Wall clock time and date at job start Sat Apr 11 2020 06:12:18 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 1.42903 * 113.99780 * 2 1 4 4 C 1.53000 * 109.47254 * 149.99875 * 3 2 1 5 5 C 1.52995 * 109.47254 * 179.97438 * 4 3 2 6 6 C 1.53006 * 109.47254 * 300.00510 * 5 4 3 7 7 C 1.50699 * 109.46815 * 180.02562 * 6 5 4 8 8 O 1.21283 * 119.99737 * 239.99555 * 7 6 5 9 9 N 1.34771 * 120.00095 * 59.99779 * 7 6 5 10 10 C 1.46505 * 119.99854 * 174.69952 * 9 7 6 11 11 C 1.52995 * 109.54400 * 304.07292 * 10 9 7 12 12 N 1.46502 * 109.47238 * 305.58191 * 11 10 9 13 13 C 1.36938 * 119.99994 * 175.02674 * 12 11 10 14 14 H 1.07997 * 120.00373 * 359.97438 * 13 12 11 15 15 C 1.38818 * 119.99912 * 180.02562 * 13 12 11 16 16 N 1.31619 * 119.99556 * 359.97438 * 15 13 12 17 17 Si 1.86801 * 119.99873 * 179.97438 * 15 13 12 18 18 H 1.48492 * 109.47021 * 0.02562 * 17 15 13 19 19 H 1.48500 * 109.46753 * 120.00247 * 17 15 13 20 20 H 1.48502 * 109.47000 * 239.99535 * 17 15 13 21 21 C 1.53178 * 109.54419 * 183.89590 * 10 9 7 22 22 C 1.53279 * 109.06294 * 297.03043 * 21 10 9 23 23 O 1.42908 * 109.46052 * 302.44488 * 22 21 10 24 24 C 1.42901 * 114.09633 * 61.15948 * 23 22 21 25 25 C 1.53090 * 109.41341 * 298.84035 * 24 23 22 26 26 C 1.53001 * 109.47032 * 59.99579 * 6 5 4 27 27 C 1.52991 * 109.47499 * 299.99962 * 26 6 5 28 28 H 1.09001 * 109.46596 * 179.97438 * 1 2 3 29 29 H 1.08996 * 109.46920 * 299.99656 * 1 2 3 30 30 H 1.08998 * 109.47176 * 60.00471 * 1 2 3 31 31 H 1.09000 * 109.47197 * 29.99735 * 3 2 1 32 32 H 1.08993 * 109.47174 * 300.00456 * 4 3 2 33 33 H 1.09002 * 109.46551 * 60.00298 * 4 3 2 34 34 H 1.09000 * 109.46992 * 59.99986 * 5 4 3 35 35 H 1.08995 * 109.46965 * 179.97438 * 5 4 3 36 36 H 1.09000 * 109.46694 * 299.99659 * 6 5 4 37 37 H 0.96999 * 120.00319 * 354.70158 * 9 7 6 38 38 H 1.08998 * 109.47532 * 65.58330 * 11 10 9 39 39 H 1.09002 * 109.47498 * 185.58359 * 11 10 9 40 40 H 0.97000 * 119.99732 * 355.02816 * 12 11 10 41 41 H 0.97001 * 119.99383 * 180.02562 * 16 15 13 42 42 H 1.09001 * 109.51996 * 57.01592 * 21 10 9 43 43 H 1.08999 * 109.52265 * 177.21085 * 21 10 9 44 44 H 1.09000 * 109.46109 * 182.45094 * 22 21 10 45 45 H 1.09002 * 109.46826 * 62.44673 * 22 21 10 46 46 H 1.09003 * 109.47951 * 178.86355 * 24 23 22 47 47 H 1.08996 * 109.48922 * 58.82950 * 24 23 22 48 48 H 1.09000 * 109.52308 * 297.70055 * 25 24 23 49 49 H 1.09006 * 109.57283 * 177.54814 * 25 24 23 50 50 H 1.09002 * 109.46613 * 179.97438 * 26 6 5 51 51 H 1.08998 * 109.46809 * 60.00470 * 26 6 5 52 52 H 1.09000 * 109.47243 * 300.00543 * 27 26 6 53 53 H 1.08996 * 109.47288 * 179.97438 * 27 26 6 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 1.3055 0.0000 4 6 3.3589 1.2634 0.7213 5 6 3.9815 2.6610 0.7207 6 6 4.1889 3.1264 -0.7220 7 6 4.8027 4.5027 -0.7224 8 8 4.2188 5.4268 -1.2478 9 7 6.0003 4.7066 -0.1391 10 6 6.6507 6.0156 -0.2397 11 6 6.8037 6.3992 -1.7129 12 7 7.5073 5.3299 -2.4255 13 6 7.6709 5.4042 -3.7830 14 1 7.2808 6.2507 -4.3284 15 6 8.3372 4.3907 -4.4583 16 7 8.8121 3.3587 -3.7936 17 14 8.5597 4.4917 -6.3102 18 1 7.9396 5.7426 -6.8158 19 1 10.0087 4.4915 -6.6354 20 1 7.9084 3.3213 -6.9515 21 6 8.0319 5.9535 0.4197 22 6 7.8610 5.6460 1.9116 23 8 7.0340 6.6450 2.5119 24 6 5.7155 6.7163 1.9657 25 6 5.7992 7.0673 0.4780 26 6 2.8402 3.1684 -1.4432 27 6 2.2177 1.7709 -1.4427 28 1 -0.3632 -1.0277 -0.0005 29 1 -0.3633 0.5138 0.8900 30 1 -0.3633 0.5137 -0.8900 31 1 1.3450 1.9994 0.5138 32 1 3.2112 0.9314 1.7489 33 1 4.0242 0.5695 0.2073 34 1 3.3163 3.3552 1.2343 35 1 4.9420 2.6310 1.2349 36 1 4.8540 2.4321 -1.2356 37 1 6.4318 3.9868 0.3473 38 1 5.8179 6.5430 -2.1552 39 1 7.3750 7.3243 -1.7900 40 1 7.8573 4.5694 -1.9356 41 1 9.2780 2.6508 -4.2654 42 1 8.6250 5.1691 -0.0504 43 1 8.5355 6.9129 0.3012 44 1 8.8375 5.6434 2.3960 45 1 7.3939 4.6683 2.0298 46 1 5.1463 7.4847 2.4890 47 1 5.2201 5.7527 2.0845 48 1 6.2578 8.0492 0.3607 49 1 4.7973 7.0797 0.0487 50 1 2.9880 3.5004 -2.4709 51 1 2.1751 3.8627 -0.9296 52 1 2.8829 1.0767 -1.9563 53 1 1.2567 1.8010 -1.9561 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 ZINC001327656161.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 06:12:18 Heat of formation + Delta-G solvation = -134.120921 kcal Electronic energy + Delta-G solvation = -32437.555785 eV Core-core repulsion = 28308.777607 eV Total energy + Delta-G solvation = -4128.778178 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.78 seconds Orbital eigenvalues (eV) -40.65351 -39.39384 -38.21096 -36.34647 -35.50887 -33.65081 -31.92688 -31.05510 -30.82130 -30.42699 -29.86122 -26.77133 -26.45050 -23.76654 -23.62722 -23.08609 -22.72209 -21.47617 -20.77768 -19.75449 -18.92310 -17.26545 -17.19429 -16.69019 -15.96019 -15.93978 -15.87174 -15.43348 -15.25419 -14.73208 -14.51867 -14.37673 -14.21290 -13.94097 -13.68321 -13.36178 -13.18248 -13.05507 -12.75579 -12.49154 -12.40678 -12.39837 -12.22224 -11.95997 -11.75991 -11.51443 -11.36089 -11.19237 -11.14842 -11.02904 -10.90177 -10.82615 -10.63878 -10.48407 -10.42969 -10.29157 -10.02757 -9.69898 -9.56451 -9.47647 -9.15077 -8.77508 -8.50998 -6.85605 -5.75022 -3.00993 3.08534 3.44088 3.47391 3.50963 3.52787 3.59498 3.95805 4.54859 4.60495 4.61103 4.76735 4.90113 4.98513 5.01717 5.04772 5.09575 5.12641 5.15746 5.17815 5.21136 5.24615 5.31427 5.37765 5.43800 5.45343 5.48680 5.60864 5.64888 5.73826 5.75513 5.80948 5.90954 5.95296 5.97423 6.04374 6.07711 6.08876 6.12530 6.26803 6.32175 6.32241 6.39340 6.48866 6.57340 6.89815 7.04920 7.09807 7.26409 7.74644 7.92691 8.44650 8.68693 9.56421 10.13669 10.49766 11.48201 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.007834 B = 0.004378 C = 0.003104 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 3573.346401 B = 6393.469672 C = 9017.324328 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.031 3.969 2 O -0.387 6.387 3 C 0.089 3.911 4 C -0.113 4.113 5 C -0.105 4.105 6 C -0.110 4.110 7 C 0.532 3.468 8 O -0.534 6.534 9 N -0.714 5.714 10 C 0.175 3.825 11 C 0.142 3.858 12 N -0.724 5.724 13 C -0.229 4.229 14 H 0.068 0.932 15 C -0.015 4.015 16 N -0.936 5.936 17 Si 0.904 3.096 18 H -0.281 1.281 19 H -0.293 1.293 20 H -0.293 1.293 21 C -0.155 4.155 22 C 0.062 3.938 23 O -0.386 6.386 24 C 0.067 3.933 25 C -0.163 4.163 26 C -0.093 4.093 27 C -0.140 4.140 28 H 0.083 0.917 29 H 0.039 0.961 30 H 0.041 0.959 31 H 0.059 0.941 32 H 0.070 0.930 33 H 0.076 0.924 34 H 0.067 0.933 35 H 0.071 0.929 36 H 0.103 0.897 37 H 0.393 0.607 38 H 0.050 0.950 39 H 0.019 0.981 40 H 0.381 0.619 41 H 0.252 0.748 42 H 0.089 0.911 43 H 0.085 0.915 44 H 0.093 0.907 45 H 0.046 0.954 46 H 0.088 0.912 47 H 0.047 0.953 48 H 0.076 0.924 49 H 0.093 0.907 50 H 0.077 0.923 51 H 0.066 0.934 52 H 0.074 0.926 53 H 0.064 0.936 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -12.187 -2.511 14.803 19.338 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 -0.065 4.065 2 O -0.306 6.306 3 C 0.031 3.969 4 C -0.151 4.151 5 C -0.143 4.143 6 C -0.131 4.131 7 C 0.319 3.681 8 O -0.410 6.410 9 N -0.365 5.365 10 C 0.089 3.911 11 C 0.014 3.986 12 N -0.368 5.368 13 C -0.360 4.360 14 H 0.086 0.914 15 C -0.210 4.210 16 N -0.586 5.586 17 Si 0.736 3.264 18 H -0.206 1.206 19 H -0.220 1.220 20 H -0.220 1.220 21 C -0.193 4.193 22 C -0.015 4.015 23 O -0.305 6.305 24 C -0.010 4.010 25 C -0.202 4.202 26 C -0.131 4.131 27 C -0.178 4.178 28 H 0.101 0.899 29 H 0.058 0.942 30 H 0.059 0.941 31 H 0.077 0.923 32 H 0.088 0.912 33 H 0.094 0.906 34 H 0.085 0.915 35 H 0.090 0.910 36 H 0.121 0.879 37 H 0.228 0.772 38 H 0.067 0.933 39 H 0.036 0.964 40 H 0.215 0.785 41 H 0.062 0.938 42 H 0.108 0.892 43 H 0.104 0.896 44 H 0.111 0.889 45 H 0.064 0.936 46 H 0.106 0.894 47 H 0.065 0.935 48 H 0.094 0.906 49 H 0.112 0.888 50 H 0.096 0.904 51 H 0.085 0.915 52 H 0.092 0.908 53 H 0.082 0.918 Dipole moment (debyes) X Y Z Total from point charges -12.435 -1.807 14.374 19.092 hybrid contribution 0.311 -0.631 -1.121 1.323 sum -12.124 -2.437 13.254 18.127 Atomic orbital electron populations 1.22760 0.81421 1.02486 0.99871 1.87909 1.19364 1.28201 1.95102 1.22211 0.94804 0.84033 0.95838 1.21558 0.95477 0.97293 1.00781 1.21479 1.01320 0.96278 0.95220 1.21394 0.98767 0.95368 0.97600 1.20264 0.80730 0.90118 0.76998 1.90611 1.62000 1.44096 1.44322 1.45947 1.20770 1.13868 1.55957 1.20542 0.91025 0.82643 0.96892 1.21071 0.97054 0.92004 0.88486 1.42202 1.66897 1.22916 1.04820 1.19272 1.28916 1.04015 0.83824 0.91380 1.24660 1.01544 0.97109 0.97721 1.69651 1.43693 1.10935 1.34277 0.86148 0.77281 0.77163 0.85855 1.20645 1.21989 1.21992 1.22473 0.96778 1.04825 0.95245 1.22628 0.95029 0.90709 0.93164 1.87895 1.24167 1.57639 1.60779 1.22498 0.84041 1.00838 0.93614 1.22547 1.03014 0.99112 0.95494 1.21243 0.94380 0.95639 1.01841 1.22054 1.01510 0.97505 0.96757 0.89857 0.94231 0.94075 0.92264 0.91157 0.90577 0.91474 0.90995 0.87899 0.77239 0.93259 0.96385 0.78495 0.93770 0.89205 0.89633 0.88869 0.93583 0.89421 0.93486 0.90583 0.88827 0.90443 0.91486 0.90777 0.91756 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 0.03 0.26 10.82 101.05 1.09 1.35 16 2 O -0.39 -4.36 10.35 -35.23 -0.36 -4.72 16 3 C 0.09 0.93 2.61 -26.73 -0.07 0.86 16 4 C -0.11 -1.12 5.57 -26.73 -0.15 -1.27 16 5 C -0.11 -1.06 5.10 -26.73 -0.14 -1.20 16 6 C -0.11 -1.46 2.53 -91.77 -0.23 -1.69 16 7 C 0.53 8.59 6.57 -10.99 -0.07 8.52 16 8 O -0.53 -10.30 12.29 5.55 0.07 -10.23 16 9 N -0.71 -10.57 3.68 -47.44 -0.17 -10.75 16 10 C 0.18 2.79 0.32 -131.64 -0.04 2.75 16 11 C 0.14 2.97 4.79 -4.04 -0.02 2.95 16 12 N -0.72 -17.95 5.21 -59.91 -0.31 -18.26 16 13 C -0.23 -6.46 9.99 -15.06 -0.15 -6.61 16 14 H 0.07 1.93 7.83 -52.49 -0.41 1.52 16 15 C -0.02 -0.43 5.50 -17.43 -0.10 -0.53 16 16 N -0.94 -27.74 13.06 55.49 0.72 -27.02 16 17 Si 0.90 22.75 29.55 -169.99 -5.02 17.72 16 18 H -0.28 -6.94 7.11 56.52 0.40 -6.54 16 19 H -0.29 -7.37 7.11 56.52 0.40 -6.97 16 20 H -0.29 -7.41 7.11 56.52 0.40 -7.01 16 21 C -0.16 -2.25 4.84 -26.50 -0.13 -2.37 16 22 C 0.06 0.74 6.67 37.30 0.25 0.99 16 23 O -0.39 -5.14 10.77 -35.23 -0.38 -5.52 16 24 C 0.07 0.83 6.68 37.20 0.25 1.07 16 25 C -0.16 -2.34 4.82 -26.59 -0.13 -2.47 16 26 C -0.09 -1.22 4.49 -26.74 -0.12 -1.34 16 27 C -0.14 -1.61 5.54 -26.73 -0.15 -1.76 16 28 H 0.08 0.57 8.14 -51.93 -0.42 0.14 16 29 H 0.04 0.28 8.08 -51.93 -0.42 -0.14 16 30 H 0.04 0.32 7.87 -51.93 -0.41 -0.09 16 31 H 0.06 0.57 7.79 -51.93 -0.40 0.17 16 32 H 0.07 0.63 8.14 -51.93 -0.42 0.20 16 33 H 0.08 0.81 8.14 -51.93 -0.42 0.38 16 34 H 0.07 0.65 8.14 -51.93 -0.42 0.23 16 35 H 0.07 0.64 7.45 -51.93 -0.39 0.26 16 36 H 0.10 1.49 8.14 -51.93 -0.42 1.07 16 37 H 0.39 5.05 6.68 -40.82 -0.27 4.78 16 38 H 0.05 1.15 6.26 -51.93 -0.32 0.83 16 39 H 0.02 0.39 8.14 -51.93 -0.42 -0.03 16 40 H 0.38 9.63 6.51 -40.82 -0.27 9.37 16 41 H 0.25 7.29 8.31 -40.82 -0.34 6.95 16 42 H 0.09 1.44 7.22 -51.93 -0.37 1.06 16 43 H 0.09 1.27 8.14 -51.93 -0.42 0.85 16 44 H 0.09 0.98 8.14 -51.93 -0.42 0.56 16 45 H 0.05 0.49 7.02 -51.93 -0.36 0.13 16 46 H 0.09 0.95 8.14 -51.93 -0.42 0.53 16 47 H 0.05 0.56 7.75 -51.93 -0.40 0.16 16 48 H 0.08 1.08 8.14 -51.93 -0.42 0.66 16 49 H 0.09 1.48 6.26 -51.93 -0.32 1.16 16 50 H 0.08 1.19 8.10 -51.93 -0.42 0.77 16 51 H 0.07 0.86 8.10 -51.93 -0.42 0.44 16 52 H 0.07 0.92 8.14 -51.93 -0.42 0.50 16 53 H 0.06 0.69 7.87 -51.93 -0.41 0.28 16 LS Contribution 401.71 15.07 6.05 6.05 Total: -1.00 -32.57 401.71 -8.70 -41.28 By element: Atomic # 1 Polarization: 21.59 SS G_CDS: -9.40 Total: 12.20 kcal Atomic # 6 Polarization: -0.86 SS G_CDS: 0.10 Total: -0.76 kcal Atomic # 7 Polarization: -56.26 SS G_CDS: 0.24 Total: -56.03 kcal Atomic # 8 Polarization: -19.80 SS G_CDS: -0.68 Total: -20.48 kcal Atomic # 14 Polarization: 22.75 SS G_CDS: -5.02 Total: 17.72 kcal Total LS contribution 6.05 Total: 6.05 kcal Total: -32.57 -8.70 -41.28 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. ZINC001327656161.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 -92.841 kcal (2) G-P(sol) polarization free energy of solvation -32.575 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -125.416 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.705 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -41.279 kcal (6) G-S(sol) free energy of system = (1) + (5) -134.121 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.78 seconds