Wall clock time and date at job start Sat Apr 11 2020 06:11:37 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 1.53008 * 1 3 3 O 1.42897 * 109.47326 * 2 1 4 4 C 1.42892 * 113.99944 * 180.02562 * 3 2 1 5 5 H 1.08997 * 109.57748 * 29.84568 * 4 3 2 6 6 C 1.53104 * 109.45714 * 269.63144 * 4 3 2 7 7 O 1.42901 * 109.48580 * 297.61973 * 6 4 3 8 8 C 1.42899 * 114.09804 * 298.88096 * 7 6 4 9 9 C 1.53095 * 109.41464 * 61.16112 * 8 7 6 10 10 C 1.53177 * 109.16033 * 302.39422 * 9 8 7 11 11 H 1.08999 * 109.54127 * 297.02117 * 10 9 8 12 12 C 1.53008 * 109.54158 * 176.84732 * 10 9 8 13 13 C 1.50697 * 109.46984 * 65.17326 * 12 10 9 14 14 O 1.21284 * 120.00485 * 0.02562 * 13 12 10 15 15 N 1.34780 * 119.99814 * 179.97438 * 13 12 10 16 16 C 1.46506 * 120.00008 * 180.02562 * 15 13 12 17 17 C 1.52995 * 109.47026 * 179.97438 * 16 15 13 18 18 N 1.46502 * 109.47092 * 179.97438 * 17 16 15 19 19 C 1.36938 * 119.99815 * 89.99992 * 18 17 16 20 20 H 1.07993 * 120.00222 * 215.89849 * 19 18 17 21 21 C 1.38815 * 119.99781 * 35.89610 * 19 18 17 22 22 N 1.31617 * 120.00174 * 21.70097 * 21 19 18 23 23 Si 1.86796 * 119.99982 * 201.69476 * 21 19 18 24 24 H 1.48500 * 109.47397 * 89.99909 * 23 21 19 25 25 H 1.48497 * 109.47160 * 210.00509 * 23 21 19 26 26 H 1.48502 * 109.47167 * 330.00316 * 23 21 19 27 27 C 1.46497 * 119.99949 * 270.27887 * 18 17 16 28 28 C 1.53005 * 117.49684 * 194.22933 * 27 18 17 29 29 C 1.53004 * 117.49680 * 125.57064 * 27 18 17 30 30 H 1.09001 * 109.47070 * 180.02562 * 1 2 3 31 31 H 1.08998 * 109.46646 * 299.99977 * 1 2 3 32 32 H 1.09003 * 109.46827 * 59.99936 * 1 2 3 33 33 H 1.08998 * 109.46668 * 239.99467 * 2 1 3 34 34 H 1.09003 * 109.46827 * 120.00063 * 2 1 3 35 35 H 1.08996 * 109.40927 * 177.63350 * 6 4 3 36 36 H 1.09010 * 109.48395 * 57.64904 * 6 4 3 37 37 H 1.08995 * 109.48072 * 301.17816 * 8 7 6 38 38 H 1.08997 * 109.48392 * 181.14136 * 8 7 6 39 39 H 1.08995 * 109.52555 * 182.48571 * 9 8 7 40 40 H 1.09000 * 109.52364 * 62.29626 * 9 8 7 41 41 H 1.08995 * 109.46940 * 305.17446 * 12 10 9 42 42 H 1.08995 * 109.46931 * 185.17138 * 12 10 9 43 43 H 0.96998 * 120.00051 * 0.02562 * 15 13 12 44 44 H 1.08998 * 109.47301 * 59.99528 * 16 15 13 45 45 H 1.09001 * 109.46742 * 300.00003 * 16 15 13 46 46 H 1.09005 * 109.46817 * 59.99979 * 17 16 15 47 47 H 1.08996 * 109.47539 * 300.00109 * 17 16 15 48 48 H 0.96994 * 120.00459 * 174.74520 * 22 21 19 49 49 H 1.09000 * 115.55647 * 339.89575 * 27 18 17 50 50 H 1.08998 * 117.50041 * 359.97438 * 28 27 18 51 51 H 1.08992 * 117.50237 * 145.02343 * 28 27 18 52 52 H 1.09006 * 117.49425 * 214.97652 * 29 27 18 53 53 H 1.08991 * 117.50063 * 359.97243 * 29 27 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 1.5301 0.0000 0.0000 3 8 2.0065 1.3472 0.0000 4 6 3.4309 1.4600 -0.0006 5 1 3.8651 0.6009 -0.5120 6 6 3.9392 1.5093 1.4428 7 8 3.4162 2.6694 2.0930 8 6 3.8087 3.9035 1.4890 9 6 3.2934 3.9516 0.0482 10 6 3.8422 2.7469 -0.7224 11 1 4.9296 2.8078 -0.7680 12 6 3.2699 2.7431 -2.1414 13 6 3.7722 3.9514 -2.8889 14 8 4.5153 4.7379 -2.3409 15 7 3.3966 4.1575 -4.1668 16 6 3.8854 5.3318 -4.8937 17 6 3.3140 5.3274 -6.3129 18 7 3.8024 6.5020 -7.0396 19 6 4.9679 6.4290 -7.7547 20 1 5.6287 7.2820 -7.7988 21 6 5.3001 5.2584 -8.4228 22 7 4.3612 4.3916 -8.7383 23 14 7.0796 4.9134 -8.8742 24 1 7.7369 4.1743 -7.7666 25 1 7.1264 4.0946 -10.1121 26 1 7.7901 6.1972 -9.1026 27 6 3.0469 7.7564 -6.9963 28 6 3.4079 8.8342 -8.0206 29 6 3.7932 9.0154 -6.5502 30 1 -0.3633 -1.0277 0.0005 31 1 -0.3632 0.5138 0.8900 32 1 -0.3633 0.5139 -0.8900 33 1 1.8933 -0.5139 -0.8899 34 1 1.8934 -0.5139 0.8900 35 1 5.0283 1.5529 1.4420 36 1 3.6115 0.6158 1.9744 37 1 4.8961 3.9785 1.4889 38 1 3.3869 4.7350 2.0537 39 1 3.6292 4.8725 -0.4283 40 1 2.2039 3.9174 0.0496 41 1 2.1813 2.7718 -2.0942 42 1 3.5874 1.8379 -2.6588 43 1 2.8027 3.5283 -4.6052 44 1 4.9740 5.3030 -4.9405 45 1 3.5679 6.2373 -4.3765 46 1 2.2254 5.3560 -6.2663 47 1 3.6318 4.4219 -6.8298 48 1 4.5807 3.6114 -9.2711 49 1 1.9991 7.6646 -6.7105 50 1 4.2077 8.6100 -8.7264 51 1 2.5977 9.4516 -8.4082 52 1 3.2361 9.7520 -5.9712 53 1 4.8460 8.9103 -6.2886 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 ZINC001317555360.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 06:11:37 Heat of formation + Delta-G solvation = -92.343501 kcal Electronic energy + Delta-G solvation = -30695.344838 eV Core-core repulsion = 26568.378265 eV Total energy + Delta-G solvation = -4126.966573 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.99 seconds Orbital eigenvalues (eV) -40.35366 -39.01382 -37.33812 -37.15585 -34.92163 -34.17894 -33.22331 -31.62659 -30.92908 -30.15261 -29.09113 -27.26530 -24.62509 -23.82574 -23.44296 -22.90702 -21.50015 -21.38221 -20.31609 -19.98399 -19.73154 -17.09962 -16.89429 -16.54332 -16.21639 -15.92720 -15.90617 -15.52419 -15.28588 -15.09734 -14.78650 -14.38225 -14.35788 -14.08145 -13.78404 -13.46185 -12.89482 -12.87170 -12.79088 -12.57044 -12.43087 -12.28737 -11.96274 -11.88781 -11.57374 -11.46061 -11.42681 -11.08987 -11.05700 -10.88728 -10.80432 -10.61138 -10.49253 -10.42715 -10.19453 -10.13628 -10.02608 -9.66114 -9.53844 -9.31039 -9.15588 -8.56588 -8.45662 -6.59951 -5.92793 -3.47146 2.99096 3.29427 3.35694 3.37387 3.39387 3.56913 3.82498 4.35923 4.47291 4.54018 4.69210 4.74890 4.81473 4.91695 4.92641 5.08704 5.09943 5.14867 5.20057 5.25748 5.26914 5.29102 5.38837 5.42079 5.45023 5.55909 5.65573 5.71062 5.84834 5.85996 5.87330 5.93611 5.99912 6.10262 6.15321 6.16823 6.31565 6.35020 6.47715 6.51704 6.58921 6.88403 6.92108 6.92599 7.04376 7.15389 7.16583 7.49147 7.74282 7.94886 8.39612 8.61997 9.05293 9.67894 10.22906 11.08541 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.013512 B = 0.002407 C = 0.002324 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2071.796334 B =11631.098347 C =12043.587872 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.151 4.151 2 C 0.055 3.945 3 O -0.365 6.365 4 C 0.059 3.941 5 H 0.069 0.931 6 C 0.043 3.957 7 O -0.375 6.375 8 C 0.061 3.939 9 C -0.150 4.150 10 C -0.066 4.066 11 H 0.089 0.911 12 C -0.133 4.133 13 C 0.507 3.493 14 O -0.548 6.548 15 N -0.721 5.721 16 C 0.100 3.900 17 C 0.137 3.863 18 N -0.546 5.546 19 C -0.261 4.261 20 H 0.065 0.935 21 C 0.015 3.985 22 N -0.889 5.889 23 Si 0.901 3.099 24 H -0.285 1.285 25 H -0.290 1.290 26 H -0.276 1.276 27 C 0.126 3.874 28 C -0.196 4.196 29 C -0.227 4.227 30 H 0.068 0.932 31 H 0.063 0.937 32 H 0.063 0.937 33 H 0.047 0.953 34 H 0.044 0.956 35 H 0.058 0.942 36 H 0.091 0.909 37 H 0.049 0.951 38 H 0.092 0.908 39 H 0.095 0.905 40 H 0.073 0.927 41 H 0.099 0.901 42 H 0.088 0.912 43 H 0.397 0.603 44 H 0.063 0.937 45 H 0.051 0.949 46 H 0.030 0.970 47 H 0.105 0.895 48 H 0.258 0.742 49 H 0.089 0.911 50 H 0.099 0.901 51 H 0.074 0.926 52 H 0.073 0.927 53 H 0.085 0.915 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -5.840 -9.149 16.952 20.129 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 -0.208 4.208 2 C -0.022 4.022 3 O -0.285 6.285 4 C 0.001 3.999 5 H 0.087 0.913 6 C -0.035 4.035 7 O -0.294 6.294 8 C -0.015 4.015 9 C -0.188 4.188 10 C -0.085 4.085 11 H 0.108 0.892 12 C -0.173 4.173 13 C 0.293 3.707 14 O -0.427 6.427 15 N -0.372 5.372 16 C -0.026 4.026 17 C 0.010 3.990 18 N -0.262 5.262 19 C -0.390 4.390 20 H 0.083 0.917 21 C -0.185 4.185 22 N -0.531 5.531 23 Si 0.730 3.270 24 H -0.211 1.211 25 H -0.216 1.216 26 H -0.201 1.201 27 C 0.017 3.983 28 C -0.235 4.235 29 C -0.268 4.268 30 H 0.087 0.913 31 H 0.082 0.918 32 H 0.082 0.918 33 H 0.065 0.935 34 H 0.063 0.937 35 H 0.076 0.924 36 H 0.109 0.891 37 H 0.067 0.933 38 H 0.110 0.890 39 H 0.113 0.887 40 H 0.091 0.909 41 H 0.117 0.883 42 H 0.106 0.894 43 H 0.230 0.770 44 H 0.082 0.918 45 H 0.069 0.931 46 H 0.049 0.951 47 H 0.123 0.877 48 H 0.068 0.932 49 H 0.106 0.894 50 H 0.117 0.883 51 H 0.092 0.908 52 H 0.091 0.909 53 H 0.104 0.896 Dipole moment (debyes) X Y Z Total from point charges -5.526 -8.646 17.411 20.210 hybrid contribution 1.032 -0.723 -0.857 1.524 sum -4.494 -9.369 16.554 19.545 Atomic orbital electron populations 1.21724 0.93730 1.02063 1.03254 1.22511 0.95734 0.84255 0.99698 1.87999 1.19850 1.25694 1.94910 1.22836 0.82493 0.98490 0.96122 0.91293 1.23012 0.97731 0.89573 0.93140 1.87928 1.74127 1.13662 1.53653 1.22615 0.98714 0.86310 0.93874 1.22278 1.01711 0.99564 0.95226 1.21024 1.00761 0.93660 0.93056 0.89244 1.21639 1.03124 0.97177 0.95339 1.20590 0.80902 0.87156 0.82062 1.90637 1.36714 1.47520 1.67781 1.46133 1.50270 1.27947 1.12819 1.22301 1.00023 0.85693 0.94543 1.21127 0.94904 0.94692 0.88270 1.43233 1.24349 1.05909 1.52733 1.18990 0.95279 0.99276 1.25489 0.91707 1.25169 0.97650 0.98676 0.97041 1.69863 1.31219 1.14269 1.37738 0.86316 0.84819 0.78272 0.77559 1.21142 1.21608 1.20143 1.21130 0.93279 0.83371 1.00552 1.23091 1.03635 1.04145 0.92603 1.23382 1.01821 1.04132 0.97434 0.91326 0.91838 0.91762 0.93495 0.93728 0.92406 0.89097 0.93312 0.88958 0.88712 0.90868 0.88283 0.89394 0.76981 0.91845 0.93084 0.95132 0.87719 0.93229 0.89374 0.88304 0.90757 0.90865 0.89631 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 -0.15 -1.08 10.28 37.16 0.38 -0.70 16 2 C 0.05 0.43 6.47 37.16 0.24 0.67 16 3 O -0.37 -3.83 8.72 -42.63 -0.37 -4.20 16 4 C 0.06 0.57 2.44 -26.59 -0.06 0.50 16 5 H 0.07 0.55 7.79 -51.93 -0.40 0.14 16 6 C 0.04 0.41 6.48 37.21 0.24 0.65 16 7 O -0.38 -4.50 10.70 -42.63 -0.46 -4.96 16 8 C 0.06 0.69 6.84 37.21 0.25 0.94 16 9 C -0.15 -1.85 4.97 -26.59 -0.13 -1.98 16 10 C -0.07 -0.76 1.75 -90.43 -0.16 -0.91 16 11 H 0.09 1.09 7.96 -51.93 -0.41 0.67 16 12 C -0.13 -1.54 4.93 -27.88 -0.14 -1.68 16 13 C 0.51 8.00 7.57 -10.99 -0.08 7.92 16 14 O -0.55 -10.50 13.99 5.55 0.08 -10.42 16 15 N -0.72 -11.65 5.56 -60.29 -0.33 -11.98 16 16 C 0.10 1.99 6.00 -4.04 -0.02 1.96 16 17 C 0.14 2.98 5.45 -4.04 -0.02 2.95 16 18 N -0.55 -13.05 2.80 -165.66 -0.46 -13.51 16 19 C -0.26 -6.83 8.11 -15.06 -0.12 -6.95 16 20 H 0.07 1.73 7.11 -52.49 -0.37 1.36 16 21 C 0.02 0.40 4.96 -17.43 -0.09 0.31 16 22 N -0.89 -24.13 11.36 55.49 0.63 -23.50 16 23 Si 0.90 21.09 29.61 -169.99 -5.03 16.05 16 24 H -0.28 -6.73 7.11 56.52 0.40 -6.33 16 25 H -0.29 -6.79 7.11 56.52 0.40 -6.39 16 26 H -0.28 -6.41 7.11 56.52 0.40 -6.01 16 27 C 0.13 2.66 6.61 -67.93 -0.45 2.21 16 28 C -0.20 -3.89 9.80 -26.69 -0.26 -4.15 16 29 C -0.23 -4.37 10.07 -26.69 -0.27 -4.64 16 30 H 0.07 0.37 8.14 -51.93 -0.42 -0.05 16 31 H 0.06 0.49 8.14 -51.93 -0.42 0.07 16 32 H 0.06 0.49 8.14 -51.93 -0.42 0.06 16 33 H 0.05 0.33 8.09 -51.93 -0.42 -0.09 16 34 H 0.04 0.31 7.86 -51.93 -0.41 -0.09 16 35 H 0.06 0.48 8.14 -51.93 -0.42 0.06 16 36 H 0.09 0.73 7.86 -51.92 -0.41 0.32 16 37 H 0.05 0.52 8.14 -51.93 -0.42 0.09 16 38 H 0.09 0.93 8.14 -51.93 -0.42 0.51 16 39 H 0.09 1.36 6.05 -51.93 -0.31 1.05 16 40 H 0.07 0.95 7.84 -51.93 -0.41 0.54 16 41 H 0.10 1.09 7.77 -51.93 -0.40 0.69 16 42 H 0.09 0.88 8.14 -51.93 -0.42 0.45 16 43 H 0.40 5.41 8.47 -40.82 -0.35 5.07 16 44 H 0.06 1.45 8.14 -51.93 -0.42 1.03 16 45 H 0.05 1.05 8.14 -51.93 -0.42 0.63 16 46 H 0.03 0.62 8.04 -51.93 -0.42 0.20 16 47 H 0.11 2.54 5.40 -51.93 -0.28 2.26 16 48 H 0.26 6.77 8.32 -40.82 -0.34 6.43 16 49 H 0.09 1.71 8.10 -51.93 -0.42 1.28 16 50 H 0.10 2.17 6.92 -51.93 -0.36 1.81 16 51 H 0.07 1.29 8.14 -51.93 -0.42 0.87 16 52 H 0.07 1.24 8.14 -51.93 -0.42 0.82 16 53 H 0.09 1.78 7.98 -51.93 -0.41 1.36 16 LS Contribution 417.92 15.07 6.30 6.30 Total: -1.00 -30.39 417.92 -9.92 -40.31 By element: Atomic # 1 Polarization: 18.39 SS G_CDS: -9.58 Total: 8.82 kcal Atomic # 6 Polarization: -2.21 SS G_CDS: -0.69 Total: -2.91 kcal Atomic # 7 Polarization: -48.83 SS G_CDS: -0.17 Total: -49.00 kcal Atomic # 8 Polarization: -18.83 SS G_CDS: -0.75 Total: -19.58 kcal Atomic # 14 Polarization: 21.09 SS G_CDS: -5.03 Total: 16.05 kcal Total LS contribution 6.30 Total: 6.30 kcal Total: -30.39 -9.92 -40.31 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. ZINC001317555360.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 -52.030 kcal (2) G-P(sol) polarization free energy of solvation -30.392 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -82.422 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.921 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -40.313 kcal (6) G-S(sol) free energy of system = (1) + (5) -92.344 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.99 seconds