Wall clock time and date at job start Wed Apr 1 2020 00:23:27 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 O 1.42903 * 1 3 3 C 1.42904 * 113.99669 * 2 1 4 4 H 1.08994 * 109.47266 * 29.99082 * 3 2 1 5 5 C 1.53006 * 109.46779 * 269.99643 * 3 2 1 6 6 C 1.52992 * 109.47150 * 150.00049 * 3 2 1 7 7 C 1.50703 * 109.47172 * 294.99387 * 6 3 2 8 8 O 1.21276 * 119.99539 * 0.02562 * 7 6 3 9 9 N 1.34778 * 119.99953 * 179.97438 * 7 6 3 10 10 C 1.47151 * 120.98688 * 359.72036 * 9 7 6 11 11 C 1.52882 * 108.59713 * 230.55090 * 10 9 7 12 12 H 1.08997 * 109.36437 * 67.78402 * 11 10 9 13 13 C 1.53003 * 109.61775 * 187.85781 * 11 10 9 14 14 O 1.42968 * 109.30954 * 307.89593 * 11 10 9 15 15 C 1.42896 * 114.20629 * 62.35491 * 14 11 10 16 16 C 1.52987 * 109.55963 * 57.46716 * 15 14 11 17 17 C 1.53201 * 109.34641 * 59.04484 * 16 15 14 18 18 N 1.46933 * 108.77357 * 54.56756 * 17 16 15 19 19 C 1.36941 * 120.63888 * 126.35304 * 18 17 16 20 20 H 1.08000 * 119.99646 * 207.66044 * 19 18 17 21 21 C 1.38809 * 119.99900 * 27.66656 * 19 18 17 22 22 N 1.31618 * 120.00379 * 17.37688 * 21 19 18 23 23 Si 1.86805 * 119.99600 * 197.38471 * 21 19 18 24 24 H 1.48497 * 109.47147 * 359.97438 * 23 21 19 25 25 H 1.48494 * 109.47390 * 119.99992 * 23 21 19 26 26 H 1.48507 * 109.46580 * 239.99556 * 23 21 19 27 27 C 1.46929 * 118.71962 * 306.33424 * 18 17 16 28 28 C 1.52992 * 109.55070 * 177.77465 * 15 14 11 29 29 C 1.47152 * 120.98222 * 180.02562 * 9 7 6 30 30 H 1.08999 * 109.47189 * 60.00663 * 1 2 3 31 31 H 1.09003 * 109.46786 * 180.02562 * 1 2 3 32 32 H 1.08997 * 109.46995 * 300.00265 * 1 2 3 33 33 H 1.08998 * 109.47289 * 179.97438 * 5 3 2 34 34 H 1.09006 * 109.47312 * 300.00160 * 5 3 2 35 35 H 1.09006 * 109.47031 * 60.00084 * 5 3 2 36 36 H 1.09000 * 109.47315 * 54.99657 * 6 3 2 37 37 H 1.08999 * 109.47142 * 174.99481 * 6 3 2 38 38 H 1.08999 * 109.68689 * 350.33058 * 10 9 7 39 39 H 1.09005 * 109.68079 * 110.89011 * 10 9 7 40 40 H 1.08996 * 109.46599 * 179.91519 * 13 11 10 41 41 H 1.08995 * 109.47154 * 299.91961 * 13 11 10 42 42 H 1.08998 * 109.47153 * 59.91760 * 13 11 10 43 43 H 1.09004 * 109.49256 * 179.00300 * 16 15 14 44 44 H 1.08998 * 109.49720 * 299.08355 * 16 15 14 45 45 H 1.08997 * 109.58790 * 294.78458 * 17 16 15 46 46 H 1.09000 * 109.58775 * 174.35480 * 17 16 15 47 47 H 0.96997 * 120.00269 * 180.02562 * 22 21 19 48 48 H 1.09001 * 109.58257 * 293.88034 * 27 18 17 49 49 H 1.08998 * 109.58454 * 173.46289 * 27 18 17 50 50 H 1.09000 * 109.49261 * 60.91591 * 28 15 14 51 51 H 1.08998 * 109.49210 * 180.99367 * 28 15 14 52 52 H 1.09001 * 109.67857 * 249.22747 * 29 9 7 53 53 H 1.08992 * 109.68007 * 9.77747 * 29 9 7 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 8 1.4290 0.0000 0.0000 3 6 2.0102 1.3055 0.0000 4 1 1.3449 1.9994 0.5137 5 6 2.2177 1.7714 -1.4426 6 6 3.3588 1.2634 0.7212 7 6 3.1415 0.9239 2.1733 8 8 2.0186 0.7338 2.5901 9 7 4.1952 0.8304 3.0085 10 6 5.5674 1.0496 2.5244 11 6 6.4368 -0.1244 2.9750 12 1 6.1245 -1.0276 2.4507 13 6 7.9038 0.1704 2.6557 14 8 6.2833 -0.3129 4.3839 15 6 4.9550 -0.6503 4.7886 16 6 4.5065 -1.9215 4.0652 17 6 5.4701 -3.0639 4.4019 18 7 5.5533 -3.1973 5.8628 19 6 5.3203 -4.4035 6.4678 20 1 4.9448 -4.4363 7.4799 21 6 5.5670 -5.5839 5.7804 22 7 6.3284 -5.5736 4.7068 23 14 4.8180 -7.1872 6.3788 24 1 4.0088 -6.9310 7.5973 25 1 3.9487 -7.7543 5.3169 26 1 5.9018 -8.1509 6.6984 27 6 5.8918 -2.0117 6.6619 28 6 4.9236 -0.8809 6.3007 29 6 4.0081 0.4997 4.4301 30 1 -0.3633 0.5137 -0.8900 31 1 -0.3633 -1.0277 0.0005 32 1 -0.3633 0.5139 0.8899 33 1 2.6605 2.7673 -1.4427 34 1 2.8830 1.0774 -1.9564 35 1 1.2568 1.8013 -1.9565 36 1 3.9931 0.5053 0.2617 37 1 3.8426 2.2371 0.6442 38 1 5.5678 1.1087 1.4360 39 1 5.9609 1.9760 2.9430 40 1 8.5214 -0.6674 2.9793 41 1 8.0201 0.3140 1.5815 42 1 8.2149 1.0745 3.1789 43 1 3.4999 -2.1877 4.3880 44 1 4.5098 -1.7481 2.9891 45 1 6.4576 -2.8398 3.9986 46 1 5.0994 -3.9938 3.9706 47 1 6.5004 -6.3984 4.2262 48 1 6.9135 -1.7023 6.4418 49 1 5.7995 -2.2472 7.7221 50 1 5.2235 0.0326 6.8142 51 1 3.9138 -1.1553 6.6058 52 1 4.2402 1.3705 5.0432 53 1 2.9766 0.1929 4.6028 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 ZINC001111538448.mol2 53 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 00:23:27 Heat of formation + Delta-G solvation = -100.004608 kcal Electronic energy + Delta-G solvation = -32710.889518 eV Core-core repulsion = 28583.590735 eV Total energy + Delta-G solvation = -4127.298784 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 1.35 seconds Orbital eigenvalues (eV) -40.69033 -39.13894 -37.77574 -36.34123 -34.50229 -33.62632 -32.92763 -31.46004 -30.13801 -29.74897 -28.62670 -26.99563 -26.57362 -25.95533 -24.01468 -22.58757 -21.85992 -21.57509 -20.60889 -19.09298 -18.86002 -17.26546 -17.00551 -16.89168 -16.33458 -15.57850 -15.40244 -15.17112 -14.88713 -14.75433 -14.57680 -14.26160 -13.75426 -13.59795 -13.43746 -13.20872 -13.13275 -12.99065 -12.79015 -12.54231 -12.33650 -12.29520 -12.14504 -11.91266 -11.75168 -11.50901 -11.45702 -11.39764 -11.35837 -10.98814 -10.86758 -10.71468 -10.51011 -10.30127 -10.20579 -10.05718 -9.80236 -9.71666 -9.65549 -9.43913 -9.24830 -8.40258 -8.29347 -6.58722 -5.72324 -3.13467 2.67228 2.92332 3.41341 3.49143 3.51422 3.68170 3.93315 4.35179 4.54550 4.55632 4.75143 4.88312 4.93757 5.03062 5.14598 5.18950 5.20454 5.21886 5.30492 5.33052 5.39933 5.43105 5.44454 5.45160 5.52020 5.57472 5.65765 5.68710 5.69667 5.71799 5.85113 5.89786 5.94219 6.07565 6.13001 6.23746 6.34102 6.40624 6.48532 6.52439 6.62881 6.73052 6.88006 7.11269 7.13798 7.39898 7.45656 7.63774 7.75577 7.85809 8.21425 8.51681 9.28427 9.92594 10.50144 11.36142 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.011973 B = 0.003546 C = 0.003115 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2337.964595 B = 7895.134118 C = 8985.864431 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.038 3.962 2 O -0.374 6.374 3 C 0.100 3.900 4 H 0.067 0.933 5 C -0.175 4.175 6 C -0.140 4.140 7 C 0.519 3.481 8 O -0.533 6.533 9 N -0.612 5.612 10 C 0.079 3.921 11 C 0.069 3.931 12 H 0.069 0.931 13 C -0.141 4.141 14 O -0.356 6.356 15 C 0.119 3.881 16 C -0.159 4.159 17 C 0.181 3.819 18 N -0.591 5.591 19 C -0.249 4.249 20 H 0.066 0.934 21 C 0.001 3.999 22 N -0.902 5.902 23 Si 0.900 3.100 24 H -0.278 1.278 25 H -0.290 1.290 26 H -0.291 1.291 27 C 0.152 3.848 28 C -0.117 4.117 29 C 0.090 3.910 30 H 0.034 0.966 31 H 0.082 0.918 32 H 0.045 0.955 33 H 0.065 0.935 34 H 0.065 0.935 35 H 0.059 0.941 36 H 0.102 0.898 37 H 0.103 0.897 38 H 0.088 0.912 39 H 0.074 0.926 40 H 0.071 0.929 41 H 0.067 0.933 42 H 0.061 0.939 43 H 0.062 0.938 44 H 0.049 0.951 45 H 0.021 0.979 46 H 0.084 0.916 47 H 0.252 0.748 48 H 0.027 0.973 49 H 0.052 0.948 50 H 0.058 0.942 51 H 0.072 0.928 52 H 0.067 0.933 53 H 0.097 0.903 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -3.736 18.569 -10.892 21.849 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 -0.058 4.058 2 O -0.293 6.293 3 C 0.042 3.958 4 H 0.085 0.915 5 C -0.232 4.232 6 C -0.180 4.180 7 C 0.307 3.693 8 O -0.409 6.409 9 N -0.346 5.346 10 C -0.044 4.044 11 C 0.010 3.990 12 H 0.087 0.913 13 C -0.198 4.198 14 O -0.275 6.275 15 C 0.079 3.921 16 C -0.198 4.198 17 C 0.055 3.945 18 N -0.314 5.314 19 C -0.379 4.379 20 H 0.083 0.917 21 C -0.197 4.197 22 N -0.547 5.547 23 Si 0.730 3.270 24 H -0.203 1.203 25 H -0.216 1.216 26 H -0.218 1.218 27 C 0.025 3.975 28 C -0.157 4.157 29 C -0.032 4.032 30 H 0.052 0.948 31 H 0.101 0.899 32 H 0.064 0.936 33 H 0.084 0.916 34 H 0.084 0.916 35 H 0.078 0.922 36 H 0.120 0.880 37 H 0.121 0.879 38 H 0.107 0.893 39 H 0.092 0.908 40 H 0.090 0.910 41 H 0.086 0.914 42 H 0.080 0.920 43 H 0.081 0.919 44 H 0.068 0.932 45 H 0.039 0.961 46 H 0.102 0.898 47 H 0.062 0.938 48 H 0.045 0.955 49 H 0.071 0.929 50 H 0.077 0.923 51 H 0.091 0.909 52 H 0.085 0.915 53 H 0.115 0.885 Dipole moment (debyes) X Y Z Total from point charges -4.044 18.172 -10.622 21.433 hybrid contribution -0.671 -0.625 -0.067 0.919 sum -4.715 17.547 -10.689 21.080 Atomic orbital electron populations 1.22693 0.81044 1.02576 0.99503 1.87927 1.19776 1.26691 1.94897 1.21771 0.93509 0.86027 0.94517 0.91526 1.22306 1.02620 1.01548 0.96754 1.21881 0.99185 1.04130 0.92815 1.20476 0.84321 0.76715 0.87747 1.90675 1.22989 1.49650 1.77627 1.48122 1.06357 1.70202 1.09961 1.22442 0.82088 0.99750 1.00131 1.22304 0.95620 0.96538 0.84498 0.91269 1.21691 0.94078 1.03033 1.01027 1.88002 1.28723 1.89894 1.20911 1.21710 0.81692 0.92497 0.96232 1.22691 1.01910 0.96940 0.98281 1.20640 0.94382 0.95125 0.84351 1.44049 1.80570 1.05118 1.01678 1.19237 1.36352 0.82946 0.99354 0.91677 1.25016 0.98287 0.97714 0.98718 1.70048 1.37576 1.26336 1.20742 0.86261 0.78719 0.83922 0.78127 1.20276 1.21642 1.21800 1.20784 0.94865 0.86895 0.94942 1.21991 1.02038 1.00090 0.91575 1.22415 1.02238 0.98286 0.80310 0.94784 0.89925 0.93621 0.91583 0.91560 0.92190 0.87956 0.87883 0.89347 0.90773 0.90984 0.91365 0.92001 0.91878 0.93242 0.96096 0.89774 0.93824 0.95506 0.92947 0.92303 0.90903 0.91480 0.88497 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 0.04 0.42 10.82 101.05 1.09 1.52 16 2 O -0.37 -5.06 9.58 -49.66 -0.48 -5.53 16 3 C 0.10 1.06 2.27 -26.73 -0.06 1.00 16 4 H 0.07 0.73 7.60 -51.93 -0.39 0.33 16 5 C -0.17 -1.33 9.53 37.16 0.35 -0.98 16 6 C -0.14 -1.42 3.79 -27.89 -0.11 -1.53 16 7 C 0.52 7.40 7.59 -10.98 -0.08 7.31 16 8 O -0.53 -9.45 14.89 -8.87 -0.13 -9.59 16 9 N -0.61 -8.44 2.53 -172.57 -0.44 -8.87 16 10 C 0.08 0.88 5.81 -3.75 -0.02 0.85 16 11 C 0.07 0.96 3.00 -26.79 -0.08 0.88 16 12 H 0.07 1.09 6.29 -51.93 -0.33 0.77 16 13 C -0.14 -1.58 9.57 37.16 0.36 -1.22 16 14 O -0.36 -6.15 8.64 -35.23 -0.30 -6.45 16 15 C 0.12 2.08 0.68 -90.52 -0.06 2.02 16 16 C -0.16 -3.24 4.33 -26.63 -0.12 -3.36 16 17 C 0.18 4.46 5.08 -3.70 -0.02 4.44 16 18 N -0.59 -15.20 2.99 -172.31 -0.52 -15.72 16 19 C -0.25 -6.99 9.59 -15.06 -0.14 -7.13 16 20 H 0.07 1.79 7.89 -52.49 -0.41 1.38 16 21 C 0.00 0.03 4.91 -17.43 -0.09 -0.06 16 22 N -0.90 -26.68 11.19 55.49 0.62 -26.05 16 23 Si 0.90 22.17 29.59 -169.99 -5.03 17.14 16 24 H -0.28 -6.68 7.11 56.52 0.40 -6.28 16 25 H -0.29 -7.18 7.11 56.52 0.40 -6.78 16 26 H -0.29 -7.20 7.11 56.52 0.40 -6.79 16 27 C 0.15 3.29 6.28 -3.71 -0.02 3.26 16 28 C -0.12 -2.10 5.10 -26.64 -0.14 -2.24 16 29 C 0.09 1.39 5.29 -3.57 -0.02 1.37 16 30 H 0.03 0.30 7.87 -51.93 -0.41 -0.11 16 31 H 0.08 0.86 8.14 -51.93 -0.42 0.44 16 32 H 0.05 0.53 8.08 -51.93 -0.42 0.11 16 33 H 0.07 0.38 8.14 -51.93 -0.42 -0.04 16 34 H 0.07 0.51 8.14 -51.93 -0.42 0.09 16 35 H 0.06 0.44 7.87 -51.93 -0.41 0.03 16 36 H 0.10 0.99 7.65 -51.93 -0.40 0.59 16 37 H 0.10 0.72 8.03 -51.93 -0.42 0.30 16 38 H 0.09 0.73 6.05 -51.93 -0.31 0.41 16 39 H 0.07 0.73 8.14 -51.93 -0.42 0.31 16 40 H 0.07 0.94 8.14 -51.93 -0.42 0.51 16 41 H 0.07 0.58 8.14 -51.93 -0.42 0.16 16 42 H 0.06 0.63 8.14 -51.93 -0.42 0.21 16 43 H 0.06 1.37 8.14 -51.93 -0.42 0.95 16 44 H 0.05 0.97 6.15 -51.93 -0.32 0.65 16 45 H 0.02 0.55 7.83 -51.93 -0.41 0.14 16 46 H 0.08 2.35 6.03 -51.93 -0.31 2.04 16 47 H 0.25 7.18 8.31 -40.82 -0.34 6.84 16 48 H 0.03 0.61 7.83 -51.93 -0.41 0.20 16 49 H 0.05 1.10 7.93 -51.93 -0.41 0.69 16 50 H 0.06 0.92 8.14 -51.93 -0.42 0.49 16 51 H 0.07 1.31 8.14 -51.93 -0.42 0.89 16 52 H 0.07 0.95 8.14 -51.93 -0.42 0.52 16 53 H 0.10 1.64 7.07 -51.93 -0.37 1.28 16 LS Contribution 402.39 15.07 6.06 6.06 Total: -1.00 -33.68 402.39 -8.87 -42.55 By element: Atomic # 1 Polarization: 9.84 SS G_CDS: -9.51 Total: 0.32 kcal Atomic # 6 Polarization: 5.29 SS G_CDS: 0.85 Total: 6.14 kcal Atomic # 7 Polarization: -50.31 SS G_CDS: -0.33 Total: -50.65 kcal Atomic # 8 Polarization: -20.66 SS G_CDS: -0.91 Total: -21.57 kcal Atomic # 14 Polarization: 22.17 SS G_CDS: -5.03 Total: 17.14 kcal Total LS contribution 6.06 Total: 6.06 kcal Total: -33.68 -8.87 -42.55 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. ZINC001111538448.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 -57.456 kcal (2) G-P(sol) polarization free energy of solvation -33.677 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -91.132 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.872 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -42.549 kcal (6) G-S(sol) free energy of system = (1) + (5) -100.005 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.35 seconds