Wall clock time and date at job start Wed Apr 1 2020 01:52:40 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 1.50702 * 1 3 3 C 1.38267 * 119.99477 * 2 1 4 4 C 1.38214 * 119.99898 * 180.02562 * 3 2 1 5 5 C 1.38260 * 119.99781 * 359.97365 * 4 3 2 6 6 C 1.38212 * 120.00123 * 359.81479 * 5 4 3 7 7 C 1.38207 * 120.00715 * 180.02562 * 2 1 3 8 8 C 1.50707 * 119.99483 * 359.97438 * 7 2 1 9 9 C 1.50696 * 109.47022 * 85.00096 * 8 7 2 10 10 O 1.21292 * 120.00028 * 359.97438 * 9 8 7 11 11 N 1.34776 * 120.00213 * 179.97438 * 9 8 7 12 12 C 1.48187 * 127.79950 * 359.96850 * 11 9 8 13 13 C 1.54503 * 104.63011 * 140.70164 * 12 11 9 14 14 C 1.53834 * 104.78758 * 23.81377 * 13 12 11 15 15 C 1.48253 * 127.80256 * 179.97438 * 11 9 8 16 16 C 1.52486 * 110.21589 * 118.75935 * 14 13 12 17 17 C 1.53132 * 109.60070 * 61.99634 * 16 14 13 18 18 C 1.53187 * 109.29024 * 60.48827 * 17 16 14 19 19 N 1.46926 * 108.90490 * 304.94008 * 18 17 16 20 20 C 1.36938 * 120.68361 * 234.04809 * 19 18 17 21 21 H 1.07994 * 120.00347 * 27.35070 * 20 19 18 22 22 C 1.38815 * 119.99791 * 207.35977 * 20 19 18 23 23 N 1.31620 * 120.00071 * 17.22961 * 22 20 19 24 24 Si 1.86802 * 119.99808 * 197.22698 * 22 20 19 25 25 H 1.48503 * 109.46690 * 90.00029 * 24 22 20 26 26 H 1.48500 * 109.46988 * 209.99680 * 24 22 20 27 27 H 1.48493 * 109.47309 * 330.00417 * 24 22 20 28 28 C 1.47038 * 118.63457 * 54.01985 * 19 18 17 29 29 H 1.09001 * 109.47112 * 269.97818 * 1 2 3 30 30 H 1.08994 * 109.47450 * 29.98299 * 1 2 3 31 31 H 1.09001 * 109.46434 * 149.98170 * 1 2 3 32 32 H 1.08000 * 119.99830 * 359.97429 * 3 2 1 33 33 H 1.07995 * 119.99833 * 179.97438 * 4 3 2 34 34 H 1.07999 * 119.99764 * 179.97438 * 5 4 3 35 35 H 1.08004 * 120.00050 * 180.23365 * 6 5 4 36 36 H 1.08995 * 109.47135 * 324.99990 * 8 7 2 37 37 H 1.09004 * 109.46711 * 204.99890 * 8 7 2 38 38 H 1.09006 * 110.40061 * 21.91821 * 12 11 9 39 39 H 1.08997 * 110.41117 * 259.49614 * 12 11 9 40 40 H 1.08998 * 110.38269 * 264.98501 * 13 12 11 41 41 H 1.09009 * 110.46655 * 142.68685 * 13 12 11 42 42 H 1.09003 * 110.43020 * 100.37935 * 15 11 9 43 43 H 1.09003 * 110.42530 * 337.90191 * 15 11 9 44 44 H 1.08994 * 109.45091 * 301.95636 * 16 14 13 45 45 H 1.09002 * 109.42629 * 182.02066 * 16 14 13 46 46 H 1.09001 * 109.50099 * 300.54637 * 17 16 14 47 47 H 1.08995 * 109.53577 * 180.45685 * 17 16 14 48 48 H 1.09001 * 109.56452 * 185.10741 * 18 17 16 49 49 H 1.09001 * 109.56083 * 64.76888 * 18 17 16 50 50 H 0.97001 * 119.99761 * 179.97438 * 23 22 20 51 51 H 1.08994 * 109.58718 * 67.00703 * 28 19 18 52 52 H 1.09005 * 109.58488 * 187.43158 * 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 1.5070 0.0000 0.0000 3 6 2.1982 1.1975 0.0000 4 6 3.5804 1.1976 -0.0005 5 6 4.2717 0.0002 -0.0005 6 6 3.5807 -1.1967 0.0039 7 6 2.1982 -1.1968 -0.0005 8 6 1.4447 -2.5020 -0.0005 9 6 1.0858 -2.8748 -1.4159 10 8 1.4096 -2.1516 -2.3342 11 7 0.4051 -4.0118 -1.6613 12 6 -0.0725 -5.0143 -0.6800 13 6 -1.4656 -5.4353 -1.1989 14 6 -1.4336 -5.1255 -2.7054 15 6 -0.0349 -4.5422 -2.9740 16 6 -1.6345 -6.4046 -3.5108 17 6 -3.0094 -7.0001 -3.1946 18 6 -4.0975 -5.9916 -3.5761 19 7 -3.8291 -4.7199 -2.8910 20 6 -4.7904 -4.1267 -2.1168 21 1 -5.5483 -4.7305 -1.6401 22 6 -4.7907 -2.7493 -1.9449 23 7 -4.1063 -1.9832 -2.7678 24 14 -5.7624 -1.9829 -0.5456 25 1 -4.9004 -1.8837 0.6595 26 1 -6.2158 -0.6257 -0.9430 27 1 -6.9434 -2.8299 -0.2410 28 6 -2.5069 -4.0974 -3.0533 29 1 -0.3633 -0.0004 1.0277 30 1 -0.3634 0.8901 -0.5135 31 1 -0.3632 -0.8899 -0.5141 32 1 1.6581 2.1327 -0.0004 33 1 4.1203 2.1329 -0.0010 34 1 5.3517 0.0003 -0.0014 35 1 4.1208 -2.1320 0.0077 36 1 0.5343 -2.3959 0.5893 37 1 2.0699 -3.2824 0.4334 38 1 -0.1552 -4.5669 0.3106 39 1 0.5992 -5.8723 -0.6555 40 1 -2.2454 -4.8529 -0.7082 41 1 -1.6279 -6.5005 -1.0338 42 1 0.6440 -5.3237 -3.3155 43 1 -0.0922 -3.7392 -3.7088 44 1 -0.8586 -7.1239 -3.2490 45 1 -1.5738 -6.1763 -4.5749 46 1 -3.0745 -7.2199 -2.1290 47 1 -3.1486 -7.9186 -3.7647 48 1 -5.0719 -6.3727 -3.2700 49 1 -4.0876 -5.8345 -4.6546 50 1 -4.1069 -1.0206 -2.6478 51 1 -2.3804 -3.7723 -4.0859 52 1 -2.4221 -3.2403 -2.3852 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) 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 ZINC001040524096.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 01:52:40 Heat of formation + Delta-G solvation = 6.934337 kcal Electronic energy + Delta-G solvation = -31391.708740 eV Core-core repulsion = 27549.044618 eV Total energy + Delta-G solvation = -3842.664122 eV No. of doubly occupied orbitals = 65 Molecular weight (most abundant/longest-lived isotopes) = 342.205 amu Computer time = 1.49 seconds Orbital eigenvalues (eV) -40.27054 -39.38282 -37.99156 -35.69272 -33.30620 -33.07168 -32.15356 -31.14048 -29.91663 -29.21268 -28.14229 -26.65702 -25.35836 -25.04851 -22.94963 -22.21417 -21.99443 -21.02825 -20.43450 -19.00650 -17.92642 -16.92019 -16.58138 -16.32311 -15.95959 -15.25758 -15.17798 -14.82780 -14.69929 -14.12346 -13.96694 -13.59153 -13.52105 -13.33819 -13.13512 -12.96963 -12.90118 -12.61115 -12.41931 -12.33582 -12.10626 -11.98097 -11.88707 -11.83582 -11.58333 -11.05048 -11.00904 -10.92215 -10.87878 -10.73457 -10.65148 -10.35591 -10.14619 -10.10474 -9.80736 -9.69145 -9.47748 -9.39762 -8.73103 -8.48438 -8.48123 -8.36046 -6.67186 -5.78307 -3.20458 1.38497 1.46631 2.92621 3.23414 3.34775 3.42632 3.44132 3.84860 4.47742 4.67673 4.78174 4.83586 5.00242 5.02737 5.05379 5.16428 5.22838 5.31927 5.41386 5.44215 5.45416 5.49248 5.57470 5.62695 5.65647 5.67750 5.77686 5.78699 5.83067 5.95779 5.98271 6.06129 6.11370 6.14722 6.26092 6.29379 6.33111 6.34887 6.46939 6.50025 6.51955 6.53986 6.69816 6.73593 6.81087 6.86781 6.93217 7.00824 7.07313 7.36027 7.67165 7.79868 7.87590 8.44342 8.47148 9.20896 9.84838 10.42148 11.29636 Molecular weight = 342.20amu Principal moments of inertia in cm(-1) A = 0.011430 B = 0.003902 C = 0.003139 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2449.117084 B = 7173.199153 C = 8917.864885 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.121 4.121 2 C -0.062 4.062 3 C -0.121 4.121 4 C -0.119 4.119 5 C -0.130 4.130 6 C -0.105 4.105 7 C -0.064 4.064 8 C -0.100 4.100 9 C 0.536 3.464 10 O -0.533 6.533 11 N -0.619 5.619 12 C 0.098 3.902 13 C -0.114 4.114 14 C -0.095 4.095 15 C 0.118 3.882 16 C -0.094 4.094 17 C -0.134 4.134 18 C 0.144 3.856 19 N -0.589 5.589 20 C -0.253 4.253 21 H 0.065 0.935 22 C 0.005 3.995 23 N -0.898 5.898 24 Si 0.896 3.104 25 H -0.288 1.288 26 H -0.291 1.291 27 H -0.279 1.279 28 C 0.191 3.809 29 H 0.070 0.930 30 H 0.069 0.931 31 H 0.071 0.929 32 H 0.120 0.880 33 H 0.118 0.882 34 H 0.118 0.882 35 H 0.118 0.882 36 H 0.103 0.897 37 H 0.097 0.903 38 H 0.072 0.928 39 H 0.065 0.935 40 H 0.086 0.914 41 H 0.070 0.930 42 H 0.061 0.939 43 H 0.081 0.919 44 H 0.047 0.953 45 H 0.055 0.945 46 H 0.060 0.940 47 H 0.049 0.951 48 H 0.051 0.949 49 H 0.015 0.985 50 H 0.254 0.746 51 H 0.015 0.985 52 H 0.089 0.911 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 13.545 -3.492 7.045 15.662 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 -0.177 4.177 2 C -0.062 4.062 3 C -0.139 4.139 4 C -0.137 4.137 5 C -0.148 4.148 6 C -0.123 4.123 7 C -0.064 4.064 8 C -0.140 4.140 9 C 0.324 3.676 10 O -0.410 6.410 11 N -0.353 5.353 12 C -0.025 4.025 13 C -0.152 4.152 14 C -0.097 4.097 15 C -0.005 4.005 16 C -0.132 4.132 17 C -0.173 4.173 18 C 0.017 3.983 19 N -0.311 5.311 20 C -0.382 4.382 21 H 0.083 0.917 22 C -0.194 4.194 23 N -0.542 5.542 24 Si 0.726 3.274 25 H -0.215 1.215 26 H -0.218 1.218 27 H -0.205 1.205 28 C 0.065 3.935 29 H 0.088 0.912 30 H 0.088 0.912 31 H 0.090 0.910 32 H 0.138 0.862 33 H 0.136 0.864 34 H 0.136 0.864 35 H 0.136 0.864 36 H 0.121 0.879 37 H 0.116 0.884 38 H 0.091 0.909 39 H 0.083 0.917 40 H 0.105 0.895 41 H 0.088 0.912 42 H 0.079 0.921 43 H 0.099 0.901 44 H 0.066 0.934 45 H 0.074 0.926 46 H 0.078 0.922 47 H 0.068 0.932 48 H 0.070 0.930 49 H 0.033 0.967 50 H 0.064 0.936 51 H 0.033 0.967 52 H 0.107 0.893 Dipole moment (debyes) X Y Z Total from point charges 13.753 -2.802 6.565 15.495 hybrid contribution -0.485 0.399 0.641 0.898 sum 13.267 -2.403 7.206 15.288 Atomic orbital electron populations 1.20867 0.90906 1.03890 1.02049 1.19785 0.96163 0.92527 0.97682 1.21002 0.94244 0.97402 1.01299 1.21074 0.94282 0.97874 1.00518 1.21007 0.99508 0.92514 1.01736 1.20927 0.93334 0.98078 0.99976 1.19159 0.93366 0.93236 1.00654 1.20664 1.01919 0.96058 0.95328 1.19977 0.77441 0.79304 0.90834 1.90727 1.53864 1.50002 1.46390 1.48975 1.55276 1.21430 1.09593 1.22518 0.96217 0.91010 0.92728 1.22502 0.95430 1.01399 0.95854 1.21849 0.95330 0.97668 0.94877 1.22348 0.94452 0.97991 0.85726 1.21343 0.96930 0.95576 0.99379 1.22048 0.96184 0.98081 1.01011 1.20903 0.95478 0.87236 0.94672 1.44038 1.10112 1.21814 1.55184 1.19148 1.08084 0.89336 1.21673 0.91733 1.25005 0.99466 0.96401 0.98515 1.70030 1.44840 1.03820 1.35491 0.86387 0.79816 0.78704 0.82489 1.21486 1.21784 1.20465 1.20720 0.81239 0.92668 0.98900 0.91159 0.91239 0.91022 0.86165 0.86370 0.86368 0.86421 0.87868 0.88448 0.90916 0.91703 0.89499 0.91154 0.92071 0.90058 0.93425 0.92584 0.92153 0.93241 0.93008 0.96661 0.93611 0.96666 0.89258 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 18. 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 -0.12 -1.78 9.22 36.01 0.33 -1.45 16 2 C -0.06 -0.90 5.88 -104.62 -0.62 -1.51 16 3 C -0.12 -1.59 9.70 -39.58 -0.38 -1.98 16 4 C -0.12 -1.41 10.05 -39.58 -0.40 -1.81 16 5 C -0.13 -1.52 10.05 -39.58 -0.40 -1.92 16 6 C -0.11 -1.34 9.68 -39.58 -0.38 -1.72 16 7 C -0.06 -0.91 4.37 -104.62 -0.46 -1.36 16 8 C -0.10 -1.33 4.13 -29.03 -0.12 -1.45 16 9 C 0.54 9.13 7.13 -10.99 -0.08 9.05 16 10 O -0.53 -11.21 16.31 5.55 0.09 -11.12 16 11 N -0.62 -9.92 3.32 -169.40 -0.56 -10.48 16 12 C 0.10 1.29 6.92 -2.32 -0.02 1.28 16 13 C -0.11 -1.79 5.58 -25.51 -0.14 -1.94 16 14 C -0.09 -1.65 0.68 -154.05 -0.11 -1.76 16 15 C 0.12 1.98 6.13 -2.60 -0.02 1.96 16 16 C -0.09 -1.47 4.44 -26.93 -0.12 -1.59 16 17 C -0.13 -2.16 5.87 -26.57 -0.16 -2.31 16 18 C 0.14 2.89 6.50 -3.71 -0.02 2.87 16 19 N -0.59 -14.06 2.78 -172.56 -0.48 -14.54 16 20 C -0.25 -6.67 9.59 -15.06 -0.14 -6.81 16 21 H 0.06 1.69 7.89 -52.49 -0.41 1.27 16 22 C 0.01 0.14 4.92 -17.43 -0.09 0.05 16 23 N -0.90 -25.81 11.18 55.49 0.62 -25.19 16 24 Si 0.90 21.25 29.59 -169.99 -5.03 16.22 16 25 H -0.29 -6.74 7.11 56.52 0.40 -6.34 16 26 H -0.29 -7.07 7.11 56.52 0.40 -6.67 16 27 H -0.28 -6.50 7.11 56.52 0.40 -6.09 16 28 C 0.19 4.38 3.63 -3.93 -0.01 4.36 16 29 H 0.07 0.90 8.14 -51.93 -0.42 0.48 16 30 H 0.07 1.00 8.08 -51.93 -0.42 0.58 16 31 H 0.07 1.22 6.16 -51.93 -0.32 0.90 16 32 H 0.12 1.36 8.06 -52.49 -0.42 0.93 16 33 H 0.12 1.09 8.06 -52.49 -0.42 0.67 16 34 H 0.12 1.08 8.06 -52.49 -0.42 0.66 16 35 H 0.12 1.26 8.06 -52.48 -0.42 0.84 16 36 H 0.10 1.29 6.80 -51.93 -0.35 0.94 16 37 H 0.10 1.01 8.05 -51.93 -0.42 0.59 16 38 H 0.07 0.84 7.31 -51.93 -0.38 0.46 16 39 H 0.06 0.71 8.14 -51.93 -0.42 0.29 16 40 H 0.09 1.66 7.65 -51.93 -0.40 1.26 16 41 H 0.07 1.00 6.51 -51.92 -0.34 0.66 16 42 H 0.06 0.90 7.83 -51.93 -0.41 0.49 16 43 H 0.08 1.58 7.55 -51.93 -0.39 1.18 16 44 H 0.05 0.63 8.13 -51.93 -0.42 0.21 16 45 H 0.06 0.89 8.14 -51.93 -0.42 0.47 16 46 H 0.06 0.97 6.61 -51.93 -0.34 0.63 16 47 H 0.05 0.69 8.14 -51.93 -0.42 0.26 16 48 H 0.05 1.03 7.93 -51.93 -0.41 0.62 16 49 H 0.02 0.32 8.14 -51.93 -0.42 -0.10 16 50 H 0.25 7.16 8.31 -40.82 -0.34 6.82 16 51 H 0.02 0.39 8.09 -51.93 -0.42 -0.03 16 52 H 0.09 2.36 6.05 -51.93 -0.31 2.05 16 LS Contribution 400.85 15.07 6.04 6.04 Total: -1.00 -31.74 400.85 -11.34 -43.08 By element: Atomic # 1 Polarization: 12.72 SS G_CDS: -8.69 Total: 4.03 kcal Atomic # 6 Polarization: -4.71 SS G_CDS: -3.33 Total: -8.04 kcal Atomic # 7 Polarization: -49.79 SS G_CDS: -0.42 Total: -50.21 kcal Atomic # 8 Polarization: -11.21 SS G_CDS: 0.09 Total: -11.12 kcal Atomic # 14 Polarization: 21.25 SS G_CDS: -5.03 Total: 16.22 kcal Total LS contribution 6.04 Total: 6.04 kcal Total: -31.74 -11.34 -43.08 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. ZINC001040524096.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 50.014 kcal (2) G-P(sol) polarization free energy of solvation -31.744 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 18.270 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -11.336 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -43.080 kcal (6) G-S(sol) free energy of system = (1) + (5) 6.934 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.50 seconds