Wall clock time and date at job start Tue Mar 31 2020 13:34:43 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 1.53004 * 109.47001 * 2 1 4 4 C 1.53000 * 109.46863 * 119.99875 * 2 1 3 5 5 H 1.08991 * 109.47079 * 57.89319 * 4 2 1 6 6 C 1.50703 * 109.47119 * 297.88830 * 4 2 1 7 7 O 1.21284 * 119.99907 * 268.59464 * 6 4 2 8 8 N 1.34778 * 119.99941 * 88.60015 * 6 4 2 9 9 C 1.46499 * 119.99658 * 174.89041 * 8 6 4 10 10 C 1.53950 * 113.57800 * 252.71406 * 9 8 6 11 11 C 1.52909 * 86.78277 * 220.66860 * 10 9 8 12 12 C 1.52902 * 121.13584 * 150.61861 * 11 10 9 13 13 C 1.53951 * 86.78379 * 100.82234 * 12 11 10 14 14 N 1.46502 * 113.58200 * 139.33865 * 13 12 11 15 15 C 1.36926 * 119.99991 * 107.28118 * 14 13 12 16 16 H 1.08005 * 120.00689 * 359.97438 * 15 14 13 17 17 C 1.38818 * 120.00007 * 180.02562 * 15 14 13 18 18 N 1.31623 * 119.99734 * 359.97438 * 17 15 14 19 19 Si 1.86794 * 120.00258 * 179.97438 * 17 15 14 20 20 H 1.48499 * 109.47405 * 359.97438 * 19 17 15 21 21 H 1.48501 * 109.47402 * 120.00119 * 19 17 15 22 22 H 1.48505 * 109.47119 * 240.00190 * 19 17 15 23 23 C 1.52908 * 121.13537 * 259.18072 * 11 10 9 24 24 C 1.52911 * 88.04088 * 24.90003 * 11 10 9 25 25 N 1.46902 * 109.46791 * 177.89130 * 4 2 1 26 26 C 1.46895 * 111.00084 * 181.16820 * 25 4 2 27 27 C 1.46898 * 111.00126 * 305.11896 * 25 4 2 28 28 H 1.08998 * 109.46836 * 185.78275 * 1 2 3 29 29 H 1.08993 * 109.46955 * 305.78587 * 1 2 3 30 30 H 1.09007 * 109.46766 * 65.78713 * 1 2 3 31 31 H 1.09001 * 109.47026 * 240.00209 * 2 1 3 32 32 H 1.08999 * 109.46868 * 179.97438 * 3 2 1 33 33 H 1.09004 * 109.47108 * 300.00255 * 3 2 1 34 34 H 1.09003 * 109.46981 * 59.99448 * 3 2 1 35 35 H 0.96999 * 119.99748 * 355.16297 * 8 6 4 36 36 H 1.08998 * 112.82738 * 23.90917 * 9 8 6 37 37 H 1.08999 * 113.66450 * 335.14420 * 10 9 8 38 38 H 1.08999 * 113.65702 * 106.19550 * 10 9 8 39 39 H 1.08998 * 113.66632 * 215.29592 * 12 11 10 40 40 H 1.09001 * 113.66354 * 346.35248 * 12 11 10 41 41 H 1.09010 * 113.57534 * 270.13115 * 13 12 11 42 42 H 0.96994 * 119.99360 * 287.28015 * 14 13 12 43 43 H 0.96996 * 119.99615 * 179.97438 * 18 17 15 44 44 H 1.08996 * 113.66291 * 13.65403 * 23 11 10 45 45 H 1.08999 * 113.66171 * 144.61789 * 23 11 10 46 46 H 1.08998 * 113.66133 * 220.62592 * 24 11 10 47 47 H 1.09003 * 113.66171 * 89.57428 * 24 11 10 48 48 H 1.09001 * 109.47452 * 64.36448 * 26 25 4 49 49 H 1.09000 * 109.47512 * 184.36727 * 26 25 4 50 50 H 1.09008 * 109.47204 * 304.36772 * 26 25 4 51 51 H 1.09006 * 109.47150 * 60.00152 * 27 25 4 52 52 H 1.08995 * 109.47650 * 180.02562 * 27 25 4 53 53 H 1.09007 * 109.47411 * 300.00524 * 27 25 4 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 2.0400 -0.7212 1.2493 5 1 1.6462 -1.7373 1.2684 6 6 1.5808 0.0188 2.4792 7 8 2.2830 0.8793 2.9666 8 7 0.3900 -0.2756 3.0375 9 6 -0.0073 0.3627 4.2948 10 6 0.0360 -0.5851 5.5072 11 6 -1.2694 0.0713 5.9580 12 6 -2.3010 -0.7027 6.7793 13 6 -1.7430 0.0319 8.0118 14 7 -2.7778 0.4665 8.9534 15 6 -2.9279 -0.1791 10.1516 16 1 -2.2837 -1.0090 10.4024 17 6 -3.9087 0.2322 11.0436 18 7 -4.6941 1.2432 10.7378 19 14 -4.1140 -0.6489 12.6778 20 1 -3.1153 -1.7433 12.7791 21 1 -3.9078 0.3144 13.7890 22 1 -5.4826 -1.2189 12.7644 23 6 -1.2801 1.1415 7.0502 24 6 -1.5321 0.4316 4.4954 25 7 3.5081 -0.7655 1.2241 26 6 4.0336 -1.4767 2.3971 27 6 3.9952 -1.3730 -0.0216 28 1 -0.3633 -1.0224 0.1035 29 1 -0.3633 0.6009 0.8336 30 1 -0.3633 0.4215 -0.9373 31 1 1.8934 -0.5138 -0.8900 32 1 3.1300 1.4425 0.0005 33 1 1.6767 1.9564 -0.8900 34 1 1.6766 1.9564 0.8900 35 1 -0.2023 -0.9131 2.6088 36 1 0.4982 1.3133 4.4646 37 1 -0.0716 -1.6373 5.2439 38 1 0.8742 -0.3985 6.1785 39 1 -3.3327 -0.4413 6.5442 40 1 -2.1286 -1.7788 6.7963 41 1 -0.9214 -0.4943 8.4981 42 1 -3.3565 1.2115 8.7281 43 1 -5.3797 1.5304 11.3610 44 1 -0.2922 1.5385 7.2833 45 1 -2.0239 1.9221 6.8904 46 1 -1.9467 1.4303 4.3585 47 1 -2.0805 -0.3349 3.9478 48 1 3.7166 -2.5190 2.3623 49 1 5.1225 -1.4278 2.3940 50 1 3.6516 -1.0109 3.3056 51 1 3.6486 -0.7858 -0.8720 52 1 5.0849 -1.3938 -0.0139 53 1 3.6133 -2.3908 -0.1031 RHF calculation, no. of doubly occupied orbitals= 63 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 ZINC001121728561.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 13:34:43 Heat of formation + Delta-G solvation = 21.183044 kcal Electronic energy + Delta-G solvation = -28304.255158 eV Core-core repulsion = 24598.612319 eV Total energy + Delta-G solvation = -3705.642839 eV No. of doubly occupied orbitals = 63 Molecular weight (most abundant/longest-lived isotopes) = 323.231 amu Computer time = 0.81 seconds Orbital eigenvalues (eV) -40.88194 -39.87580 -37.46961 -35.78552 -34.84259 -33.55651 -32.11642 -29.58515 -28.28522 -27.78710 -27.27811 -25.76836 -25.23578 -24.25068 -23.25058 -22.44367 -21.14599 -20.21971 -19.52202 -17.82750 -17.29553 -16.98503 -16.80466 -16.05370 -15.62207 -15.20032 -14.91212 -14.81527 -14.60341 -14.23022 -13.93300 -13.70215 -13.40865 -13.23835 -12.94322 -12.76682 -12.68422 -12.60519 -12.52195 -12.31633 -12.18538 -12.10781 -11.85336 -11.64875 -11.31529 -11.29144 -11.20859 -11.08261 -10.99262 -10.86308 -10.70250 -10.33238 -10.04289 -9.80722 -9.73552 -9.70900 -9.31758 -9.00676 -8.85117 -8.67634 -6.93716 -5.77060 -3.05279 2.48902 2.92118 3.43134 3.48900 3.51093 3.59748 4.28366 4.47127 4.55933 4.57924 4.62232 4.71968 4.76013 4.80327 4.84539 4.91226 4.98265 5.00718 5.11393 5.24094 5.27959 5.36234 5.41215 5.46285 5.51835 5.54440 5.58327 5.67426 5.69943 5.72441 5.74824 5.80864 5.92231 5.93980 5.96021 5.99350 6.13213 6.20119 6.21975 6.24826 6.38277 6.44279 6.49477 6.58010 6.62998 6.65793 6.94995 7.15426 7.41767 7.71334 8.15234 8.41893 9.52889 10.11884 10.46274 11.45546 Molecular weight = 323.23amu Principal moments of inertia in cm(-1) A = 0.029581 B = 0.002129 C = 0.002060 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 946.330214 B =13148.649880 C =13591.738484 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.158 4.158 2 C -0.086 4.086 3 C -0.142 4.142 4 C 0.070 3.930 5 H 0.056 0.944 6 C 0.522 3.478 7 O -0.517 6.517 8 N -0.722 5.722 9 C 0.124 3.876 10 C -0.125 4.125 11 C -0.102 4.102 12 C -0.148 4.148 13 C 0.168 3.832 14 N -0.714 5.714 15 C -0.240 4.240 16 H 0.071 0.929 17 C -0.015 4.015 18 N -0.933 5.933 19 Si 0.907 3.093 20 H -0.280 1.280 21 H -0.291 1.291 22 H -0.292 1.292 23 C -0.128 4.128 24 C -0.130 4.130 25 N -0.521 5.521 26 C 0.021 3.979 27 C 0.021 3.979 28 H 0.056 0.944 29 H 0.063 0.937 30 H 0.063 0.937 31 H 0.082 0.918 32 H 0.069 0.931 33 H 0.049 0.951 34 H 0.059 0.941 35 H 0.397 0.603 36 H 0.114 0.886 37 H 0.081 0.919 38 H 0.071 0.929 39 H 0.078 0.922 40 H 0.053 0.947 41 H 0.074 0.926 42 H 0.385 0.615 43 H 0.255 0.745 44 H 0.060 0.940 45 H 0.081 0.919 46 H 0.072 0.928 47 H 0.082 0.918 48 H 0.023 0.977 49 H 0.072 0.928 50 H 0.075 0.925 51 H 0.074 0.926 52 H 0.072 0.928 53 H 0.025 0.975 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 13.840 -5.746 -26.133 30.125 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 -0.216 4.216 2 C -0.105 4.105 3 C -0.199 4.199 4 C -0.042 4.042 5 H 0.074 0.926 6 C 0.307 3.693 7 O -0.391 6.391 8 N -0.374 5.374 9 C 0.020 3.980 10 C -0.163 4.163 11 C -0.103 4.103 12 C -0.190 4.190 13 C 0.057 3.943 14 N -0.352 5.352 15 C -0.372 4.372 16 H 0.089 0.911 17 C -0.211 4.211 18 N -0.581 5.581 19 Si 0.738 3.262 20 H -0.206 1.206 21 H -0.219 1.219 22 H -0.219 1.219 23 C -0.167 4.167 24 C -0.168 4.168 25 N -0.245 5.245 26 C -0.127 4.127 27 C -0.127 4.127 28 H 0.075 0.925 29 H 0.082 0.918 30 H 0.082 0.918 31 H 0.100 0.900 32 H 0.088 0.912 33 H 0.068 0.932 34 H 0.078 0.922 35 H 0.231 0.769 36 H 0.132 0.868 37 H 0.100 0.900 38 H 0.090 0.910 39 H 0.097 0.903 40 H 0.072 0.928 41 H 0.092 0.908 42 H 0.219 0.781 43 H 0.064 0.936 44 H 0.079 0.921 45 H 0.100 0.900 46 H 0.091 0.909 47 H 0.100 0.900 48 H 0.042 0.958 49 H 0.091 0.909 50 H 0.094 0.906 51 H 0.093 0.907 52 H 0.090 0.910 53 H 0.044 0.956 Dipole moment (debyes) X Y Z Total from point charges 14.558 -4.731 -25.543 29.779 hybrid contribution -1.031 -1.512 0.569 1.917 sum 13.527 -6.243 -24.974 29.080 Atomic orbital electron populations 1.22000 0.94547 1.02016 1.03018 1.21161 0.95775 0.97850 0.95715 1.21777 1.02449 0.94162 1.01530 1.21776 0.89548 0.98141 0.94723 0.92588 1.20303 0.81314 0.83376 0.84336 1.90711 1.54272 1.31206 1.62924 1.46196 1.19414 1.46384 1.25377 1.22613 0.95758 0.97571 0.82086 1.23142 0.97446 0.98878 0.96859 1.22069 0.96450 0.99299 0.92464 1.23634 0.97942 0.98555 0.98825 1.21538 0.91764 0.93167 0.87881 1.42425 1.37260 1.38621 1.16850 1.19354 1.13366 1.10920 0.93540 0.91086 1.24768 0.98773 0.98655 0.98903 1.69673 1.22983 1.28829 1.36641 0.86121 0.77406 0.78715 0.83980 1.20554 1.21865 1.21899 1.23206 1.01137 0.97061 0.95338 1.23166 0.94532 1.02139 0.96992 1.61694 1.06167 1.53750 1.02890 1.22466 1.01077 0.95415 0.93734 1.22497 1.01017 0.96981 0.92190 0.92527 0.91820 0.91760 0.90026 0.91237 0.93224 0.92194 0.76868 0.86799 0.90008 0.91037 0.90315 0.92793 0.90837 0.78122 0.93556 0.92088 0.90037 0.90887 0.89982 0.95835 0.90921 0.90646 0.90725 0.90965 0.95630 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 14. 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 -0.16 -0.98 8.36 37.16 0.31 -0.67 16 2 C -0.09 -0.62 2.27 -90.61 -0.21 -0.82 16 3 C -0.14 -1.26 8.66 37.16 0.32 -0.94 16 4 C 0.07 0.60 1.67 -68.86 -0.12 0.48 16 5 H 0.06 0.41 8.14 -51.93 -0.42 -0.01 16 6 C 0.52 5.74 4.21 -10.98 -0.05 5.70 16 7 O -0.52 -7.73 14.43 5.55 0.08 -7.65 16 8 N -0.72 -6.87 4.48 -52.85 -0.24 -7.10 16 9 C 0.12 1.41 4.27 -66.95 -0.29 1.13 16 10 C -0.12 -1.52 7.64 -26.28 -0.20 -1.72 16 11 C -0.10 -1.41 1.11 -154.72 -0.17 -1.58 16 12 C -0.15 -2.51 7.64 -26.29 -0.20 -2.71 16 13 C 0.17 3.34 4.48 -66.95 -0.30 3.04 16 14 N -0.71 -17.97 5.40 -52.47 -0.28 -18.25 16 15 C -0.24 -6.71 9.97 -15.06 -0.15 -6.86 16 16 H 0.07 1.93 7.83 -52.48 -0.41 1.52 16 17 C -0.02 -0.44 5.50 -17.43 -0.10 -0.53 16 18 N -0.93 -28.28 13.06 55.49 0.72 -27.55 16 19 Si 0.91 22.46 29.55 -169.99 -5.02 17.44 16 20 H -0.28 -6.72 7.11 56.52 0.40 -6.32 16 21 H -0.29 -7.26 7.11 56.52 0.40 -6.86 16 22 H -0.29 -7.26 7.11 56.52 0.40 -6.86 16 23 C -0.13 -2.12 7.59 -26.28 -0.20 -2.32 16 24 C -0.13 -1.48 7.59 -26.28 -0.20 -1.68 16 25 N -0.52 -4.72 3.92 -244.58 -0.96 -5.68 16 26 C 0.02 0.19 9.30 60.06 0.56 0.75 16 27 C 0.02 0.14 9.08 60.06 0.55 0.68 16 28 H 0.06 0.28 8.14 -51.93 -0.42 -0.14 16 29 H 0.06 0.47 6.87 -51.93 -0.36 0.12 16 30 H 0.06 0.36 8.14 -51.93 -0.42 -0.07 16 31 H 0.08 0.48 6.21 -51.93 -0.32 0.16 16 32 H 0.07 0.68 7.66 -51.93 -0.40 0.28 16 33 H 0.05 0.37 8.14 -51.93 -0.42 -0.05 16 34 H 0.06 0.67 6.65 -51.93 -0.35 0.33 16 35 H 0.40 2.86 8.27 -40.82 -0.34 2.52 16 36 H 0.11 1.53 7.42 -51.93 -0.39 1.14 16 37 H 0.08 0.93 8.14 -51.93 -0.42 0.50 16 38 H 0.07 0.93 8.14 -51.93 -0.42 0.51 16 39 H 0.08 1.43 8.14 -51.93 -0.42 1.00 16 40 H 0.05 0.88 8.14 -51.93 -0.42 0.46 16 41 H 0.07 1.48 8.10 -51.92 -0.42 1.06 16 42 H 0.38 10.27 7.92 -40.82 -0.32 9.94 16 43 H 0.25 7.45 8.31 -40.82 -0.34 7.11 16 44 H 0.06 0.97 8.14 -51.93 -0.42 0.55 16 45 H 0.08 1.39 8.12 -51.93 -0.42 0.97 16 46 H 0.07 0.85 8.14 -51.93 -0.42 0.42 16 47 H 0.08 0.82 8.12 -51.93 -0.42 0.40 16 48 H 0.02 0.18 8.14 -51.93 -0.42 -0.24 16 49 H 0.07 0.59 8.14 -51.93 -0.42 0.16 16 50 H 0.07 0.85 6.41 -51.92 -0.33 0.52 16 51 H 0.07 0.42 6.17 -51.93 -0.32 0.10 16 52 H 0.07 0.42 8.14 -51.93 -0.42 0.00 16 53 H 0.03 0.14 8.14 -51.93 -0.42 -0.28 16 LS Contribution 409.56 15.07 6.17 6.17 Total: -1.00 -31.94 409.56 -9.81 -41.75 By element: Atomic # 1 Polarization: 18.79 SS G_CDS: -9.85 Total: 8.94 kcal Atomic # 6 Polarization: -7.63 SS G_CDS: -0.44 Total: -8.07 kcal Atomic # 7 Polarization: -57.83 SS G_CDS: -0.76 Total: -58.59 kcal Atomic # 8 Polarization: -7.73 SS G_CDS: 0.08 Total: -7.65 kcal Atomic # 14 Polarization: 22.46 SS G_CDS: -5.02 Total: 17.44 kcal Total LS contribution 6.17 Total: 6.17 kcal Total: -31.94 -9.81 -41.75 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. ZINC001121728561.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 62.937 kcal (2) G-P(sol) polarization free energy of solvation -31.941 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 30.996 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.813 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -41.754 kcal (6) G-S(sol) free energy of system = (1) + (5) 21.183 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.81 seconds