Wall clock time and date at job start Tue Mar 31 2020 19:46:58 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 C 1.31002 * 1 3 3 C 1.50703 * 120.00196 * 2 1 4 4 C 1.53000 * 109.46940 * 247.90290 * 3 2 1 5 5 C 1.53008 * 109.46940 * 7.89967 * 3 2 1 6 6 C 1.52993 * 109.47077 * 176.16002 * 5 3 2 7 7 C 1.50699 * 109.47387 * 127.89964 * 3 2 1 8 8 O 1.21282 * 119.99886 * 126.60632 * 7 3 2 9 9 N 1.34769 * 120.00083 * 306.60351 * 7 3 2 10 10 C 1.46931 * 120.63137 * 174.84381 * 9 7 3 11 11 C 1.53180 * 108.77874 * 233.63441 * 10 9 7 12 12 C 1.53048 * 109.31416 * 305.36479 * 11 10 9 13 13 O 1.42895 * 109.46257 * 181.38700 * 12 11 10 14 14 C 1.42894 * 113.99969 * 149.97075 * 13 12 11 15 15 C 1.53503 * 114.20765 * 149.99977 * 14 13 12 16 16 N 1.47074 * 87.98651 * 87.52052 * 15 14 13 17 17 C 1.36930 * 136.05866 * 206.87083 * 16 15 14 18 18 H 1.08008 * 120.00034 * 359.97438 * 17 16 15 19 19 C 1.38815 * 120.00249 * 179.97438 * 17 16 15 20 20 N 1.31617 * 119.99637 * 359.97438 * 19 17 16 21 21 Si 1.86797 * 120.00006 * 179.97438 * 19 17 16 22 22 H 1.48500 * 109.47225 * 89.99785 * 21 19 17 23 23 H 1.48500 * 109.46801 * 209.99662 * 21 19 17 24 24 H 1.48503 * 109.47265 * 329.99492 * 21 19 17 25 25 C 1.47067 * 87.88282 * 27.12201 * 16 15 14 26 26 C 1.53032 * 109.52529 * 61.36911 * 12 11 10 27 27 C 1.46925 * 120.63107 * 354.87241 * 9 7 3 28 28 H 1.08002 * 119.99653 * 5.53095 * 1 2 3 29 29 H 1.07998 * 119.99962 * 185.52754 * 1 2 3 30 30 H 1.08004 * 119.99963 * 179.97438 * 2 1 3 31 31 H 1.08995 * 109.47257 * 305.12090 * 4 3 2 32 32 H 1.09006 * 109.46729 * 65.11646 * 4 3 2 33 33 H 1.08996 * 109.46976 * 185.11759 * 4 3 2 34 34 H 1.09004 * 109.47097 * 296.16683 * 5 3 2 35 35 H 1.08996 * 109.46863 * 56.16214 * 5 3 2 36 36 H 1.08996 * 109.47416 * 304.84244 * 6 5 3 37 37 H 1.09009 * 109.46809 * 64.83760 * 6 5 3 38 38 H 1.08999 * 109.47188 * 184.83817 * 6 5 3 39 39 H 1.08997 * 109.58465 * 113.84318 * 10 9 7 40 40 H 1.08999 * 109.58166 * 353.42211 * 10 9 7 41 41 H 1.09001 * 109.50149 * 185.41644 * 11 10 9 42 42 H 1.08996 * 109.52784 * 65.32853 * 11 10 9 43 43 H 1.09004 * 109.45705 * 301.35739 * 12 11 10 44 44 H 1.08994 * 113.28485 * 16.93660 * 14 13 12 45 45 H 1.09001 * 113.46541 * 332.74008 * 15 14 13 46 46 H 1.08996 * 113.52363 * 202.30939 * 15 14 13 47 47 H 0.97001 * 119.99859 * 179.97438 * 20 19 17 48 48 H 1.09001 * 113.46675 * 87.66114 * 25 16 15 49 49 H 1.09000 * 113.46718 * 218.10358 * 25 16 15 50 50 H 1.09001 * 109.49619 * 58.58365 * 26 12 11 51 51 H 1.09004 * 109.49939 * 178.67510 * 26 12 11 52 52 H 1.09010 * 109.58405 * 246.15014 * 27 9 7 53 53 H 1.08989 * 109.59125 * 6.43418 * 27 9 7 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 1.3100 0.0000 0.0000 3 6 2.0636 1.3051 0.0000 4 6 2.7885 1.4754 -1.3366 5 6 1.0812 2.4612 0.1983 6 6 1.8552 3.7774 0.2941 7 6 3.0706 1.3038 1.1211 8 8 4.2362 1.5461 0.8895 9 7 2.6760 1.0334 2.3811 10 6 3.6607 0.9172 3.4653 11 6 3.4580 -0.4256 4.1739 12 6 2.0022 -0.5416 4.6319 13 8 1.8173 -1.7792 5.3217 14 6 0.8078 -1.7362 6.3322 15 6 0.0923 -3.0742 6.5644 16 7 1.1521 -3.4149 7.5256 17 6 1.7184 -4.5672 8.0015 18 1 1.3716 -5.5262 7.6458 19 6 2.7382 -4.5028 8.9410 20 7 3.1612 -3.3341 9.3740 21 14 3.5103 -6.0748 9.5907 22 1 4.6617 -6.4523 8.7323 23 1 3.9807 -5.8568 10.9822 24 1 2.5021 -7.1650 9.5741 25 6 1.3315 -1.9734 7.7555 26 6 1.0774 -0.4937 3.4136 27 6 1.2529 0.8486 2.6964 28 1 -0.5400 0.9310 -0.0902 29 1 -0.5400 -0.9309 0.0901 30 1 1.8500 -0.9353 0.0004 31 1 3.4206 0.6067 -1.5203 32 1 2.0556 1.5676 -2.1382 33 1 3.4056 2.3732 -1.3033 34 1 0.3948 2.5040 -0.6475 35 1 0.5161 2.3043 1.1170 36 1 2.6012 3.7035 1.0853 37 1 2.3515 3.9771 -0.6557 38 1 1.1644 4.5895 0.5208 39 1 3.5187 1.7308 4.1766 40 1 4.6677 0.9633 3.0507 41 1 4.1174 -0.4834 5.0398 42 1 3.6887 -1.2390 3.4860 43 1 1.7650 0.2859 5.3006 44 1 0.1378 -0.8820 6.2357 45 1 0.0803 -3.7184 5.6852 46 1 -0.8911 -2.9679 7.0223 47 1 3.8736 -3.2890 10.0308 48 1 0.6783 -1.5728 8.5308 49 1 2.3732 -1.6815 7.8889 50 1 1.3307 -1.3061 2.7324 51 1 0.0422 -0.5999 3.7382 52 1 0.9145 1.6566 3.3452 53 1 0.6710 0.8518 1.7749 RHF calculation, no. of doubly occupied orbitals= 65 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 ZINC001093567532.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 19:46:58 Heat of formation + Delta-G solvation = 11.170417 kcal Electronic energy + Delta-G solvation = -30902.389836 eV Core-core repulsion = 26970.368015 eV Total energy + Delta-G solvation = -3932.021821 eV No. of doubly occupied orbitals = 65 Molecular weight (most abundant/longest-lived isotopes) = 336.220 amu Computer time = 2.65 seconds Orbital eigenvalues (eV) -41.18327 -38.94299 -37.57564 -37.05609 -35.30663 -32.38987 -32.15712 -31.40247 -31.07382 -29.80530 -27.54333 -25.85372 -24.62999 -24.56225 -23.41009 -23.05204 -22.68035 -21.15288 -20.01699 -19.36031 -18.55470 -17.09240 -16.80666 -16.34831 -16.04610 -15.93411 -15.18267 -14.92156 -14.74665 -14.65259 -14.40775 -14.28455 -13.79067 -13.67775 -13.47591 -13.10506 -12.99657 -12.75182 -12.63899 -12.49309 -12.26705 -12.22619 -12.03733 -11.99254 -11.73279 -11.71614 -11.30692 -11.12868 -11.07494 -10.91862 -10.87388 -10.80611 -10.50874 -10.31318 -10.16855 -10.10857 -9.79086 -9.41970 -9.24588 -8.81916 -8.76499 -8.61327 -6.81158 -5.69571 -3.00852 1.81310 2.48209 2.83628 3.43703 3.47784 3.49750 3.98908 4.16624 4.28046 4.39615 4.51339 4.63249 4.67981 4.88171 4.93375 4.97562 5.01585 5.05888 5.16627 5.19043 5.24587 5.30685 5.41215 5.46414 5.47725 5.48852 5.50535 5.53105 5.56061 5.59468 5.66923 5.71548 5.75353 5.85257 5.85753 5.89593 5.97192 6.01186 6.16275 6.21701 6.29024 6.30401 6.41449 6.47028 6.58621 6.59990 7.01635 7.25875 7.27276 7.59965 7.96987 8.02523 8.08438 9.10357 9.77446 10.70926 11.48230 Molecular weight = 336.22amu Principal moments of inertia in cm(-1) A = 0.021694 B = 0.002512 C = 0.002437 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1290.366355 B =11144.244670 C =11485.293928 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.191 4.191 2 C -0.140 4.140 3 C -0.054 4.054 4 C -0.124 4.124 5 C -0.123 4.123 6 C -0.156 4.156 7 C 0.533 3.467 8 O -0.541 6.541 9 N -0.605 5.605 10 C 0.114 3.886 11 C -0.130 4.130 12 C 0.091 3.909 13 O -0.339 6.339 14 C 0.032 3.968 15 C 0.113 3.887 16 N -0.602 5.602 17 C -0.212 4.212 18 H 0.080 0.920 19 C -0.009 4.009 20 N -0.921 5.921 21 Si 0.912 3.088 22 H -0.288 1.288 23 H -0.291 1.291 24 H -0.282 1.282 25 C 0.136 3.864 26 C -0.154 4.154 27 C 0.085 3.915 28 H 0.106 0.894 29 H 0.106 0.894 30 H 0.116 0.884 31 H 0.061 0.939 32 H 0.061 0.939 33 H 0.069 0.931 34 H 0.077 0.923 35 H 0.078 0.922 36 H 0.056 0.944 37 H 0.060 0.940 38 H 0.058 0.942 39 H 0.068 0.932 40 H 0.095 0.905 41 H 0.086 0.914 42 H 0.073 0.927 43 H 0.058 0.942 44 H 0.061 0.939 45 H 0.045 0.955 46 H 0.042 0.958 47 H 0.252 0.748 48 H 0.031 0.969 49 H 0.077 0.923 50 H 0.074 0.926 51 H 0.076 0.924 52 H 0.066 0.934 53 H 0.111 0.889 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -7.276 14.879 -20.268 26.175 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 -0.227 4.227 2 C -0.158 4.158 3 C -0.057 4.057 4 C -0.181 4.181 5 C -0.160 4.160 6 C -0.214 4.214 7 C 0.321 3.679 8 O -0.418 6.418 9 N -0.337 5.337 10 C -0.008 4.008 11 C -0.168 4.168 12 C 0.032 3.968 13 O -0.257 6.257 14 C -0.027 4.027 15 C -0.013 4.013 16 N -0.328 5.328 17 C -0.339 4.339 18 H 0.098 0.902 19 C -0.206 4.206 20 N -0.568 5.568 21 Si 0.742 3.258 22 H -0.215 1.215 23 H -0.217 1.217 24 H -0.207 1.207 25 C 0.010 3.990 26 C -0.192 4.192 27 C -0.037 4.037 28 H 0.124 0.876 29 H 0.124 0.876 30 H 0.134 0.866 31 H 0.080 0.920 32 H 0.080 0.920 33 H 0.088 0.912 34 H 0.096 0.904 35 H 0.096 0.904 36 H 0.075 0.925 37 H 0.079 0.921 38 H 0.077 0.923 39 H 0.087 0.913 40 H 0.113 0.887 41 H 0.105 0.895 42 H 0.091 0.909 43 H 0.076 0.924 44 H 0.079 0.921 45 H 0.063 0.937 46 H 0.059 0.941 47 H 0.062 0.938 48 H 0.049 0.951 49 H 0.095 0.905 50 H 0.092 0.908 51 H 0.095 0.905 52 H 0.084 0.916 53 H 0.128 0.872 Dipole moment (debyes) X Y Z Total from point charges -6.298 14.624 -20.208 25.727 hybrid contribution 0.129 -0.800 0.751 1.105 sum -6.169 13.823 -19.457 24.652 Atomic orbital electron populations 1.24027 0.95703 1.02906 1.00104 1.22767 0.96043 0.97056 0.99946 1.19990 0.95372 0.94887 0.95468 1.21639 0.99856 1.03325 0.93287 1.21937 0.97411 0.93565 1.03132 1.21848 1.00400 0.96560 1.02546 1.20275 0.88861 0.75694 0.83075 1.90683 1.19026 1.48936 1.83159 1.48093 1.07862 1.69978 1.07804 1.21637 0.93717 0.97018 0.88446 1.21956 0.96467 0.97096 1.01301 1.21997 0.94446 0.88118 0.92236 1.88049 1.56993 1.30725 1.49901 1.23940 0.90322 0.97353 0.91099 1.22650 0.92428 0.92871 0.93377 1.45371 1.37763 1.01946 1.47679 1.18895 1.12941 0.83672 1.18382 0.90244 1.24764 0.99271 0.96947 0.99583 1.69826 1.30796 1.22094 1.34094 0.86120 0.79311 0.82295 0.78039 1.21545 1.21700 1.20744 1.22575 1.01013 0.85159 0.90275 1.22450 1.00896 0.97364 0.98520 1.22415 0.81673 0.97363 1.02264 0.87554 0.87574 0.86650 0.92002 0.91960 0.91185 0.90398 0.90397 0.92532 0.92077 0.92265 0.91326 0.88669 0.89498 0.90863 0.92352 0.92126 0.93672 0.94052 0.93804 0.95144 0.90517 0.90751 0.90510 0.91580 0.87191 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 15. 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 -0.19 -1.19 12.05 29.01 0.35 -0.84 16 2 C -0.14 -1.11 7.05 -36.02 -0.25 -1.37 16 3 C -0.05 -0.47 0.51 -156.81 -0.08 -0.55 16 4 C -0.12 -1.06 7.47 37.16 0.28 -0.78 16 5 C -0.12 -0.83 3.46 -26.73 -0.09 -0.93 16 6 C -0.16 -1.16 9.32 37.15 0.35 -0.82 16 7 C 0.53 6.33 4.94 -10.99 -0.05 6.28 16 8 O -0.54 -8.24 15.31 5.56 0.09 -8.15 16 9 N -0.60 -6.71 2.96 -172.77 -0.51 -7.22 16 10 C 0.11 1.36 6.42 -3.71 -0.02 1.33 16 11 C -0.13 -1.79 5.73 -26.61 -0.15 -1.95 16 12 C 0.09 1.29 2.46 -26.69 -0.07 1.22 16 13 O -0.34 -6.53 10.04 -35.23 -0.35 -6.89 16 14 C 0.03 0.61 4.50 -26.21 -0.12 0.49 16 15 C 0.11 2.38 8.52 -8.50 -0.07 2.31 16 16 N -0.60 -16.07 3.78 -184.76 -0.70 -16.76 16 17 C -0.21 -6.17 10.75 -15.06 -0.16 -6.33 16 18 H 0.08 2.23 7.83 -52.48 -0.41 1.82 16 19 C -0.01 -0.28 5.50 -17.43 -0.10 -0.37 16 20 N -0.92 -28.08 11.51 55.49 0.64 -27.44 16 21 Si 0.91 22.80 29.55 -169.99 -5.02 17.77 16 22 H -0.29 -7.20 7.11 56.52 0.40 -6.80 16 23 H -0.29 -7.27 7.11 56.52 0.40 -6.87 16 24 H -0.28 -6.82 7.11 56.52 0.40 -6.42 16 25 C 0.14 3.26 7.25 -8.50 -0.06 3.20 16 26 C -0.15 -1.72 5.69 -26.61 -0.15 -1.87 16 27 C 0.09 0.78 4.59 -3.71 -0.02 0.76 16 28 H 0.11 0.53 5.81 -52.49 -0.30 0.22 16 29 H 0.11 0.62 8.06 -52.49 -0.42 0.19 16 30 H 0.12 1.02 8.06 -52.48 -0.42 0.60 16 31 H 0.06 0.58 8.14 -51.93 -0.42 0.16 16 32 H 0.06 0.41 8.14 -51.93 -0.42 -0.01 16 33 H 0.07 0.65 6.62 -51.93 -0.34 0.31 16 34 H 0.08 0.41 7.30 -51.93 -0.38 0.03 16 35 H 0.08 0.49 5.02 -51.93 -0.26 0.23 16 36 H 0.06 0.54 6.92 -51.93 -0.36 0.18 16 37 H 0.06 0.44 6.90 -51.92 -0.36 0.09 16 38 H 0.06 0.36 8.14 -51.93 -0.42 -0.06 16 39 H 0.07 0.73 8.14 -51.93 -0.42 0.31 16 40 H 0.09 1.23 7.04 -51.93 -0.37 0.86 16 41 H 0.09 1.29 8.14 -51.93 -0.42 0.86 16 42 H 0.07 1.09 8.14 -51.93 -0.42 0.67 16 43 H 0.06 0.78 7.71 -51.93 -0.40 0.38 16 44 H 0.06 0.94 7.76 -51.93 -0.40 0.53 16 45 H 0.05 0.93 8.14 -51.93 -0.42 0.51 16 46 H 0.04 0.80 8.14 -51.93 -0.42 0.38 16 47 H 0.25 7.43 8.31 -40.82 -0.34 7.09 16 48 H 0.03 0.72 8.14 -51.93 -0.42 0.30 16 49 H 0.08 2.08 7.12 -51.93 -0.37 1.71 16 50 H 0.07 0.91 8.14 -51.93 -0.42 0.49 16 51 H 0.08 0.80 8.14 -51.93 -0.42 0.37 16 52 H 0.07 0.54 8.14 -51.92 -0.42 0.12 16 53 H 0.11 0.84 1.76 -51.94 -0.09 0.75 16 LS Contribution 400.57 15.07 6.04 6.04 Total: -1.00 -34.51 400.57 -9.35 -43.86 By element: Atomic # 1 Polarization: 8.11 SS G_CDS: -9.10 Total: -0.99 kcal Atomic # 6 Polarization: 0.21 SS G_CDS: -0.43 Total: -0.22 kcal Atomic # 7 Polarization: -50.86 SS G_CDS: -0.57 Total: -51.43 kcal Atomic # 8 Polarization: -14.77 SS G_CDS: -0.27 Total: -15.04 kcal Atomic # 14 Polarization: 22.80 SS G_CDS: -5.02 Total: 17.77 kcal Total LS contribution 6.04 Total: 6.04 kcal Total: -34.51 -9.35 -43.86 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. ZINC001093567532.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 55.032 kcal (2) G-P(sol) polarization free energy of solvation -34.507 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 20.525 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.355 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -43.862 kcal (6) G-S(sol) free energy of system = (1) + (5) 11.170 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 2.65 seconds