Wall clock time and date at job start Wed Apr 1 2020 00:28:38 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 1.42902 * 1 3 3 C 1.42895 * 114.00049 * 2 1 4 4 C 1.52998 * 109.47396 * 180.02562 * 3 2 1 5 5 C 1.50700 * 109.54194 * 293.97720 * 4 3 2 6 6 O 1.21287 * 119.99920 * 121.26342 * 5 4 3 7 7 N 1.34783 * 120.00448 * 301.27083 * 5 4 3 8 8 C 1.46923 * 120.62785 * 355.11558 * 7 5 4 9 9 C 1.53199 * 108.89027 * 126.46184 * 8 7 5 10 10 C 1.53039 * 109.31089 * 54.56867 * 9 8 7 11 11 H 1.08999 * 109.46380 * 58.64943 * 10 9 8 12 12 N 1.46498 * 109.46092 * 178.62852 * 10 9 8 13 13 C 1.36938 * 119.99441 * 274.99964 * 12 10 9 14 14 H 1.08001 * 120.00459 * 359.97438 * 13 12 10 15 15 C 1.38814 * 119.99762 * 180.02562 * 13 12 10 16 16 N 1.31619 * 120.00130 * 359.97438 * 15 13 12 17 17 Si 1.86800 * 120.00147 * 179.97438 * 15 13 12 18 18 H 1.48496 * 109.46986 * 359.97438 * 17 15 13 19 19 H 1.48501 * 109.47399 * 119.99553 * 17 15 13 20 20 H 1.48497 * 109.47199 * 239.99412 * 17 15 13 21 21 C 1.53046 * 109.53499 * 298.63434 * 10 9 8 22 22 H 1.09005 * 109.49648 * 301.41159 * 21 10 9 23 23 C 1.53005 * 109.49417 * 181.35165 * 21 10 9 24 24 C 1.46955 * 120.65655 * 174.93820 * 7 5 4 25 25 C 1.53169 * 109.54330 * 54.15839 * 4 3 2 26 26 C 1.53288 * 109.06174 * 176.85451 * 25 4 3 27 27 O 1.42896 * 109.45974 * 302.44208 * 26 25 4 28 28 C 1.42906 * 114.09756 * 61.16305 * 27 26 25 29 29 C 1.53094 * 109.41121 * 298.83830 * 28 27 26 30 30 H 1.08998 * 109.46690 * 179.97438 * 1 2 3 31 31 H 1.08993 * 109.46955 * 299.99583 * 1 2 3 32 32 H 1.08993 * 109.47166 * 60.00369 * 1 2 3 33 33 H 1.09002 * 109.47151 * 59.99846 * 3 2 1 34 34 H 1.09001 * 109.47647 * 300.00469 * 3 2 1 35 35 H 1.09005 * 109.58702 * 6.60892 * 8 7 5 36 36 H 1.08990 * 109.59313 * 246.32421 * 8 7 5 37 37 H 1.09000 * 109.49676 * 174.51653 * 9 8 7 38 38 H 1.08992 * 109.49723 * 294.58046 * 9 8 7 39 39 H 0.96990 * 120.00077 * 94.99523 * 12 10 9 40 40 H 0.96994 * 120.00297 * 180.02562 * 16 15 13 41 41 H 1.08996 * 109.47256 * 59.99803 * 23 21 10 42 42 H 1.09007 * 109.46808 * 179.97438 * 23 21 10 43 43 H 1.08997 * 109.46656 * 299.99474 * 23 21 10 44 44 H 1.08994 * 109.46921 * 113.74806 * 24 7 5 45 45 H 1.09007 * 109.71071 * 353.46471 * 24 7 5 46 46 H 1.09005 * 109.52415 * 296.83796 * 25 4 3 47 47 H 1.08990 * 109.52734 * 57.03505 * 25 4 3 48 48 H 1.08996 * 109.45556 * 182.44716 * 26 25 4 49 49 H 1.09000 * 109.46440 * 62.44931 * 26 25 4 50 50 H 1.09000 * 109.48126 * 178.86086 * 28 27 26 51 51 H 1.08998 * 109.49294 * 58.82865 * 28 27 26 52 52 H 1.09000 * 109.52458 * 297.70252 * 29 28 27 53 53 H 1.08997 * 109.52008 * 177.51698 * 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 1.3054 0.0000 4 6 3.5354 1.1847 -0.0006 5 6 3.9929 0.5693 1.2967 6 8 4.6300 -0.4627 1.2869 7 7 3.6940 1.1657 2.4679 8 6 3.0166 2.4691 2.4927 9 6 1.7668 2.3619 3.3721 10 6 2.1632 1.8334 4.7526 11 1 2.8936 2.5056 5.2028 12 7 0.9753 1.7605 5.6069 13 6 0.5583 2.8683 6.2955 14 1 1.1053 3.7955 6.2092 15 6 -0.5670 2.7992 7.1054 16 7 -1.2334 1.6691 7.2111 17 14 -1.1355 4.3100 8.0454 18 1 -0.2212 5.4445 7.7585 19 1 -2.5141 4.6658 7.6235 20 1 -1.1227 4.0207 9.5019 21 6 2.7747 0.4377 4.6100 22 1 2.0534 -0.2289 4.1372 23 6 3.1397 -0.1036 5.9937 24 6 4.0358 0.5231 3.7446 25 6 3.9790 0.3019 -1.1711 26 6 5.5107 0.2524 -1.2084 27 8 6.0272 1.5798 -1.3233 28 6 5.6822 2.4365 -0.2328 29 6 4.1595 2.5749 -0.1564 30 1 -0.3633 -1.0277 -0.0005 31 1 -0.3633 0.5137 0.8900 32 1 -0.3633 0.5137 -0.8900 33 1 1.6886 1.8463 0.8900 34 1 1.6886 1.8464 -0.8899 35 1 2.7277 2.7501 1.4799 36 1 3.6887 3.2226 2.9032 37 1 1.3101 3.3461 3.4768 38 1 1.0549 1.6777 2.9107 39 1 0.4842 0.9278 5.6846 40 1 -2.0199 1.6209 7.7767 41 1 2.2423 -0.1616 6.6096 42 1 3.5748 -1.0979 5.8917 43 1 3.8618 0.5627 6.4656 44 1 4.7923 1.1160 4.2586 45 1 4.4209 -0.4798 3.5599 46 1 3.5832 -0.7051 -1.0384 47 1 3.6057 0.7209 -2.1054 48 1 5.8340 -0.3389 -2.0651 49 1 5.8818 -0.2040 -0.2908 50 1 6.1292 3.4187 -0.3867 51 1 6.0555 2.0090 0.6978 52 1 3.7896 3.0398 -1.0703 53 1 3.8924 3.1922 0.7013 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 ZINC001319689158.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 00:28:38 Heat of formation + Delta-G solvation = -99.980131 kcal Electronic energy + Delta-G solvation = -33170.841543 eV Core-core repulsion = 29043.543821 eV Total energy + Delta-G solvation = -4127.297722 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 1.12 seconds Orbital eigenvalues (eV) -41.43313 -38.83804 -37.81651 -37.42191 -35.07064 -34.22840 -32.72903 -31.53666 -31.16744 -29.40273 -28.42193 -26.75696 -25.88762 -25.31991 -23.90814 -23.32267 -22.70579 -21.74490 -21.42780 -19.71542 -18.69651 -17.14466 -16.97710 -16.70926 -16.42676 -16.09904 -15.86779 -15.53102 -15.26296 -14.92510 -14.71228 -14.40805 -14.12156 -14.00327 -13.74042 -13.69167 -13.38935 -13.07025 -12.72753 -12.58351 -12.42144 -12.28391 -12.10226 -11.93953 -11.72986 -11.63579 -11.54986 -11.29085 -11.18021 -10.99794 -10.89330 -10.79209 -10.67445 -10.49224 -10.42926 -10.21032 -9.89677 -9.82144 -9.66252 -9.53179 -9.28897 -8.94995 -8.47183 -7.01946 -5.82989 -3.11851 2.65408 3.04753 3.37596 3.43465 3.45813 3.49380 3.77643 4.19185 4.50003 4.52757 4.56936 4.71219 4.79442 4.92350 5.05487 5.09394 5.13644 5.19955 5.23188 5.27500 5.29372 5.36458 5.36883 5.44899 5.47093 5.48952 5.52844 5.59125 5.65227 5.65836 5.68734 5.74941 5.82806 5.93130 6.00792 6.04133 6.07916 6.12343 6.23623 6.34801 6.39067 6.50679 6.59440 6.75271 6.88729 6.98766 6.99952 7.08691 7.50888 7.63628 8.24133 8.35091 9.46760 10.04095 10.38999 11.39456 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.016176 B = 0.003281 C = 0.003172 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1730.513201 B = 8532.076993 C = 8825.405409 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.031 3.969 2 O -0.382 6.382 3 C 0.056 3.944 4 C -0.075 4.075 5 C 0.534 3.466 6 O -0.540 6.540 7 N -0.602 5.602 8 C 0.084 3.916 9 C -0.153 4.153 10 C 0.186 3.814 11 H 0.048 0.952 12 N -0.720 5.720 13 C -0.239 4.239 14 H 0.070 0.930 15 C -0.012 4.012 16 N -0.931 5.931 17 Si 0.904 3.096 18 H -0.281 1.281 19 H -0.292 1.292 20 H -0.292 1.292 21 C -0.109 4.109 22 H 0.069 0.931 23 C -0.136 4.136 24 C 0.121 3.879 25 C -0.120 4.120 26 C 0.048 3.952 27 O -0.385 6.385 28 C 0.063 3.937 29 C -0.162 4.162 30 H 0.086 0.914 31 H 0.047 0.953 32 H 0.039 0.961 33 H 0.075 0.925 34 H 0.058 0.942 35 H 0.094 0.906 36 H 0.069 0.931 37 H 0.076 0.924 38 H 0.059 0.941 39 H 0.384 0.616 40 H 0.255 0.745 41 H 0.073 0.927 42 H 0.043 0.957 43 H 0.050 0.950 44 H 0.064 0.936 45 H 0.087 0.913 46 H 0.089 0.911 47 H 0.072 0.928 48 H 0.090 0.910 49 H 0.078 0.922 50 H 0.097 0.903 51 H 0.050 0.950 52 H 0.086 0.914 53 H 0.096 0.904 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 10.005 0.342 -16.705 19.475 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 -0.065 4.065 2 O -0.301 6.301 3 C -0.020 4.020 4 C -0.078 4.078 5 C 0.321 3.679 6 O -0.417 6.417 7 N -0.334 5.334 8 C -0.038 4.038 9 C -0.194 4.194 10 C 0.075 3.925 11 H 0.066 0.934 12 N -0.360 5.360 13 C -0.370 4.370 14 H 0.088 0.912 15 C -0.208 4.208 16 N -0.579 5.579 17 Si 0.735 3.265 18 H -0.206 1.206 19 H -0.219 1.219 20 H -0.219 1.219 21 C -0.129 4.129 22 H 0.087 0.913 23 C -0.193 4.193 24 C -0.001 4.001 25 C -0.158 4.158 26 C -0.028 4.028 27 O -0.304 6.304 28 C -0.014 4.014 29 C -0.200 4.200 30 H 0.105 0.895 31 H 0.066 0.934 32 H 0.058 0.942 33 H 0.092 0.908 34 H 0.076 0.924 35 H 0.111 0.889 36 H 0.087 0.913 37 H 0.094 0.906 38 H 0.078 0.922 39 H 0.218 0.782 40 H 0.064 0.936 41 H 0.092 0.908 42 H 0.062 0.938 43 H 0.069 0.931 44 H 0.083 0.917 45 H 0.106 0.894 46 H 0.107 0.893 47 H 0.091 0.909 48 H 0.108 0.892 49 H 0.096 0.904 50 H 0.116 0.884 51 H 0.068 0.932 52 H 0.104 0.896 53 H 0.114 0.886 Dipole moment (debyes) X Y Z Total from point charges 10.536 -0.148 -16.747 19.786 hybrid contribution -1.294 0.819 0.838 1.746 sum 9.242 0.671 -15.909 18.410 Atomic orbital electron populations 1.22767 0.80539 1.03015 1.00210 1.87907 1.19948 1.26778 1.95424 1.22949 0.91105 0.86082 1.01887 1.20848 0.95058 0.97222 0.94710 1.20155 0.78919 0.84141 0.84642 1.90601 1.40205 1.24096 1.86834 1.48063 1.58628 1.20953 1.05784 1.22457 0.95430 0.84366 1.01571 1.22734 0.95619 1.02755 0.98330 1.20165 0.90063 0.92961 0.89304 0.93424 1.42415 1.29002 1.12325 1.52297 1.19255 1.07506 0.90564 1.19653 0.91199 1.24724 0.98383 0.96965 1.00710 1.69665 1.20603 1.24577 1.43085 0.86168 0.78295 0.82283 0.79725 1.20593 1.21941 1.21895 1.21730 0.96371 0.98911 0.95900 0.91273 1.21655 1.02493 0.99097 0.96103 1.21692 0.96945 0.98878 0.82603 1.21935 0.96954 1.01092 0.95860 1.22925 0.92783 0.83580 1.03555 1.87885 1.75108 1.22655 1.44747 1.22500 0.93210 0.95139 0.90503 1.22681 0.97580 0.94990 1.04701 0.89503 0.93445 0.94191 0.90761 0.92421 0.88886 0.91285 0.90573 0.92223 0.78215 0.93550 0.90772 0.93826 0.93076 0.91747 0.89447 0.89253 0.90946 0.89161 0.90402 0.88444 0.93159 0.89571 0.88634 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 0.03 0.34 11.01 101.05 1.11 1.45 16 2 O -0.38 -5.07 9.64 -35.23 -0.34 -5.41 16 3 C 0.06 0.64 4.46 37.16 0.17 0.80 16 4 C -0.08 -0.87 0.34 -155.48 -0.05 -0.92 16 5 C 0.53 7.65 4.96 -10.98 -0.05 7.59 16 6 O -0.54 -9.23 13.25 5.55 0.07 -9.15 16 7 N -0.60 -8.25 2.98 -172.75 -0.51 -8.77 16 8 C 0.08 1.03 4.09 -3.71 -0.02 1.02 16 9 C -0.15 -2.40 5.33 -26.61 -0.14 -2.54 16 10 C 0.19 3.37 2.19 -67.89 -0.15 3.22 16 11 H 0.05 0.89 8.08 -51.93 -0.42 0.47 16 12 N -0.72 -16.75 4.41 -53.38 -0.24 -16.99 16 13 C -0.24 -6.21 9.93 -15.06 -0.15 -6.36 16 14 H 0.07 1.77 7.83 -52.49 -0.41 1.36 16 15 C -0.01 -0.32 5.50 -17.43 -0.10 -0.42 16 16 N -0.93 -27.11 13.06 55.49 0.72 -26.39 16 17 Si 0.90 21.57 29.55 -169.99 -5.02 16.55 16 18 H -0.28 -6.46 7.11 56.52 0.40 -6.06 16 19 H -0.29 -7.05 7.11 56.52 0.40 -6.65 16 20 H -0.29 -7.07 7.11 56.52 0.40 -6.67 16 21 C -0.11 -1.77 2.46 -90.50 -0.22 -2.00 16 22 H 0.07 1.23 8.14 -51.93 -0.42 0.81 16 23 C -0.14 -2.19 9.03 37.16 0.34 -1.86 16 24 C 0.12 1.76 5.70 -3.70 -0.02 1.74 16 25 C -0.12 -1.40 4.32 -26.49 -0.11 -1.52 16 26 C 0.05 0.57 6.56 37.31 0.24 0.81 16 27 O -0.39 -4.67 10.77 -35.23 -0.38 -5.05 16 28 C 0.06 0.65 6.62 37.21 0.25 0.89 16 29 C -0.16 -1.51 4.57 -26.59 -0.12 -1.63 16 30 H 0.09 0.86 8.14 -51.93 -0.42 0.44 16 31 H 0.05 0.54 8.14 -51.93 -0.42 0.12 16 32 H 0.04 0.36 8.14 -51.93 -0.42 -0.07 16 33 H 0.07 0.86 4.00 -51.93 -0.21 0.65 16 34 H 0.06 0.54 8.14 -51.93 -0.42 0.11 16 35 H 0.09 0.96 2.62 -51.93 -0.14 0.82 16 36 H 0.07 0.76 8.14 -51.93 -0.42 0.34 16 37 H 0.08 1.25 8.14 -51.93 -0.42 0.83 16 38 H 0.06 1.00 7.55 -51.93 -0.39 0.61 16 39 H 0.38 9.73 7.50 -40.82 -0.31 9.42 16 40 H 0.25 7.22 8.31 -40.82 -0.34 6.88 16 41 H 0.07 1.40 7.36 -51.93 -0.38 1.02 16 42 H 0.04 0.62 8.14 -51.92 -0.42 0.20 16 43 H 0.05 0.79 8.14 -51.93 -0.42 0.37 16 44 H 0.06 0.86 8.14 -51.93 -0.42 0.44 16 45 H 0.09 1.34 7.05 -51.93 -0.37 0.98 16 46 H 0.09 1.18 7.56 -51.93 -0.39 0.79 16 47 H 0.07 0.74 8.14 -51.93 -0.42 0.32 16 48 H 0.09 0.92 8.14 -51.93 -0.42 0.50 16 49 H 0.08 1.09 5.77 -51.93 -0.30 0.79 16 50 H 0.10 0.78 8.14 -51.93 -0.42 0.36 16 51 H 0.05 0.58 7.38 -51.93 -0.38 0.19 16 52 H 0.09 0.69 8.14 -51.93 -0.42 0.27 16 53 H 0.10 0.79 4.67 -51.93 -0.24 0.55 16 LS Contribution 391.69 15.07 5.90 5.90 Total: -1.00 -31.01 391.69 -7.82 -38.83 By element: Atomic # 1 Polarization: 19.18 SS G_CDS: -8.99 Total: 10.19 kcal Atomic # 6 Polarization: -0.68 SS G_CDS: 0.97 Total: 0.28 kcal Atomic # 7 Polarization: -52.12 SS G_CDS: -0.02 Total: -52.14 kcal Atomic # 8 Polarization: -18.97 SS G_CDS: -0.65 Total: -19.61 kcal Atomic # 14 Polarization: 21.57 SS G_CDS: -5.02 Total: 16.55 kcal Total LS contribution 5.90 Total: 5.90 kcal Total: -31.01 -7.82 -38.83 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. ZINC001319689158.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 -61.150 kcal (2) G-P(sol) polarization free energy of solvation -31.013 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -92.163 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -7.817 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -38.830 kcal (6) G-S(sol) free energy of system = (1) + (5) -99.980 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.12 seconds