Wall clock time and date at job start Sat Apr 11 2020 06:10:53 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 1.52996 * 1 3 3 O 1.45196 * 109.47441 * 2 1 4 4 C 1.34232 * 117.00035 * 179.97438 * 3 2 1 5 5 O 1.20828 * 119.99998 * 0.02562 * 4 3 2 6 6 C 1.50697 * 120.00056 * 179.97438 * 4 3 2 7 7 C 1.53039 * 109.46028 * 179.97438 * 6 4 3 8 8 C 1.53194 * 109.31306 * 181.38469 * 7 6 4 9 9 N 1.46926 * 108.77625 * 305.37006 * 8 7 6 10 10 C 1.34773 * 120.63002 * 233.58235 * 9 8 7 11 11 O 1.21283 * 119.99903 * 354.30412 * 10 9 8 12 12 C 1.50701 * 120.00146 * 174.57801 * 10 9 8 13 13 H 1.08995 * 109.47029 * 314.50653 * 12 10 9 14 14 C 1.53003 * 109.47017 * 74.50413 * 12 10 9 15 15 N 1.46895 * 109.47258 * 194.50201 * 12 10 9 16 16 C 1.46901 * 110.99980 * 153.93100 * 15 12 10 17 17 H 1.08997 * 109.47183 * 35.85968 * 16 15 12 18 18 C 1.50699 * 109.46980 * 275.85755 * 16 15 12 19 19 H 1.07995 * 120.00252 * 0.02562 * 18 16 15 20 20 C 1.37883 * 119.99747 * 179.97438 * 18 16 15 21 21 N 1.31520 * 119.99720 * 180.02562 * 20 18 16 22 22 Si 1.86794 * 120.00037 * 0.02562 * 20 18 16 23 23 H 1.48494 * 109.47103 * 89.99997 * 22 20 18 24 24 H 1.48501 * 109.46711 * 209.99893 * 22 20 18 25 25 H 1.48505 * 109.47155 * 329.99614 * 22 20 18 26 26 C 1.53000 * 109.47203 * 155.85883 * 16 15 12 27 27 C 1.53001 * 109.47087 * 295.21894 * 26 16 15 28 28 C 1.46925 * 118.74019 * 53.85967 * 9 8 7 29 29 C 1.53035 * 109.46260 * 300.07247 * 6 4 3 30 30 H 1.09001 * 109.47480 * 300.00539 * 1 2 3 31 31 H 1.09008 * 109.46766 * 60.00363 * 1 2 3 32 32 H 1.09004 * 109.47563 * 179.97438 * 1 2 3 33 33 H 1.09001 * 109.47480 * 239.99461 * 2 1 3 34 34 H 1.09009 * 109.46807 * 120.00186 * 2 1 3 35 35 H 1.09006 * 109.45776 * 60.03289 * 6 4 3 36 36 H 1.09008 * 109.49436 * 61.44088 * 7 6 4 37 37 H 1.08999 * 109.49944 * 301.34266 * 7 6 4 38 38 H 1.08999 * 109.58694 * 185.57863 * 8 7 6 39 39 H 1.08998 * 109.70056 * 65.22432 * 8 7 6 40 40 H 1.09000 * 109.47224 * 55.17874 * 14 12 10 41 41 H 1.08999 * 109.47185 * 175.17648 * 14 12 10 42 42 H 1.09006 * 109.46867 * 295.17815 * 14 12 10 43 43 H 1.00900 * 111.00212 * 277.88398 * 15 12 10 44 44 H 0.96996 * 119.99536 * 179.97438 * 21 20 18 45 45 H 1.09006 * 109.46930 * 55.21907 * 26 16 15 46 46 H 1.08995 * 109.47126 * 175.21700 * 26 16 15 47 47 H 1.09000 * 109.47061 * 306.05585 * 27 26 16 48 48 H 1.09003 * 109.46691 * 66.05819 * 27 26 16 49 49 H 1.08996 * 109.47031 * 186.05465 * 27 26 16 50 50 H 1.08999 * 109.58809 * 65.92354 * 28 9 8 51 51 H 1.08995 * 109.59100 * 186.35290 * 28 9 8 52 52 H 1.09001 * 109.49680 * 298.56893 * 29 6 4 53 53 H 1.09003 * 109.49783 * 58.66034 * 29 6 4 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 1.5300 0.0000 0.0000 3 8 2.0140 1.3689 0.0000 4 6 3.3448 1.5447 0.0005 5 8 4.0808 0.5864 0.0005 6 6 3.9209 2.9372 0.0000 7 6 5.4491 2.8567 0.0014 8 6 6.0311 4.2734 0.0358 9 7 5.4683 5.0431 -1.0821 10 6 6.2763 5.6763 -1.9554 11 8 7.4738 5.7009 -1.7654 12 6 5.6910 6.3589 -3.1648 13 1 4.9604 5.7010 -3.6353 14 6 5.0058 7.6578 -2.7355 15 7 6.7631 6.6640 -4.1215 16 6 6.2399 6.7387 -5.4922 17 1 5.2420 7.1768 -5.4769 18 6 6.1711 5.3526 -6.0798 19 1 6.4843 4.5014 -5.4935 20 6 5.7074 5.1712 -7.3655 21 7 5.6468 3.9615 -7.8782 22 14 5.1651 6.6434 -8.3793 23 1 6.3250 7.1761 -9.1382 24 1 4.1019 6.2262 -9.3284 25 1 4.6372 7.6983 -7.4771 26 6 7.1658 7.6086 -6.3448 27 6 7.1429 9.0453 -5.8190 28 6 4.0079 5.1145 -1.2262 29 6 3.4483 3.6841 -1.2494 30 1 -0.3634 0.5139 0.8899 31 1 -0.3633 0.5138 -0.8901 32 1 -0.3634 -1.0277 -0.0005 33 1 1.8934 -0.5139 -0.8899 34 1 1.8933 -0.5139 0.8901 35 1 3.5848 3.4695 0.8899 36 1 5.7874 2.3464 -0.9005 37 1 5.7836 2.3046 0.8797 38 1 7.1155 4.2255 -0.0628 39 1 5.7708 4.7548 0.9785 40 1 5.7151 8.2796 -2.1893 41 1 4.6575 8.1938 -3.6184 42 1 4.1565 7.4253 -2.0930 43 1 7.2406 7.5165 -3.8699 44 1 5.3203 3.8339 -8.7825 45 1 8.1821 7.2183 -6.2914 46 1 6.8254 7.5952 -7.3801 47 1 6.1127 9.3983 -5.7713 48 1 7.5835 9.0744 -4.8224 49 1 7.7161 9.6864 -6.4886 50 1 3.5839 5.6617 -0.3842 51 1 3.7569 5.6217 -2.1578 52 1 3.8049 3.1660 -2.1396 53 1 2.3589 3.7206 -1.2611 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 ZINC000579855005.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 06:10:53 Heat of formation + Delta-G solvation = -121.723578 kcal Electronic energy + Delta-G solvation = -31360.639151 eV Core-core repulsion = 27232.398562 eV Total energy + Delta-G solvation = -4128.240589 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.67 seconds Orbital eigenvalues (eV) -40.93633 -39.90182 -37.64670 -36.76314 -36.37379 -33.62576 -32.91972 -31.99038 -31.78385 -31.11278 -28.86893 -26.74810 -26.66569 -24.31893 -23.33560 -23.17798 -22.45328 -21.62018 -20.36238 -19.86561 -18.87546 -17.89219 -17.04238 -16.80556 -16.71680 -16.21502 -15.95345 -15.19019 -14.92825 -14.67965 -14.44341 -14.14236 -14.07454 -13.87302 -13.61376 -13.41465 -13.19438 -13.08210 -12.88630 -12.73000 -12.40223 -12.25411 -12.15376 -12.06253 -12.02342 -11.96200 -11.79861 -11.62392 -11.38903 -11.12466 -10.96524 -10.96242 -10.80475 -10.74480 -10.55971 -10.44048 -10.29483 -10.08505 -9.50213 -9.22500 -9.12568 -8.53595 -8.52538 -7.36941 -6.04418 -4.01957 2.03922 2.43734 3.03760 3.16364 3.24977 3.33519 3.36752 4.29660 4.39176 4.47313 4.51222 4.64505 4.69934 4.76990 4.89378 4.97586 4.98570 5.07107 5.13913 5.22413 5.26660 5.34210 5.40491 5.42374 5.47402 5.52466 5.54911 5.65229 5.66846 5.68767 5.73885 5.82403 5.85801 5.92414 5.95432 5.96345 6.10421 6.14579 6.26412 6.28374 6.47093 6.60020 6.63114 6.69500 6.79259 7.15378 7.55922 7.58766 7.70271 7.94212 8.23304 8.61528 8.75293 9.09045 9.58016 11.08885 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.011654 B = 0.003078 C = 0.002663 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2401.983450 B = 9094.644579 C =10512.960674 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.152 4.152 2 C 0.060 3.940 3 O -0.358 6.358 4 C 0.466 3.534 5 O -0.505 6.505 6 C -0.076 4.076 7 C -0.120 4.120 8 C 0.116 3.884 9 N -0.623 5.623 10 C 0.530 3.470 11 O -0.523 6.523 12 C 0.074 3.926 13 H 0.110 0.890 14 C -0.181 4.181 15 N -0.653 5.653 16 C 0.192 3.808 17 H 0.002 0.998 18 C -0.498 4.498 19 H 0.080 0.920 20 C 0.068 3.932 21 N -0.899 5.899 22 Si 0.882 3.118 23 H -0.279 1.279 24 H -0.298 1.298 25 H -0.268 1.268 26 C -0.135 4.135 27 C -0.157 4.157 28 C 0.109 3.891 29 C -0.131 4.131 30 H 0.065 0.935 31 H 0.068 0.932 32 H 0.078 0.922 33 H 0.071 0.929 34 H 0.068 0.932 35 H 0.109 0.891 36 H 0.080 0.920 37 H 0.082 0.918 38 H 0.097 0.903 39 H 0.064 0.936 40 H 0.057 0.943 41 H 0.067 0.933 42 H 0.062 0.938 43 H 0.328 0.672 44 H 0.263 0.737 45 H 0.070 0.930 46 H 0.054 0.946 47 H 0.045 0.955 48 H 0.051 0.949 49 H 0.045 0.955 50 H 0.071 0.929 51 H 0.099 0.901 52 H 0.081 0.919 53 H 0.089 0.911 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -10.841 1.016 18.340 21.329 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 -0.209 4.209 2 C -0.014 4.014 3 O -0.275 6.275 4 C 0.309 3.691 5 O -0.392 6.392 6 C -0.095 4.095 7 C -0.158 4.158 8 C -0.006 4.006 9 N -0.359 5.359 10 C 0.318 3.682 11 O -0.396 6.396 12 C -0.040 4.040 13 H 0.127 0.873 14 C -0.240 4.240 15 N -0.284 5.284 16 C 0.084 3.916 17 H 0.020 0.980 18 C -0.537 4.537 19 H 0.098 0.902 20 C -0.134 4.134 21 N -0.538 5.538 22 Si 0.712 3.288 23 H -0.206 1.206 24 H -0.225 1.225 25 H -0.193 1.193 26 C -0.173 4.173 27 C -0.215 4.215 28 C -0.014 4.014 29 C -0.169 4.169 30 H 0.085 0.915 31 H 0.087 0.913 32 H 0.097 0.903 33 H 0.089 0.911 34 H 0.086 0.914 35 H 0.127 0.873 36 H 0.099 0.901 37 H 0.100 0.900 38 H 0.116 0.884 39 H 0.082 0.918 40 H 0.076 0.924 41 H 0.086 0.914 42 H 0.081 0.919 43 H 0.147 0.853 44 H 0.073 0.927 45 H 0.089 0.911 46 H 0.072 0.928 47 H 0.064 0.936 48 H 0.070 0.930 49 H 0.064 0.936 50 H 0.089 0.911 51 H 0.117 0.883 52 H 0.100 0.900 53 H 0.107 0.893 Dipole moment (debyes) X Y Z Total from point charges -9.802 -0.046 18.187 20.660 hybrid contribution -0.878 1.187 -0.719 1.642 sum -10.680 1.142 17.468 20.506 Atomic orbital electron populations 1.21806 0.92569 1.02983 1.03577 1.23033 0.95406 0.80274 1.02643 1.86499 1.24626 1.32360 1.83985 1.23804 0.80496 0.92736 0.72074 1.90680 1.60434 1.43155 1.44912 1.21094 0.96839 0.89658 1.01902 1.21876 0.91682 0.97698 1.04581 1.21480 1.00520 0.89712 0.88916 1.48167 1.06371 1.52482 1.28926 1.20953 0.86599 0.77743 0.82928 1.90631 1.15153 1.59380 1.74460 1.21395 0.94559 0.96359 0.91673 0.87259 1.22577 1.00942 0.98271 1.02213 1.60123 1.25922 1.40691 1.01712 1.19664 0.91551 0.96230 0.84181 0.98025 1.21054 1.41898 0.91860 0.98874 0.90169 1.24960 0.95470 0.95365 0.97556 1.69895 1.47231 1.20778 1.15880 0.86956 0.77911 0.83473 0.80441 1.20574 1.22546 1.19271 1.22100 1.02332 0.93286 0.99574 1.21920 1.00650 0.98237 1.00650 1.21901 0.80116 0.96069 1.03362 1.22062 1.01812 0.96162 0.96872 0.91549 0.91277 0.90275 0.91085 0.91367 0.87305 0.90080 0.89972 0.88434 0.91751 0.92381 0.91362 0.91932 0.85253 0.92731 0.91142 0.92793 0.93609 0.93002 0.93572 0.91105 0.88319 0.90013 0.89277 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 13. 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 -0.95 10.29 37.16 0.38 -0.56 16 2 C 0.06 0.53 6.19 37.16 0.23 0.76 16 3 O -0.36 -3.80 10.10 -39.26 -0.40 -4.19 16 4 C 0.47 5.55 7.26 36.00 0.26 5.81 16 5 O -0.50 -7.53 15.73 -18.75 -0.29 -7.82 16 6 C -0.08 -0.74 2.59 -91.73 -0.24 -0.98 16 7 C -0.12 -1.36 4.65 -26.61 -0.12 -1.48 16 8 C 0.12 1.37 6.41 -3.71 -0.02 1.34 16 9 N -0.62 -8.33 2.97 -172.51 -0.51 -8.84 16 10 C 0.53 9.24 7.01 -10.99 -0.08 9.17 16 11 O -0.52 -11.00 15.94 5.55 0.09 -10.92 16 12 C 0.07 1.30 1.94 -68.87 -0.13 1.16 16 13 H 0.11 2.04 6.61 -51.93 -0.34 1.70 16 14 C -0.18 -2.42 8.81 37.16 0.33 -2.09 16 15 N -0.65 -13.51 5.58 -102.17 -0.57 -14.08 16 16 C 0.19 4.37 1.44 -68.86 -0.10 4.27 16 17 H 0.00 0.05 6.23 -51.93 -0.32 -0.27 16 18 C -0.50 -13.86 9.04 -34.44 -0.31 -14.17 16 19 H 0.08 2.53 8.06 -52.49 -0.42 2.10 16 20 C 0.07 1.93 5.45 -17.81 -0.10 1.83 16 21 N -0.90 -27.37 13.96 55.43 0.77 -26.60 16 22 Si 0.88 21.43 24.41 -169.99 -4.15 17.28 16 23 H -0.28 -6.68 6.83 56.52 0.39 -6.29 16 24 H -0.30 -7.29 7.11 56.52 0.40 -6.89 16 25 H -0.27 -6.12 6.53 56.52 0.37 -5.75 16 26 C -0.14 -2.87 5.03 -26.73 -0.13 -3.01 16 27 C -0.16 -2.65 9.62 37.16 0.36 -2.29 16 28 C 0.11 1.10 5.46 -3.49 -0.02 1.08 16 29 C -0.13 -1.32 5.32 -26.39 -0.14 -1.46 16 30 H 0.07 0.38 8.14 -51.93 -0.42 -0.04 16 31 H 0.07 0.44 8.14 -51.92 -0.42 0.02 16 32 H 0.08 0.37 8.14 -51.93 -0.42 -0.06 16 33 H 0.07 0.67 8.13 -51.93 -0.42 0.25 16 34 H 0.07 0.58 8.13 -51.92 -0.42 0.16 16 35 H 0.11 0.80 8.14 -51.93 -0.42 0.37 16 36 H 0.08 1.14 8.13 -51.92 -0.42 0.72 16 37 H 0.08 0.85 8.07 -51.93 -0.42 0.43 16 38 H 0.10 1.34 7.04 -51.93 -0.37 0.98 16 39 H 0.06 0.60 8.14 -51.93 -0.42 0.17 16 40 H 0.06 0.75 8.14 -51.93 -0.42 0.33 16 41 H 0.07 0.94 7.45 -51.93 -0.39 0.55 16 42 H 0.06 0.66 6.08 -51.93 -0.32 0.34 16 43 H 0.33 6.25 6.29 -39.29 -0.25 6.00 16 44 H 0.26 7.52 8.31 -40.82 -0.34 7.18 16 45 H 0.07 1.54 8.14 -51.93 -0.42 1.12 16 46 H 0.05 1.22 3.22 -51.93 -0.17 1.06 16 47 H 0.04 0.74 8.14 -51.93 -0.42 0.32 16 48 H 0.05 0.79 6.63 -51.93 -0.34 0.45 16 49 H 0.05 0.70 8.14 -51.93 -0.42 0.27 16 50 H 0.07 0.53 8.14 -51.93 -0.42 0.11 16 51 H 0.10 1.04 4.61 -51.93 -0.24 0.80 16 52 H 0.08 1.04 8.14 -51.93 -0.42 0.61 16 53 H 0.09 0.74 8.08 -51.93 -0.42 0.32 16 LS Contribution 406.28 15.07 6.12 6.12 Total: -1.00 -34.71 406.28 -7.87 -42.58 By element: Atomic # 1 Polarization: 16.17 SS G_CDS: -9.10 Total: 7.08 kcal Atomic # 6 Polarization: -0.77 SS G_CDS: 0.16 Total: -0.61 kcal Atomic # 7 Polarization: -49.21 SS G_CDS: -0.31 Total: -49.52 kcal Atomic # 8 Polarization: -22.33 SS G_CDS: -0.60 Total: -22.93 kcal Atomic # 14 Polarization: 21.43 SS G_CDS: -4.15 Total: 17.28 kcal Total LS contribution 6.12 Total: 6.12 kcal Total: -34.71 -7.87 -42.58 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. ZINC000579855005.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 -79.142 kcal (2) G-P(sol) polarization free energy of solvation -34.710 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -113.852 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -7.871 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -42.581 kcal (6) G-S(sol) free energy of system = (1) + (5) -121.724 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.67 seconds