Wall clock time and date at job start Sat Apr 11 2020 06:11:04 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 1.42907 * 1 3 3 C 1.42895 * 114.00217 * 2 1 4 4 C 1.53000 * 109.47127 * 179.97438 * 3 2 1 5 5 C 1.53006 * 109.47224 * 184.34528 * 4 3 2 6 6 N 1.46505 * 109.44893 * 302.54779 * 5 4 3 7 7 C 1.34773 * 120.00099 * 296.76934 * 6 5 4 8 8 O 1.21283 * 119.99977 * 5.14992 * 7 6 5 9 9 C 1.50701 * 119.99857 * 185.14855 * 7 6 5 10 10 C 1.53780 * 113.61323 * 277.49807 * 9 7 6 11 11 C 1.53786 * 87.07711 * 220.02050 * 10 9 7 12 12 O 1.42900 * 113.69031 * 139.99678 * 11 10 9 13 13 C 1.42897 * 114.00112 * 112.46228 * 12 11 10 14 14 C 1.53778 * 87.08378 * 25.43401 * 11 10 9 15 15 C 1.53035 * 109.45587 * 62.51346 * 5 4 3 16 16 C 1.53193 * 109.31258 * 181.38667 * 15 5 4 17 17 N 1.46929 * 108.77280 * 305.36481 * 16 15 5 18 18 C 1.36935 * 120.63303 * 233.58140 * 17 16 15 19 19 H 1.08001 * 119.99376 * 31.75232 * 18 17 16 20 20 C 1.38810 * 120.00396 * 212.02836 * 18 17 16 21 21 N 1.31624 * 119.99807 * 10.47621 * 20 18 17 22 22 Si 1.86804 * 119.99995 * 190.48233 * 20 18 17 23 23 H 1.48496 * 109.47161 * 89.99741 * 22 20 18 24 24 H 1.48503 * 109.46801 * 209.99550 * 22 20 18 25 25 H 1.48494 * 109.46969 * 329.99440 * 22 20 18 26 26 C 1.46924 * 118.73986 * 53.85950 * 17 16 15 27 27 C 1.53039 * 109.45960 * 182.58111 * 5 4 3 28 28 H 1.09001 * 109.47173 * 300.00582 * 1 2 3 29 29 H 1.09002 * 109.46489 * 60.00302 * 1 2 3 30 30 H 1.08999 * 109.47262 * 180.02562 * 1 2 3 31 31 H 1.09003 * 109.47430 * 59.99855 * 3 2 1 32 32 H 1.08997 * 109.47170 * 300.00055 * 3 2 1 33 33 H 1.09008 * 109.46649 * 64.35020 * 4 3 2 34 34 H 1.08991 * 109.47323 * 304.34661 * 4 3 2 35 35 H 0.96996 * 119.99409 * 116.76649 * 6 5 4 36 36 H 1.09003 * 112.84570 * 48.80473 * 9 7 6 37 37 H 1.09002 * 113.61606 * 334.56239 * 10 9 7 38 38 H 1.08998 * 113.61447 * 105.47626 * 10 9 7 39 39 H 1.09002 * 113.61281 * 270.88088 * 11 10 9 40 40 H 1.09004 * 109.46885 * 179.97438 * 13 12 11 41 41 H 1.08996 * 109.47185 * 299.99807 * 13 12 11 42 42 H 1.09004 * 109.47205 * 59.99767 * 13 12 11 43 43 H 1.09001 * 113.61110 * 220.02501 * 14 11 10 44 44 H 1.08993 * 113.61452 * 89.11301 * 14 11 10 45 45 H 1.09002 * 109.49937 * 61.43429 * 15 5 4 46 46 H 1.08999 * 109.50031 * 301.33628 * 15 5 4 47 47 H 1.09004 * 109.59015 * 185.58259 * 16 15 5 48 48 H 1.08996 * 109.58861 * 65.14933 * 16 15 5 49 49 H 0.96995 * 119.99653 * 180.02562 * 21 20 18 50 50 H 1.09008 * 109.58242 * 65.92659 * 26 17 16 51 51 H 1.08997 * 109.59190 * 186.34978 * 26 17 16 52 52 H 1.09001 * 109.49644 * 298.56705 * 27 5 4 53 53 H 1.09004 * 109.49544 * 58.63473 * 27 5 4 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 1.4291 0.0000 0.0000 3 6 2.0103 1.3054 0.0000 4 6 3.5355 1.1845 0.0006 5 6 4.1576 2.5782 0.1099 6 7 3.6843 3.4118 -0.9979 7 6 3.9861 3.0789 -2.2685 8 8 4.5686 2.0409 -2.5014 9 6 3.5997 3.9964 -3.3999 10 6 2.1420 3.8274 -3.8596 11 6 2.6598 3.9896 -5.2986 12 8 2.0321 3.1133 -6.2368 13 6 1.2092 3.7812 -7.1954 14 6 4.0148 3.4742 -4.7856 15 6 3.7482 3.2163 1.4393 16 6 4.3441 4.6246 1.5301 17 7 5.7963 4.5377 1.3243 18 6 6.6638 5.0765 2.2366 19 1 6.3995 5.1015 3.2835 20 6 7.8802 5.5957 1.8153 21 7 8.1159 5.7604 0.5308 22 14 9.1827 6.0604 3.0711 23 1 10.0564 4.8890 3.3348 24 1 10.0024 7.1804 2.5427 25 1 8.5247 6.4815 4.3340 26 6 6.3001 3.8671 0.1180 27 6 5.6822 2.4624 0.0458 28 1 -0.3633 0.5139 0.8899 29 1 -0.3632 0.5138 -0.8901 30 1 -0.3634 -1.0276 0.0005 31 1 1.6887 1.8464 0.8900 32 1 1.6887 1.8463 -0.8899 33 1 3.8629 0.7122 -0.9256 34 1 3.8516 0.5780 0.8493 35 1 3.1537 4.2034 -0.8169 36 1 3.8851 5.0330 -3.2204 37 1 1.7306 2.8395 -3.6525 38 1 1.4862 4.6363 -3.5379 39 1 2.6867 5.0248 -5.6389 40 1 0.7697 3.0474 -7.8710 41 1 0.4156 4.3215 -6.6793 42 1 1.8149 4.4842 -7.7673 43 1 4.8706 3.9981 -5.2112 44 1 4.1152 2.3899 -4.8314 45 1 4.1213 2.6095 2.2643 46 1 2.6613 3.2770 1.4943 47 1 4.1392 5.0454 2.5145 48 1 3.9034 5.2582 0.7605 49 1 8.9661 6.1229 0.2364 50 1 6.0154 4.4403 -0.7645 51 1 7.3859 3.7880 0.1702 52 1 6.0371 1.8627 0.8840 53 1 5.9718 1.9860 -0.8909 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 ZINC001151168431.mol2 53 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Sat Apr 11 2020 06:11:04 Heat of formation + Delta-G solvation = -83.984390 kcal Electronic energy + Delta-G solvation = -32203.980091 eV Core-core repulsion = 28077.375995 eV Total energy + Delta-G solvation = -4126.604095 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 1.91 seconds Orbital eigenvalues (eV) -40.62262 -39.23656 -37.75356 -37.20383 -35.71580 -34.49319 -31.98972 -31.41662 -30.07975 -28.87479 -27.37430 -26.53281 -25.79478 -25.52171 -24.68210 -23.11970 -22.12788 -21.26966 -20.31897 -19.44945 -18.64397 -17.72346 -16.88009 -16.36046 -16.18836 -15.92125 -15.77482 -15.32320 -15.03666 -14.88329 -14.68904 -14.35941 -14.08241 -13.83206 -13.55665 -13.41871 -13.12334 -12.95617 -12.64860 -12.54892 -12.38997 -12.15079 -11.89401 -11.63830 -11.51424 -11.42892 -11.19497 -11.06005 -10.99966 -10.94881 -10.83760 -10.76805 -10.71652 -10.34750 -10.24220 -9.97768 -9.71796 -9.70842 -9.61597 -9.41877 -8.98631 -8.53790 -8.46834 -6.60646 -5.77776 -3.26758 2.96693 3.37165 3.41011 3.43945 3.44592 3.78579 3.83303 4.37418 4.48360 4.49130 4.66364 4.72385 4.98914 5.07149 5.13074 5.14624 5.20476 5.25476 5.33991 5.35717 5.38395 5.41023 5.45137 5.48440 5.53827 5.56565 5.56812 5.66202 5.71724 5.81797 5.87753 6.00112 6.03534 6.16619 6.20509 6.22989 6.38295 6.44487 6.55388 6.66386 6.71641 6.83630 6.91981 7.06482 7.11936 7.22402 7.43845 7.73750 7.79986 7.95682 8.48414 8.64779 9.23042 9.84152 10.42408 11.29465 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.010151 B = 0.003647 C = 0.002867 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2757.685527 B = 7674.820529 C = 9765.438265 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 -0.393 6.393 3 C 0.067 3.933 4 C -0.128 4.128 5 C 0.195 3.805 6 N -0.711 5.711 7 C 0.531 3.469 8 O -0.534 6.534 9 C -0.138 4.138 10 C -0.138 4.138 11 C 0.060 3.940 12 O -0.375 6.375 13 C 0.029 3.971 14 C -0.111 4.111 15 C -0.141 4.141 16 C 0.147 3.853 17 N -0.591 5.591 18 C -0.254 4.254 19 H 0.063 0.937 20 C 0.005 3.995 21 N -0.903 5.903 22 Si 0.904 3.096 23 H -0.287 1.287 24 H -0.291 1.291 25 H -0.279 1.279 26 C 0.181 3.819 27 C -0.151 4.151 28 H 0.038 0.962 29 H 0.037 0.963 30 H 0.082 0.918 31 H 0.048 0.952 32 H 0.044 0.956 33 H 0.089 0.911 34 H 0.073 0.927 35 H 0.396 0.604 36 H 0.115 0.885 37 H 0.092 0.908 38 H 0.075 0.925 39 H 0.089 0.911 40 H 0.083 0.917 41 H 0.040 0.960 42 H 0.041 0.959 43 H 0.077 0.923 44 H 0.105 0.895 45 H 0.075 0.925 46 H 0.055 0.945 47 H 0.054 0.946 48 H 0.014 0.986 49 H 0.253 0.747 50 H 0.017 0.983 51 H 0.085 0.915 52 H 0.060 0.940 53 H 0.072 0.928 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -16.753 -3.551 -9.194 19.437 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 -0.312 6.312 3 C -0.009 4.009 4 C -0.167 4.167 5 C 0.109 3.891 6 N -0.362 5.362 7 C 0.317 3.683 8 O -0.411 6.411 9 C -0.160 4.160 10 C -0.176 4.176 11 C 0.003 3.997 12 O -0.293 6.293 13 C -0.067 4.067 14 C -0.149 4.149 15 C -0.180 4.180 16 C 0.020 3.980 17 N -0.313 5.313 18 C -0.384 4.384 19 H 0.081 0.919 20 C -0.193 4.193 21 N -0.547 5.547 22 Si 0.734 3.266 23 H -0.214 1.214 24 H -0.217 1.217 25 H -0.205 1.205 26 C 0.056 3.944 27 C -0.191 4.191 28 H 0.057 0.943 29 H 0.056 0.944 30 H 0.100 0.900 31 H 0.066 0.934 32 H 0.062 0.938 33 H 0.107 0.893 34 H 0.091 0.909 35 H 0.230 0.770 36 H 0.133 0.867 37 H 0.111 0.889 38 H 0.093 0.907 39 H 0.107 0.893 40 H 0.102 0.898 41 H 0.059 0.941 42 H 0.059 0.941 43 H 0.096 0.904 44 H 0.123 0.877 45 H 0.094 0.906 46 H 0.074 0.926 47 H 0.073 0.927 48 H 0.032 0.968 49 H 0.064 0.936 50 H 0.035 0.965 51 H 0.103 0.897 52 H 0.079 0.921 53 H 0.091 0.909 Dipole moment (debyes) X Y Z Total from point charges -16.011 -4.568 -9.409 19.125 hybrid contribution 0.133 1.354 0.716 1.537 sum -15.878 -3.214 -8.692 18.385 Atomic orbital electron populations 1.22685 0.81716 1.02326 0.99662 1.87886 1.19134 1.28814 1.95363 1.22596 0.94757 0.83933 0.99650 1.21993 0.92312 0.97889 1.04485 1.20187 0.95285 0.88083 0.85542 1.46073 1.55133 1.29506 1.05512 1.20046 0.78508 0.86324 0.83391 1.90625 1.41244 1.25128 1.84063 1.22513 0.98219 1.00834 0.94385 1.23412 0.94916 1.03315 0.95935 1.23740 0.94202 0.93920 0.87878 1.87985 1.63797 1.33718 1.43837 1.22781 0.93976 0.98030 0.91946 1.23086 0.95783 1.03721 0.92317 1.22414 0.99089 1.00498 0.96009 1.20861 0.86532 0.92011 0.98573 1.44036 0.99061 1.64307 1.23930 1.19162 0.98050 1.32675 0.88521 0.91919 1.25171 0.99914 0.98410 0.95847 1.69979 1.23780 1.47978 1.12942 0.86276 0.81797 0.77819 0.80742 1.21407 1.21738 1.20475 1.20769 0.99294 0.86703 0.87680 1.22657 0.92546 1.01998 1.01915 0.94334 0.94415 0.89983 0.93387 0.93810 0.89285 0.90884 0.76965 0.86653 0.88939 0.90677 0.89265 0.89843 0.94148 0.94050 0.90441 0.87690 0.90622 0.92617 0.92700 0.96826 0.93648 0.96484 0.89713 0.92132 0.90900 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 16. 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 -0.39 -5.67 10.70 -35.23 -0.38 -6.04 16 3 C 0.07 0.92 5.50 37.16 0.20 1.12 16 4 C -0.13 -2.03 4.43 -26.73 -0.12 -2.14 16 5 C 0.19 3.20 0.35 -131.78 -0.05 3.16 16 6 N -0.71 -10.60 3.27 -47.57 -0.16 -10.75 16 7 C 0.53 8.33 6.66 -10.99 -0.07 8.26 16 8 O -0.53 -10.10 12.17 5.55 0.07 -10.04 16 9 C -0.14 -1.70 4.15 -90.96 -0.38 -2.08 16 10 C -0.14 -1.42 7.46 -25.92 -0.19 -1.62 16 11 C 0.06 0.63 4.31 -25.92 -0.11 0.52 16 12 O -0.37 -4.31 10.72 -35.23 -0.38 -4.69 16 13 C 0.03 0.23 10.85 101.05 1.10 1.32 16 14 C -0.11 -1.38 7.24 -25.92 -0.19 -1.57 16 15 C -0.14 -2.24 4.69 -26.61 -0.12 -2.37 16 16 C 0.15 2.83 6.24 -3.71 -0.02 2.81 16 17 N -0.59 -14.22 2.98 -172.05 -0.51 -14.73 16 18 C -0.25 -6.83 9.58 -15.06 -0.14 -6.97 16 19 H 0.06 1.66 7.85 -52.49 -0.41 1.25 16 20 C 0.01 0.15 5.05 -17.43 -0.09 0.06 16 21 N -0.90 -25.94 11.07 55.49 0.61 -25.32 16 22 Si 0.90 21.59 29.57 -169.99 -5.03 16.56 16 23 H -0.29 -6.89 7.11 56.52 0.40 -6.49 16 24 H -0.29 -7.03 7.11 56.52 0.40 -6.62 16 25 H -0.28 -6.52 7.11 56.52 0.40 -6.11 16 26 C 0.18 4.31 5.02 -3.49 -0.02 4.29 16 27 C -0.15 -3.05 4.63 -26.39 -0.12 -3.17 16 28 H 0.04 0.35 8.14 -51.93 -0.42 -0.07 16 29 H 0.04 0.36 8.14 -51.93 -0.42 -0.07 16 30 H 0.08 0.72 8.14 -51.93 -0.42 0.29 16 31 H 0.05 0.61 6.25 -51.93 -0.32 0.28 16 32 H 0.04 0.59 7.68 -51.93 -0.40 0.19 16 33 H 0.09 1.61 6.30 -51.92 -0.33 1.28 16 34 H 0.07 1.16 8.14 -51.93 -0.42 0.73 16 35 H 0.40 5.19 7.38 -40.82 -0.30 4.89 16 36 H 0.12 1.31 8.14 -51.93 -0.42 0.89 16 37 H 0.09 1.08 8.09 -51.93 -0.42 0.66 16 38 H 0.07 0.62 8.14 -51.93 -0.42 0.20 16 39 H 0.09 0.75 7.87 -51.93 -0.41 0.34 16 40 H 0.08 0.55 8.14 -51.93 -0.42 0.13 16 41 H 0.04 0.27 8.14 -51.93 -0.42 -0.15 16 42 H 0.04 0.28 8.14 -51.93 -0.42 -0.14 16 43 H 0.08 0.90 8.14 -51.93 -0.42 0.47 16 44 H 0.10 1.53 7.43 -51.93 -0.39 1.15 16 45 H 0.08 1.27 8.14 -51.93 -0.42 0.85 16 46 H 0.06 0.74 6.33 -51.93 -0.33 0.41 16 47 H 0.05 1.05 7.93 -51.93 -0.41 0.64 16 48 H 0.01 0.26 7.00 -51.93 -0.36 -0.11 16 49 H 0.25 7.09 8.31 -40.82 -0.34 6.75 16 50 H 0.02 0.43 7.64 -51.92 -0.40 0.03 16 51 H 0.08 2.33 6.13 -51.93 -0.32 2.01 16 52 H 0.06 1.24 8.14 -51.93 -0.42 0.82 16 53 H 0.07 1.54 6.16 -51.93 -0.32 1.22 16 LS Contribution 405.01 15.07 6.10 6.10 Total: -1.00 -31.91 405.01 -8.20 -40.12 By element: Atomic # 1 Polarization: 15.05 SS G_CDS: -9.33 Total: 5.72 kcal Atomic # 6 Polarization: 2.29 SS G_CDS: 0.79 Total: 3.07 kcal Atomic # 7 Polarization: -50.75 SS G_CDS: -0.05 Total: -50.81 kcal Atomic # 8 Polarization: -20.08 SS G_CDS: -0.69 Total: -20.77 kcal Atomic # 14 Polarization: 21.59 SS G_CDS: -5.03 Total: 16.56 kcal Total LS contribution 6.10 Total: 6.10 kcal Total: -31.91 -8.20 -40.12 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. ZINC001151168431.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 -43.869 kcal (2) G-P(sol) polarization free energy of solvation -31.911 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -75.780 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.204 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -40.116 kcal (6) G-S(sol) free energy of system = (1) + (5) -83.984 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.91 seconds