Wall clock time and date at job start Sat Apr 11 2020 06:12:20 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 1.53002 * 1 3 3 N 1.46503 * 109.46933 * 2 1 4 4 C 1.46497 * 120.00170 * 269.99955 * 3 2 1 5 5 C 1.52998 * 109.46821 * 293.09973 * 4 3 2 6 6 C 1.34780 * 119.99813 * 89.99744 * 3 2 1 7 7 O 1.21585 * 120.00391 * 340.30854 * 6 3 2 8 8 N 1.34777 * 119.99852 * 160.30962 * 6 3 2 9 9 C 1.46961 * 120.59638 * 164.09602 * 8 6 3 10 10 C 1.53379 * 108.63382 * 235.24982 * 9 8 6 11 11 N 1.46966 * 108.63317 * 310.57054 * 10 9 8 12 12 C 1.34771 * 120.59390 * 235.20978 * 11 10 9 13 13 O 1.21584 * 120.00357 * 5.26020 * 12 11 10 14 14 N 1.34780 * 119.99877 * 184.99688 * 12 11 10 15 15 C 1.46496 * 120.00168 * 175.28400 * 14 12 11 16 16 C 1.52998 * 109.47308 * 179.97438 * 15 14 12 17 17 C 1.52997 * 109.47309 * 180.02562 * 16 15 14 18 18 C 1.50702 * 109.47428 * 180.02562 * 17 16 15 19 19 H 1.08000 * 119.99464 * 359.97438 * 18 17 16 20 20 C 1.37872 * 120.00166 * 180.02562 * 18 17 16 21 21 N 1.31516 * 120.00272 * 359.97438 * 20 18 17 22 22 Si 1.86802 * 120.00074 * 179.97438 * 20 18 17 23 23 H 1.48498 * 109.46829 * 59.99784 * 22 20 18 24 24 H 1.48496 * 109.47382 * 179.97438 * 22 20 18 25 25 H 1.48503 * 109.47289 * 300.00224 * 22 20 18 26 26 C 1.46968 * 118.80681 * 55.48340 * 11 10 9 27 27 C 1.46968 * 120.59119 * 344.11712 * 8 6 3 28 28 H 1.08997 * 109.47441 * 300.00065 * 1 2 3 29 29 H 1.08995 * 109.47209 * 60.00066 * 1 2 3 30 30 H 1.09000 * 109.46822 * 179.97438 * 1 2 3 31 31 H 1.08997 * 109.47441 * 239.99935 * 2 1 3 32 32 H 1.08992 * 109.46853 * 119.99562 * 2 1 3 33 33 H 1.09006 * 109.46881 * 53.09364 * 4 3 2 34 34 H 1.08999 * 109.47547 * 173.09577 * 4 3 2 35 35 H 1.08997 * 109.47122 * 299.99377 * 5 4 3 36 36 H 1.09004 * 109.47350 * 59.99987 * 5 4 3 37 37 H 1.09007 * 109.46797 * 180.02562 * 5 4 3 38 38 H 1.08994 * 109.61259 * 115.50454 * 9 8 6 39 39 H 1.09006 * 109.75113 * 355.07441 * 9 8 6 40 40 H 1.08999 * 109.60434 * 190.83222 * 10 9 8 41 41 H 1.08996 * 109.75289 * 70.40184 * 10 9 8 42 42 H 0.97001 * 119.99904 * 355.28624 * 14 12 11 43 43 H 1.09004 * 109.47192 * 299.99718 * 15 14 12 44 44 H 1.09003 * 109.47110 * 59.99459 * 15 14 12 45 45 H 1.09001 * 109.47238 * 299.99739 * 16 15 14 46 46 H 1.09003 * 109.47443 * 59.99704 * 16 15 14 47 47 H 1.09004 * 109.47145 * 299.99730 * 17 16 15 48 48 H 1.09002 * 109.47660 * 59.99618 * 17 16 15 49 49 H 0.96995 * 120.00668 * 180.02562 * 21 20 18 50 50 H 1.08999 * 109.61209 * 64.26440 * 26 11 10 51 51 H 1.09007 * 109.60115 * 184.77567 * 26 11 10 52 52 H 1.09005 * 109.61055 * 244.49479 * 27 8 6 53 53 H 1.08997 * 109.61364 * 4.83311 * 27 8 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 6 1.5300 0.0000 0.0000 3 7 2.0183 1.3813 0.0000 4 6 2.2625 2.0719 -1.2687 5 6 3.4351 1.4080 -1.9933 6 6 2.2429 2.0166 1.1673 7 8 1.7235 1.6120 2.1894 8 7 3.0432 3.1005 1.2014 9 6 3.0303 4.0036 2.3607 10 6 2.7433 5.4279 1.8693 11 7 3.6442 5.7281 0.7477 12 6 4.4439 6.8124 0.7815 13 8 4.4952 7.4989 1.7836 14 7 5.1907 7.1327 -0.2938 15 6 5.9804 8.3666 -0.2959 16 6 6.7298 8.4902 -1.6240 17 6 7.5551 9.7785 -1.6260 18 6 8.2928 9.9006 -2.9344 19 1 8.1842 9.1355 -3.6889 20 6 9.1071 10.9884 -3.1679 21 7 9.2397 11.9198 -2.2489 22 14 10.0221 11.1394 -4.7894 23 1 9.0453 11.1759 -5.9073 24 1 10.8230 12.3898 -4.7914 25 1 10.9249 9.9725 -4.9589 26 6 3.6529 4.8280 -0.4141 27 6 3.9440 3.4007 0.0797 28 1 -0.3634 0.5138 0.8899 29 1 -0.3633 0.5138 -0.8899 30 1 -0.3633 -1.0277 -0.0005 31 1 1.8934 -0.5138 -0.8899 32 1 1.8933 -0.5137 0.8900 33 1 1.3701 2.0132 -1.8919 34 1 2.5010 3.1174 -1.0733 35 1 4.3274 1.4667 -1.3701 36 1 3.1965 0.3625 -2.1887 37 1 3.6171 1.9221 -2.9371 38 1 4.0006 3.9763 2.8565 39 1 2.2534 3.6943 3.0600 40 1 2.9184 6.1363 2.6789 41 1 1.7079 5.5011 1.5367 42 1 5.2053 6.5462 -1.0663 43 1 5.3172 9.2226 -0.1716 44 1 6.6976 8.3404 0.5245 45 1 7.3931 7.6342 -1.7480 46 1 6.0130 8.5162 -2.4448 47 1 6.8921 10.6348 -1.5019 48 1 8.2720 9.7521 -0.8054 49 1 9.8123 12.6853 -2.4132 50 1 2.6808 4.8566 -0.9064 51 1 4.4290 5.1405 -1.1129 52 1 4.9794 3.3305 0.4131 53 1 3.7711 2.6903 -0.7287 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 ZINC000352361706.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 06:12:20 Heat of formation + Delta-G solvation = 0.931762 kcal Electronic energy + Delta-G solvation = -30701.916118 eV Core-core repulsion = 26611.287014 eV Total energy + Delta-G solvation = -4090.629103 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.226 amu Computer time = 0.72 seconds Orbital eigenvalues (eV) -41.51994 -40.03243 -37.52887 -37.05504 -35.50074 -34.38382 -33.44301 -32.81596 -31.43250 -30.83103 -30.31314 -27.80496 -26.44095 -24.55452 -24.24959 -23.65420 -23.06574 -21.94668 -20.68541 -20.45101 -19.08945 -18.32237 -17.38935 -17.25145 -16.66565 -16.22658 -16.06231 -15.92992 -15.39945 -15.23590 -14.81851 -14.61407 -14.45503 -14.37543 -13.99754 -13.94682 -13.84859 -13.39607 -13.14324 -12.89198 -12.64297 -12.49075 -12.29353 -12.21130 -12.00806 -11.83478 -11.74204 -11.69079 -11.55210 -11.37496 -11.17353 -10.90839 -10.73606 -10.64310 -10.31580 -10.11504 -9.89138 -9.52298 -9.47020 -9.16128 -9.12222 -8.84713 -8.41067 -8.38825 -6.03480 -4.06934 2.08735 2.59184 2.69963 3.22364 3.26144 3.29960 3.35169 3.36544 3.81498 4.18496 4.32648 4.41559 4.43992 4.48465 4.60830 4.66376 4.76064 4.78785 4.89614 4.98391 5.01876 5.03001 5.10895 5.15293 5.20780 5.32066 5.35964 5.41218 5.47969 5.50865 5.59777 5.65089 5.67334 5.77625 5.86534 6.00040 6.14291 6.21887 6.23216 6.46868 6.51186 6.58366 6.72714 6.93906 6.98630 7.45159 7.61226 7.74129 7.94860 7.97163 8.16552 8.35475 8.63973 8.99429 9.57173 11.07668 Molecular weight = 340.23amu Principal moments of inertia in cm(-1) A = 0.018443 B = 0.002003 C = 0.001836 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1517.807717 B =13978.563174 C =15245.362217 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.168 4.168 2 C 0.132 3.868 3 N -0.633 5.633 4 C 0.075 3.925 5 C -0.187 4.187 6 C 0.713 3.287 7 O -0.581 6.581 8 N -0.626 5.626 9 C 0.116 3.884 10 C 0.115 3.885 11 N -0.633 5.633 12 C 0.705 3.295 13 O -0.587 6.587 14 N -0.741 5.741 15 C 0.133 3.867 16 C -0.120 4.120 17 C 0.024 3.976 18 C -0.523 4.523 19 H 0.055 0.945 20 C 0.057 3.943 21 N -0.893 5.893 22 Si 0.894 3.106 23 H -0.277 1.277 24 H -0.287 1.287 25 H -0.277 1.277 26 C 0.094 3.906 27 C 0.036 3.964 28 H 0.064 0.936 29 H 0.053 0.947 30 H 0.063 0.937 31 H 0.075 0.925 32 H 0.077 0.923 33 H 0.073 0.927 34 H 0.106 0.894 35 H 0.070 0.930 36 H 0.067 0.933 37 H 0.077 0.923 38 H 0.072 0.928 39 H 0.102 0.898 40 H 0.108 0.892 41 H 0.067 0.933 42 H 0.392 0.608 43 H 0.062 0.938 44 H 0.063 0.937 45 H 0.053 0.947 46 H 0.053 0.947 47 H 0.019 0.981 48 H 0.019 0.981 49 H 0.262 0.738 50 H 0.074 0.926 51 H 0.093 0.907 52 H 0.073 0.927 53 H 0.144 0.856 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -16.818 -25.276 1.266 30.386 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 0.009 3.991 3 N -0.371 5.371 4 C -0.047 4.047 5 C -0.245 4.245 6 C 0.416 3.584 7 O -0.457 6.457 8 N -0.363 5.363 9 C -0.008 4.008 10 C -0.009 4.009 11 N -0.372 5.372 12 C 0.406 3.594 13 O -0.464 6.464 14 N -0.397 5.397 15 C 0.010 3.990 16 C -0.158 4.158 17 C -0.014 4.014 18 C -0.562 4.562 19 H 0.073 0.927 20 C -0.145 4.145 21 N -0.532 5.532 22 Si 0.721 3.279 23 H -0.203 1.203 24 H -0.213 1.213 25 H -0.203 1.203 26 C -0.031 4.031 27 C -0.087 4.087 28 H 0.083 0.917 29 H 0.072 0.928 30 H 0.082 0.918 31 H 0.094 0.906 32 H 0.096 0.904 33 H 0.092 0.908 34 H 0.124 0.876 35 H 0.089 0.911 36 H 0.086 0.914 37 H 0.096 0.904 38 H 0.091 0.909 39 H 0.120 0.880 40 H 0.126 0.874 41 H 0.085 0.915 42 H 0.227 0.773 43 H 0.081 0.919 44 H 0.082 0.918 45 H 0.072 0.928 46 H 0.072 0.928 47 H 0.038 0.962 48 H 0.038 0.962 49 H 0.071 0.929 50 H 0.092 0.908 51 H 0.111 0.889 52 H 0.091 0.909 53 H 0.161 0.839 Dipole moment (debyes) X Y Z Total from point charges -16.967 -24.773 2.629 30.141 hybrid contribution 0.657 -0.059 -1.472 1.613 sum -16.310 -24.832 1.157 29.732 Atomic orbital electron populations 1.22135 0.95976 1.01982 1.02562 1.21259 0.94474 0.80786 1.02587 1.47141 1.70420 1.15178 1.04378 1.22289 0.98719 0.98464 0.85242 1.22431 0.98457 1.02385 1.01216 1.15891 0.79181 0.79736 0.83570 1.90905 1.55041 1.66697 1.33093 1.47165 1.41560 1.27087 1.20523 1.21933 1.03658 0.87747 0.87425 1.21879 0.92577 0.96209 0.90226 1.47169 1.43682 1.26331 1.20022 1.15913 0.78884 0.80647 0.83933 1.90918 1.70120 1.53487 1.31904 1.45559 1.49739 1.26836 1.17592 1.21542 0.93585 0.83878 0.99953 1.21887 0.98460 1.01863 0.93569 1.19024 0.94378 0.90572 0.97391 1.21151 1.27129 1.06622 1.01265 0.92723 1.25032 0.96789 0.95850 0.96802 1.69952 1.38740 1.10739 1.33743 0.86640 0.79837 0.77369 0.84020 1.20269 1.21274 1.20262 1.22149 1.02610 0.89590 0.88717 1.23666 0.94666 0.98110 0.92244 0.91731 0.92806 0.91842 0.90642 0.90408 0.90831 0.87605 0.91125 0.91369 0.90424 0.90931 0.87978 0.87403 0.91466 0.77270 0.91947 0.91816 0.92797 0.92803 0.96238 0.96216 0.92851 0.90783 0.88939 0.90903 0.83896 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 12. 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 -0.17 -1.05 10.24 37.16 0.38 -0.67 16 2 C 0.13 0.84 5.91 -4.04 -0.02 0.81 16 3 N -0.63 -4.66 2.52 -192.81 -0.49 -5.15 16 4 C 0.08 0.34 5.56 -4.04 -0.02 0.32 16 5 C -0.19 -0.58 9.13 37.16 0.34 -0.24 16 6 C 0.71 7.48 7.82 -86.92 -0.68 6.80 16 7 O -0.58 -8.18 15.70 5.29 0.08 -8.10 16 8 N -0.63 -5.70 2.86 -177.93 -0.51 -6.21 16 9 C 0.12 1.12 6.54 -3.59 -0.02 1.09 16 10 C 0.12 1.16 6.60 -3.59 -0.02 1.14 16 11 N -0.63 -6.90 2.94 -177.93 -0.52 -7.43 16 12 C 0.70 10.51 8.29 -86.92 -0.72 9.79 16 13 O -0.59 -11.22 15.76 5.29 0.08 -11.14 16 14 N -0.74 -10.33 5.47 -65.23 -0.36 -10.68 16 15 C 0.13 2.31 5.68 -4.05 -0.02 2.28 16 16 C -0.12 -2.26 5.27 -26.73 -0.14 -2.40 16 17 C 0.02 0.60 4.97 -27.88 -0.14 0.46 16 18 C -0.52 -14.33 9.11 -34.44 -0.31 -14.65 16 19 H 0.05 1.43 7.74 -52.49 -0.41 1.02 16 20 C 0.06 1.60 5.46 -17.82 -0.10 1.50 16 21 N -0.89 -26.50 13.29 55.43 0.74 -25.76 16 22 Si 0.89 21.15 29.54 -169.99 -5.02 16.12 16 23 H -0.28 -6.41 7.11 56.52 0.40 -6.01 16 24 H -0.29 -6.77 7.11 56.52 0.40 -6.36 16 25 H -0.28 -6.42 7.11 56.52 0.40 -6.01 16 26 C 0.09 0.67 6.14 -3.36 -0.02 0.65 16 27 C 0.04 0.24 5.49 -3.36 -0.02 0.23 16 28 H 0.06 0.57 8.03 -51.93 -0.42 0.15 16 29 H 0.05 0.30 8.14 -51.93 -0.42 -0.12 16 30 H 0.06 0.31 8.14 -51.93 -0.42 -0.11 16 31 H 0.08 0.30 6.81 -51.93 -0.35 -0.05 16 32 H 0.08 0.60 7.76 -51.93 -0.40 0.20 16 33 H 0.07 0.28 8.14 -51.93 -0.42 -0.14 16 34 H 0.11 0.50 2.92 -51.93 -0.15 0.34 16 35 H 0.07 0.26 6.67 -51.93 -0.35 -0.09 16 36 H 0.07 0.20 6.96 -51.93 -0.36 -0.16 16 37 H 0.08 0.15 8.14 -51.93 -0.42 -0.27 16 38 H 0.07 0.73 8.14 -51.93 -0.42 0.31 16 39 H 0.10 1.02 7.16 -51.93 -0.37 0.65 16 40 H 0.11 1.24 6.99 -51.93 -0.36 0.88 16 41 H 0.07 0.62 8.14 -51.93 -0.42 0.20 16 42 H 0.39 4.25 5.94 -40.82 -0.24 4.00 16 43 H 0.06 1.15 8.14 -51.93 -0.42 0.73 16 44 H 0.06 1.19 8.14 -51.93 -0.42 0.76 16 45 H 0.05 0.97 8.14 -51.93 -0.42 0.55 16 46 H 0.05 0.97 8.14 -51.93 -0.42 0.54 16 47 H 0.02 0.51 8.14 -51.93 -0.42 0.09 16 48 H 0.02 0.52 8.14 -51.93 -0.42 0.10 16 49 H 0.26 7.36 8.31 -40.82 -0.34 7.02 16 50 H 0.07 0.44 6.93 -51.93 -0.36 0.08 16 51 H 0.09 0.55 5.61 -51.93 -0.29 0.26 16 52 H 0.07 0.55 8.14 -51.93 -0.42 0.13 16 53 H 0.14 0.70 1.03 -68.65 -0.07 0.63 16 LS Contribution 406.30 15.07 6.12 6.12 Total: -1.00 -35.63 406.30 -10.17 -45.79 By element: Atomic # 1 Polarization: 8.06 SS G_CDS: -8.77 Total: -0.71 kcal Atomic # 6 Polarization: 8.66 SS G_CDS: -1.53 Total: 7.14 kcal Atomic # 7 Polarization: -54.08 SS G_CDS: -1.14 Total: -55.22 kcal Atomic # 8 Polarization: -19.41 SS G_CDS: 0.17 Total: -19.24 kcal Atomic # 14 Polarization: 21.15 SS G_CDS: -5.02 Total: 16.12 kcal Total LS contribution 6.12 Total: 6.12 kcal Total: -35.63 -10.17 -45.79 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. ZINC000352361706.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 46.726 kcal (2) G-P(sol) polarization free energy of solvation -35.627 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 11.099 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -10.167 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -45.794 kcal (6) G-S(sol) free energy of system = (1) + (5) 0.932 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.72 seconds