Wall clock time and date at job start Tue Mar 31 2020 21:11:25 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 N 2 2 C 1.31625 * 1 3 3 Si 1.86797 * 119.99728 * 2 1 4 4 H 1.48501 * 109.46932 * 239.99989 * 3 2 1 5 5 H 1.48499 * 109.47164 * 359.97438 * 3 2 1 6 6 H 1.48501 * 109.47201 * 120.00461 * 3 2 1 7 7 C 1.38810 * 120.00011 * 179.97438 * 2 1 3 8 8 H 1.07999 * 120.00089 * 179.97438 * 7 2 1 9 9 N 1.36938 * 119.99979 * 359.97438 * 7 2 1 10 10 C 1.47751 * 125.82414 * 11.46547 * 9 7 2 11 11 C 1.54906 * 104.84224 * 155.82923 * 10 9 7 12 12 C 1.55159 * 101.58131 * 37.09345 * 11 10 9 13 13 C 1.47020 * 125.64858 * 191.55752 * 9 7 2 14 14 H 1.09000 * 109.88071 * 300.59271 * 13 9 7 15 15 C 1.52990 * 109.88528 * 61.60680 * 13 9 7 16 16 H 1.09000 * 109.49976 * 296.51397 * 15 13 9 17 17 C 1.53042 * 109.52580 * 56.59516 * 15 13 9 18 18 C 1.53036 * 109.53933 * 181.33602 * 17 15 13 19 19 C 1.53621 * 109.24182 * 298.50550 * 18 17 15 20 20 N 1.46935 * 108.54197 * 54.86088 * 19 18 17 21 21 C 1.34768 * 120.62955 * 126.36695 * 20 19 18 22 22 O 1.21284 * 119.99702 * 184.71147 * 21 20 19 23 23 C 1.50699 * 120.00457 * 4.43334 * 21 20 19 24 24 C 1.52996 * 112.85017 * 63.35672 * 23 21 20 25 25 F 1.39897 * 109.47430 * 174.54047 * 24 23 21 26 26 C 1.53785 * 113.61259 * 292.16182 * 23 21 20 27 27 C 1.53955 * 87.01887 * 220.04627 * 26 23 21 28 28 C 1.53782 * 87.11261 * 25.36510 * 27 26 23 29 29 C 1.46927 * 118.73287 * 306.09327 * 20 19 18 30 30 H 0.96997 * 119.99796 * 359.97438 * 1 2 3 31 31 H 1.09003 * 110.29059 * 37.02235 * 10 9 7 32 32 H 1.09001 * 110.43147 * 274.70968 * 10 9 7 33 33 H 1.08999 * 111.00659 * 279.01710 * 11 10 9 34 34 H 1.08995 * 111.03666 * 155.18306 * 11 10 9 35 35 H 1.09003 * 110.71978 * 206.13384 * 12 11 10 36 36 H 1.09002 * 110.71811 * 82.86510 * 12 11 10 37 37 H 1.09005 * 109.45906 * 301.35816 * 17 15 13 38 38 H 1.09003 * 109.45888 * 61.31064 * 17 15 13 39 39 H 1.08996 * 109.50078 * 58.59015 * 18 17 15 40 40 H 1.09008 * 109.49766 * 178.65052 * 18 17 15 41 41 H 1.09003 * 109.74593 * 295.12386 * 19 18 17 42 42 H 1.09002 * 109.66650 * 174.54633 * 19 18 17 43 43 H 1.09000 * 109.46892 * 294.54174 * 24 23 21 44 44 H 1.09007 * 109.46898 * 54.53751 * 24 23 21 45 45 H 1.08991 * 113.61451 * 334.56568 * 26 23 21 46 46 H 1.09001 * 113.61420 * 105.47159 * 26 23 21 47 47 H 1.09003 * 113.53871 * 270.81604 * 27 26 23 48 48 H 1.08996 * 113.74341 * 139.94834 * 27 26 23 49 49 H 1.09005 * 113.61678 * 220.09525 * 28 27 26 50 50 H 1.08992 * 113.61829 * 89.18376 * 28 27 26 51 51 H 1.09004 * 109.58437 * 173.64750 * 29 20 19 52 52 H 1.08999 * 109.58556 * 294.06775 * 29 20 19 Note: An asterisk (*) indicates this parameter was or will be optimized. Cartesian coordinates (angstroms) NO. Atom X Y Z 1 7 0.0000 0.0000 0.0000 2 6 1.3162 0.0000 0.0000 3 14 2.2502 1.6178 0.0000 4 1 3.1039 1.6964 -1.2125 5 1 1.2851 2.7464 -0.0006 6 1 3.1040 1.6964 1.2124 7 6 2.0103 -1.2021 0.0005 8 1 3.0903 -1.2021 0.0001 9 7 1.3256 -2.3881 0.0016 10 6 -0.1237 -2.5501 -0.2359 11 6 -0.2827 -4.0059 -0.7407 12 6 0.7733 -4.7506 0.1182 13 6 1.9109 -3.7152 0.2416 14 1 2.6812 -3.9205 -0.5018 15 6 2.5153 -3.7711 1.6460 16 1 3.3347 -3.0559 1.7182 17 6 1.4412 -3.4234 2.6793 18 6 2.0535 -3.4467 4.0816 19 6 2.5743 -4.8601 4.3832 20 7 3.5015 -5.2545 3.3138 21 6 4.7466 -5.6792 3.6065 22 8 5.5307 -5.9203 2.7132 23 6 5.1667 -5.8484 5.0438 24 6 4.3577 -6.9203 5.7769 25 9 4.8845 -7.1063 7.0595 26 6 5.2730 -4.5220 5.8147 27 6 6.5388 -5.0994 6.4739 28 6 6.6868 -5.9898 5.2288 29 6 3.0433 -5.1829 1.9196 30 1 -0.4850 0.8400 0.0004 31 1 -0.4633 -1.8459 -0.9954 32 1 -0.6794 -2.4070 0.6908 33 1 -0.0455 -4.0795 -1.8020 34 1 -1.2857 -4.3823 -0.5398 35 1 1.1224 -5.6481 -0.3924 36 1 0.3679 -4.9970 1.0996 37 1 1.0463 -2.4288 2.4719 38 1 0.6337 -4.1534 2.6233 39 1 2.8771 -2.7345 4.1309 40 1 1.2938 -3.1756 4.8149 41 1 1.7396 -5.5602 4.4197 42 1 3.0975 -4.8620 5.3394 43 1 3.3182 -6.6017 5.8538 44 1 4.4105 -7.8576 5.2230 45 1 5.4675 -3.6603 5.1763 46 1 4.4529 -4.3560 6.5133 47 1 6.3376 -5.6575 7.3883 48 1 7.3435 -4.3734 6.5896 49 1 7.0063 -7.0071 5.4549 50 1 7.2685 -5.5301 4.4299 51 1 3.8760 -5.3978 1.2498 52 1 2.2460 -5.9087 1.7593 RHF calculation, no. of doubly occupied orbitals= 65 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 ZINC000963366620.mol2 52 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 21:11:25 Heat of formation + Delta-G solvation = -40.748051 kcal Electronic energy + Delta-G solvation = -31947.396408 eV Core-core repulsion = 27862.351449 eV Total energy + Delta-G solvation = -4085.044959 eV No. of doubly occupied orbitals = 65 Molecular weight (most abundant/longest-lived isotopes) = 338.211 amu Computer time = 2.16 seconds Orbital eigenvalues (eV) -48.08740 -40.85502 -38.86552 -37.47816 -36.40812 -32.96273 -32.30596 -31.30771 -29.62493 -29.22357 -26.77391 -25.90215 -25.72546 -24.53359 -23.86799 -22.58968 -21.39179 -20.44859 -19.81381 -18.87080 -18.34990 -17.54497 -16.66094 -16.47577 -16.26190 -15.77551 -15.43220 -15.14328 -14.83260 -14.48482 -14.23479 -14.15266 -13.88778 -13.73753 -13.33811 -13.15160 -12.84323 -12.70581 -12.52228 -12.37308 -12.14070 -12.00549 -11.81678 -11.59791 -11.35150 -11.27503 -11.13402 -10.90604 -10.84025 -10.74492 -10.58116 -10.47601 -10.29965 -10.23557 -10.12139 -9.93040 -9.80226 -9.64109 -9.52823 -9.44072 -8.58608 -8.47752 -6.78555 -5.72839 -3.07393 2.52532 2.97443 3.39146 3.44366 3.44931 3.93963 4.12727 4.19825 4.37810 4.48767 4.55181 4.64969 4.85123 4.90853 5.11715 5.14176 5.16416 5.23731 5.30637 5.40960 5.44482 5.48218 5.54776 5.59203 5.69487 5.72140 5.72521 5.76669 5.77994 5.81552 5.90398 5.92183 5.96376 6.07179 6.17036 6.20716 6.27186 6.35572 6.45620 6.54721 6.61167 6.67977 6.77636 6.99234 7.02545 7.15530 7.44142 7.56973 7.61724 7.81981 8.15755 8.29595 9.21249 9.82590 10.51116 11.38129 Molecular weight = 338.21amu Principal moments of inertia in cm(-1) A = 0.015178 B = 0.003390 C = 0.003076 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1844.311250 B = 8258.642096 C = 9101.957700 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 N -0.919 5.919 2 C -0.004 4.004 3 Si 0.906 3.094 4 H -0.286 1.286 5 H -0.291 1.291 6 H -0.286 1.286 7 C -0.222 4.222 8 H 0.072 0.928 9 N -0.591 5.591 10 C 0.172 3.828 11 C -0.150 4.150 12 C -0.129 4.129 13 C 0.167 3.833 14 H 0.032 0.968 15 C -0.103 4.103 16 H 0.069 0.931 17 C -0.105 4.105 18 C -0.133 4.133 19 C 0.098 3.902 20 N -0.602 5.602 21 C 0.531 3.469 22 O -0.537 6.537 23 C -0.145 4.145 24 C 0.088 3.912 25 F -0.206 7.206 26 C -0.121 4.121 27 C -0.145 4.145 28 C -0.106 4.106 29 C 0.114 3.886 30 H 0.252 0.748 31 H 0.075 0.925 32 H 0.022 0.978 33 H 0.056 0.944 34 H 0.055 0.945 35 H 0.055 0.945 36 H 0.066 0.934 37 H 0.089 0.911 38 H 0.054 0.946 39 H 0.065 0.935 40 H 0.069 0.931 41 H 0.067 0.933 42 H 0.084 0.916 43 H 0.087 0.913 44 H 0.082 0.918 45 H 0.090 0.910 46 H 0.078 0.922 47 H 0.095 0.905 48 H 0.070 0.930 49 H 0.073 0.927 50 H 0.094 0.906 51 H 0.086 0.914 52 H 0.066 0.934 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 4.632 -13.547 12.661 19.112 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 N -0.566 5.566 2 C -0.201 4.201 3 Si 0.737 3.263 4 H -0.212 1.212 5 H -0.217 1.217 6 H -0.213 1.213 7 C -0.350 4.350 8 H 0.090 0.910 9 N -0.315 5.315 10 C 0.047 3.953 11 C -0.188 4.188 12 C -0.167 4.167 13 C 0.059 3.941 14 H 0.050 0.950 15 C -0.125 4.125 16 H 0.087 0.913 17 C -0.142 4.142 18 C -0.171 4.171 19 C -0.025 4.025 20 N -0.334 5.334 21 C 0.318 3.682 22 O -0.414 6.414 23 C -0.148 4.148 24 C 0.033 3.967 25 F -0.187 7.187 26 C -0.158 4.158 27 C -0.183 4.183 28 C -0.144 4.144 29 C -0.008 4.008 30 H 0.062 0.938 31 H 0.093 0.907 32 H 0.040 0.960 33 H 0.075 0.925 34 H 0.074 0.926 35 H 0.074 0.926 36 H 0.084 0.916 37 H 0.108 0.892 38 H 0.072 0.928 39 H 0.083 0.917 40 H 0.088 0.912 41 H 0.085 0.915 42 H 0.102 0.898 43 H 0.105 0.895 44 H 0.100 0.900 45 H 0.109 0.891 46 H 0.097 0.903 47 H 0.114 0.886 48 H 0.089 0.911 49 H 0.092 0.908 50 H 0.113 0.887 51 H 0.105 0.895 52 H 0.085 0.915 Dipole moment (debyes) X Y Z Total from point charges 4.987 -13.424 12.179 18.799 hybrid contribution 0.370 1.000 0.083 1.069 sum 5.357 -12.424 12.261 18.259 Atomic orbital electron populations 1.69916 1.04833 1.25060 1.56821 1.24790 0.95605 0.97494 1.02194 0.86288 0.78558 0.83534 0.77930 1.21221 1.21654 1.21271 1.18904 0.90245 0.82340 1.43532 0.90979 1.44544 1.04378 1.00461 1.82073 1.21520 0.84727 0.90369 0.98657 1.23007 0.97172 0.99736 0.98911 1.22679 0.97116 0.97183 0.99722 1.20864 0.93743 0.87173 0.92313 0.94985 1.21947 0.98470 0.94229 0.97848 0.91266 1.21472 0.97084 1.03889 0.91746 1.22006 1.00837 0.95216 0.99077 1.22137 0.92975 0.97165 0.90236 1.48162 1.12673 1.64350 1.08255 1.20006 0.81444 0.76931 0.89808 1.90688 1.51197 1.51234 1.48291 1.22765 0.99471 0.99034 0.93573 1.21720 0.96959 0.98806 0.79207 1.92734 1.88558 1.96415 1.40962 1.23014 0.99240 0.94975 0.98578 1.23070 0.97620 0.99310 0.98264 1.22759 0.92072 1.01164 0.98401 1.21854 0.99613 0.98354 0.81017 0.93765 0.90704 0.96027 0.92505 0.92624 0.92620 0.91587 0.89220 0.92780 0.91668 0.91240 0.91475 0.89803 0.89529 0.89986 0.89131 0.90308 0.88615 0.91123 0.90813 0.88730 0.89546 0.91549 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 15. 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 N -0.92 -25.96 10.48 55.49 0.58 -25.38 16 2 C 0.00 -0.12 5.48 -17.43 -0.10 -0.22 16 3 Si 0.91 21.78 29.55 -169.99 -5.02 16.76 16 4 H -0.29 -6.85 7.11 56.52 0.40 -6.45 16 5 H -0.29 -7.05 7.11 56.52 0.40 -6.65 16 6 H -0.29 -6.82 7.11 56.52 0.40 -6.42 16 7 C -0.22 -5.90 9.89 -15.06 -0.15 -6.05 16 8 H 0.07 1.91 7.83 -52.49 -0.41 1.50 16 9 N -0.59 -14.07 2.23 -162.32 -0.36 -14.43 16 10 C 0.17 3.96 5.49 -2.35 -0.01 3.95 16 11 C -0.15 -2.72 7.09 -24.58 -0.17 -2.89 16 12 C -0.13 -2.13 5.08 -24.90 -0.13 -2.25 16 13 C 0.17 3.26 2.96 -66.96 -0.20 3.06 16 14 H 0.03 0.66 8.14 -51.93 -0.42 0.24 16 15 C -0.10 -1.80 2.10 -90.50 -0.19 -1.99 16 16 H 0.07 1.40 8.08 -51.93 -0.42 0.98 16 17 C -0.10 -1.72 4.75 -26.69 -0.13 -1.85 16 18 C -0.13 -1.74 6.10 -26.39 -0.16 -1.90 16 19 C 0.10 1.05 5.00 -3.48 -0.02 1.03 16 20 N -0.60 -7.95 2.97 -172.50 -0.51 -8.46 16 21 C 0.53 7.39 6.71 -10.99 -0.07 7.31 16 22 O -0.54 -9.48 15.51 5.55 0.09 -9.39 16 23 C -0.14 -1.53 0.70 -154.85 -0.11 -1.64 16 24 C 0.09 0.76 6.66 37.16 0.25 1.01 16 25 F -0.21 -1.96 14.58 2.25 0.03 -1.93 16 26 C -0.12 -1.16 5.84 -25.83 -0.15 -1.31 16 27 C -0.15 -1.31 7.56 -25.83 -0.20 -1.51 16 28 C -0.11 -1.12 6.70 -25.92 -0.17 -1.29 16 29 C 0.11 1.69 5.55 -3.71 -0.02 1.67 16 30 H 0.25 7.01 8.31 -40.82 -0.34 6.67 16 31 H 0.07 1.97 6.71 -51.93 -0.35 1.62 16 32 H 0.02 0.53 8.13 -51.93 -0.42 0.11 16 33 H 0.06 1.03 8.14 -51.93 -0.42 0.61 16 34 H 0.06 0.90 8.14 -51.93 -0.42 0.47 16 35 H 0.06 0.81 8.14 -51.93 -0.42 0.39 16 36 H 0.07 1.01 5.53 -51.93 -0.29 0.73 16 37 H 0.09 1.89 7.49 -51.93 -0.39 1.50 16 38 H 0.05 0.84 6.20 -51.93 -0.32 0.52 16 39 H 0.06 0.93 8.14 -51.93 -0.42 0.51 16 40 H 0.07 0.80 8.14 -51.92 -0.42 0.38 16 41 H 0.07 0.63 8.14 -51.93 -0.42 0.21 16 42 H 0.08 0.74 3.27 -51.93 -0.17 0.57 16 43 H 0.09 0.62 5.85 -51.93 -0.30 0.32 16 44 H 0.08 0.67 8.14 -51.92 -0.42 0.24 16 45 H 0.09 0.98 8.09 -51.93 -0.42 0.56 16 46 H 0.08 0.66 7.10 -51.93 -0.37 0.29 16 47 H 0.10 0.84 6.39 -51.93 -0.33 0.50 16 48 H 0.07 0.59 8.14 -51.93 -0.42 0.17 16 49 H 0.07 0.73 8.10 -51.93 -0.42 0.31 16 50 H 0.09 1.14 7.66 -51.93 -0.40 0.74 16 51 H 0.09 1.43 7.00 -51.93 -0.36 1.06 16 52 H 0.07 0.90 6.81 -51.93 -0.35 0.54 16 LS Contribution 382.13 15.07 5.76 5.76 Total: -1.00 -29.88 382.13 -9.83 -39.71 By element: Atomic # 1 Polarization: 10.89 SS G_CDS: -8.67 Total: 2.22 kcal Atomic # 6 Polarization: -3.14 SS G_CDS: -1.73 Total: -4.87 kcal Atomic # 7 Polarization: -47.98 SS G_CDS: -0.29 Total: -48.27 kcal Atomic # 8 Polarization: -9.48 SS G_CDS: 0.09 Total: -9.39 kcal Atomic # 9 Polarization: -1.96 SS G_CDS: 0.03 Total: -1.93 kcal Atomic # 14 Polarization: 21.78 SS G_CDS: -5.02 Total: 16.76 kcal Total LS contribution 5.76 Total: 5.76 kcal Total: -29.88 -9.83 -39.71 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. ZINC000963366620.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 -1.037 kcal (2) G-P(sol) polarization free energy of solvation -29.878 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -30.915 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.833 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -39.711 kcal (6) G-S(sol) free energy of system = (1) + (5) -40.748 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 2.17 seconds