Wall clock time and date at job start Sat Apr 11 2020 06:10:55 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 1.52997 * 1 3 3 C 1.52992 * 109.47482 * 2 1 4 4 C 1.52997 * 109.47482 * 179.97438 * 3 2 1 5 5 C 1.53000 * 109.47060 * 180.02562 * 4 3 2 6 6 H 1.08990 * 109.47170 * 54.99895 * 5 4 3 7 7 O 1.42905 * 109.46848 * 294.99674 * 5 4 3 8 8 C 1.53002 * 109.46776 * 174.99999 * 5 4 3 9 9 N 1.46903 * 109.47041 * 184.99509 * 8 5 4 10 10 C 1.47588 * 111.00403 * 266.10974 * 9 8 5 11 11 C 1.52882 * 87.78795 * 221.76042 * 10 9 8 12 12 C 1.47593 * 111.00294 * 169.99894 * 9 8 5 13 13 C 1.52455 * 114.26670 * 271.58376 * 11 10 9 14 14 N 1.46298 * 109.56413 * 272.35028 * 13 11 10 15 15 C 1.46497 * 118.72748 * 164.04347 * 14 13 11 16 16 C 1.52996 * 109.47377 * 89.99819 * 15 14 13 17 17 C 1.50704 * 109.47271 * 180.02562 * 16 15 14 18 18 H 1.07993 * 119.99778 * 0.02562 * 17 16 15 19 19 C 1.37876 * 119.99784 * 180.02562 * 17 16 15 20 20 N 1.31516 * 120.00241 * 359.97438 * 19 17 16 21 21 Si 1.86801 * 119.99922 * 179.97438 * 19 17 16 22 22 H 1.48507 * 109.46851 * 359.97438 * 21 19 17 23 23 H 1.48498 * 109.47335 * 120.00003 * 21 19 17 24 24 H 1.48501 * 109.47132 * 240.00169 * 21 19 17 25 25 C 1.33713 * 122.54398 * 344.01970 * 14 13 11 26 26 O 1.21285 * 118.35946 * 183.34600 * 25 14 13 27 27 C 1.50154 * 123.27952 * 3.32567 * 25 14 13 28 28 O 1.42562 * 114.26144 * 139.69197 * 11 10 9 29 29 H 1.09001 * 109.47289 * 60.00300 * 1 2 3 30 30 H 1.09004 * 109.47261 * 180.02562 * 1 2 3 31 31 H 1.09002 * 109.47153 * 300.00216 * 1 2 3 32 32 H 1.09002 * 109.47153 * 239.99783 * 2 1 3 33 33 H 1.09001 * 109.46832 * 119.99974 * 2 1 3 34 34 H 1.09002 * 109.47103 * 59.99753 * 3 2 1 35 35 H 1.08998 * 109.46862 * 300.00565 * 3 2 1 36 36 H 1.09002 * 109.47153 * 59.99783 * 4 3 2 37 37 H 1.09001 * 109.46832 * 299.99974 * 4 3 2 38 38 H 0.96702 * 113.99974 * 300.00156 * 7 5 4 39 39 H 1.08993 * 109.47416 * 304.99509 * 8 5 4 40 40 H 1.09001 * 109.46966 * 65.00241 * 8 5 4 41 41 H 1.09001 * 113.49927 * 336.49572 * 10 9 8 42 42 H 1.09009 * 113.49770 * 107.02893 * 10 9 8 43 43 H 1.08998 * 113.49816 * 252.97714 * 12 9 8 44 44 H 1.09000 * 113.49395 * 23.44556 * 12 9 8 45 45 H 1.09004 * 109.45749 * 32.37940 * 13 11 10 46 46 H 1.09000 * 109.45854 * 152.32142 * 13 11 10 47 47 H 1.08997 * 109.47459 * 210.00472 * 15 14 13 48 48 H 1.09003 * 109.47058 * 329.99806 * 15 14 13 49 49 H 1.09002 * 109.47504 * 300.00245 * 16 15 14 50 50 H 1.09003 * 109.47037 * 59.99975 * 16 15 14 51 51 H 0.97003 * 119.99908 * 179.97438 * 20 19 17 52 52 H 1.09000 * 109.34682 * 102.52538 * 27 25 14 53 53 H 1.09002 * 109.34680 * 222.22098 * 27 25 14 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 6 2.0400 1.4424 0.0000 4 6 3.5700 1.4424 0.0006 5 6 4.0800 2.8849 0.0013 6 1 3.6450 3.4236 0.8430 7 8 3.7025 3.5241 -1.2198 8 6 5.6048 2.8866 0.1277 9 7 6.0845 4.2698 0.2486 10 6 6.4586 4.8172 -1.0700 11 6 7.6815 5.4416 -0.3979 12 6 7.5152 4.3039 0.6096 13 6 7.4377 6.8313 0.1798 14 7 7.6773 7.8399 -0.8524 15 6 7.1721 9.1985 -0.6401 16 6 8.2369 10.0327 0.0748 17 6 7.7170 11.4301 0.2938 18 1 6.7260 11.6965 -0.0429 19 6 8.5065 12.3685 0.9239 20 7 9.7131 12.0440 1.3343 21 14 7.8623 14.1009 1.1947 22 1 6.4873 14.2094 0.6442 23 1 7.8386 14.3985 2.6494 24 1 8.7491 15.0722 0.5052 25 6 8.3399 7.5698 -1.9820 26 8 8.5490 8.4778 -2.7584 27 6 8.8384 6.1987 -2.3370 28 8 8.8763 5.3693 -1.1722 29 1 -0.3634 0.5138 -0.8900 30 1 -0.3634 -1.0277 0.0005 31 1 -0.3633 0.5139 0.8900 32 1 1.8933 -0.5139 -0.8900 33 1 1.8933 -0.5138 0.8900 34 1 1.6767 1.9563 0.8900 35 1 1.6766 1.9562 -0.8899 36 1 3.9337 0.9284 -0.8891 37 1 3.9329 0.9287 0.8909 38 1 4.0550 3.0971 -2.0126 39 1 5.8966 2.3221 1.0132 40 1 6.0432 2.4261 -0.7577 41 1 6.7095 4.0508 -1.8034 42 1 5.7501 5.5521 -1.4524 43 1 7.6962 4.6065 1.6409 44 1 8.0543 3.3970 0.3355 45 1 6.4069 6.9045 0.5267 46 1 8.1150 7.0005 1.0169 47 1 6.9392 9.6541 -1.6025 48 1 6.2704 9.1595 -0.0289 49 1 8.4699 9.5771 1.0373 50 1 9.1387 10.0717 -0.5364 51 1 10.2687 12.7044 1.7773 52 1 8.1729 5.7526 -3.0761 53 1 9.8421 6.2764 -2.7552 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 ZINC001274572663.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 06:10:55 Heat of formation + Delta-G solvation = -103.414656 kcal Electronic energy + Delta-G solvation = -30474.471309 eV Core-core repulsion = 26347.024655 eV Total energy + Delta-G solvation = -4127.446655 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.71 seconds Orbital eigenvalues (eV) -41.51514 -39.49782 -38.22377 -36.69087 -35.44820 -35.31873 -33.02793 -32.15599 -30.59025 -29.92108 -28.17343 -26.98754 -26.30678 -25.31016 -24.49742 -23.17553 -21.74314 -21.59414 -21.27172 -20.04089 -18.13814 -17.81505 -16.91950 -16.76700 -16.46060 -16.09639 -15.84893 -15.81404 -15.39351 -15.26878 -14.59159 -14.57196 -14.38545 -14.18227 -13.84440 -13.73610 -13.31561 -13.26332 -13.01896 -12.91480 -12.72100 -12.50484 -12.37496 -12.24270 -11.83878 -11.63034 -11.57929 -11.51301 -11.40058 -11.26714 -11.09967 -10.95017 -10.94230 -10.81923 -10.63003 -10.31748 -10.05791 -9.85286 -9.79731 -9.30587 -9.26274 -8.96297 -8.32332 -8.07018 -5.97277 -4.00155 2.91028 3.08771 3.34115 3.40226 3.42678 3.46648 3.64695 4.01259 4.15430 4.23010 4.37325 4.49829 4.51566 4.53846 4.61684 4.68599 4.73352 4.84489 4.88081 4.96392 5.00798 5.15142 5.17284 5.23840 5.28890 5.36617 5.37932 5.38912 5.42884 5.46950 5.52553 5.56531 5.59052 5.64561 5.69790 5.75501 5.85705 5.87730 5.95164 5.97267 6.12914 6.54768 6.59058 6.70444 6.86454 6.92946 7.33862 7.63587 7.75191 7.96779 8.03327 8.38723 8.54452 9.06575 9.63421 11.14236 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.014503 B = 0.002135 C = 0.001975 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1930.208928 B =13112.344924 C =14176.165583 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.154 4.154 2 C -0.125 4.125 3 C -0.116 4.116 4 C -0.151 4.151 5 C 0.115 3.885 6 H 0.107 0.893 7 O -0.552 6.552 8 C -0.011 4.011 9 N -0.454 5.454 10 C -0.014 4.014 11 C 0.067 3.933 12 C 0.019 3.981 13 C 0.120 3.880 14 N -0.595 5.595 15 C 0.115 3.885 16 C 0.014 3.986 17 C -0.519 4.519 18 H 0.057 0.943 19 C 0.058 3.942 20 N -0.893 5.893 21 Si 0.894 3.106 22 H -0.272 1.272 23 H -0.284 1.284 24 H -0.284 1.284 25 C 0.479 3.521 26 O -0.539 6.539 27 C 0.054 3.946 28 O -0.357 6.357 29 H 0.054 0.946 30 H 0.052 0.948 31 H 0.054 0.946 32 H 0.059 0.941 33 H 0.059 0.941 34 H 0.062 0.938 35 H 0.069 0.931 36 H 0.063 0.937 37 H 0.071 0.929 38 H 0.367 0.633 39 H 0.084 0.916 40 H 0.049 0.951 41 H 0.076 0.924 42 H 0.096 0.904 43 H 0.102 0.898 44 H 0.083 0.917 45 H 0.096 0.904 46 H 0.080 0.920 47 H 0.075 0.925 48 H 0.065 0.935 49 H 0.015 0.985 50 H 0.022 0.978 51 H 0.260 0.740 52 H 0.083 0.917 53 H 0.127 0.873 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -11.757 -28.638 -2.539 31.061 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 -0.211 4.211 2 C -0.163 4.163 3 C -0.154 4.154 4 C -0.189 4.189 5 C 0.055 3.945 6 H 0.125 0.875 7 O -0.356 6.356 8 C -0.140 4.140 9 N -0.177 5.177 10 C -0.143 4.143 11 C 0.026 3.974 12 C -0.110 4.110 13 C -0.004 4.004 14 N -0.328 5.328 15 C -0.006 4.006 16 C -0.024 4.024 17 C -0.558 4.558 18 H 0.075 0.925 19 C -0.143 4.143 20 N -0.532 5.532 21 Si 0.722 3.278 22 H -0.197 1.197 23 H -0.210 1.210 24 H -0.210 1.210 25 C 0.265 3.735 26 O -0.417 6.417 27 C -0.026 4.026 28 O -0.275 6.275 29 H 0.073 0.927 30 H 0.071 0.929 31 H 0.073 0.927 32 H 0.077 0.923 33 H 0.078 0.922 34 H 0.081 0.919 35 H 0.087 0.913 36 H 0.082 0.918 37 H 0.089 0.911 38 H 0.213 0.787 39 H 0.103 0.897 40 H 0.067 0.933 41 H 0.095 0.905 42 H 0.115 0.885 43 H 0.120 0.880 44 H 0.101 0.899 45 H 0.114 0.886 46 H 0.098 0.902 47 H 0.093 0.907 48 H 0.084 0.916 49 H 0.034 0.966 50 H 0.041 0.959 51 H 0.069 0.931 52 H 0.101 0.899 53 H 0.145 0.855 Dipole moment (debyes) X Y Z Total from point charges -12.172 -27.503 -1.966 30.141 hybrid contribution 0.548 0.063 -0.601 0.815 sum -11.625 -27.440 -2.567 29.911 Atomic orbital electron populations 1.21777 0.95861 1.01496 1.01974 1.21545 0.95978 0.97013 1.01745 1.21539 0.94436 0.96526 1.02856 1.22304 0.96919 0.97093 1.02632 1.21929 0.91861 0.92374 0.88300 0.87524 1.86674 1.76647 1.57034 1.15250 1.23454 0.97557 0.91045 1.01991 1.68900 1.15216 1.17012 1.16553 1.24469 0.96924 1.00110 0.92824 1.22879 0.85411 0.95455 0.93692 1.23887 0.89634 0.97048 1.00387 1.21574 1.03362 0.84158 0.91274 1.47691 1.54782 1.12478 1.17827 1.21954 0.98114 0.79032 1.01490 1.19359 0.94102 0.93787 0.95149 1.21133 1.01203 0.95594 1.37844 0.92455 1.25003 0.94857 0.98858 0.95630 1.69992 1.08801 1.34487 1.39933 0.86501 0.79027 0.84549 0.77706 1.19670 1.21041 1.21000 1.20606 0.79256 0.91373 0.82249 1.90763 1.56310 1.45635 1.49034 1.22754 1.04430 0.87056 0.88317 1.88049 1.36891 1.65395 1.37118 0.92686 0.92902 0.92695 0.92262 0.92218 0.91891 0.91250 0.91818 0.91051 0.78680 0.89731 0.93268 0.90543 0.88537 0.87992 0.89894 0.88587 0.90216 0.90680 0.91637 0.96648 0.95922 0.93065 0.89924 0.85513 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 -0.15 -0.81 9.91 37.16 0.37 -0.44 16 2 C -0.13 -0.66 5.93 -26.74 -0.16 -0.82 16 3 C -0.12 -0.69 5.11 -26.74 -0.14 -0.83 16 4 C -0.15 -0.79 4.89 -26.73 -0.13 -0.92 16 5 C 0.11 0.80 3.21 -26.73 -0.09 0.71 16 6 H 0.11 0.90 8.14 -51.93 -0.42 0.48 16 7 O -0.55 -4.59 12.21 -35.23 -0.43 -5.02 16 8 C -0.01 -0.08 4.53 -3.82 -0.02 -0.09 16 9 N -0.45 -4.20 6.14 -244.69 -1.50 -5.71 16 10 C -0.01 -0.14 5.91 -7.28 -0.04 -0.19 16 11 C 0.07 0.79 1.29 -91.03 -0.12 0.67 16 12 C 0.02 0.18 7.12 -7.28 -0.05 0.13 16 13 C 0.12 1.77 5.85 -4.43 -0.03 1.74 16 14 N -0.60 -11.07 2.84 -174.72 -0.50 -11.57 16 15 C 0.11 2.51 5.20 -4.05 -0.02 2.49 16 16 C 0.01 0.38 5.29 -27.88 -0.15 0.23 16 17 C -0.52 -15.10 9.11 -34.44 -0.31 -15.42 16 18 H 0.06 1.61 7.74 -52.49 -0.41 1.20 16 19 C 0.06 1.71 5.46 -17.82 -0.10 1.61 16 20 N -0.89 -27.58 13.29 55.43 0.74 -26.85 16 21 Si 0.89 22.17 29.54 -169.99 -5.02 17.15 16 22 H -0.27 -6.57 7.11 56.52 0.40 -6.17 16 23 H -0.28 -6.91 7.11 56.52 0.40 -6.51 16 24 H -0.28 -7.01 7.11 56.52 0.40 -6.60 16 25 C 0.48 8.99 7.57 -11.72 -0.09 8.90 16 26 O -0.54 -12.45 16.33 5.55 0.09 -12.36 16 27 C 0.05 0.73 6.70 35.74 0.24 0.97 16 28 O -0.36 -4.73 10.68 -35.23 -0.38 -5.10 16 29 H 0.05 0.30 8.14 -51.93 -0.42 -0.13 16 30 H 0.05 0.25 8.14 -51.93 -0.42 -0.17 16 31 H 0.05 0.29 8.14 -51.93 -0.42 -0.13 16 32 H 0.06 0.30 8.14 -51.93 -0.42 -0.12 16 33 H 0.06 0.30 8.14 -51.93 -0.42 -0.12 16 34 H 0.06 0.41 8.14 -51.93 -0.42 -0.02 16 35 H 0.07 0.48 7.82 -51.93 -0.41 0.08 16 36 H 0.06 0.29 8.14 -51.93 -0.42 -0.13 16 37 H 0.07 0.33 8.14 -51.93 -0.42 -0.09 16 38 H 0.37 1.93 9.05 45.56 0.41 2.35 16 39 H 0.08 0.50 8.08 -51.93 -0.42 0.08 16 40 H 0.05 0.29 7.30 -51.93 -0.38 -0.08 16 41 H 0.08 0.66 7.42 -51.93 -0.39 0.27 16 42 H 0.10 1.12 8.11 -51.92 -0.42 0.70 16 43 H 0.10 0.90 8.11 -51.93 -0.42 0.48 16 44 H 0.08 0.67 7.91 -51.93 -0.41 0.26 16 45 H 0.10 1.34 7.83 -51.93 -0.41 0.93 16 46 H 0.08 1.23 8.14 -51.93 -0.42 0.81 16 47 H 0.07 1.75 7.29 -51.93 -0.38 1.37 16 48 H 0.07 1.31 7.97 -51.93 -0.41 0.90 16 49 H 0.02 0.43 8.14 -51.93 -0.42 0.01 16 50 H 0.02 0.69 8.14 -51.93 -0.42 0.26 16 51 H 0.26 7.53 8.31 -40.82 -0.34 7.19 16 52 H 0.08 0.91 7.99 -51.93 -0.41 0.50 16 53 H 0.13 1.59 8.14 -51.93 -0.42 1.17 16 LS Contribution 422.20 15.07 6.36 6.36 Total: -1.00 -35.06 422.20 -10.55 -45.60 By element: Atomic # 1 Polarization: 7.83 SS G_CDS: -9.08 Total: -1.25 kcal Atomic # 6 Polarization: -0.43 SS G_CDS: -0.83 Total: -1.26 kcal Atomic # 7 Polarization: -42.86 SS G_CDS: -1.26 Total: -44.12 kcal Atomic # 8 Polarization: -21.76 SS G_CDS: -0.72 Total: -22.48 kcal Atomic # 14 Polarization: 22.17 SS G_CDS: -5.02 Total: 17.15 kcal Total LS contribution 6.36 Total: 6.36 kcal Total: -35.06 -10.55 -45.60 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. ZINC001274572663.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 -57.813 kcal (2) G-P(sol) polarization free energy of solvation -35.056 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -92.869 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -10.545 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -45.602 kcal (6) G-S(sol) free energy of system = (1) + (5) -103.415 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.71 seconds