39.46 -0.36 -0.20 16 25 C -0.11 0.13 8.66 -39.57 -0.34 -0.21 16 26 C -0.11 0.01 5.39 -104.61 -0.56 -0.55 16 27 C -0.07 0.05 2.82 36.01 0.10 0.16 16 28 O -0.53 -0.39 12.77 -35.23 -0.45 -0.84 16 29 Si 0.69 -1.16 29.78 -169.99 -5.06 -6.22 16 30 C -0.15 -0.16 8.60 -39.46 -0.34 -0.50 16 31 H 0.06 -0.06 7.66 -51.93 -0.40 -0.46 16 32 H 0.06 -0.05 7.66 -51.93 -0.40 -0.45 16 33 H 0.10 -0.13 8.14 -51.93 -0.42 -0.55 16 34 H 0.09 -0.41 7.67 -51.93 -0.40 -0.81 16 35 H 0.10 -0.43 7.66 -51.93 -0.40 -0.83 16 36 H 0.40 -2.60 8.70 -40.82 -0.36 -2.96 16 37 H 0.10 -0.40 7.73 -51.93 -0.40 -0.80 16 38 H 0.08 -0.40 8.14 -51.93 -0.42 -0.82 16 39 H 0.14 -0.36 6.64 -52.49 -0.35 -0.71 16 40 H 0.15 -0.42 8.06 -52.48 -0.42 -0.84 16 41 H 0.14 -0.71 8.05 -52.48 -0.42 -1.14 16 42 H 0.08 -0.17 8.14 -51.93 -0.42 -0.59 16 43 H 0.10 -0.28 6.30 -51.93 -0.33 -0.60 16 44 H 0.14 -0.58 6.30 -52.49 -0.33 -0.91 16 45 H 0.13 -0.43 4.87 -52.49 -0.26 -0.69 16 46 H 0.12 -0.17 7.96 -51.93 -0.41 -0.58 16 47 H 0.38 -0.74 8.70 45.56 0.40 -0.35 16 48 H -0.26 -0.03 7.11 56.52 0.40 0.38 16 49 H -0.26 -0.46 7.11 56.52 0.40 -0.05 16 50 H 0.14 0.03 6.30 -52.49 -0.33 -0.30 16 LS Contribution 434.21 15.07 6.54 6.54 Total: 0.00 -11.68 434.21 -11.95 -23.64 By element: Atomic # 1 Polarization: -9.44 SS G_CDS: -6.08 Total: -15.51 kcal Atomic # 6 Polarization: 2.67 SS G_CDS: -4.15 Total: -1.48 kcal Atomic # 7 Polarization: 2.20 SS G_CDS: -0.28 Total: 1.92 kcal Atomic # 8 Polarization: -5.52 SS G_CDS: -1.48 Total: -7.00 kcal Atomic # 9 Polarization: -0.35 SS G_CDS: 0.04 Total: -0.31 kcal Atomic # 14 Polarization: -1.16 SS G_CDS: -5.06 Total: -6.22 kcal Atomic # 17 Polarization: -0.08 SS G_CDS: -1.48 Total: -1.56 kcal Total LS contribution 6.54 Total: 6.54 kcal Total: -11.68 -11.95 -23.64 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_10156534_60476.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 -74.320 kcal (2) G-P(sol) polarization free energy of solvation -11.683 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -86.002 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -11.955 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -23.637 kcal (6) G-S(sol) free energy of system = (1) + (5) -97.957 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.15 seconds