Wall clock time and date at job start Tue Mar 31 2020 23:53:00 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= -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 1.45201 * 1 3 3 C 1.34219 * 117.00299 * 2 1 4 4 O 1.20825 * 120.00311 * 359.97438 * 3 2 1 5 5 C 1.50704 * 119.99964 * 180.02562 * 3 2 1 6 6 C 1.53004 * 109.47131 * 180.02562 * 5 3 2 7 7 N 1.46499 * 109.47173 * 180.02562 * 6 5 3 8 8 C 1.36943 * 119.99374 * 263.87411 * 7 6 5 9 9 H 1.08005 * 119.99720 * 148.00807 * 8 7 6 10 10 C 1.38813 * 120.00382 * 328.00500 * 8 7 6 11 11 N 1.31623 * 119.99450 * 336.44875 * 10 8 7 12 12 Si 1.86796 * 120.00108 * 156.44725 * 10 8 7 13 13 H 1.48503 * 109.47045 * 0.02562 * 12 10 8 14 14 H 1.48500 * 109.46771 * 120.00159 * 12 10 8 15 15 H 1.48490 * 109.47327 * 240.00156 * 12 10 8 16 16 C 1.46494 * 120.00353 * 83.87520 * 7 6 5 17 17 H 1.09001 * 109.47482 * 359.97438 * 16 7 6 18 18 C 1.53007 * 109.46765 * 240.00015 * 16 7 6 19 19 C 1.50701 * 109.47468 * 120.00049 * 16 7 6 20 20 O 1.21278 * 119.99520 * 13.25496 * 19 16 7 21 21 N 1.34774 * 120.00044 * 193.25251 * 19 16 7 22 22 C 1.46928 * 120.63189 * 355.44407 * 21 19 16 23 23 C 1.53195 * 108.77403 * 126.41212 * 22 21 19 24 24 H 1.08999 * 109.49815 * 294.68391 * 23 22 21 25 25 C 1.52999 * 109.49412 * 174.61958 * 23 22 21 26 26 C 1.53042 * 109.33866 * 54.65224 * 23 22 21 27 27 C 1.53107 * 109.49971 * 298.65113 * 26 23 22 28 28 H 1.09004 * 109.48170 * 181.30147 * 27 26 23 29 29 C 1.53002 * 109.51487 * 301.36581 * 27 26 23 30 30 C 1.46926 * 120.63007 * 175.46378 * 21 19 16 31 31 H 1.08996 * 109.47423 * 180.02562 * 1 2 3 32 32 H 1.09008 * 109.46656 * 299.99846 * 1 2 3 33 33 H 1.08991 * 109.47408 * 59.99347 * 1 2 3 34 34 H 1.08993 * 109.47686 * 59.99781 * 5 3 2 35 35 H 1.09000 * 109.47015 * 299.99400 * 5 3 2 36 36 H 1.08997 * 109.47524 * 59.99582 * 6 5 3 37 37 H 1.09000 * 109.46576 * 299.99539 * 6 5 3 38 38 H 0.96996 * 119.99618 * 179.97438 * 11 10 8 39 39 H 1.08994 * 109.47494 * 60.06031 * 18 16 7 40 40 H 1.09002 * 109.46668 * 180.02562 * 18 16 7 41 41 H 1.08992 * 109.47427 * 300.05484 * 18 16 7 42 42 H 1.08998 * 109.58430 * 6.62467 * 22 21 19 43 43 H 1.08993 * 109.70469 * 246.26912 * 22 21 19 44 44 H 1.09000 * 109.47245 * 60.06400 * 25 23 22 45 45 H 1.09006 * 109.46870 * 180.02562 * 25 23 22 46 46 H 1.09000 * 109.47016 * 300.06077 * 25 23 22 47 47 H 1.08994 * 109.46279 * 58.63601 * 26 23 22 48 48 H 1.08999 * 109.45644 * 178.59462 * 26 23 22 49 49 H 1.09004 * 109.46956 * 187.15087 * 29 27 26 50 50 H 1.08994 * 109.47163 * 307.15259 * 29 27 26 51 51 H 1.09001 * 109.46855 * 67.15794 * 29 27 26 52 52 H 1.09002 * 109.58607 * 353.37760 * 30 21 19 53 53 H 1.09002 * 109.58693 * 113.65307 * 30 21 19 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 1.4520 0.0000 0.0000 3 6 2.0614 1.1959 0.0000 4 8 1.4035 2.2093 -0.0005 5 6 3.5664 1.2747 -0.0006 6 6 4.0003 2.7419 0.0002 7 7 5.4633 2.8185 -0.0010 8 6 6.1413 2.9797 1.1778 9 1 7.1225 2.5452 1.3002 10 6 5.5677 3.7017 2.2154 11 7 4.6381 4.5975 1.9585 12 14 6.1149 3.4020 3.9761 13 1 7.1653 2.3525 3.9961 14 1 6.6617 4.6599 4.5453 15 1 4.9533 2.9559 4.7864 16 6 6.2008 2.7226 -1.2631 17 1 5.4975 2.5975 -2.0864 18 6 7.1447 1.5194 -1.2120 19 6 7.0024 3.9813 -1.4735 20 8 7.1574 4.7615 -0.5580 21 7 7.5470 4.2398 -2.6789 22 6 7.4531 3.2589 -3.7687 23 6 6.8555 3.9462 -5.0005 24 1 5.8282 4.2429 -4.7891 25 6 6.8740 2.9778 -6.1848 26 6 7.6853 5.1862 -5.3415 27 6 7.6399 6.1698 -4.1691 28 1 8.2119 7.0627 -4.4213 29 6 6.1877 6.5575 -3.8831 30 6 8.2464 5.5077 -2.9279 31 1 -0.3634 -1.0276 0.0005 32 1 -0.3633 0.5139 0.8901 33 1 -0.3634 0.5139 -0.8898 34 1 3.9558 0.7807 -0.8907 35 1 3.9564 0.7804 0.8892 36 1 3.6110 3.2355 0.8906 37 1 3.6103 3.2365 -0.8894 38 1 4.2370 5.1017 2.6835 39 1 6.5649 0.6089 -1.0609 40 1 7.6938 1.4484 -2.1509 41 1 7.8474 1.6436 -0.3881 42 1 6.8102 2.4335 -3.4629 43 1 8.4463 2.8792 -4.0080 44 1 6.2839 2.0944 -5.9411 45 1 6.4491 3.4674 -7.0612 46 1 7.9015 2.6816 -6.3959 47 1 8.7179 4.8919 -5.5286 48 1 7.2766 5.6627 -6.2325 49 1 6.1639 7.3509 -3.1360 50 1 5.7179 6.9090 -4.8016 51 1 5.6469 5.6887 -3.5077 52 1 8.1270 6.1660 -2.0674 53 1 9.3059 5.3139 -3.0953 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 ZINC000879475444.mol2 53 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 23:53:00 Heat of formation + Delta-G solvation = -101.629328 kcal Electronic energy + Delta-G solvation = -32383.357556 eV Core-core repulsion = 28255.988319 eV Total energy + Delta-G solvation = -4127.369237 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 1.74 seconds Orbital eigenvalues (eV) -40.02130 -39.89285 -37.63514 -36.24157 -35.45535 -33.42681 -33.08879 -31.72944 -31.33239 -28.69622 -27.26470 -26.76567 -26.63602 -25.45067 -24.59834 -23.12714 -21.77744 -21.06263 -19.97126 -19.17297 -18.25952 -17.36579 -16.66322 -16.18031 -16.01062 -15.93502 -15.35895 -15.09116 -14.80640 -14.48183 -14.01111 -13.96754 -13.71437 -13.57403 -13.32237 -13.14199 -13.02230 -12.81689 -12.42973 -12.16847 -12.14148 -12.03510 -11.95185 -11.60182 -11.55960 -11.49665 -11.30435 -11.24046 -10.97566 -10.88710 -10.76368 -10.60735 -10.57699 -10.49774 -10.33610 -10.15008 -10.11052 -9.95935 -9.87167 -9.66676 -8.57477 -8.36829 -7.97883 -6.65344 -5.68312 -3.16996 2.74316 3.14404 3.43359 3.52853 3.54302 3.61091 3.69440 4.56258 4.68013 4.81202 4.84178 5.07906 5.17630 5.26328 5.26994 5.32427 5.37904 5.43320 5.46072 5.50420 5.53771 5.55303 5.67266 5.69670 5.75506 5.78052 5.83745 5.86485 5.92269 5.97310 6.02233 6.04097 6.06243 6.11356 6.19713 6.23051 6.31185 6.33341 6.37177 6.43326 6.51903 6.56894 6.77762 6.87703 7.00919 7.13079 7.75342 7.92837 8.13239 8.25540 8.53774 9.18706 9.29650 9.85678 10.36109 11.35902 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.009087 B = 0.004322 C = 0.003345 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 3080.492555 B = 6476.950979 C = 8367.494273 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.035 3.965 2 O -0.370 6.370 3 C 0.460 3.540 4 O -0.506 6.506 5 C -0.131 4.131 6 C 0.158 3.842 7 N -0.556 5.556 8 C -0.238 4.238 9 H 0.066 0.934 10 C 0.015 3.985 11 N -0.876 5.876 12 Si 0.893 3.107 13 H -0.277 1.277 14 H -0.291 1.291 15 H -0.290 1.290 16 C 0.150 3.850 17 H 0.068 0.932 18 C -0.155 4.155 19 C 0.490 3.510 20 O -0.482 6.482 21 N -0.628 5.628 22 C 0.116 3.884 23 C -0.113 4.113 24 H 0.078 0.922 25 C -0.144 4.144 26 C -0.105 4.105 27 C -0.105 4.105 28 H 0.073 0.927 29 C -0.143 4.143 30 C 0.117 3.883 31 H 0.093 0.907 32 H 0.059 0.941 33 H 0.058 0.942 34 H 0.085 0.915 35 H 0.103 0.897 36 H 0.116 0.884 37 H 0.029 0.971 38 H 0.252 0.748 39 H 0.059 0.941 40 H 0.046 0.954 41 H 0.062 0.938 42 H 0.087 0.913 43 H 0.058 0.942 44 H 0.056 0.944 45 H 0.054 0.946 46 H 0.054 0.946 47 H 0.060 0.940 48 H 0.059 0.941 49 H 0.053 0.947 50 H 0.048 0.952 51 H 0.061 0.939 52 H 0.088 0.912 53 H 0.053 0.947 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 1.374 -6.353 -15.303 16.626 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 -0.059 4.059 2 O -0.287 6.287 3 C 0.303 3.697 4 O -0.392 6.392 5 C -0.171 4.171 6 C 0.031 3.969 7 N -0.274 5.274 8 C -0.367 4.367 9 H 0.084 0.916 10 C -0.186 4.186 11 N -0.518 5.518 12 Si 0.723 3.277 13 H -0.202 1.202 14 H -0.218 1.218 15 H -0.217 1.217 16 C 0.038 3.962 17 H 0.086 0.914 18 C -0.214 4.214 19 C 0.275 3.725 20 O -0.351 6.351 21 N -0.367 5.367 22 C -0.008 4.008 23 C -0.132 4.132 24 H 0.096 0.904 25 C -0.202 4.202 26 C -0.143 4.143 27 C -0.125 4.125 28 H 0.091 0.909 29 C -0.200 4.200 30 C -0.007 4.007 31 H 0.112 0.888 32 H 0.078 0.922 33 H 0.076 0.924 34 H 0.103 0.897 35 H 0.121 0.879 36 H 0.134 0.866 37 H 0.048 0.952 38 H 0.062 0.938 39 H 0.078 0.922 40 H 0.065 0.935 41 H 0.081 0.919 42 H 0.105 0.895 43 H 0.076 0.924 44 H 0.075 0.925 45 H 0.073 0.927 46 H 0.073 0.927 47 H 0.079 0.921 48 H 0.078 0.922 49 H 0.072 0.928 50 H 0.067 0.933 51 H 0.080 0.920 52 H 0.106 0.894 53 H 0.071 0.929 Dipole moment (debyes) X Y Z Total from point charges 1.128 -5.478 -14.581 15.617 hybrid contribution 0.034 0.074 0.713 0.718 sum 1.162 -5.404 -13.868 14.929 Atomic orbital electron populations 1.23134 0.77758 1.02835 1.02222 1.86562 1.22497 1.34906 1.84752 1.24473 0.92810 0.80734 0.71688 1.90650 1.67352 1.36251 1.44987 1.22416 0.84624 1.05599 1.04453 1.20875 0.83130 0.88793 1.04120 1.43912 1.00942 1.81942 1.00584 1.18872 1.02228 1.27067 0.88551 0.91639 1.25020 0.99509 0.95049 0.98999 1.70027 1.29530 1.21656 1.30594 0.86375 0.77934 0.77687 0.85688 1.20171 1.21821 1.21676 1.20529 0.93300 0.91018 0.91308 0.91432 1.22202 1.00066 0.98212 1.00910 1.22409 0.79266 0.89857 0.80921 1.90760 1.56341 1.48003 1.40011 1.48555 1.58152 1.17654 1.12296 1.21724 1.00539 0.91799 0.86740 1.21593 1.00729 0.95723 0.95163 0.90407 1.21772 1.01739 0.99142 0.97558 1.21591 0.99816 0.95457 0.97406 1.21490 0.97570 0.97914 0.95498 0.90900 1.21786 0.95648 1.01871 1.00689 1.21415 0.94575 0.86843 0.97837 0.88811 0.92248 0.92359 0.89651 0.87883 0.86645 0.95216 0.93810 0.92214 0.93510 0.91932 0.89521 0.92354 0.92454 0.92707 0.92712 0.92149 0.92207 0.92806 0.93334 0.92024 0.89373 0.92851 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 20. 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 0.42 10.56 101.05 1.07 1.49 16 2 O -0.37 -5.87 10.56 -39.23 -0.41 -6.29 16 3 C 0.46 8.58 7.96 36.01 0.29 8.86 16 4 O -0.51 -10.94 15.73 -18.75 -0.29 -11.24 16 5 C -0.13 -2.43 6.13 -27.88 -0.17 -2.60 16 6 C 0.16 3.65 4.47 -4.04 -0.02 3.63 16 7 N -0.56 -13.14 2.30 -166.98 -0.38 -13.52 16 8 C -0.24 -6.36 7.26 -15.06 -0.11 -6.47 16 9 H 0.07 1.78 6.83 -52.48 -0.36 1.42 16 10 C 0.01 0.41 4.90 -17.43 -0.09 0.32 16 11 N -0.88 -26.09 11.30 55.49 0.63 -25.47 16 12 Si 0.89 22.18 29.61 -169.99 -5.03 17.15 16 13 H -0.28 -6.67 7.11 56.52 0.40 -6.26 16 14 H -0.29 -7.44 7.11 56.52 0.40 -7.04 16 15 H -0.29 -7.16 7.11 56.52 0.40 -6.76 16 16 C 0.15 2.93 2.31 -69.08 -0.16 2.77 16 17 H 0.07 1.19 6.91 -51.93 -0.36 0.83 16 18 C -0.15 -2.54 8.79 37.16 0.33 -2.22 16 19 C 0.49 10.26 6.95 -10.99 -0.08 10.18 16 20 O -0.48 -12.76 14.43 5.56 0.08 -12.68 16 21 N -0.63 -10.13 2.30 -172.77 -0.40 -10.53 16 22 C 0.12 1.42 4.58 -3.71 -0.02 1.40 16 23 C -0.11 -1.20 2.53 -90.50 -0.23 -1.43 16 24 H 0.08 0.94 6.50 -51.93 -0.34 0.61 16 25 C -0.14 -1.20 9.20 37.16 0.34 -0.86 16 26 C -0.11 -1.07 4.72 -26.65 -0.13 -1.20 16 27 C -0.11 -1.28 3.21 -90.47 -0.29 -1.57 16 28 H 0.07 0.79 8.14 -51.93 -0.42 0.37 16 29 C -0.14 -1.97 8.56 37.16 0.32 -1.65 16 30 C 0.12 1.74 5.81 -3.72 -0.02 1.72 16 31 H 0.09 0.82 8.14 -51.93 -0.42 0.40 16 32 H 0.06 0.74 8.14 -51.92 -0.42 0.32 16 33 H 0.06 0.69 8.13 -51.93 -0.42 0.27 16 34 H 0.09 1.36 8.14 -51.93 -0.42 0.94 16 35 H 0.10 1.93 8.14 -51.93 -0.42 1.51 16 36 H 0.12 3.17 5.22 -51.93 -0.27 2.89 16 37 H 0.03 0.69 8.01 -51.93 -0.42 0.28 16 38 H 0.25 7.32 8.31 -40.82 -0.34 6.98 16 39 H 0.06 0.91 8.14 -51.93 -0.42 0.49 16 40 H 0.05 0.63 6.03 -51.93 -0.31 0.31 16 41 H 0.06 1.17 6.96 -51.93 -0.36 0.81 16 42 H 0.09 1.04 4.69 -51.93 -0.24 0.80 16 43 H 0.06 0.64 8.14 -51.93 -0.42 0.22 16 44 H 0.06 0.46 8.14 -51.93 -0.42 0.03 16 45 H 0.05 0.42 8.14 -51.93 -0.42 0.00 16 46 H 0.05 0.42 8.14 -51.93 -0.42 -0.01 16 47 H 0.06 0.57 8.14 -51.93 -0.42 0.15 16 48 H 0.06 0.56 8.14 -51.93 -0.42 0.13 16 49 H 0.05 0.80 8.14 -51.93 -0.42 0.38 16 50 H 0.05 0.58 8.14 -51.93 -0.42 0.15 16 51 H 0.06 0.99 6.20 -51.93 -0.32 0.67 16 52 H 0.09 1.58 7.03 -51.93 -0.37 1.22 16 53 H 0.05 0.72 8.14 -51.93 -0.42 0.29 16 LS Contribution 408.44 15.07 6.16 6.16 Total: -1.00 -33.75 408.44 -7.87 -41.62 By element: Atomic # 1 Polarization: 11.65 SS G_CDS: -9.25 Total: 2.41 kcal Atomic # 6 Polarization: 11.36 SS G_CDS: 1.04 Total: 12.39 kcal Atomic # 7 Polarization: -49.36 SS G_CDS: -0.15 Total: -49.52 kcal Atomic # 8 Polarization: -29.57 SS G_CDS: -0.63 Total: -30.20 kcal Atomic # 14 Polarization: 22.18 SS G_CDS: -5.03 Total: 17.15 kcal Total LS contribution 6.16 Total: 6.16 kcal Total: -33.75 -7.87 -41.62 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. ZINC000879475444.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 -60.013 kcal (2) G-P(sol) polarization free energy of solvation -33.745 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -93.758 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -7.871 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -41.616 kcal (6) G-S(sol) free energy of system = (1) + (5) -101.629 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.74 seconds