Wall clock time and date at job start Sat Apr 11 2020 04:55:40 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 1.52996 * 1 3 3 H 1.09001 * 109.46866 * 2 1 4 4 C 1.50702 * 109.47332 * 240.00111 * 2 1 3 5 5 H 1.07997 * 120.00340 * 239.99424 * 4 2 1 6 6 C 1.37877 * 119.99691 * 60.00039 * 4 2 1 7 7 N 1.31514 * 120.00124 * 359.97438 * 6 4 2 8 8 Si 1.86802 * 119.99854 * 180.02562 * 6 4 2 9 9 H 1.48504 * 109.47027 * 89.99662 * 8 6 4 10 10 H 1.48500 * 109.47200 * 209.99443 * 8 6 4 11 11 H 1.48492 * 109.47166 * 329.99816 * 8 6 4 12 12 N 1.46896 * 109.47636 * 120.00213 * 2 1 3 13 13 C 1.46900 * 111.00678 * 176.04899 * 12 2 1 14 14 C 1.38588 * 110.99727 * 300.00075 * 12 2 1 15 15 N 1.31212 * 126.47599 * 344.93839 * 14 12 2 16 16 N 1.28527 * 109.86615 * 179.97438 * 15 14 12 17 17 C 1.30298 * 110.04923 * 359.97438 * 16 15 14 18 18 C 1.50700 * 126.34691 * 180.02562 * 17 16 15 19 19 C 1.53000 * 109.46821 * 10.53760 * 18 17 16 20 20 C 1.53001 * 109.47013 * 130.53417 * 18 17 16 21 21 C 1.52993 * 109.47320 * 250.53787 * 18 17 16 22 22 N 1.36455 * 126.46976 * 164.62442 * 14 12 2 23 23 C 1.46499 * 127.13765 * 0.03411 * 22 14 12 24 24 C 1.52995 * 109.47106 * 291.74879 * 23 22 14 25 25 C 1.53001 * 113.00121 * 40.38493 * 24 23 22 26 26 C 1.54040 * 113.82092 * 268.39180 * 24 23 22 27 27 O 1.44179 * 85.51913 * 223.20010 * 26 24 23 28 28 C 1.44183 * 93.33986 * 24.19309 * 27 26 24 29 29 H 1.09000 * 109.47399 * 60.00006 * 1 2 3 30 30 H 1.09001 * 109.46866 * 180.02562 * 1 2 3 31 31 H 1.09002 * 109.46996 * 299.99571 * 1 2 3 32 32 H 0.97007 * 120.00092 * 179.97438 * 7 6 4 33 33 H 1.09003 * 109.46964 * 56.88378 * 13 12 2 34 34 H 1.08994 * 109.47481 * 176.88867 * 13 12 2 35 35 H 1.09001 * 109.46690 * 296.88908 * 13 12 2 36 36 H 1.09000 * 109.47374 * 59.99553 * 19 18 17 37 37 H 1.09000 * 109.47040 * 179.97438 * 19 18 17 38 38 H 1.08994 * 109.47297 * 299.99360 * 19 18 17 39 39 H 1.09000 * 109.46934 * 72.32268 * 20 18 17 40 40 H 1.08998 * 109.47117 * 192.32689 * 20 18 17 41 41 H 1.09010 * 109.47145 * 312.32892 * 20 18 17 42 42 H 1.08993 * 109.47764 * 64.90469 * 21 18 17 43 43 H 1.09002 * 109.47143 * 184.90987 * 21 18 17 44 44 H 1.09004 * 109.46898 * 304.90631 * 21 18 17 45 45 H 1.08998 * 109.47074 * 51.75668 * 23 22 14 46 46 H 1.09008 * 109.46842 * 171.75190 * 23 22 14 47 47 H 1.08994 * 109.46972 * 61.47659 * 25 24 23 48 48 H 1.08996 * 109.47086 * 181.47688 * 25 24 23 49 49 H 1.08999 * 109.46552 * 301.47895 * 25 24 23 50 50 H 1.09001 * 113.85865 * 337.34985 * 26 24 23 51 51 H 1.08998 * 113.86146 * 109.04953 * 26 24 23 52 52 H 1.09001 * 113.85871 * 221.65996 * 28 27 26 53 53 H 1.08997 * 113.86246 * 89.95626 * 28 27 26 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 1.5300 0.0000 0.0000 3 1 1.8933 1.0277 0.0000 4 6 2.0324 -0.7104 -1.2305 5 1 2.6533 -1.5884 -1.1314 6 6 1.6993 -0.2393 -2.4827 7 7 0.9427 0.8297 -2.6033 8 14 2.3214 -1.1202 -4.0080 9 1 1.3428 -2.1616 -4.4119 10 1 2.4865 -0.1412 -5.1123 11 1 3.6293 -1.7581 -3.7123 12 7 2.0197 -0.6925 1.1993 13 6 3.4851 -0.7945 1.1870 14 6 1.5754 -0.0641 2.3519 15 7 1.0599 1.1397 2.4347 16 7 0.7569 1.4019 3.6560 17 6 1.0582 0.3891 4.4183 18 6 0.8572 0.3026 5.9094 19 6 0.0020 1.4816 6.3779 20 6 0.1491 -1.0094 6.2532 21 6 2.2161 0.3478 6.6107 22 7 1.5858 -0.5827 3.6140 23 6 2.0655 -1.9052 4.0228 24 6 1.1349 -2.9815 3.4605 25 6 0.6792 -2.6896 2.0294 26 6 -0.0104 -3.3734 4.4132 27 8 0.2892 -4.7314 4.0325 28 6 1.6488 -4.4187 3.6686 29 1 -0.3634 0.5138 -0.8900 30 1 -0.3633 -1.0277 0.0005 31 1 -0.3633 0.5138 0.8900 32 1 0.7087 1.1614 -3.4844 33 1 3.9180 0.2024 1.1034 34 1 3.8247 -1.2617 2.1113 35 1 3.8000 -1.3998 0.3370 36 1 -0.9662 1.4494 5.8782 37 1 -0.1438 1.4188 7.4562 38 1 0.5063 2.4163 6.1330 39 1 0.8418 -1.8409 6.1234 40 1 -0.1912 -0.9782 7.2882 41 1 -0.7077 -1.1439 5.5928 42 1 2.6826 1.3174 6.4370 43 1 2.0776 0.1978 7.6814 44 1 2.8564 -0.4398 6.2133 45 1 3.0740 -2.0603 3.6396 46 1 2.0769 -1.9671 5.1111 47 1 1.5474 -2.6562 1.3713 48 1 0.0011 -3.4754 1.6966 49 1 0.1644 -1.7292 2.0009 50 1 0.1934 -3.1540 5.4612 51 1 -0.9922 -3.0303 4.0870 52 1 1.9828 -4.9047 2.7519 53 1 2.3591 -4.5185 4.4893 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 ZINC001417465134.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 04:55:40 Heat of formation + Delta-G solvation = 101.182588 kcal Electronic energy + Delta-G solvation = -32922.779288 eV Core-core repulsion = 29026.953439 eV Total energy + Delta-G solvation = -3895.825850 eV No. of doubly occupied orbitals = 65 Molecular weight (most abundant/longest-lived isotopes) = 336.227 amu Computer time = 0.89 seconds Orbital eigenvalues (eV) -42.75855 -40.66491 -37.67051 -36.68329 -35.02917 -32.79988 -31.44954 -29.27786 -29.06318 -28.15978 -27.58913 -27.07450 -26.37419 -25.50013 -25.27500 -24.30525 -22.43006 -21.59436 -19.82722 -19.20348 -18.70223 -17.02193 -16.69819 -16.15779 -16.03906 -15.67943 -15.53983 -15.19389 -14.95521 -14.65729 -14.24040 -14.19357 -13.69693 -13.59305 -13.28864 -12.99713 -12.49158 -12.40292 -12.31101 -12.08486 -12.03217 -11.87025 -11.79526 -11.73629 -11.45295 -11.25672 -11.15154 -11.02424 -10.98278 -10.89160 -10.76920 -10.67532 -10.43432 -10.28941 -10.19892 -10.03829 -9.81691 -9.71912 -9.44152 -9.18071 -8.58190 -8.44367 -7.34335 -6.05417 -4.13210 2.23283 2.63224 3.27457 3.34538 3.35465 3.41042 3.57810 4.00264 4.26421 4.31642 4.42695 4.56424 4.61776 4.71822 4.77095 4.92758 5.00163 5.09876 5.12940 5.20877 5.27050 5.30822 5.41959 5.48871 5.49240 5.60946 5.64204 5.75817 5.77987 5.79828 5.83646 5.93951 5.97980 5.99887 6.05922 6.10650 6.17798 6.29150 6.34745 6.38700 6.42929 6.48313 6.90514 6.94377 7.04590 7.15180 7.25688 7.43642 7.69210 7.72766 7.95370 8.25179 8.43602 8.88791 9.38372 9.51860 11.00734 Molecular weight = 336.23amu Principal moments of inertia in cm(-1) A = 0.013592 B = 0.004455 C = 0.003731 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2059.490971 B = 6283.903733 C = 7503.046853 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.135 4.135 2 C 0.229 3.771 3 H 0.023 0.977 4 C -0.516 4.516 5 H 0.064 0.936 6 C 0.065 3.935 7 N -0.883 5.883 8 Si 0.898 3.102 9 H -0.280 1.280 10 H -0.287 1.287 11 H -0.275 1.275 12 N -0.452 5.452 13 C 0.038 3.962 14 C 0.385 3.615 15 N -0.316 5.316 16 N -0.284 5.284 17 C 0.159 3.841 18 C 0.028 3.972 19 C -0.128 4.128 20 C -0.158 4.158 21 C -0.142 4.142 22 N -0.477 5.477 23 C 0.114 3.886 24 C -0.137 4.137 25 C -0.128 4.128 26 C 0.030 3.970 27 O -0.376 6.376 28 C 0.046 3.954 29 H 0.087 0.913 30 H 0.027 0.973 31 H 0.025 0.975 32 H 0.262 0.738 33 H 0.032 0.968 34 H 0.043 0.957 35 H 0.093 0.907 36 H 0.062 0.938 37 H 0.059 0.941 38 H 0.067 0.933 39 H 0.063 0.937 40 H 0.069 0.931 41 H 0.064 0.936 42 H 0.063 0.937 43 H 0.066 0.934 44 H 0.052 0.948 45 H 0.090 0.910 46 H 0.098 0.902 47 H 0.103 0.897 48 H 0.048 0.952 49 H 0.070 0.930 50 H 0.086 0.914 51 H 0.089 0.911 52 H 0.097 0.903 53 H 0.078 0.922 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 2.816 -6.950 19.078 20.498 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 -0.193 4.193 2 C 0.125 3.875 3 H 0.040 0.960 4 C -0.554 4.554 5 H 0.082 0.918 6 C -0.138 4.138 7 N -0.520 5.520 8 Si 0.726 3.274 9 H -0.206 1.206 10 H -0.213 1.213 11 H -0.199 1.199 12 N -0.177 5.177 13 C -0.109 4.109 14 C 0.031 3.969 15 N -0.160 5.160 16 N -0.122 5.122 17 C -0.108 4.108 18 C 0.025 3.975 19 C -0.186 4.186 20 C -0.216 4.216 21 C -0.200 4.200 22 N -0.173 5.173 23 C -0.010 4.010 24 C -0.138 4.138 25 C -0.185 4.185 26 C -0.046 4.046 27 O -0.294 6.294 28 C -0.031 4.031 29 H 0.105 0.895 30 H 0.046 0.954 31 H 0.044 0.956 32 H 0.072 0.928 33 H 0.050 0.950 34 H 0.061 0.939 35 H 0.112 0.888 36 H 0.081 0.919 37 H 0.078 0.922 38 H 0.086 0.914 39 H 0.082 0.918 40 H 0.088 0.912 41 H 0.083 0.917 42 H 0.082 0.918 43 H 0.085 0.915 44 H 0.071 0.929 45 H 0.109 0.891 46 H 0.116 0.884 47 H 0.122 0.878 48 H 0.067 0.933 49 H 0.089 0.911 50 H 0.104 0.896 51 H 0.107 0.893 52 H 0.115 0.885 53 H 0.096 0.904 Dipole moment (debyes) X Y Z Total from point charges 1.899 -6.158 18.427 19.522 hybrid contribution 1.119 -0.953 -0.604 1.589 sum 3.017 -7.111 17.823 19.425 Atomic orbital electron populations 1.21870 0.96945 0.99108 1.01419 1.19333 0.93059 0.92765 0.82327 0.95965 1.21030 1.32173 1.12699 0.89517 0.91816 1.24886 0.95016 0.94954 0.98926 1.69923 1.35978 1.22507 1.23622 0.86509 0.79106 0.79283 0.82528 1.20649 1.21266 1.19946 1.59760 1.10100 1.48363 0.99507 1.22314 0.85882 1.01246 1.01497 1.23002 1.00353 0.88788 0.84806 1.74841 1.20170 1.10247 1.10745 1.73949 1.18870 1.22227 0.97202 1.24349 1.03655 0.87465 0.95346 1.18867 0.96683 0.97402 0.84539 1.21686 0.99907 0.96992 0.99990 1.22440 1.00819 0.95836 1.02474 1.21953 0.95300 1.02579 1.00190 1.46089 1.49515 1.14217 1.07467 1.22100 0.98598 0.79660 1.00606 1.24167 0.95589 0.94193 0.99828 1.22114 1.03816 1.01480 0.91078 1.24552 0.99857 0.81888 0.98304 1.89682 1.25667 1.28332 1.85764 1.24042 0.85812 0.92712 1.00539 0.89465 0.95416 0.95572 0.92766 0.94956 0.93877 0.88812 0.91895 0.92235 0.91399 0.91816 0.91169 0.91734 0.91807 0.91455 0.92940 0.89148 0.88385 0.87845 0.93308 0.91083 0.89585 0.89291 0.88480 0.90431 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 -0.14 -3.41 8.07 37.16 0.30 -3.11 16 2 C 0.23 5.64 1.72 -68.87 -0.12 5.52 16 3 H 0.02 0.64 7.96 -51.93 -0.41 0.23 16 4 C -0.52 -13.25 7.96 -34.44 -0.27 -13.53 16 5 H 0.06 1.57 6.40 -52.49 -0.34 1.24 16 6 C 0.07 1.73 5.30 -17.82 -0.09 1.64 16 7 N -0.88 -24.86 11.32 55.43 0.63 -24.23 16 8 Si 0.90 20.59 29.54 -169.99 -5.02 15.57 16 9 H -0.28 -6.44 7.11 56.52 0.40 -6.04 16 10 H -0.29 -6.62 7.11 56.52 0.40 -6.22 16 11 H -0.27 -6.13 7.11 56.52 0.40 -5.73 16 12 N -0.45 -9.04 1.09 -176.09 -0.19 -9.23 16 13 C 0.04 0.67 8.93 60.06 0.54 1.21 16 14 C 0.39 7.52 4.12 -318.87 -1.31 6.20 16 15 N -0.32 -7.06 9.69 30.32 0.29 -6.77 16 16 N -0.28 -5.60 11.52 32.99 0.38 -5.22 16 17 C 0.16 2.47 6.34 -154.01 -0.98 1.49 16 18 C 0.03 0.30 0.75 -155.66 -0.12 0.19 16 19 C -0.13 -1.35 7.98 37.16 0.30 -1.06 16 20 C -0.16 -1.39 6.55 37.16 0.24 -1.14 16 21 C -0.14 -1.27 8.34 37.15 0.31 -0.96 16 22 N -0.48 -7.31 2.69 -114.08 -0.31 -7.62 16 23 C 0.11 1.30 5.02 -4.05 -0.02 1.28 16 24 C -0.14 -1.66 1.29 -153.42 -0.20 -1.86 16 25 C -0.13 -2.05 7.02 37.16 0.26 -1.79 16 26 C 0.03 0.35 6.93 37.61 0.26 0.61 16 27 O -0.38 -4.93 12.37 -35.23 -0.44 -5.37 16 28 C 0.05 0.49 8.36 37.61 0.31 0.80 16 29 H 0.09 2.42 6.07 -51.93 -0.32 2.11 16 30 H 0.03 0.67 7.45 -51.93 -0.39 0.28 16 31 H 0.03 0.65 6.01 -51.93 -0.31 0.33 16 32 H 0.26 7.07 8.31 -40.82 -0.34 6.73 16 33 H 0.03 0.61 8.14 -51.93 -0.42 0.19 16 34 H 0.04 0.62 6.03 -51.93 -0.31 0.30 16 35 H 0.09 1.66 6.35 -51.93 -0.33 1.33 16 36 H 0.06 0.74 8.14 -51.93 -0.42 0.32 16 37 H 0.06 0.47 8.14 -51.93 -0.42 0.05 16 38 H 0.07 0.80 8.12 -51.93 -0.42 0.38 16 39 H 0.06 0.50 3.25 -51.93 -0.17 0.33 16 40 H 0.07 0.47 8.09 -51.93 -0.42 0.05 16 41 H 0.06 0.66 7.35 -51.92 -0.38 0.28 16 42 H 0.06 0.63 8.14 -51.93 -0.42 0.21 16 43 H 0.07 0.45 8.14 -51.93 -0.42 0.03 16 44 H 0.05 0.45 6.71 -51.93 -0.35 0.10 16 45 H 0.09 0.97 6.30 -51.93 -0.33 0.64 16 46 H 0.10 0.87 3.83 -51.92 -0.20 0.67 16 47 H 0.10 1.80 6.07 -51.93 -0.32 1.48 16 48 H 0.05 0.79 8.09 -51.93 -0.42 0.37 16 49 H 0.07 1.35 4.46 -51.93 -0.23 1.12 16 50 H 0.09 0.78 4.91 -51.93 -0.25 0.53 16 51 H 0.09 1.10 8.10 -51.93 -0.42 0.68 16 52 H 0.10 1.00 8.10 -51.93 -0.42 0.58 16 53 H 0.08 0.61 8.10 -51.93 -0.42 0.19 16 LS Contribution 380.97 15.07 5.74 5.74 Total: -1.00 -30.98 380.97 -7.91 -38.89 By element: Atomic # 1 Polarization: 11.15 SS G_CDS: -8.40 Total: 2.75 kcal Atomic # 6 Polarization: -3.91 SS G_CDS: -0.59 Total: -4.50 kcal Atomic # 7 Polarization: -53.89 SS G_CDS: 0.80 Total: -53.08 kcal Atomic # 8 Polarization: -4.93 SS G_CDS: -0.44 Total: -5.37 kcal Atomic # 14 Polarization: 20.59 SS G_CDS: -5.02 Total: 15.57 kcal Total LS contribution 5.74 Total: 5.74 kcal Total: -30.98 -7.91 -38.89 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. ZINC001417465134.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 140.075 kcal (2) G-P(sol) polarization free energy of solvation -30.984 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 109.090 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -7.908 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -38.892 kcal (6) G-S(sol) free energy of system = (1) + (5) 101.183 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.90 seconds