Wall clock time and date at job start Sat Apr 11 2020 06:12:09 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 1.53006 * 1 3 3 C 1.52998 * 109.46778 * 2 1 4 4 C 1.53006 * 109.46778 * 180.02562 * 3 2 1 5 5 C 1.53006 * 109.46992 * 180.02562 * 4 3 2 6 6 H 1.08994 * 109.46873 * 55.00012 * 5 4 3 7 7 N 1.46500 * 109.46891 * 294.99590 * 5 4 3 8 8 C 1.34773 * 120.00431 * 300.00479 * 7 5 4 9 9 N 1.34777 * 120.00097 * 179.72742 * 8 7 5 10 10 O 1.21593 * 119.99894 * 359.97438 * 8 7 5 11 11 C 1.50698 * 109.46867 * 175.00106 * 5 4 3 12 12 O 1.21285 * 120.00368 * 99.99688 * 11 5 4 13 13 N 1.34779 * 119.99750 * 279.99715 * 11 5 4 14 14 C 1.46928 * 120.63084 * 359.72227 * 13 11 5 15 15 C 1.53627 * 108.54100 * 126.36908 * 14 13 11 16 16 C 1.53047 * 109.24252 * 54.85471 * 15 14 13 17 17 C 1.53003 * 109.44728 * 178.49463 * 16 15 14 18 18 N 1.46497 * 109.47184 * 295.06182 * 17 16 15 19 19 C 1.36934 * 119.99862 * 179.97438 * 18 17 16 20 20 H 1.07995 * 120.00372 * 359.97438 * 19 18 17 21 21 C 1.38812 * 120.00048 * 179.97438 * 19 18 17 22 22 N 1.31619 * 120.00222 * 0.02562 * 21 19 18 23 23 Si 1.86797 * 120.00304 * 179.97438 * 21 19 18 24 24 H 1.48500 * 109.47074 * 59.99971 * 23 21 19 25 25 H 1.48497 * 109.47486 * 180.02562 * 23 21 19 26 26 H 1.48504 * 109.47010 * 300.00350 * 23 21 19 27 27 C 1.53034 * 109.53641 * 298.51051 * 16 15 14 28 28 C 1.46927 * 120.62797 * 180.02562 * 13 11 5 29 29 H 1.08995 * 109.47180 * 180.02562 * 1 2 3 30 30 H 1.09003 * 109.46815 * 299.99923 * 1 2 3 31 31 H 1.08992 * 109.47167 * 60.00013 * 1 2 3 32 32 H 1.08995 * 109.46943 * 239.99781 * 2 1 3 33 33 H 1.09000 * 109.46992 * 119.99727 * 2 1 3 34 34 H 1.09003 * 109.47385 * 60.00426 * 3 2 1 35 35 H 1.09000 * 109.47136 * 299.99638 * 3 2 1 36 36 H 1.08995 * 109.46943 * 59.99781 * 4 3 2 37 37 H 1.09000 * 109.46992 * 299.99727 * 4 3 2 38 38 H 0.97000 * 119.99456 * 120.00041 * 7 5 4 39 39 H 0.96999 * 120.00043 * 180.27820 * 9 8 7 40 40 H 0.97000 * 119.99736 * 0.26819 * 9 8 7 41 41 H 1.08995 * 109.58339 * 246.20198 * 14 13 11 42 42 H 1.08993 * 109.58615 * 6.62963 * 14 13 11 43 43 H 1.08994 * 109.63412 * 294.86368 * 15 14 13 44 44 H 1.08997 * 109.43055 * 174.72147 * 15 14 13 45 45 H 1.08996 * 109.45657 * 58.53207 * 16 15 14 46 46 H 1.09001 * 109.46871 * 55.06304 * 17 16 15 47 47 H 1.08998 * 109.46514 * 175.06064 * 17 16 15 48 48 H 0.97005 * 119.99988 * 0.02562 * 18 17 16 49 49 H 0.96997 * 120.00698 * 180.02562 * 22 21 19 50 50 H 1.09000 * 109.50195 * 301.41017 * 27 16 15 51 51 H 1.09008 * 109.52084 * 181.33347 * 27 16 15 52 52 H 1.09001 * 109.59074 * 353.37493 * 28 13 11 53 53 H 1.09005 * 109.58528 * 113.65495 * 28 13 11 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 1.5301 0.0000 0.0000 3 6 2.0400 1.4425 0.0000 4 6 3.5700 1.4425 -0.0006 5 6 4.0800 2.8851 0.0000 6 1 3.6457 3.4235 0.8423 7 7 3.6920 3.5407 -1.2513 8 6 4.1159 3.0460 -2.4311 9 7 3.7544 3.6460 -3.5825 10 8 4.8210 2.0556 -2.4569 11 6 5.5820 2.8868 0.1232 12 8 6.2712 3.0403 -0.8629 13 7 6.1593 2.7177 1.3292 14 6 5.3377 2.5366 2.5338 15 6 5.7906 1.2528 3.2456 16 6 7.2949 1.3304 3.5170 17 6 7.7442 0.0703 4.2594 18 7 7.1120 0.0302 5.5804 19 6 7.3665 -1.0133 6.4298 20 1 8.0329 -1.8069 6.1258 21 6 6.7680 -1.0510 7.6817 22 7 5.9554 -0.0841 8.0521 23 14 7.1145 -2.4747 8.8402 24 1 8.5687 -2.5295 9.1361 25 1 6.3588 -2.2802 10.1036 26 1 6.6912 -3.7469 8.2016 27 6 8.0495 1.4367 2.1899 28 6 7.6223 2.7175 1.4653 29 1 -0.3633 -1.0276 0.0005 30 1 -0.3633 0.5138 0.8900 31 1 -0.3633 0.5138 -0.8899 32 1 1.8933 -0.5138 -0.8899 33 1 1.8934 -0.5138 0.8900 34 1 1.6767 1.9564 0.8900 35 1 1.6767 1.9563 -0.8900 36 1 3.9329 0.9288 -0.8908 37 1 3.9337 0.9286 0.8891 38 1 3.1298 4.3309 -1.2307 39 1 4.0562 3.2875 -4.4318 40 1 3.1922 4.4362 -3.5618 41 1 5.4688 3.3913 3.1973 42 1 4.2889 2.4486 2.2508 43 1 5.5789 0.3898 2.6144 44 1 5.2553 1.1536 4.1898 45 1 7.5088 2.2074 4.1277 46 1 7.4509 -0.8113 3.6894 47 1 8.8279 0.0840 4.3755 48 1 6.5126 0.7425 5.8530 49 1 5.5374 -0.1102 8.9270 50 1 7.8166 0.5720 1.5685 51 1 9.1220 1.4681 2.3823 52 1 8.0813 2.7490 0.4772 53 1 7.9357 3.5881 2.0416 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 ZINC001206969978.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 06:12:09 Heat of formation + Delta-G solvation = -71.520633 kcal Electronic energy + Delta-G solvation = -31369.988253 eV Core-core repulsion = 27276.217378 eV Total energy + Delta-G solvation = -4093.770875 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.226 amu Computer time = 0.67 seconds Orbital eigenvalues (eV) -40.87587 -39.37319 -37.50522 -36.38578 -34.86171 -34.33874 -33.65240 -32.81389 -31.27624 -30.39127 -30.24082 -27.44467 -26.17088 -23.80395 -23.18940 -22.91802 -22.11332 -21.34833 -20.76397 -20.08080 -18.89530 -18.72665 -17.42175 -17.15137 -16.71417 -16.13294 -15.63262 -15.28462 -14.78457 -14.77242 -14.52443 -14.34936 -14.15007 -14.00603 -13.85383 -13.68644 -13.53371 -13.28079 -12.91541 -12.76845 -12.62650 -12.36077 -12.19364 -11.88381 -11.74099 -11.41874 -11.26812 -11.09464 -11.05618 -10.96823 -10.81096 -10.74241 -10.40713 -10.31865 -10.24446 -10.14292 -9.96374 -9.82666 -9.67846 -9.61960 -8.95091 -8.85055 -8.48002 -6.89636 -5.75631 -3.03286 2.54072 2.75721 3.08160 3.36539 3.45089 3.49378 3.50397 4.26662 4.39006 4.60426 4.63824 4.67676 4.83857 4.90963 4.93375 5.09660 5.13149 5.15491 5.24381 5.26104 5.41568 5.50348 5.54401 5.55747 5.58155 5.68330 5.70683 5.72875 5.87525 5.91394 6.00197 6.02956 6.04559 6.09355 6.13311 6.21732 6.26086 6.29984 6.33515 6.50801 6.51832 6.55111 6.69312 6.79830 6.84917 6.96461 7.48601 7.71543 7.83179 8.28673 8.44040 8.65335 9.55117 10.13504 10.48467 11.47386 Molecular weight = 340.23amu Principal moments of inertia in cm(-1) A = 0.012889 B = 0.002708 C = 0.002351 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2171.941234 B =10336.985935 C =11907.865826 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 -0.126 4.126 3 C -0.111 4.111 4 C -0.138 4.138 5 C 0.155 3.845 6 H 0.108 0.892 7 N -0.733 5.733 8 C 0.710 3.290 9 N -0.873 5.873 10 O -0.562 6.562 11 C 0.502 3.498 12 O -0.514 6.514 13 N -0.610 5.610 14 C 0.102 3.898 15 C -0.124 4.124 16 C -0.093 4.093 17 C 0.158 3.842 18 N -0.731 5.731 19 C -0.237 4.237 20 H 0.069 0.931 21 C -0.015 4.015 22 N -0.935 5.935 23 Si 0.906 3.094 24 H -0.286 1.286 25 H -0.291 1.291 26 H -0.286 1.286 27 C -0.126 4.126 28 C 0.116 3.884 29 H 0.053 0.947 30 H 0.054 0.946 31 H 0.050 0.950 32 H 0.060 0.940 33 H 0.065 0.935 34 H 0.061 0.939 35 H 0.060 0.940 36 H 0.095 0.905 37 H 0.079 0.921 38 H 0.397 0.603 39 H 0.412 0.588 40 H 0.392 0.608 41 H 0.071 0.929 42 H 0.081 0.919 43 H 0.064 0.936 44 H 0.087 0.913 45 H 0.071 0.929 46 H 0.018 0.982 47 H 0.018 0.982 48 H 0.383 0.617 49 H 0.255 0.745 50 H 0.065 0.935 51 H 0.073 0.927 52 H 0.087 0.913 53 H 0.064 0.936 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -10.411 11.377 -20.627 25.754 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 -0.164 4.164 3 C -0.148 4.148 4 C -0.176 4.176 5 C 0.045 3.955 6 H 0.126 0.874 7 N -0.390 5.390 8 C 0.409 3.591 9 N -0.441 5.441 10 O -0.436 6.436 11 C 0.287 3.713 12 O -0.388 6.388 13 N -0.345 5.345 14 C -0.020 4.020 15 C -0.162 4.162 16 C -0.112 4.112 17 C 0.030 3.970 18 N -0.376 5.376 19 C -0.368 4.368 20 H 0.087 0.913 21 C -0.210 4.210 22 N -0.584 5.584 23 Si 0.737 3.263 24 H -0.213 1.213 25 H -0.217 1.217 26 H -0.213 1.213 27 C -0.164 4.164 28 C -0.007 4.007 29 H 0.072 0.928 30 H 0.073 0.927 31 H 0.069 0.931 32 H 0.079 0.921 33 H 0.084 0.916 34 H 0.080 0.920 35 H 0.078 0.922 36 H 0.113 0.887 37 H 0.098 0.902 38 H 0.231 0.769 39 H 0.244 0.756 40 H 0.219 0.781 41 H 0.089 0.911 42 H 0.099 0.901 43 H 0.083 0.917 44 H 0.106 0.894 45 H 0.090 0.910 46 H 0.036 0.964 47 H 0.036 0.964 48 H 0.217 0.783 49 H 0.065 0.935 50 H 0.084 0.916 51 H 0.092 0.908 52 H 0.105 0.895 53 H 0.082 0.918 Dipole moment (debyes) X Y Z Total from point charges -9.356 10.431 -20.947 25.202 hybrid contribution -0.429 0.099 0.654 0.788 sum -9.785 10.531 -20.293 24.869 Atomic orbital electron populations 1.21760 0.95963 1.01586 1.01524 1.21519 0.95679 0.96767 1.02416 1.21537 0.94404 0.97154 1.01737 1.22069 0.96099 0.94250 1.05229 1.20750 0.92233 0.96274 0.86238 0.87405 1.44704 1.56634 1.33366 1.04266 1.15839 0.79629 0.83179 0.80499 1.42978 1.58895 1.34495 1.07744 1.90979 1.40012 1.26849 1.85791 1.20829 0.90648 0.76986 0.82810 1.90729 1.64291 1.47760 1.35987 1.48145 1.07175 1.72246 1.06973 1.22017 0.94578 0.99154 0.86297 1.21997 0.96833 0.96187 1.01232 1.21289 0.94486 1.00029 0.95354 1.20673 0.95438 0.93789 0.87082 1.42362 1.55360 1.27265 1.12591 1.19194 1.22290 1.00149 0.95208 0.91349 1.24711 1.00020 0.98445 0.97848 1.69635 1.34451 1.33332 1.21016 0.86277 0.77541 0.82027 0.80412 1.21326 1.21717 1.21317 1.21911 1.00312 0.97583 0.96619 1.21569 0.79624 0.97849 1.01641 0.92819 0.92696 0.93094 0.92097 0.91593 0.92000 0.92165 0.88661 0.90236 0.76909 0.75588 0.78120 0.91119 0.90080 0.91686 0.89407 0.91043 0.96411 0.96408 0.78291 0.93531 0.91576 0.90818 0.89458 0.91774 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 -1.18 9.91 37.16 0.37 -0.81 16 2 C -0.13 -1.14 5.93 -26.73 -0.16 -1.29 16 3 C -0.11 -0.93 5.10 -26.73 -0.14 -1.07 16 4 C -0.14 -1.47 4.22 -26.72 -0.11 -1.58 16 5 C 0.15 1.56 2.15 -69.08 -0.15 1.41 16 6 H 0.11 0.78 6.78 -51.93 -0.35 0.43 16 7 N -0.73 -6.45 4.66 -59.81 -0.28 -6.73 16 8 C 0.71 8.23 7.59 -86.92 -0.66 7.57 16 9 N -0.87 -6.18 8.88 27.63 0.25 -5.94 16 10 O -0.56 -9.41 13.03 -18.21 -0.24 -9.65 16 11 C 0.50 6.95 6.69 -10.99 -0.07 6.88 16 12 O -0.51 -9.15 13.09 -17.94 -0.23 -9.38 16 13 N -0.61 -7.78 2.97 -172.47 -0.51 -8.30 16 14 C 0.10 1.15 5.79 -3.48 -0.02 1.13 16 15 C -0.12 -1.78 5.26 -26.38 -0.14 -1.92 16 16 C -0.09 -1.45 2.19 -90.58 -0.20 -1.64 16 17 C 0.16 3.15 5.65 -4.04 -0.02 3.13 16 18 N -0.73 -18.16 5.32 -59.91 -0.32 -18.48 16 19 C -0.24 -6.62 9.99 -15.06 -0.15 -6.77 16 20 H 0.07 1.87 7.83 -52.49 -0.41 1.46 16 21 C -0.01 -0.42 5.50 -17.43 -0.10 -0.51 16 22 N -0.94 -27.85 13.06 55.49 0.72 -27.12 16 23 Si 0.91 22.40 29.55 -169.99 -5.02 17.37 16 24 H -0.29 -6.99 7.11 56.52 0.40 -6.59 16 25 H -0.29 -7.23 7.11 56.52 0.40 -6.82 16 26 H -0.29 -6.98 7.11 56.52 0.40 -6.58 16 27 C -0.13 -1.72 5.36 -26.59 -0.14 -1.86 16 28 C 0.12 1.51 6.43 -3.69 -0.02 1.49 16 29 H 0.05 0.41 8.14 -51.93 -0.42 -0.01 16 30 H 0.05 0.41 8.14 -51.93 -0.42 -0.02 16 31 H 0.05 0.37 8.14 -51.93 -0.42 -0.06 16 32 H 0.06 0.59 8.14 -51.93 -0.42 0.17 16 33 H 0.07 0.63 8.14 -51.93 -0.42 0.21 16 34 H 0.06 0.45 8.14 -51.93 -0.42 0.03 16 35 H 0.06 0.49 7.75 -51.93 -0.40 0.09 16 36 H 0.09 1.33 6.04 -51.93 -0.31 1.02 16 37 H 0.08 0.88 6.99 -51.93 -0.36 0.52 16 38 H 0.40 2.03 8.84 -40.82 -0.36 1.67 16 39 H 0.41 2.72 8.93 -40.82 -0.36 2.35 16 40 H 0.39 1.38 8.84 -40.82 -0.36 1.02 16 41 H 0.07 0.75 8.14 -51.93 -0.42 0.32 16 42 H 0.08 0.74 4.85 -51.93 -0.25 0.49 16 43 H 0.06 0.97 8.14 -51.93 -0.42 0.55 16 44 H 0.09 1.43 7.15 -51.93 -0.37 1.05 16 45 H 0.07 1.14 8.14 -51.93 -0.42 0.72 16 46 H 0.02 0.37 8.14 -51.93 -0.42 -0.05 16 47 H 0.02 0.37 8.14 -51.93 -0.42 -0.05 16 48 H 0.38 9.81 6.84 -40.82 -0.28 9.53 16 49 H 0.25 7.37 8.31 -40.82 -0.34 7.03 16 50 H 0.07 0.97 8.14 -51.93 -0.42 0.55 16 51 H 0.07 0.95 8.14 -51.92 -0.42 0.52 16 52 H 0.09 1.25 7.01 -51.93 -0.36 0.89 16 53 H 0.06 0.76 8.14 -51.93 -0.42 0.34 16 LS Contribution 409.79 15.07 6.18 6.18 Total: -1.00 -36.72 409.79 -10.42 -47.14 By element: Atomic # 1 Polarization: 20.01 SS G_CDS: -9.25 Total: 10.77 kcal Atomic # 6 Polarization: 5.86 SS G_CDS: -1.71 Total: 4.15 kcal Atomic # 7 Polarization: -66.43 SS G_CDS: -0.14 Total: -66.57 kcal Atomic # 8 Polarization: -18.56 SS G_CDS: -0.47 Total: -19.03 kcal Atomic # 14 Polarization: 22.40 SS G_CDS: -5.02 Total: 17.37 kcal Total LS contribution 6.18 Total: 6.18 kcal Total: -36.72 -10.42 -47.14 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. ZINC001206969978.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 -24.384 kcal (2) G-P(sol) polarization free energy of solvation -36.716 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -61.099 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -10.421 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -47.137 kcal (6) G-S(sol) free energy of system = (1) + (5) -71.521 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.68 seconds