Wall clock time and date at job start Wed Apr 1 2020 02:30:16 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 1.52995 * 1 3 3 C 1.53007 * 109.35906 * 2 1 4 4 C 1.54844 * 109.36058 * 119.72298 * 2 1 3 5 5 C 1.50132 * 110.81120 * 81.33906 * 4 2 1 6 6 H 1.08998 * 110.25030 * 338.71396 * 5 4 2 7 7 N 1.46499 * 110.24750 * 216.79942 * 5 4 2 8 8 C 1.34782 * 119.99961 * 155.00041 * 7 5 4 9 9 O 1.21280 * 119.99882 * 0.02562 * 8 7 5 10 10 C 1.50690 * 119.99984 * 179.97438 * 8 7 5 11 11 F 1.39900 * 109.54584 * 55.00186 * 10 8 7 12 12 C 1.53175 * 109.54823 * 294.82646 * 10 8 7 13 13 C 1.53099 * 109.16286 * 183.24301 * 12 10 8 14 14 O 1.42908 * 109.48520 * 57.46921 * 13 12 10 15 15 C 1.42903 * 114.10123 * 298.89050 * 14 13 12 16 16 C 1.53094 * 109.41136 * 61.15760 * 15 14 13 17 17 C 1.52522 * 105.41233 * 97.68481 * 5 4 2 18 18 C 1.46240 * 114.27934 * 270.59112 * 17 5 4 19 19 N 1.50167 * 107.53289 * 58.40951 * 18 17 5 20 20 C 1.36934 * 120.53744 * 109.59364 * 19 18 17 21 21 H 1.07999 * 120.00129 * 320.09337 * 20 19 18 22 22 C 1.38811 * 119.99684 * 140.08514 * 20 19 18 23 23 N 1.31622 * 119.99982 * 156.58356 * 22 20 19 24 24 Si 1.86797 * 120.00345 * 336.57859 * 22 20 19 25 25 H 1.48506 * 109.46946 * 95.56954 * 24 22 20 26 26 H 1.48498 * 109.47467 * 215.56864 * 24 22 20 27 27 H 1.48503 * 109.47424 * 335.57286 * 24 22 20 28 28 C 1.43335 * 118.79540 * 289.61855 * 19 18 17 29 29 H 1.09006 * 109.47102 * 59.99966 * 1 2 3 30 30 H 1.08997 * 109.47245 * 179.97438 * 1 2 3 31 31 H 1.08998 * 109.47419 * 300.00379 * 1 2 3 32 32 H 1.09001 * 109.46870 * 59.99785 * 3 2 1 33 33 H 1.09001 * 109.47026 * 179.97438 * 3 2 1 34 34 H 1.08997 * 109.46967 * 300.00154 * 3 2 1 35 35 H 1.08996 * 109.21128 * 201.68248 * 4 2 1 36 36 H 1.09000 * 109.20929 * 320.99711 * 4 2 1 37 37 H 0.97002 * 119.99998 * 335.00459 * 7 5 4 38 38 H 1.09010 * 109.51703 * 303.06129 * 12 10 8 39 39 H 1.08998 * 109.52711 * 63.24095 * 12 10 8 40 40 H 1.09004 * 109.40396 * 297.48974 * 13 12 10 41 41 H 1.09000 * 109.49370 * 177.50453 * 13 12 10 42 42 H 1.09003 * 109.47538 * 301.17782 * 15 14 13 43 43 H 1.08994 * 109.48917 * 181.14554 * 15 14 13 44 44 H 1.09000 * 109.51904 * 182.48741 * 16 15 14 45 45 H 1.08994 * 109.51914 * 62.29977 * 16 15 14 46 46 H 1.09000 * 108.52196 * 31.83464 * 17 5 4 47 47 H 1.09001 * 108.52425 * 149.50177 * 17 5 4 48 48 H 1.08998 * 109.84367 * 177.92094 * 18 17 5 49 49 H 1.08997 * 109.84368 * 298.83530 * 18 17 5 50 50 H 0.97001 * 120.00518 * 179.97438 * 23 22 20 51 51 H 1.09003 * 108.25022 * 329.92654 * 28 19 18 52 52 H 1.08997 * 108.00555 * 213.39355 * 28 19 18 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 1.5299 0.0000 0.0000 3 6 2.0371 1.4436 0.0000 4 6 2.0433 -0.7243 1.2687 5 6 2.0207 -2.2134 1.0787 6 1 1.3254 -2.4817 0.2833 7 7 1.6418 -2.8782 2.3279 8 6 1.0766 -4.1014 2.2958 9 8 0.8821 -4.6518 1.2328 10 6 0.6874 -4.7855 3.5808 11 9 -0.1587 -3.9501 4.3181 12 6 1.9451 -5.0921 4.3996 13 6 1.5473 -5.8585 5.6639 14 8 0.8511 -7.0519 5.2987 15 6 -0.3585 -6.8230 4.5731 16 6 -0.0369 -6.0974 3.2639 17 6 3.4446 -2.5935 0.6857 18 6 3.6999 -2.5614 -0.7539 19 7 3.4056 -1.1696 -1.2347 20 6 4.4211 -0.3415 -1.6322 21 1 5.3513 -0.3260 -1.0836 22 6 4.2550 0.4779 -2.7402 23 7 4.9814 1.5682 -2.8673 24 14 3.0008 0.0333 -4.0512 25 1 1.7300 0.7542 -3.7851 26 1 3.5208 0.4232 -5.3864 27 1 2.7543 -1.4309 -4.0242 28 6 2.0435 -0.7246 -1.2691 29 1 -0.3633 0.5139 -0.8900 30 1 -0.3633 -1.0276 -0.0005 31 1 -0.3634 0.5139 0.8899 32 1 1.6727 1.9567 0.8900 33 1 3.1272 1.4457 0.0005 34 1 1.6728 1.9566 -0.8900 35 1 3.0645 -0.4046 1.4757 36 1 1.4075 -0.4610 2.1140 37 1 1.7976 -2.4381 3.1782 38 1 2.6269 -5.7009 3.8055 39 1 2.4359 -4.1592 4.6767 40 1 0.8991 -5.2329 6.2776 41 1 2.4427 -6.1182 6.2286 42 1 -1.0315 -6.2101 5.1726 43 1 -0.8360 -7.7775 4.3519 44 1 -0.9625 -5.8827 2.7297 45 1 0.6035 -6.7271 2.6464 46 1 4.1342 -1.9057 1.1750 47 1 3.6467 -3.6012 1.0486 48 1 4.7434 -2.8079 -0.9502 49 1 3.0498 -3.2744 -1.2610 50 1 4.8656 2.1407 -3.6418 51 1 1.4059 -1.5906 -1.4472 52 1 1.9316 -0.0473 -2.1158 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) F: (AM1): M.J.S. DEWAR AND E. G. ZOEBISCH, THEOCHEM, 180, 1 (1988). 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 ZINC001089403885.mol2 52 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Wed Apr 1 2020 02:30:16 Heat of formation + Delta-G solvation = -110.975598 kcal Electronic energy + Delta-G solvation = -32869.436209 eV Core-core repulsion = 28590.889903 eV Total energy + Delta-G solvation = -4278.546305 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 342.211 amu Computer time = 4.55 seconds Orbital eigenvalues (eV) -48.30669 -40.30659 -39.22266 -38.33754 -35.07511 -34.36663 -33.53412 -32.33846 -31.63928 -30.68028 -27.98692 -26.69487 -26.21645 -25.65390 -24.19491 -23.81393 -22.20106 -21.13149 -20.21155 -20.13728 -18.70850 -17.85567 -17.03360 -16.61718 -16.44384 -16.22074 -15.88317 -15.51515 -15.26410 -15.00330 -14.82434 -14.52788 -14.32021 -13.94692 -13.57813 -13.30548 -13.08309 -12.96181 -12.88795 -12.80501 -12.72023 -12.54379 -12.17390 -12.01839 -11.87505 -11.83436 -11.53610 -11.33589 -11.12099 -11.01084 -10.91979 -10.72002 -10.55432 -10.48763 -10.36050 -10.24439 -9.94252 -9.85307 -9.69534 -9.62800 -9.45412 -8.96775 -8.44240 -6.73922 -6.01768 -3.43630 2.32014 2.86445 3.33157 3.44471 3.47850 3.55401 3.84966 3.95223 4.26113 4.33250 4.43978 4.53651 4.76822 4.84557 4.91935 5.02986 5.12861 5.15238 5.24152 5.24629 5.25917 5.27977 5.37939 5.47348 5.60409 5.63484 5.69729 5.77026 5.77871 5.97508 6.05941 6.11905 6.16104 6.18824 6.31284 6.38896 6.43972 6.51884 6.63701 6.68355 6.69739 6.72928 6.77434 6.83213 6.90307 6.99581 7.26402 7.38358 8.01793 8.08547 8.35244 9.01160 9.71387 10.17085 11.13429 Molecular weight = 342.21amu Principal moments of inertia in cm(-1) A = 0.022064 B = 0.002997 C = 0.002923 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1268.704705 B = 9339.069177 C = 9577.170275 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.138 4.138 2 C -0.083 4.083 3 C -0.127 4.127 4 C -0.104 4.104 5 C 0.146 3.854 6 H 0.096 0.904 7 N -0.708 5.708 8 C 0.500 3.500 9 O -0.519 6.519 10 C 0.106 3.894 11 F -0.193 7.193 12 C -0.175 4.175 13 C 0.062 3.938 14 O -0.379 6.379 15 C 0.060 3.940 16 C -0.160 4.160 17 C -0.136 4.136 18 C 0.138 3.862 19 N -0.597 5.597 20 C -0.265 4.265 21 H 0.075 0.925 22 C 0.046 3.954 23 N -0.895 5.895 24 Si 0.870 3.130 25 H -0.285 1.285 26 H -0.302 1.302 27 H -0.270 1.270 28 C 0.157 3.843 29 H 0.051 0.949 30 H 0.047 0.953 31 H 0.048 0.952 32 H 0.032 0.968 33 H 0.078 0.922 34 H 0.045 0.955 35 H 0.076 0.924 36 H 0.050 0.950 37 H 0.398 0.602 38 H 0.098 0.902 39 H 0.092 0.908 40 H 0.059 0.941 41 H 0.104 0.896 42 H 0.058 0.942 43 H 0.104 0.896 44 H 0.092 0.908 45 H 0.100 0.900 46 H 0.066 0.934 47 H 0.046 0.954 48 H 0.069 0.931 49 H 0.033 0.967 50 H 0.263 0.737 51 H 0.028 0.972 52 H 0.044 0.956 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -9.379 -11.807 17.276 22.931 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 -0.196 4.196 2 C -0.087 4.087 3 C -0.185 4.185 4 C -0.142 4.142 5 C 0.043 3.957 6 H 0.114 0.886 7 N -0.358 5.358 8 C 0.282 3.718 9 O -0.394 6.394 10 C 0.084 3.916 11 F -0.173 7.173 12 C -0.213 4.213 13 C -0.014 4.014 14 O -0.298 6.298 15 C -0.017 4.017 16 C -0.198 4.198 17 C -0.176 4.176 18 C 0.013 3.987 19 N -0.320 5.320 20 C -0.394 4.394 21 H 0.092 0.908 22 C -0.155 4.155 23 N -0.536 5.536 24 Si 0.700 3.300 25 H -0.213 1.213 26 H -0.230 1.230 27 H -0.194 1.194 28 C 0.029 3.971 29 H 0.070 0.930 30 H 0.066 0.934 31 H 0.067 0.933 32 H 0.051 0.949 33 H 0.097 0.903 34 H 0.064 0.936 35 H 0.095 0.905 36 H 0.069 0.931 37 H 0.233 0.767 38 H 0.116 0.884 39 H 0.110 0.890 40 H 0.078 0.922 41 H 0.122 0.878 42 H 0.076 0.924 43 H 0.122 0.878 44 H 0.111 0.889 45 H 0.119 0.881 46 H 0.084 0.916 47 H 0.064 0.936 48 H 0.088 0.912 49 H 0.051 0.949 50 H 0.073 0.927 51 H 0.046 0.954 52 H 0.062 0.938 Dipole moment (debyes) X Y Z Total from point charges -9.371 -12.216 16.426 22.513 hybrid contribution -0.788 0.628 -0.469 1.111 sum -10.158 -11.588 15.956 22.183 Atomic orbital electron populations 1.21867 0.95904 1.00811 1.01025 1.21834 0.93476 0.96709 0.96684 1.21727 1.03399 0.93988 0.99359 1.21803 1.02189 0.92544 0.97627 1.20468 0.97283 0.92704 0.85220 0.88593 1.46246 1.61210 1.17690 1.10685 1.20571 0.78461 0.82289 0.90432 1.90751 1.53764 1.64177 1.30718 1.21246 0.90745 0.90140 0.89450 1.92899 1.72715 1.73378 1.78343 1.22815 0.96373 1.03379 0.98710 1.22568 0.97506 0.86771 0.94605 1.87963 1.37207 1.30199 1.74398 1.22641 0.86753 1.01326 0.90966 1.22581 1.03012 0.94525 0.99701 1.21304 0.95571 1.00353 1.00367 1.20385 0.99901 0.86954 0.91416 1.44158 1.02518 1.09103 1.76181 1.18639 0.96384 1.16471 1.07866 0.90767 1.25472 0.96692 0.96335 0.97050 1.69880 1.42474 1.11626 1.29589 0.87020 0.81226 0.79627 0.82157 1.21317 1.22986 1.19430 1.20760 0.86172 0.95993 0.94183 0.93004 0.93406 0.93289 0.94858 0.90311 0.93565 0.90512 0.93123 0.76746 0.88382 0.88950 0.92249 0.87788 0.92393 0.87807 0.88906 0.88116 0.91551 0.93578 0.91228 0.94862 0.92750 0.95375 0.93801 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 17. 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 -0.14 -2.16 8.21 37.15 0.30 -1.86 16 2 C -0.08 -1.49 0.77 -152.53 -0.12 -1.60 16 3 C -0.13 -2.42 8.29 37.16 0.31 -2.12 16 4 C -0.10 -1.61 4.15 -27.19 -0.11 -1.73 16 5 C 0.15 2.25 2.16 -69.60 -0.15 2.10 16 6 H 0.10 1.73 5.14 -51.93 -0.27 1.46 16 7 N -0.71 -8.88 4.92 -55.45 -0.27 -9.15 16 8 C 0.50 6.65 6.82 -10.99 -0.07 6.58 16 9 O -0.52 -8.76 15.59 5.56 0.09 -8.67 16 10 C 0.11 1.09 1.07 -91.59 -0.10 0.99 16 11 F -0.19 -2.06 16.06 2.25 0.04 -2.02 16 12 C -0.17 -1.41 5.17 -26.59 -0.14 -1.55 16 13 C 0.06 0.46 6.72 37.21 0.25 0.71 16 14 O -0.38 -3.53 10.77 -35.23 -0.38 -3.90 16 15 C 0.06 0.48 6.72 37.21 0.25 0.73 16 16 C -0.16 -1.54 4.56 -26.59 -0.12 -1.67 16 17 C -0.14 -2.24 4.92 -30.19 -0.15 -2.39 16 18 C 0.14 2.69 6.11 -5.20 -0.03 2.65 16 19 N -0.60 -13.51 2.13 -175.16 -0.37 -13.89 16 20 C -0.27 -7.01 9.23 -15.06 -0.14 -7.14 16 21 H 0.07 2.12 8.06 -52.49 -0.42 1.70 16 22 C 0.05 1.27 5.29 -17.43 -0.09 1.18 16 23 N -0.90 -26.29 13.97 55.49 0.78 -25.52 16 24 Si 0.87 22.08 25.25 -169.99 -4.29 17.79 16 25 H -0.29 -7.10 6.74 56.52 0.38 -6.72 16 26 H -0.30 -7.80 7.11 56.52 0.40 -7.40 16 27 H -0.27 -6.85 7.11 56.52 0.40 -6.45 16 28 C 0.16 3.34 3.04 -4.71 -0.01 3.33 16 29 H 0.05 0.81 8.14 -51.93 -0.42 0.39 16 30 H 0.05 0.73 7.57 -51.93 -0.39 0.34 16 31 H 0.05 0.68 8.13 -51.93 -0.42 0.26 16 32 H 0.03 0.54 8.14 -51.93 -0.42 0.12 16 33 H 0.08 1.74 7.44 -51.93 -0.39 1.35 16 34 H 0.05 0.92 8.13 -51.93 -0.42 0.50 16 35 H 0.08 1.29 6.65 -51.93 -0.35 0.95 16 36 H 0.05 0.69 7.68 -51.93 -0.40 0.29 16 37 H 0.40 4.00 8.41 -40.82 -0.34 3.66 16 38 H 0.10 0.83 8.14 -51.92 -0.42 0.40 16 39 H 0.09 0.61 8.03 -51.93 -0.42 0.20 16 40 H 0.06 0.41 7.93 -51.93 -0.41 0.00 16 41 H 0.10 0.58 8.14 -51.93 -0.42 0.16 16 42 H 0.06 0.44 7.93 -51.93 -0.41 0.03 16 43 H 0.10 0.66 8.14 -51.93 -0.42 0.24 16 44 H 0.09 0.91 8.14 -51.93 -0.42 0.49 16 45 H 0.10 1.04 7.96 -51.93 -0.41 0.63 16 46 H 0.07 1.12 6.93 -51.93 -0.36 0.76 16 47 H 0.05 0.71 8.02 -51.93 -0.42 0.29 16 48 H 0.07 1.35 7.99 -51.93 -0.42 0.94 16 49 H 0.03 0.66 8.12 -51.93 -0.42 0.23 16 50 H 0.26 7.40 8.31 -40.82 -0.34 7.06 16 51 H 0.03 0.58 6.67 -51.93 -0.35 0.24 16 52 H 0.04 1.05 3.24 -51.93 -0.17 0.88 16 LS Contribution 390.06 15.07 5.88 5.88 Total: -1.00 -30.73 390.06 -7.54 -38.27 By element: Atomic # 1 Polarization: 11.86 SS G_CDS: -8.87 Total: 2.99 kcal Atomic # 6 Polarization: -1.65 SS G_CDS: -0.12 Total: -1.77 kcal Atomic # 7 Polarization: -48.68 SS G_CDS: 0.13 Total: -48.55 kcal Atomic # 8 Polarization: -12.28 SS G_CDS: -0.29 Total: -12.58 kcal Atomic # 9 Polarization: -2.06 SS G_CDS: 0.04 Total: -2.02 kcal Atomic # 14 Polarization: 22.08 SS G_CDS: -4.29 Total: 17.79 kcal Total LS contribution 5.88 Total: 5.88 kcal Total: -30.73 -7.54 -38.27 kcal The number of atoms in the molecule is 52 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. ZINC001089403885.mol2 52 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 -72.708 kcal (2) G-P(sol) polarization free energy of solvation -30.726 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -103.434 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -7.542 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -38.268 kcal (6) G-S(sol) free energy of system = (1) + (5) -110.976 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 4.55 seconds