Wall clock time and date at job start Tue Mar 31 2020 11:09:53 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 1.53001 * 1 3 3 H 1.09008 * 109.45410 * 2 1 4 4 C 1.53033 * 109.46123 * 119.96946 * 2 1 3 5 5 C 1.53122 * 109.27556 * 179.19458 * 4 2 1 6 6 C 1.53113 * 109.16317 * 302.34542 * 5 4 2 7 7 C 1.53043 * 109.27814 * 57.65663 * 6 5 4 8 8 N 1.46847 * 109.52199 * 300.82136 * 7 6 5 9 9 C 1.46901 * 110.99936 * 185.83857 * 8 7 6 10 10 C 1.52995 * 109.47277 * 66.27947 * 9 8 7 11 11 C 1.52995 * 109.47034 * 179.97438 * 10 9 8 12 12 N 1.46503 * 109.46909 * 180.02562 * 11 10 9 13 13 C 1.34783 * 120.00151 * 179.97438 * 12 11 10 14 14 O 1.21280 * 119.99447 * 0.02562 * 13 12 11 15 15 C 1.50698 * 120.00330 * 179.97438 * 13 12 11 16 16 C 1.52995 * 109.47088 * 180.02562 * 15 13 12 17 17 C 1.53001 * 109.46826 * 180.02562 * 16 15 13 18 18 C 1.53004 * 109.46984 * 180.02562 * 17 16 15 19 19 C 1.50698 * 109.47246 * 179.97438 * 18 17 16 20 20 H 1.07997 * 119.99827 * 0.02562 * 19 18 17 21 21 C 1.37876 * 120.00213 * 180.02562 * 19 18 17 22 22 N 1.31518 * 120.00139 * 180.02562 * 21 19 18 23 23 Si 1.86804 * 119.99826 * 359.97438 * 21 19 18 24 24 H 1.48501 * 109.46963 * 90.00310 * 23 21 19 25 25 H 1.48502 * 109.46992 * 209.99990 * 23 21 19 26 26 H 1.48496 * 109.47165 * 330.00494 * 23 21 19 27 27 H 1.09000 * 109.47020 * 172.46867 * 1 2 3 28 28 H 1.09001 * 109.47244 * 292.47627 * 1 2 3 29 29 H 1.09006 * 109.46905 * 52.47095 * 1 2 3 30 30 H 1.09002 * 109.50088 * 59.25978 * 4 2 1 31 31 H 1.09000 * 109.53911 * 299.15694 * 4 2 1 32 32 H 1.09005 * 109.51773 * 182.44088 * 5 4 2 33 33 H 1.08994 * 109.52445 * 62.25346 * 5 4 2 34 34 H 1.09009 * 109.50560 * 297.71874 * 6 5 4 35 35 H 1.08995 * 109.53902 * 177.61536 * 6 5 4 36 36 H 1.09002 * 109.46228 * 180.80504 * 7 6 5 37 37 H 1.09000 * 109.45254 * 60.83042 * 7 6 5 38 38 H 1.09003 * 109.47060 * 306.27867 * 9 8 7 39 39 H 1.09006 * 109.46625 * 186.28209 * 9 8 7 40 40 H 1.09003 * 109.47140 * 59.99969 * 10 9 8 41 41 H 1.08996 * 109.47138 * 300.00120 * 10 9 8 42 42 H 1.08994 * 109.47094 * 60.00289 * 11 10 9 43 43 H 1.08996 * 109.47182 * 299.99569 * 11 10 9 44 44 H 0.97002 * 120.00234 * 0.02562 * 12 11 10 45 45 H 1.09003 * 109.46977 * 60.00244 * 15 13 12 46 46 H 1.08996 * 109.47247 * 300.00427 * 15 13 12 47 47 H 1.08996 * 109.47341 * 300.00267 * 16 15 13 48 48 H 1.09003 * 109.47097 * 60.00214 * 16 15 13 49 49 H 1.09006 * 109.47443 * 299.99660 * 17 16 15 50 50 H 1.08994 * 109.47216 * 60.00157 * 17 16 15 51 51 H 1.08996 * 109.47222 * 299.99918 * 18 17 16 52 52 H 1.09003 * 109.47058 * 59.99768 * 18 17 16 53 53 H 0.96995 * 119.99913 * 179.97438 * 22 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 6 1.5300 0.0000 0.0000 3 1 1.8931 1.0278 0.0000 4 6 2.0399 -0.7208 1.2500 5 6 3.5709 -0.7359 1.2356 6 6 4.0548 -1.4187 -0.0466 7 6 3.4865 -0.6777 -1.2591 8 7 2.0193 -0.6917 -1.1994 9 6 1.4373 -0.1106 -2.4166 10 6 1.7565 -1.0086 -3.6135 11 6 1.1498 -0.4036 -4.8810 12 7 1.4549 -1.2638 -6.0270 13 6 1.0179 -0.9280 -7.2570 14 8 0.3726 0.0866 -7.4151 15 6 1.3322 -1.8125 -8.4359 16 6 0.7254 -1.2076 -9.7034 17 6 1.0441 -2.1061 -10.9002 18 6 0.4378 -1.5008 -12.1680 19 6 0.7521 -2.3854 -13.3469 20 1 1.3264 -3.2890 -13.2059 21 6 0.3065 -2.0410 -14.6053 22 7 0.5803 -2.8132 -15.6341 23 14 -0.6876 -0.4783 -14.8489 24 1 0.2308 0.6529 -15.1358 25 1 -1.6219 -0.6586 -15.9890 26 1 -1.4617 -0.1868 -13.6157 27 1 -0.3633 -1.0188 -0.1347 28 1 -0.3634 0.3929 0.9496 29 1 -0.3633 0.6261 -0.8150 30 1 1.6659 -1.7446 1.2576 31 1 1.6894 -0.1987 2.1403 32 1 3.9379 -1.2862 2.1021 33 1 3.9457 0.2871 1.2671 34 1 3.7124 -2.4536 -0.0594 35 1 5.1439 -1.3952 -0.0835 36 1 3.8175 -1.1699 -2.1736 37 1 3.8404 0.3533 -1.2530 38 1 1.8589 0.8807 -2.5834 39 1 0.3564 -0.0308 -2.3001 40 1 1.3348 -1.9998 -3.4466 41 1 2.8373 -1.0883 -3.7298 42 1 1.5710 0.5877 -5.0481 43 1 0.0690 -0.3243 -4.7644 44 1 1.9707 -2.0755 -5.9004 45 1 0.9114 -2.8040 -8.2686 46 1 2.4130 -1.8916 -8.5529 47 1 -0.3553 -1.1282 -9.5867 48 1 1.1467 -0.2163 -9.8705 49 1 2.1249 -2.1858 -11.0172 50 1 0.6226 -3.0972 -10.7329 51 1 -0.6430 -1.4207 -12.0514 52 1 0.8597 -0.5098 -12.3351 53 1 0.2665 -2.5711 -16.5194 RHF calculation, no. of doubly occupied orbitals= 61 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 ZINC000588256396.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 11:09:53 Heat of formation + Delta-G solvation = -77.145774 kcal Electronic energy + Delta-G solvation = -24916.522097 eV Core-core repulsion = 21400.267453 eV Total energy + Delta-G solvation = -3516.254645 eV No. of doubly occupied orbitals = 61 Molecular weight (most abundant/longest-lived isotopes) = 310.236 amu Computer time = 0.75 seconds Orbital eigenvalues (eV) -40.00693 -39.58844 -36.15531 -34.97310 -34.19157 -33.08754 -32.56219 -31.18464 -29.93366 -27.63712 -26.55349 -25.35741 -23.80480 -22.12182 -21.73388 -21.51416 -20.15334 -20.02990 -19.99423 -16.91838 -16.73141 -16.45997 -16.31237 -15.86088 -15.59688 -15.32921 -14.90056 -14.63598 -14.44922 -14.17261 -13.90145 -13.81934 -13.44906 -13.00757 -12.63818 -12.60584 -12.50974 -12.35698 -12.28752 -12.16929 -11.95623 -11.85519 -11.72330 -11.48582 -11.36067 -11.14588 -11.08216 -10.71782 -10.70731 -10.63057 -10.51096 -9.94815 -9.79157 -9.62243 -9.39055 -9.19070 -9.09626 -8.78154 -8.47453 -5.98757 -3.96097 2.70912 3.01166 3.36839 3.42490 3.43776 3.50136 4.24858 4.28270 4.35791 4.51573 4.51893 4.62129 4.64613 4.74396 4.85427 4.89877 4.95560 5.00857 5.07859 5.10960 5.17284 5.27120 5.30281 5.31496 5.33854 5.36827 5.38968 5.41651 5.45668 5.51749 5.64927 5.66135 5.73075 5.74815 5.77086 5.85453 5.92420 6.06361 6.18608 6.29408 6.44999 6.63325 6.66475 6.71419 6.85452 7.01952 7.40621 7.41989 7.53586 7.86883 8.24521 8.60389 9.06329 9.64762 11.14763 Molecular weight = 310.24amu Principal moments of inertia in cm(-1) A = 0.040054 B = 0.001563 C = 0.001526 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 698.894814 B =17907.865975 C =18350.082666 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.151 4.151 2 C 0.081 3.919 3 H 0.039 0.961 4 C -0.112 4.112 5 C -0.123 4.123 6 C -0.117 4.117 7 C 0.051 3.949 8 N -0.533 5.533 9 C 0.053 3.947 10 C -0.127 4.127 11 C 0.120 3.880 12 N -0.738 5.738 13 C 0.511 3.489 14 O -0.538 6.538 15 C -0.139 4.139 16 C -0.106 4.106 17 C -0.103 4.103 18 C -0.016 4.016 19 C -0.519 4.519 20 H 0.071 0.929 21 C 0.065 3.935 22 N -0.906 5.906 23 Si 0.879 3.121 24 H -0.277 1.277 25 H -0.288 1.288 26 H -0.264 1.264 27 H 0.066 0.934 28 H 0.060 0.940 29 H 0.057 0.943 30 H 0.072 0.928 31 H 0.065 0.935 32 H 0.064 0.936 33 H 0.057 0.943 34 H 0.071 0.929 35 H 0.066 0.934 36 H 0.078 0.922 37 H 0.031 0.969 38 H 0.036 0.964 39 H 0.084 0.916 40 H 0.078 0.922 41 H 0.069 0.931 42 H 0.063 0.937 43 H 0.066 0.934 44 H 0.400 0.600 45 H 0.092 0.908 46 H 0.092 0.908 47 H 0.063 0.937 48 H 0.063 0.937 49 H 0.052 0.948 50 H 0.053 0.947 51 H 0.016 0.984 52 H 0.011 0.989 53 H 0.262 0.738 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 5.566 3.817 38.538 39.125 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 -0.208 4.208 2 C -0.027 4.027 3 H 0.057 0.943 4 C -0.149 4.149 5 C -0.160 4.160 6 C -0.155 4.155 7 C -0.076 4.076 8 N -0.258 5.258 9 C -0.075 4.075 10 C -0.165 4.165 11 C -0.005 4.005 12 N -0.392 5.392 13 C 0.299 3.701 14 O -0.415 6.415 15 C -0.179 4.179 16 C -0.144 4.144 17 C -0.140 4.140 18 C -0.053 4.053 19 C -0.557 4.557 20 H 0.089 0.911 21 C -0.136 4.136 22 N -0.546 5.546 23 Si 0.707 3.293 24 H -0.203 1.203 25 H -0.215 1.215 26 H -0.189 1.189 27 H 0.085 0.915 28 H 0.079 0.921 29 H 0.076 0.924 30 H 0.090 0.910 31 H 0.084 0.916 32 H 0.082 0.918 33 H 0.076 0.924 34 H 0.090 0.910 35 H 0.084 0.916 36 H 0.097 0.903 37 H 0.050 0.950 38 H 0.054 0.946 39 H 0.103 0.897 40 H 0.097 0.903 41 H 0.087 0.913 42 H 0.082 0.918 43 H 0.084 0.916 44 H 0.234 0.766 45 H 0.110 0.890 46 H 0.110 0.890 47 H 0.082 0.918 48 H 0.082 0.918 49 H 0.071 0.929 50 H 0.072 0.928 51 H 0.034 0.966 52 H 0.029 0.971 53 H 0.072 0.928 Dipole moment (debyes) X Y Z Total from point charges 4.907 4.070 38.267 38.795 hybrid contribution 0.088 1.245 -0.243 1.271 sum 4.994 5.315 38.024 38.717 Atomic orbital electron populations 1.21947 0.94232 1.02815 1.01805 1.21605 0.95420 0.95345 0.90311 0.94327 1.21634 0.95443 1.01535 0.96323 1.21592 0.95866 1.00633 0.97953 1.21586 0.99724 1.00309 0.93889 1.22159 0.87324 0.98934 0.99216 1.61944 1.07075 1.55094 1.01672 1.22079 1.00811 0.95650 0.88974 1.21784 1.01457 1.00455 0.92817 1.21222 1.00540 0.94170 0.84524 1.46075 1.57855 1.27651 1.07570 1.21088 0.78453 0.86507 0.84068 1.90698 1.39022 1.26601 1.85134 1.21772 1.03238 0.99424 0.93445 1.21479 1.00961 0.99676 0.92306 1.21481 1.00453 0.98045 0.94068 1.19580 0.95996 0.96300 0.93439 1.21194 1.34562 1.09049 0.90937 0.91105 1.25039 0.95786 0.96737 0.96017 1.69922 1.46879 1.38157 0.99602 0.86776 0.80623 0.83991 0.77922 1.20336 1.21454 1.18900 0.91470 0.92081 0.92424 0.90972 0.91615 0.91757 0.92392 0.91011 0.91574 0.90329 0.95030 0.94623 0.89735 0.90288 0.91266 0.91828 0.91590 0.76580 0.88976 0.89018 0.91816 0.91842 0.92874 0.92825 0.96613 0.97065 0.92838 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 -0.15 -0.80 8.53 37.16 0.32 -0.49 16 2 C 0.08 0.48 2.44 -67.72 -0.17 0.32 16 3 H 0.04 0.25 8.14 -51.92 -0.42 -0.17 16 4 C -0.11 -0.58 5.37 -26.65 -0.14 -0.72 16 5 C -0.12 -0.60 6.00 -26.61 -0.16 -0.76 16 6 C -0.12 -0.61 6.09 -26.65 -0.16 -0.77 16 7 C 0.05 0.31 5.30 -3.83 -0.02 0.29 16 8 N -0.53 -3.43 4.49 -226.68 -1.02 -4.45 16 9 C 0.05 0.34 4.69 -3.83 -0.02 0.32 16 10 C -0.13 -0.79 5.27 -26.74 -0.14 -0.93 16 11 C 0.12 1.05 5.67 -4.04 -0.02 1.02 16 12 N -0.74 -7.05 5.56 -60.30 -0.34 -7.39 16 13 C 0.51 6.91 7.83 -10.98 -0.09 6.83 16 14 O -0.54 -9.63 15.98 5.56 0.09 -9.54 16 15 C -0.14 -1.77 5.70 -27.89 -0.16 -1.93 16 16 C -0.11 -1.82 4.50 -26.73 -0.12 -1.94 16 17 C -0.10 -2.05 5.15 -26.73 -0.14 -2.19 16 18 C -0.02 -0.39 4.04 -27.88 -0.11 -0.50 16 19 C -0.52 -15.25 9.66 -34.44 -0.33 -15.58 16 20 H 0.07 2.21 7.99 -52.49 -0.42 1.79 16 21 C 0.06 1.95 5.47 -17.82 -0.10 1.85 16 22 N -0.91 -28.56 13.96 55.43 0.77 -27.79 16 23 Si 0.88 22.54 27.47 -169.99 -4.67 17.87 16 24 H -0.28 -6.98 7.11 56.52 0.40 -6.58 16 25 H -0.29 -7.28 7.11 56.52 0.40 -6.87 16 26 H -0.26 -6.59 6.54 56.52 0.37 -6.22 16 27 H 0.07 0.39 8.14 -51.93 -0.42 -0.03 16 28 H 0.06 0.27 8.13 -51.93 -0.42 -0.15 16 29 H 0.06 0.31 6.56 -51.93 -0.34 -0.03 16 30 H 0.07 0.42 8.14 -51.93 -0.42 -0.01 16 31 H 0.07 0.29 8.14 -51.93 -0.42 -0.14 16 32 H 0.06 0.28 8.14 -51.93 -0.42 -0.15 16 33 H 0.06 0.29 8.14 -51.93 -0.42 -0.13 16 34 H 0.07 0.41 8.14 -51.92 -0.42 -0.01 16 35 H 0.07 0.29 8.14 -51.93 -0.42 -0.13 16 36 H 0.08 0.45 6.23 -51.93 -0.32 0.12 16 37 H 0.03 0.20 8.14 -51.93 -0.42 -0.22 16 38 H 0.04 0.24 8.12 -51.93 -0.42 -0.18 16 39 H 0.08 0.53 5.80 -51.93 -0.30 0.23 16 40 H 0.08 0.50 8.14 -51.93 -0.42 0.08 16 41 H 0.07 0.41 6.44 -51.93 -0.33 0.07 16 42 H 0.06 0.62 8.14 -51.93 -0.42 0.20 16 43 H 0.07 0.64 8.14 -51.93 -0.42 0.22 16 44 H 0.40 2.67 8.47 -40.82 -0.35 2.33 16 45 H 0.09 1.01 8.14 -51.93 -0.42 0.59 16 46 H 0.09 1.01 8.14 -51.93 -0.42 0.58 16 47 H 0.06 1.15 8.10 -51.93 -0.42 0.73 16 48 H 0.06 1.14 8.10 -51.93 -0.42 0.72 16 49 H 0.05 1.03 8.14 -51.93 -0.42 0.61 16 50 H 0.05 1.04 8.14 -51.93 -0.42 0.62 16 51 H 0.02 0.39 7.20 -51.93 -0.37 0.02 16 52 H 0.01 0.28 7.57 -51.93 -0.39 -0.12 16 53 H 0.26 7.72 8.31 -40.82 -0.34 7.38 16 LS Contribution 407.22 15.07 6.14 6.14 Total: -1.00 -34.17 407.22 -11.03 -45.20 By element: Atomic # 1 Polarization: 5.60 SS G_CDS: -10.45 Total: -4.85 kcal Atomic # 6 Polarization: -13.63 SS G_CDS: -1.56 Total: -15.20 kcal Atomic # 7 Polarization: -39.05 SS G_CDS: -0.58 Total: -39.63 kcal Atomic # 8 Polarization: -9.63 SS G_CDS: 0.09 Total: -9.54 kcal Atomic # 14 Polarization: 22.54 SS G_CDS: -4.67 Total: 17.87 kcal Total LS contribution 6.14 Total: 6.14 kcal Total: -34.17 -11.03 -45.20 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. ZINC000588256396.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 -31.946 kcal (2) G-P(sol) polarization free energy of solvation -34.168 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -66.113 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -11.033 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -45.200 kcal (6) G-S(sol) free energy of system = (1) + (5) -77.146 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.75 seconds