Wall clock time and date at job start Tue Mar 31 2020 05:44:44 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 N 1.46896 * 1 3 3 C 1.46906 * 111.00145 * 2 1 4 4 C 1.50701 * 109.46803 * 71.78238 * 3 2 1 5 5 O 1.21281 * 120.00290 * 359.56147 * 4 3 2 6 6 N 1.34778 * 119.99587 * 179.55805 * 4 3 2 7 7 C 1.46500 * 119.99788 * 185.20195 * 6 4 3 8 8 C 1.50700 * 109.46864 * 90.00652 * 7 6 4 9 9 H 1.07993 * 120.00026 * 359.97438 * 8 7 6 10 10 C 1.37881 * 119.99947 * 180.02562 * 8 7 6 11 11 N 1.31509 * 120.00128 * 359.97438 * 10 8 7 12 12 Si 1.86799 * 119.99862 * 179.97438 * 10 8 7 13 13 H 1.48500 * 109.47244 * 59.99673 * 12 10 8 14 14 H 1.48505 * 109.46935 * 180.02562 * 12 10 8 15 15 H 1.48499 * 109.47140 * 299.99281 * 12 10 8 16 16 C 1.39921 * 120.00290 * 5.20992 * 6 4 3 17 17 C 1.38875 * 120.06584 * 293.13149 * 16 6 4 18 18 C 1.38116 * 119.92579 * 179.79141 * 17 16 6 19 19 C 1.38278 * 120.07370 * 0.48583 * 18 17 16 20 20 C 1.38288 * 120.13967 * 359.74152 * 19 18 17 21 21 C 1.38115 * 120.07047 * 0.02834 * 20 19 18 22 22 C 1.46900 * 111.00249 * 236.04615 * 2 1 3 23 23 H 1.09004 * 110.34602 * 309.58017 * 22 2 1 24 24 C 1.54510 * 110.27501 * 71.81627 * 22 2 1 25 25 C 1.54342 * 102.31835 * 145.52104 * 24 22 2 26 26 C 1.51366 * 105.17018 * 333.46743 * 25 24 22 27 27 C 1.38502 * 130.39141 * 197.14931 * 26 25 24 28 28 C 1.38106 * 120.21618 * 180.02562 * 27 26 25 29 29 C 1.38252 * 119.93223 * 359.97438 * 28 27 26 30 30 C 1.38095 * 119.93785 * 0.02562 * 29 28 27 31 31 C 1.38216 * 109.76130 * 17.17733 * 26 25 24 32 32 H 1.09001 * 109.47243 * 188.81437 * 1 2 3 33 33 H 1.08994 * 109.47152 * 308.81627 * 1 2 3 34 34 H 1.09000 * 109.47161 * 68.81536 * 1 2 3 35 35 H 1.08998 * 109.46861 * 191.78382 * 3 2 1 36 36 H 1.09000 * 109.47050 * 311.78466 * 3 2 1 37 37 H 1.08997 * 109.47060 * 210.00364 * 7 6 4 38 38 H 1.09002 * 109.47213 * 330.00071 * 7 6 4 39 39 H 0.96995 * 120.00650 * 180.02562 * 11 10 8 40 40 H 1.07996 * 120.03893 * 0.02562 * 17 16 6 41 41 H 1.08001 * 119.96506 * 180.23192 * 18 17 16 42 42 H 1.08003 * 119.93469 * 179.77120 * 19 18 17 43 43 H 1.07994 * 119.96638 * 179.97438 * 20 19 18 44 44 H 1.07992 * 120.03719 * 179.97438 * 21 20 19 45 45 H 1.09003 * 111.01730 * 27.24257 * 24 22 2 46 46 H 1.09006 * 110.86441 * 263.72545 * 24 22 2 47 47 H 1.09007 * 110.30138 * 214.55144 * 25 24 22 48 48 H 1.08988 * 110.38851 * 92.43836 * 25 24 22 49 49 H 1.08001 * 119.89097 * 0.03000 * 27 26 25 50 50 H 1.08003 * 120.02961 * 179.97438 * 28 27 26 51 51 H 1.08003 * 120.02930 * 180.02562 * 29 28 27 52 52 H 1.08004 * 119.89625 * 179.97438 * 30 29 28 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 7 1.4690 0.0000 0.0000 3 6 1.9955 1.3715 0.0000 4 6 1.7608 1.9996 1.3496 5 8 1.2022 1.3698 2.2227 6 7 2.1718 3.2611 1.5864 7 6 2.0471 3.8321 2.9297 8 6 3.3003 3.5448 3.7159 9 1 4.1085 2.9918 3.2606 10 6 3.4146 3.9870 5.0169 11 7 2.4302 4.6600 5.5715 12 14 4.9676 3.6302 5.9916 13 1 6.1349 4.2368 5.3025 14 1 4.8409 4.2081 7.3537 15 1 5.1615 2.1615 6.0937 16 6 2.7173 4.0255 0.5491 17 6 3.9367 3.6683 -0.0113 18 6 4.4705 4.4224 -1.0380 19 6 3.7970 5.5378 -1.5011 20 6 2.5849 5.8988 -0.9419 21 6 2.0434 5.1462 0.0818 22 6 1.9955 -0.7660 -1.1376 23 1 1.5234 -1.7473 -1.1847 24 6 1.7651 0.0065 -2.4557 25 6 3.0165 -0.3661 -3.2787 26 6 4.0842 -0.6843 -2.2540 27 6 5.4601 -0.7695 -2.3883 28 6 6.2470 -1.0798 -1.2966 29 6 5.6605 -1.3056 -0.0653 30 6 4.2888 -1.2211 0.0706 31 6 3.4978 -0.9107 -1.0231 32 1 -0.3634 -1.0155 0.1575 33 1 -0.3633 0.6441 0.8007 34 1 -0.3633 0.3714 -0.9582 35 1 3.0648 1.3501 -0.2099 36 1 1.4864 1.9561 -0.7663 37 1 1.9046 4.9101 2.8545 38 1 1.1905 3.3869 3.4358 39 1 2.5107 4.9715 6.4865 40 1 4.4652 2.7996 0.3526 41 1 5.4170 4.1430 -1.4768 42 1 4.2183 6.1280 -2.3015 43 1 2.0615 6.7707 -1.3054 44 1 1.0970 5.4289 0.5184 45 1 1.7245 1.0810 -2.2772 46 1 0.8579 -0.3365 -2.9533 47 1 3.3260 0.4756 -3.8984 48 1 2.8164 -1.2389 -3.9000 49 1 5.9190 -0.5927 -3.3498 50 1 7.3196 -1.1458 -1.4048 51 1 6.2745 -1.5479 0.7896 52 1 3.8313 -1.3981 1.0328 RHF calculation, no. of doubly occupied orbitals= 68 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 ZINC000029810335.mol2 52 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Tue Mar 31 2020 05:44:44 Heat of formation + Delta-G solvation = 40.940416 kcal Electronic energy + Delta-G solvation = -33970.023481 eV Core-core repulsion = 29899.693171 eV Total energy + Delta-G solvation = -4070.330310 eV No. of doubly occupied orbitals = 68 Molecular weight (most abundant/longest-lived isotopes) = 364.189 amu Computer time = 2.76 seconds Orbital eigenvalues (eV) -40.68795 -39.74062 -38.21186 -37.00412 -34.85942 -34.14773 -32.67251 -31.08397 -30.72849 -29.42434 -28.97952 -28.61126 -27.06235 -26.62185 -23.82769 -22.89019 -22.60275 -22.32915 -21.97541 -20.92776 -19.97827 -18.88150 -17.27731 -16.65167 -16.48249 -16.17213 -15.58446 -15.48415 -15.13954 -15.09695 -14.99173 -14.50798 -14.43398 -14.16581 -13.94684 -13.67132 -13.38950 -13.14302 -13.07138 -12.83860 -12.66943 -12.59559 -12.34229 -12.25841 -11.99903 -11.85725 -11.52675 -11.44423 -11.41567 -11.19996 -11.11855 -10.99713 -10.85817 -10.80694 -10.64924 -10.59545 -10.15811 -9.72341 -9.25000 -8.76887 -8.68136 -8.61399 -8.56462 -8.42162 -8.07344 -7.62246 -6.04265 -4.08570 1.33860 1.43406 1.58113 1.65312 3.31807 3.33620 3.37003 3.41887 3.56802 3.77942 4.03279 4.14536 4.40128 4.43679 4.47596 4.80861 4.98862 5.01371 5.05496 5.11079 5.17398 5.17955 5.18692 5.30937 5.32891 5.36882 5.47012 5.49672 5.50208 5.59946 5.65807 5.68384 5.71935 5.76874 5.81337 5.83282 5.96304 6.02067 6.06517 6.15615 6.19694 6.27022 6.45592 6.57454 6.60734 6.65624 6.73736 6.81962 6.93034 7.01013 7.10701 7.17307 7.21227 7.39095 7.51866 7.91616 8.20625 8.39100 8.88189 9.04444 9.55879 11.04047 Molecular weight = 364.19amu Principal moments of inertia in cm(-1) A = 0.008165 B = 0.003860 C = 0.003549 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 3428.558723 B = 7252.763236 C = 7888.673888 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.024 3.976 2 N -0.512 5.512 3 C 0.037 3.963 4 C 0.517 3.483 5 O -0.510 6.510 6 N -0.565 5.565 7 C 0.249 3.751 8 C -0.525 4.525 9 H 0.057 0.943 10 C 0.064 3.936 11 N -0.895 5.895 12 Si 0.897 3.103 13 H -0.277 1.277 14 H -0.286 1.286 15 H -0.276 1.276 16 C 0.166 3.834 17 C -0.125 4.125 18 C -0.108 4.108 19 C -0.136 4.136 20 C -0.109 4.109 21 C -0.127 4.127 22 C 0.124 3.876 23 H 0.099 0.901 24 C -0.159 4.159 25 C -0.076 4.076 26 C -0.098 4.098 27 C -0.113 4.113 28 C -0.118 4.118 29 C -0.124 4.124 30 C -0.082 4.082 31 C -0.088 4.088 32 H 0.067 0.933 33 H 0.082 0.918 34 H 0.021 0.979 35 H 0.102 0.898 36 H 0.058 0.942 37 H 0.033 0.967 38 H 0.048 0.952 39 H 0.264 0.736 40 H 0.121 0.879 41 H 0.119 0.881 42 H 0.117 0.883 43 H 0.120 0.880 44 H 0.123 0.877 45 H 0.079 0.921 46 H 0.076 0.924 47 H 0.073 0.927 48 H 0.078 0.922 49 H 0.116 0.884 50 H 0.120 0.880 51 H 0.123 0.877 52 H 0.127 0.873 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 1.961 -6.909 -21.121 22.309 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 -0.123 4.123 2 N -0.234 5.234 3 C -0.094 4.094 4 C 0.303 3.697 5 O -0.384 6.384 6 N -0.294 5.294 7 C 0.132 3.868 8 C -0.564 4.564 9 H 0.075 0.925 10 C -0.139 4.139 11 N -0.534 5.534 12 Si 0.725 3.275 13 H -0.202 1.202 14 H -0.211 1.211 15 H -0.201 1.201 16 C 0.074 3.926 17 C -0.145 4.145 18 C -0.127 4.127 19 C -0.154 4.154 20 C -0.128 4.128 21 C -0.147 4.147 22 C 0.016 3.984 23 H 0.117 0.883 24 C -0.198 4.198 25 C -0.113 4.113 26 C -0.099 4.099 27 C -0.132 4.132 28 C -0.136 4.136 29 C -0.142 4.142 30 C -0.100 4.100 31 C -0.088 4.088 32 H 0.086 0.914 33 H 0.101 0.899 34 H 0.040 0.960 35 H 0.120 0.880 36 H 0.076 0.924 37 H 0.051 0.949 38 H 0.066 0.934 39 H 0.074 0.926 40 H 0.139 0.861 41 H 0.137 0.863 42 H 0.135 0.865 43 H 0.138 0.862 44 H 0.141 0.859 45 H 0.097 0.903 46 H 0.095 0.905 47 H 0.092 0.908 48 H 0.097 0.903 49 H 0.134 0.866 50 H 0.138 0.862 51 H 0.141 0.859 52 H 0.145 0.855 Dipole moment (debyes) X Y Z Total from point charges 1.692 -7.418 -19.944 21.346 hybrid contribution 0.834 0.403 0.010 0.926 sum 2.526 -7.016 -19.934 21.283 Atomic orbital electron populations 1.22451 0.86471 1.02956 1.00450 1.61704 1.08427 1.12436 1.40794 1.22120 1.02216 0.89547 0.95522 1.20222 0.79118 0.81042 0.89273 1.90659 1.40755 1.60427 1.46564 1.45983 1.60077 1.12608 1.10726 1.19399 0.98518 0.93733 0.75173 1.21327 1.01666 1.35716 0.97643 0.92494 1.24891 0.96710 0.94963 0.97296 1.69911 1.31660 1.37390 1.14396 0.86567 0.83206 0.78769 0.78985 1.20222 1.21131 1.20098 1.17759 0.92260 0.93058 0.89564 1.21365 0.94392 1.01218 0.97488 1.20954 0.99577 0.95350 0.96817 1.21038 0.95894 0.97598 1.00919 1.20953 0.96051 0.99268 0.96521 1.21296 1.00354 0.95930 0.97087 1.21334 0.91424 0.97700 0.87966 0.88314 1.23073 0.98111 1.01763 0.96823 1.20940 0.92530 1.01466 0.96388 1.20538 0.93781 1.00043 0.95526 1.20525 0.92230 1.01625 0.98770 1.21026 0.99515 1.00139 0.92910 1.21112 0.94752 1.00746 0.97541 1.20775 0.93022 0.97588 0.98591 1.20369 0.94724 1.00103 0.93628 0.91388 0.89912 0.96022 0.88015 0.92419 0.94859 0.93371 0.92640 0.86067 0.86270 0.86464 0.86161 0.85853 0.90251 0.90508 0.90807 0.90324 0.86577 0.86153 0.85934 0.85472 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 0.34 9.15 60.06 0.55 0.89 16 2 N -0.51 -7.69 4.35 -236.37 -1.03 -8.71 16 3 C 0.04 0.60 2.96 -4.97 -0.01 0.59 16 4 C 0.52 10.95 7.24 -10.98 -0.08 10.88 16 5 O -0.51 -12.67 14.40 5.56 0.08 -12.59 16 6 N -0.56 -12.34 2.51 -114.74 -0.29 -12.63 16 7 C 0.25 6.60 5.14 -5.19 -0.03 6.58 16 8 C -0.52 -15.06 9.39 -34.44 -0.32 -15.38 16 9 H 0.06 1.64 7.81 -52.49 -0.41 1.23 16 10 C 0.06 1.83 5.46 -17.82 -0.10 1.74 16 11 N -0.89 -26.73 13.29 55.43 0.74 -25.99 16 12 Si 0.90 22.18 29.54 -169.99 -5.02 17.16 16 13 H -0.28 -6.68 7.11 56.52 0.40 -6.28 16 14 H -0.29 -6.92 7.11 56.52 0.40 -6.52 16 15 H -0.28 -6.81 7.11 56.52 0.40 -6.41 16 16 C 0.17 3.07 4.57 -83.69 -0.38 2.68 16 17 C -0.12 -2.07 8.32 -39.39 -0.33 -2.40 16 18 C -0.11 -1.47 10.04 -39.61 -0.40 -1.87 16 19 C -0.14 -1.70 10.04 -39.55 -0.40 -2.10 16 20 C -0.11 -1.46 10.04 -39.61 -0.40 -1.85 16 21 C -0.13 -2.07 9.64 -39.39 -0.38 -2.45 16 22 C 0.12 1.51 2.94 -67.74 -0.20 1.31 16 23 H 0.10 1.11 8.11 -51.93 -0.42 0.68 16 24 C -0.16 -1.58 5.61 -25.24 -0.14 -1.72 16 25 C -0.08 -0.69 6.77 -26.85 -0.18 -0.87 16 26 C -0.10 -1.12 6.14 -104.21 -0.64 -1.75 16 27 C -0.11 -1.21 10.04 -39.53 -0.40 -1.61 16 28 C -0.12 -1.28 10.05 -39.62 -0.40 -1.68 16 29 C -0.12 -1.52 10.05 -39.63 -0.40 -1.92 16 30 C -0.08 -1.13 10.00 -39.54 -0.40 -1.53 16 31 C -0.09 -1.13 4.30 -104.21 -0.45 -1.58 16 32 H 0.07 0.83 8.14 -51.93 -0.42 0.41 16 33 H 0.08 1.37 6.32 -51.93 -0.33 1.04 16 34 H 0.02 0.25 7.42 -51.93 -0.39 -0.13 16 35 H 0.10 1.67 5.15 -51.93 -0.27 1.40 16 36 H 0.06 0.87 6.43 -51.93 -0.33 0.53 16 37 H 0.03 0.90 7.82 -51.93 -0.41 0.50 16 38 H 0.05 1.42 7.36 -51.93 -0.38 1.03 16 39 H 0.26 7.47 8.31 -40.82 -0.34 7.13 16 40 H 0.12 2.09 7.44 -52.49 -0.39 1.70 16 41 H 0.12 1.34 8.06 -52.49 -0.42 0.91 16 42 H 0.12 1.13 8.06 -52.48 -0.42 0.71 16 43 H 0.12 1.28 8.06 -52.49 -0.42 0.86 16 44 H 0.12 1.98 8.06 -52.49 -0.42 1.56 16 45 H 0.08 0.87 5.65 -51.93 -0.29 0.58 16 46 H 0.08 0.64 8.14 -51.93 -0.42 0.22 16 47 H 0.07 0.61 8.14 -51.93 -0.42 0.19 16 48 H 0.08 0.61 8.14 -51.94 -0.42 0.19 16 49 H 0.12 0.99 8.06 -52.49 -0.42 0.56 16 50 H 0.12 1.04 8.06 -52.48 -0.42 0.62 16 51 H 0.12 1.34 8.06 -52.48 -0.42 0.92 16 52 H 0.13 1.91 8.06 -52.48 -0.42 1.49 16 LS Contribution 418.13 15.07 6.30 6.30 Total: -1.00 -32.88 418.13 -12.52 -45.40 By element: Atomic # 1 Polarization: 12.95 SS G_CDS: -7.83 Total: 5.13 kcal Atomic # 6 Polarization: -8.58 SS G_CDS: -5.47 Total: -14.06 kcal Atomic # 7 Polarization: -46.76 SS G_CDS: -0.58 Total: -47.34 kcal Atomic # 8 Polarization: -12.67 SS G_CDS: 0.08 Total: -12.59 kcal Atomic # 14 Polarization: 22.18 SS G_CDS: -5.02 Total: 17.16 kcal Total LS contribution 6.30 Total: 6.30 kcal Total: -32.88 -12.52 -45.40 kcal The number of atoms in the molecule is 52 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. ZINC000029810335.mol2 52 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 86.340 kcal (2) G-P(sol) polarization free energy of solvation -32.879 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 53.461 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -12.520 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -45.399 kcal (6) G-S(sol) free energy of system = (1) + (5) 40.940 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 2.76 seconds