Wall clock time and date at job start Thu Mar 4 2021 12:31:45 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 * SM5.42R - SM5.42R CALCULATIONS WILL BE PERFORMED * - CHARGE MODEL 2 WILL BE USED (CM2A) * - THE SOLVENT IS WATER ******************************************************************************* 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 1.50700 * 1 3 3 C 1.36772 * 125.79947 * 2 1 4 4 C 1.47263 * 126.94179 * 359.93963 * 3 2 1 5 5 O 1.21623 * 120.00126 * 0.02562 * 4 3 2 6 6 N 1.34777 * 119.99630 * 179.97438 * 4 3 2 7 7 C 1.46499 * 119.99665 * 179.72408 * 6 4 3 8 8 C 1.53004 * 109.47198 * 180.27868 * 7 6 4 9 9 C 1.52997 * 109.47000 * 179.97438 * 8 7 6 10 10 H 1.08993 * 112.85228 * 43.80845 * 9 8 7 11 11 C 1.53789 * 113.61178 * 174.99973 * 9 8 7 12 12 C 1.53778 * 87.08158 * 139.98580 * 11 9 8 13 13 H 1.08994 * 113.61926 * 89.11545 * 12 11 9 14 14 N 1.46501 * 113.61177 * 219.93554 * 12 11 9 15 15 C 1.34775 * 120.00162 * 204.99375 * 14 12 11 16 16 O 1.21510 * 119.99538 * 0.02562 * 15 14 12 17 17 O 1.34632 * 120.00277 * 179.97438 * 15 14 12 18 18 C 1.45198 * 117.00211 * 180.02562 * 17 15 14 19 19 C 1.53009 * 109.46934 * 60.00395 * 18 17 15 20 20 C 1.53003 * 109.47538 * 180.02562 * 18 17 15 21 21 C 1.53006 * 109.47425 * 300.00558 * 18 17 15 22 22 C 1.53781 * 113.61633 * 272.49443 * 9 8 7 23 23 C 1.46685 * 106.11271 * 180.20138 * 3 2 1 24 24 C 1.34488 * 106.33458 * 359.62616 * 23 3 2 25 25 C 1.50702 * 125.57258 * 180.15692 * 24 23 3 26 26 O 1.42894 * 109.47246 * 245.25117 * 25 24 23 27 27 Si 1.86305 * 109.46902 * 5.25493 * 25 24 23 28 28 N 1.34655 * 125.80149 * 179.97438 * 2 1 3 29 29 H 1.08999 * 109.46994 * 90.00091 * 1 2 3 30 30 H 1.09000 * 109.47145 * 210.00260 * 1 2 3 31 31 H 1.09002 * 109.47381 * 330.00165 * 1 2 3 32 32 H 0.97001 * 120.00485 * 0.02562 * 6 4 3 33 33 H 1.09009 * 109.47454 * 300.27637 * 7 6 4 34 34 H 1.08998 * 109.47492 * 60.27932 * 7 6 4 35 35 H 1.08995 * 109.46638 * 300.00121 * 8 7 6 36 36 H 1.09006 * 109.47139 * 60.00254 * 8 7 6 37 37 H 1.09008 * 113.61475 * 254.53362 * 11 9 8 38 38 H 1.08997 * 113.61324 * 25.34711 * 11 9 8 39 39 H 0.97001 * 120.00370 * 25.00249 * 14 12 11 40 40 H 1.09000 * 109.47322 * 59.99734 * 19 18 17 41 41 H 1.08995 * 109.47179 * 180.02562 * 19 18 17 42 42 H 1.09006 * 109.46576 * 299.99951 * 19 18 17 43 43 H 1.08998 * 109.46542 * 60.00253 * 20 18 17 44 44 H 1.08995 * 109.47181 * 180.02562 * 20 18 17 45 45 H 1.09000 * 109.46866 * 300.00357 * 20 18 17 46 46 H 1.08995 * 109.46959 * 59.99419 * 21 18 17 47 47 H 1.08997 * 109.46841 * 179.97438 * 21 18 17 48 48 H 1.08994 * 109.46470 * 299.99561 * 21 18 17 49 49 H 1.08991 * 113.61326 * 334.57278 * 22 9 8 50 50 H 1.08998 * 113.61046 * 105.47513 * 22 9 8 51 51 H 1.08007 * 126.83136 * 179.74662 * 23 3 2 52 52 H 1.09001 * 109.46386 * 125.24838 * 25 24 23 53 53 H 0.96696 * 114.00014 * 179.97438 * 26 25 24 54 54 H 1.48497 * 109.99740 * 178.67667 * 27 25 24 55 55 H 1.48498 * 109.99946 * 299.99427 * 27 25 24 56 56 H 0.97001 * 124.85503 * 0.03995 * 28 2 1 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 1.5070 0.0000 0.0000 3 6 2.3070 1.1093 0.0000 4 6 1.8701 2.5156 -0.0012 5 8 0.6839 2.7839 -0.0019 6 7 2.7849 3.5054 -0.0005 7 6 2.3503 4.9044 -0.0079 8 6 3.5766 5.8195 -0.0124 9 6 3.1226 7.2805 -0.0207 10 1 2.3046 7.4735 0.6731 11 6 4.2804 8.2859 0.0970 12 6 3.5361 9.1445 -0.9391 13 1 2.8304 9.8479 -0.4974 14 7 4.4195 9.7696 -1.9266 15 6 4.0361 10.8987 -2.5548 16 8 2.9579 11.3985 -2.3016 17 8 4.8482 11.4734 -3.4619 18 6 4.3705 12.6878 -4.0985 19 6 4.1213 13.7578 -3.0336 20 6 5.4207 13.1904 -5.0912 21 6 3.0658 12.3947 -4.8420 22 6 2.8819 7.8428 -1.4317 23 6 3.6882 0.6152 -0.0050 24 6 3.6095 -0.7274 0.0009 25 6 4.7820 -1.6742 0.0022 26 8 4.7954 -2.4175 -1.2181 27 14 6.3644 -0.7029 0.1553 28 7 2.2947 -1.0921 0.0005 29 1 -0.3633 0.0000 -1.0277 30 1 -0.3633 -0.8900 0.5139 31 1 -0.3634 0.8900 0.5138 32 1 3.7310 3.2915 0.0004 33 1 1.7519 5.0944 -0.8990 34 1 1.7517 5.1037 0.8809 35 1 4.1748 5.6295 0.8786 36 1 4.1752 5.6203 -0.9014 37 1 4.3547 8.7533 1.0790 38 1 5.2341 7.8973 -0.2600 39 1 5.2804 9.3707 -2.1286 40 1 5.0508 13.9667 -2.5039 41 1 3.7623 14.6693 -3.5114 42 1 3.3729 13.3995 -2.3268 43 1 5.5978 12.4280 -5.8498 44 1 5.0623 14.1022 -5.5688 45 1 6.3504 13.3991 -4.5619 46 1 2.3174 12.0364 -4.1352 47 1 2.7070 13.3064 -5.3195 48 1 3.2433 11.6325 -5.6006 49 1 3.4530 7.3336 -2.2079 50 1 1.8272 7.9525 -1.6838 51 1 4.5890 1.2110 -0.0101 52 1 4.6938 -2.3603 0.8447 53 1 5.5253 -3.0480 -1.2866 54 1 7.5262 -1.6271 0.1899 55 1 6.4964 0.2363 -0.9873 56 1 1.9734 -2.0074 0.0003 There are 72 doubly filled levels RHF calculation, no. of doubly occupied orbitals= 72 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) 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=0 AM1 1SCF TLIMIT=15 GEO-OK SM5.42R & SOLVNT=WATER m_22_16659234_9865296.mol2 56 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Thu Mar 4 2021 12:31:45 Heat of formation + Delta-G solvation = -96.034758 kcal Electronic energy + Delta-G solvation = -34324.779144 eV Core-core repulsion = 29622.518033 eV Total energy + Delta-G solvation = -4702.261111 eV No. of doubly occupied orbitals = 72 and no. of open levels = 1 Molecular weight (most abundant/longest-lived isotopes) = 380.219 amu Computer time = 1.63 seconds Orbital eigenvalues (eV) -42.43910 -41.88875 -40.52211 -39.97481 -38.01884 -37.84959 -36.23287 -35.35528 -34.25851 -32.99977 -32.48279 -31.03061 -29.06058 -28.38828 -28.31789 -26.71165 -26.40481 -25.21344 -24.00058 -22.78418 -22.14978 -21.42259 -21.37253 -20.67145 -20.24910 -19.09485 -18.63320 -18.39204 -17.72859 -17.19660 -17.04535 -16.87576 -16.65841 -16.42077 -16.16866 -15.96556 -15.62029 -15.50269 -15.34592 -15.15790 -14.72762 -14.56504 -14.51606 -14.42279 -13.87420 -13.81908 -13.73199 -13.58571 -13.47639 -13.36101 -13.35833 -13.15725 -12.99677 -12.92927 -12.88218 -12.79182 -12.58373 -12.43909 -12.35905 -12.25578 -11.95834 -11.80104 -11.55303 -11.40632 -11.18391 -11.10396 -10.89081 -10.59804 -10.14072 -10.11143 -9.81212 -9.17187 -4.85094 0.70483 1.13517 1.19206 1.30185 1.66782 1.73799 1.96954 2.14993 2.51410 2.54372 3.17146 3.28375 3.54028 3.55229 3.72808 3.76930 3.77577 3.86310 3.87554 3.90142 3.92861 4.03231 4.16380 4.22339 4.34732 4.38796 4.40393 4.50471 4.53977 4.59200 4.66425 4.66882 4.71262 4.73094 4.74422 4.79635 4.81652 4.84794 4.85944 4.92076 4.97345 5.01401 5.04151 5.08151 5.14453 5.18915 5.25111 5.27841 5.30206 5.36575 5.57073 5.57675 5.63353 5.67548 5.87718 6.42180 6.43238 6.54508 6.69529 7.35074 7.37786 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.094 4.094 2 C 0.109 3.891 3 C -0.259 4.259 4 C 0.585 3.415 5 O -0.589 6.589 6 N -0.716 5.716 7 C 0.122 3.878 8 C -0.107 4.107 9 C -0.097 4.097 10 H 0.097 0.903 11 C -0.123 4.123 12 C 0.129 3.871 13 H 0.098 0.902 14 N -0.689 5.689 15 C 0.641 3.359 16 O -0.597 6.597 17 O -0.370 6.370 18 C 0.127 3.873 19 C -0.180 4.180 20 C -0.137 4.137 21 C -0.180 4.180 22 C -0.150 4.150 23 C -0.158 4.158 24 C 0.024 3.976 25 C -0.067 4.067 26 O -0.564 6.564 27 Si 0.791 3.209 28 N -0.531 5.531 29 H 0.078 0.922 30 H 0.088 0.912 31 H 0.084 0.916 32 H 0.413 0.587 33 H 0.050 0.950 34 H 0.058 0.942 35 H 0.092 0.908 36 H 0.082 0.918 37 H 0.085 0.915 38 H 0.108 0.892 39 H 0.417 0.583 40 H 0.063 0.937 41 H 0.086 0.914 42 H 0.062 0.938 43 H 0.069 0.931 44 H 0.098 0.902 45 H 0.070 0.930 46 H 0.062 0.938 47 H 0.086 0.914 48 H 0.061 0.939 49 H 0.093 0.907 50 H 0.058 0.942 51 H 0.171 0.829 52 H 0.097 0.903 53 H 0.398 0.602 54 H -0.283 1.283 55 H -0.290 1.290 56 H 0.427 0.573 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 7.787 -3.546 2.978 9.060 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 -0.151 4.151 2 C -0.011 4.011 3 C -0.269 4.269 4 C 0.375 3.625 5 O -0.472 6.472 6 N -0.368 5.368 7 C -0.002 4.002 8 C -0.145 4.145 9 C -0.116 4.116 10 H 0.116 0.884 11 C -0.161 4.161 12 C 0.025 3.975 13 H 0.117 0.883 14 N -0.348 5.348 15 C 0.395 3.605 16 O -0.488 6.488 17 O -0.285 6.285 18 C 0.090 3.910 19 C -0.237 4.237 20 C -0.194 4.194 21 C -0.237 4.237 22 C -0.189 4.189 23 C -0.182 4.182 24 C -0.086 4.086 25 C -0.175 4.175 26 O -0.374 6.374 27 Si 0.693 3.307 28 N -0.127 5.127 29 H 0.096 0.904 30 H 0.107 0.893 31 H 0.102 0.898 32 H 0.250 0.750 33 H 0.068 0.932 34 H 0.076 0.924 35 H 0.111 0.889 36 H 0.101 0.899 37 H 0.104 0.896 38 H 0.127 0.873 39 H 0.255 0.745 40 H 0.082 0.918 41 H 0.105 0.895 42 H 0.081 0.919 43 H 0.088 0.912 44 H 0.117 0.883 45 H 0.089 0.911 46 H 0.081 0.919 47 H 0.105 0.895 48 H 0.080 0.920 49 H 0.112 0.888 50 H 0.077 0.923 51 H 0.188 0.812 52 H 0.115 0.885 53 H 0.250 0.750 54 H -0.210 1.210 55 H -0.217 1.217 56 H 0.266 0.734 Dipole moment (debyes) X Y Z Total from point charges 6.687 -2.611 2.572 7.626 hybrid contribution 0.130 -1.651 -0.998 1.933 sum 6.817 -4.261 1.574 8.192 Atomic orbital electron populations 1.20571 0.86297 1.04584 1.03671 1.20613 0.94352 0.85833 1.00344 1.20107 0.93860 0.91809 1.21088 1.17571 0.85054 0.84941 0.74914 1.90729 1.18284 1.85035 1.53112 1.45682 1.10166 1.05761 1.75165 1.21352 0.97944 0.79594 1.01308 1.21680 0.96192 0.92163 1.04416 1.22197 0.99012 0.93653 0.96759 0.88432 1.23386 0.98682 0.95067 0.98950 1.22663 0.93095 0.92760 0.88941 0.88346 1.44817 1.23330 1.24169 1.42443 1.18484 0.82124 0.81439 0.78500 1.90899 1.24123 1.65557 1.68253 1.86308 1.47654 1.42041 1.52455 1.22349 0.95585 0.80508 0.92527 1.22470 1.02823 0.98927 0.99453 1.21887 0.97757 1.02247 0.97524 1.22471 0.97091 1.03481 1.00683 1.23635 1.01170 0.96004 0.98097 1.21968 0.96028 0.92748 1.07425 1.19873 0.84083 0.94154 1.10463 1.24795 1.04613 0.98695 0.89396 1.86544 1.54739 1.57350 1.38817 0.93573 0.70687 0.79495 0.86896 1.41586 1.05432 1.08973 1.56720 0.90372 0.89328 0.89757 0.75030 0.93186 0.92354 0.88914 0.89910 0.89629 0.87323 0.74541 0.91833 0.89495 0.91886 0.91221 0.88346 0.91077 0.91933 0.89475 0.92033 0.88829 0.92322 0.81167 0.88470 0.75034 1.21013 1.21663 0.73388 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 -0.09 -0.26 9.88 71.24 0.70 0.44 16 2 C 0.11 0.49 7.17 41.78 0.30 0.79 16 3 C -0.26 -1.53 6.29 -19.04 -0.12 -1.65 16 4 C 0.59 4.97 7.81 86.62 0.68 5.65 16 5 O -0.59 -9.26 14.81 -4.10 -0.06 -9.32 16 6 N -0.72 -0.80 5.55 -466.51 -2.59 -3.39 16 7 C 0.12 -0.01 5.66 86.38 0.49 0.48 16 8 C -0.11 0.76 5.17 30.59 0.16 0.92 16 9 C -0.10 0.55 3.65 -10.27 -0.04 0.51 16 10 H 0.10 -0.46 8.13 -2.39 -0.02 -0.48 16 11 C -0.12 0.86 7.39 31.12 0.23 1.09 16 12 C 0.13 -0.12 4.24 45.52 0.19 0.08 16 13 H 0.10 0.35 7.46 -2.39 -0.02 0.34 16 14 N -0.69 -0.49 5.36 -567.61 -3.04 -3.53 16 15 C 0.64 4.94 8.06 129.79 1.05 5.99 16 16 O -0.60 -8.08 11.48 19.81 0.23 -7.85 16 17 O -0.37 -2.34 9.94 -55.42 -0.55 -2.89 16 18 C 0.13 0.49 1.13 -10.79 -0.01 0.48 16 19 C -0.18 -0.74 8.37 71.99 0.60 -0.13 16 20 C -0.14 0.20 8.85 71.98 0.64 0.83 16 21 C -0.18 -0.82 8.37 71.98 0.60 -0.22 16 22 C -0.15 0.30 7.43 31.12 0.23 0.53 16 23 C -0.16 -0.14 9.03 23.62 0.21 0.08 16 24 C 0.02 0.01 6.51 40.98 0.27 0.28 16 25 C -0.07 0.27 3.07 71.24 0.22 0.49 16 26 O -0.56 0.61 12.86 -148.98 -1.92 -1.31 16 27 Si 0.79 -4.75 30.58 68.60 2.10 -2.65 16 28 N -0.53 -0.32 5.90 -171.07 -1.01 -1.33 16 29 H 0.08 0.22 8.14 -2.39 -0.02 0.20 16 30 H 0.09 -0.22 8.14 -2.39 -0.02 -0.24 16 31 H 0.08 0.61 6.47 -2.39 -0.02 0.60 16 32 H 0.41 -2.00 7.60 -92.71 -0.70 -2.70 16 33 H 0.05 0.19 8.14 -2.38 -0.02 0.17 16 34 H 0.06 0.13 8.14 -2.39 -0.02 0.11 16 35 H 0.09 -0.90 8.14 -2.39 -0.02 -0.92 16 36 H 0.08 -0.70 7.84 -2.38 -0.02 -0.72 16 37 H 0.09 -0.63 8.14 -2.38 -0.02 -0.65 16 38 H 0.11 -1.12 8.08 -2.39 -0.02 -1.14 16 39 H 0.42 -1.83 8.84 -92.71 -0.82 -2.65 16 40 H 0.06 0.20 8.14 -2.39 -0.02 0.18 16 41 H 0.09 0.05 8.14 -2.39 -0.02 0.03 16 42 H 0.06 0.61 5.88 -2.38 -0.01 0.59 16 43 H 0.07 -0.11 8.14 -2.39 -0.02 -0.13 16 44 H 0.10 -0.46 8.14 -2.39 -0.02 -0.48 16 45 H 0.07 -0.13 8.14 -2.39 -0.02 -0.15 16 46 H 0.06 0.64 5.88 -2.39 -0.01 0.62 16 47 H 0.09 0.09 8.14 -2.39 -0.02 0.07 16 48 H 0.06 0.24 8.14 -2.39 -0.02 0.22 16 49 H 0.09 -0.29 7.89 -2.39 -0.02 -0.31 16 50 H 0.06 0.10 8.14 -2.39 -0.02 0.08 16 51 H 0.17 -0.85 5.88 -2.91 -0.02 -0.87 16 52 H 0.10 -0.81 7.96 -2.39 -0.02 -0.83 16 53 H 0.40 -3.62 8.74 -74.06 -0.65 -4.27 16 54 H -0.28 0.55 7.11 99.48 0.71 1.26 16 55 H -0.29 -0.20 7.11 99.48 0.71 0.50 16 56 H 0.43 -1.71 8.96 -92.71 -0.83 -2.54 16 Total: 0.00 -27.27 448.39 -2.48 -29.75 By element: Atomic # 1 Polarization: -12.07 SS G_CDS: -2.03 Total: -14.11 kcal Atomic # 6 Polarization: 10.24 SS G_CDS: 6.40 Total: 16.64 kcal Atomic # 7 Polarization: -1.61 SS G_CDS: -6.64 Total: -8.26 kcal Atomic # 8 Polarization: -19.07 SS G_CDS: -2.30 Total: -21.37 kcal Atomic # 14 Polarization: -4.75 SS G_CDS: 2.10 Total: -2.65 kcal Total: -27.27 -2.48 -29.75 kcal The number of atoms in the molecule is 56 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. m_22_16659234_9865296.mol2 56 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 -66.284 kcal (2) G-P(sol) polarization free energy of solvation -27.272 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -93.555 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -2.480 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -29.751 kcal (6) G-S(sol) free energy of system = (1) + (5) -96.035 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.63 seconds