Wall clock time and date at job start Sat Apr 11 2020 06:11:32 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 1.53002 * 1 3 3 N 1.46499 * 109.47211 * 2 1 4 4 C 1.46497 * 120.00142 * 95.38832 * 3 2 1 5 5 C 1.50705 * 109.47231 * 270.00407 * 4 3 2 6 6 H 1.07996 * 119.99833 * 0.27003 * 5 4 3 7 7 C 1.37879 * 119.99884 * 180.02562 * 5 4 3 8 8 N 1.31511 * 119.99840 * 180.02562 * 7 5 4 9 9 Si 1.86795 * 120.00095 * 359.97438 * 7 5 4 10 10 H 1.48504 * 109.47077 * 90.00259 * 9 7 5 11 11 H 1.48497 * 109.47246 * 210.00228 * 9 7 5 12 12 H 1.48504 * 109.47324 * 330.00506 * 9 7 5 13 13 C 1.34777 * 119.99662 * 275.39253 * 3 2 1 14 14 O 1.21283 * 119.99792 * 175.59198 * 13 3 2 15 15 C 1.50700 * 120.00174 * 355.59392 * 13 3 2 16 16 H 1.09001 * 112.73836 * 346.43823 * 15 13 3 17 17 N 1.47068 * 113.46414 * 215.69703 * 15 13 3 18 18 C 1.34778 * 136.06023 * 92.37320 * 17 15 13 19 19 O 1.21517 * 119.99956 * 0.02562 * 18 17 15 20 20 O 1.34631 * 120.00314 * 179.97438 * 18 17 15 21 21 C 1.45198 * 117.00052 * 180.02562 * 20 18 17 22 22 C 1.53001 * 109.47484 * 60.00278 * 21 20 18 23 23 C 1.53009 * 109.47149 * 180.02562 * 21 20 18 24 24 C 1.53007 * 109.47108 * 300.00097 * 21 20 18 25 25 C 1.47060 * 87.88627 * 272.33689 * 17 15 13 26 26 C 1.53496 * 113.47032 * 117.26068 * 15 13 3 27 27 C 1.52997 * 114.20381 * 202.29688 * 26 15 13 28 28 C 1.53001 * 114.20454 * 335.12691 * 26 15 13 29 29 H 1.09000 * 109.46895 * 65.06927 * 1 2 3 30 30 H 1.09001 * 109.46878 * 185.06409 * 1 2 3 31 31 H 1.08993 * 109.47496 * 305.06675 * 1 2 3 32 32 H 1.09001 * 109.47486 * 239.99394 * 2 1 3 33 33 H 1.09008 * 109.46963 * 119.99574 * 2 1 3 34 34 H 1.08999 * 109.47168 * 150.00465 * 4 3 2 35 35 H 1.09001 * 109.47234 * 30.00275 * 4 3 2 36 36 H 0.96995 * 120.00291 * 180.02562 * 8 7 5 37 37 H 1.08999 * 109.47083 * 59.99482 * 22 21 20 38 38 H 1.08994 * 109.47471 * 180.02562 * 22 21 20 39 39 H 1.08998 * 109.46470 * 300.00108 * 22 21 20 40 40 H 1.09002 * 109.46529 * 60.00071 * 23 21 20 41 41 H 1.08994 * 109.46956 * 179.97438 * 23 21 20 42 42 H 1.08999 * 109.46713 * 300.00087 * 23 21 20 43 43 H 1.08997 * 109.46888 * 60.00091 * 24 21 20 44 44 H 1.09003 * 109.46783 * 180.02562 * 24 21 20 45 45 H 1.08999 * 109.46881 * 300.00032 * 24 21 20 46 46 H 1.09003 * 113.46857 * 87.65814 * 25 17 15 47 47 H 1.08999 * 113.47029 * 218.04290 * 25 17 15 48 48 H 1.08998 * 109.46929 * 60.00724 * 27 26 15 49 49 H 1.09008 * 109.46509 * 179.97438 * 27 26 15 50 50 H 1.08993 * 109.47469 * 299.99613 * 27 26 15 51 51 H 1.08996 * 109.47547 * 60.47716 * 28 26 15 52 52 H 1.08997 * 109.46976 * 180.47784 * 28 26 15 53 53 H 1.09000 * 109.46851 * 300.47284 * 28 26 15 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 7 2.0184 1.3812 0.0000 4 6 2.3749 2.0321 1.2631 5 6 1.1634 2.7268 1.8297 6 1 0.2211 2.6837 1.3039 7 6 1.2570 3.4131 3.0219 8 7 0.1997 4.0189 3.5166 9 14 2.8851 3.4813 3.9350 10 1 3.6589 4.6642 3.4796 11 1 2.6303 3.5883 5.3940 12 1 3.6606 2.2457 3.6573 13 6 2.1396 2.0530 -1.1621 14 8 2.4670 3.2208 -1.1561 15 6 1.8681 1.3533 -2.4689 16 1 1.8158 0.2697 -2.3636 17 7 2.7472 1.7937 -3.5626 18 6 3.9259 1.3953 -4.0807 19 8 4.5056 0.4384 -3.6064 20 8 4.4606 2.0568 -5.1242 21 6 5.7320 1.5716 -5.6308 22 6 5.5754 0.1234 -6.0988 23 6 6.1783 2.4427 -6.8069 24 6 6.7823 1.6380 -4.5201 25 6 1.7736 2.8597 -3.8429 26 6 0.6887 1.9507 -3.2488 27 6 0.0530 0.9913 -4.2569 28 6 -0.3340 2.6819 -2.3768 29 1 -0.3633 0.4332 -0.9319 30 1 -0.3633 -1.0237 0.0907 31 1 -0.3634 0.5904 0.8410 32 1 1.8934 -0.5139 -0.8899 33 1 1.8934 -0.5138 0.8901 34 1 3.1631 2.7636 1.0850 35 1 2.7281 1.2824 1.9711 36 1 0.2656 4.5020 4.3550 37 1 4.8272 0.0761 -6.8899 38 1 6.5299 -0.2409 -6.4786 39 1 5.2577 -0.4968 -5.2606 40 1 6.2899 3.4743 -6.4730 41 1 7.1328 2.0788 -7.1868 42 1 5.4301 2.3958 -7.5981 43 1 6.4645 1.0178 -3.6821 44 1 7.7368 1.2742 -4.9006 45 1 6.8938 2.6698 -4.1868 46 1 1.9447 3.7671 -3.2636 47 1 1.6408 3.0576 -4.9065 48 1 -0.3223 0.1115 -3.7342 49 1 -0.7721 1.4916 -4.7640 50 1 0.7999 0.6874 -4.9901 51 1 0.1531 3.5105 -1.8628 52 1 -1.1381 3.0659 -3.0044 53 1 -0.7455 1.9900 -1.6419 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 ZINC000793154318.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 06:11:32 Heat of formation + Delta-G solvation = -70.276865 kcal Electronic energy + Delta-G solvation = -32692.132249 eV Core-core repulsion = 28566.122557 eV Total energy + Delta-G solvation = -4126.009692 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.66 seconds Orbital eigenvalues (eV) -41.50104 -40.20184 -38.06535 -36.59945 -35.43116 -34.14600 -32.68463 -32.38366 -30.30880 -28.64088 -27.57640 -27.50793 -27.47500 -26.86495 -26.26512 -22.99555 -22.60726 -21.80741 -19.65798 -19.57293 -18.02182 -17.43320 -17.11553 -16.85824 -16.68018 -15.96850 -15.60833 -15.01029 -14.95149 -14.64435 -14.27750 -14.20300 -13.85953 -13.76625 -13.39518 -13.31718 -12.97917 -12.65961 -12.51220 -12.45166 -12.30356 -12.29326 -12.12959 -12.02516 -11.99133 -11.86836 -11.65069 -11.60733 -11.53191 -11.37017 -11.21476 -11.09025 -10.89843 -10.64266 -10.46876 -10.43355 -10.18735 -10.10687 -10.00152 -9.69987 -9.45937 -8.59189 -8.36354 -7.78493 -6.09515 -4.07614 1.84793 2.88591 3.09325 3.28761 3.34709 3.37581 3.70051 3.89302 4.15207 4.39238 4.58213 4.62072 4.70842 4.76522 4.84358 4.94521 5.15038 5.18110 5.24366 5.29800 5.30969 5.38628 5.40911 5.47665 5.52153 5.60717 5.61761 5.67724 5.72610 5.73789 5.80487 5.81581 5.84603 5.92486 5.97972 6.02524 6.09075 6.14758 6.15935 6.24381 6.33882 6.47323 6.56539 6.66467 6.80107 6.90600 7.28350 7.59239 7.72691 8.15637 8.36498 8.44803 8.83829 8.94545 9.51154 11.03386 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.013232 B = 0.003632 C = 0.003220 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2115.623213 B = 7708.069740 C = 8693.709414 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.177 4.177 2 C 0.106 3.894 3 N -0.582 5.582 4 C 0.216 3.784 5 C -0.523 4.523 6 H 0.079 0.921 7 C 0.073 3.927 8 N -0.896 5.896 9 Si 0.872 3.128 10 H -0.274 1.274 11 H -0.285 1.285 12 H -0.267 1.267 13 C 0.513 3.487 14 O -0.526 6.526 15 C 0.138 3.862 16 H 0.105 0.895 17 N -0.612 5.612 18 C 0.683 3.317 19 O -0.569 6.569 20 O -0.359 6.359 21 C 0.135 3.865 22 C -0.182 4.182 23 C -0.139 4.139 24 C -0.184 4.184 25 C 0.111 3.889 26 C -0.081 4.081 27 C -0.123 4.123 28 C -0.146 4.146 29 H 0.054 0.946 30 H 0.057 0.943 31 H 0.081 0.919 32 H 0.064 0.936 33 H 0.079 0.921 34 H 0.034 0.966 35 H 0.031 0.969 36 H 0.264 0.736 37 H 0.058 0.942 38 H 0.069 0.931 39 H 0.088 0.912 40 H 0.067 0.933 41 H 0.079 0.921 42 H 0.065 0.935 43 H 0.088 0.912 44 H 0.069 0.931 45 H 0.060 0.940 46 H 0.107 0.893 47 H 0.078 0.922 48 H 0.065 0.935 49 H 0.068 0.932 50 H 0.058 0.942 51 H 0.078 0.922 52 H 0.064 0.936 53 H 0.071 0.929 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 4.196 -8.185 -19.956 21.974 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 -0.235 4.235 2 C -0.018 4.018 3 N -0.314 5.314 4 C 0.096 3.904 5 C -0.561 4.561 6 H 0.097 0.903 7 C -0.129 4.129 8 N -0.535 5.535 9 Si 0.699 3.301 10 H -0.200 1.200 11 H -0.211 1.211 12 H -0.191 1.191 13 C 0.297 3.703 14 O -0.403 6.403 15 C 0.032 3.968 16 H 0.123 0.877 17 N -0.353 5.353 18 C 0.440 3.560 19 O -0.459 6.459 20 O -0.274 6.274 21 C 0.098 3.902 22 C -0.239 4.239 23 C -0.196 4.196 24 C -0.242 4.242 25 C -0.011 4.011 26 C -0.083 4.083 27 C -0.180 4.180 28 C -0.204 4.204 29 H 0.073 0.927 30 H 0.076 0.924 31 H 0.100 0.900 32 H 0.083 0.917 33 H 0.098 0.902 34 H 0.052 0.948 35 H 0.049 0.951 36 H 0.074 0.926 37 H 0.077 0.923 38 H 0.087 0.913 39 H 0.107 0.893 40 H 0.086 0.914 41 H 0.098 0.902 42 H 0.085 0.915 43 H 0.106 0.894 44 H 0.088 0.912 45 H 0.079 0.921 46 H 0.125 0.875 47 H 0.096 0.904 48 H 0.084 0.916 49 H 0.087 0.913 50 H 0.077 0.923 51 H 0.097 0.903 52 H 0.083 0.917 53 H 0.090 0.910 Dipole moment (debyes) X Y Z Total from point charges 4.813 -7.820 -19.780 21.807 hybrid contribution 0.990 0.050 0.744 1.239 sum 5.803 -7.770 -19.036 21.364 Atomic orbital electron populations 1.22380 0.95723 1.01761 1.03600 1.21536 0.94980 0.83143 1.02096 1.47922 1.63019 1.13193 1.07253 1.19732 0.97383 0.93333 0.79994 1.21293 0.96335 1.32166 1.06350 0.90298 1.24831 0.96206 0.94790 0.97081 1.69880 1.28940 1.34213 1.20468 0.86912 0.84682 0.79264 0.79205 1.20005 1.21089 1.19146 1.19990 0.78777 0.86977 0.84587 1.90659 1.47248 1.15578 1.86774 1.22751 0.86308 1.00947 0.86822 0.87707 1.47908 1.18671 1.35097 1.33640 1.17212 0.78941 0.80902 0.78933 1.90888 1.60695 1.30056 1.64217 1.86311 1.38124 1.56798 1.46147 1.22070 0.79800 0.94537 0.93792 1.22513 1.02585 0.95798 1.03039 1.21845 1.01529 1.00098 0.96154 1.22521 0.98211 1.03432 0.99994 1.23466 0.83241 0.92759 1.01667 1.22126 0.93214 0.96747 0.96181 1.21537 1.00423 0.98364 0.97645 1.21885 0.97913 1.01416 0.99169 0.92724 0.92436 0.90013 0.91747 0.90216 0.94789 0.95128 0.92604 0.92263 0.91251 0.89346 0.91428 0.90215 0.91545 0.89360 0.91227 0.92073 0.87471 0.90382 0.91615 0.91311 0.92313 0.90315 0.91681 0.91010 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 -0.18 -2.57 10.20 37.16 0.38 -2.20 16 2 C 0.11 1.68 5.92 -4.04 -0.02 1.66 16 3 N -0.58 -11.90 2.47 -175.05 -0.43 -12.33 16 4 C 0.22 5.23 4.24 -5.19 -0.02 5.20 16 5 C -0.52 -14.41 9.66 -34.44 -0.33 -14.75 16 6 H 0.08 2.33 7.46 -52.49 -0.39 1.94 16 7 C 0.07 2.09 5.47 -17.82 -0.10 1.99 16 8 N -0.90 -26.97 13.96 55.43 0.77 -26.20 16 9 Si 0.87 21.48 27.47 -169.99 -4.67 16.81 16 10 H -0.27 -6.85 7.11 56.52 0.40 -6.44 16 11 H -0.29 -6.90 7.11 56.52 0.40 -6.50 16 12 H -0.27 -6.25 6.54 56.52 0.37 -5.88 16 13 C 0.51 10.38 5.77 -10.99 -0.06 10.31 16 14 O -0.53 -12.53 13.94 5.56 0.08 -12.45 16 15 C 0.14 2.20 3.61 -73.55 -0.27 1.93 16 16 H 0.11 1.54 5.74 -51.93 -0.30 1.24 16 17 N -0.61 -9.87 3.23 -184.54 -0.60 -10.47 16 18 C 0.68 11.54 8.26 54.06 0.45 11.99 16 19 O -0.57 -10.50 12.66 -19.29 -0.24 -10.74 16 20 O -0.36 -5.34 9.91 -40.30 -0.40 -5.74 16 21 C 0.13 1.60 1.13 -90.61 -0.10 1.50 16 22 C -0.18 -1.97 8.37 37.16 0.31 -1.66 16 23 C -0.14 -1.21 8.85 37.16 0.33 -0.88 16 24 C -0.18 -2.27 8.37 37.16 0.31 -1.96 16 25 C 0.11 1.56 7.28 -8.51 -0.06 1.50 16 26 C -0.08 -1.05 1.50 -153.99 -0.23 -1.28 16 27 C -0.12 -1.19 9.23 37.16 0.34 -0.85 16 28 C -0.15 -2.02 8.46 37.16 0.31 -1.71 16 29 H 0.05 0.74 5.53 -51.93 -0.29 0.45 16 30 H 0.06 0.67 8.14 -51.93 -0.42 0.25 16 31 H 0.08 1.47 7.25 -51.93 -0.38 1.10 16 32 H 0.06 0.88 5.95 -51.93 -0.31 0.57 16 33 H 0.08 1.21 7.83 -51.92 -0.41 0.81 16 34 H 0.03 0.89 6.91 -51.93 -0.36 0.53 16 35 H 0.03 0.71 6.92 -51.93 -0.36 0.36 16 36 H 0.26 7.48 8.31 -40.82 -0.34 7.14 16 37 H 0.06 0.59 8.14 -51.93 -0.42 0.17 16 38 H 0.07 0.59 8.14 -51.93 -0.42 0.17 16 39 H 0.09 1.18 5.88 -51.93 -0.31 0.88 16 40 H 0.07 0.60 8.14 -51.93 -0.42 0.17 16 41 H 0.08 0.52 8.14 -51.93 -0.42 0.10 16 42 H 0.07 0.53 8.14 -51.93 -0.42 0.11 16 43 H 0.09 1.34 5.88 -51.93 -0.31 1.04 16 44 H 0.07 0.67 8.14 -51.93 -0.42 0.25 16 45 H 0.06 0.76 8.14 -51.93 -0.42 0.34 16 46 H 0.11 1.74 6.47 -51.93 -0.34 1.41 16 47 H 0.08 0.90 8.12 -51.93 -0.42 0.48 16 48 H 0.06 0.59 8.14 -51.93 -0.42 0.16 16 49 H 0.07 0.56 8.13 -51.92 -0.42 0.13 16 50 H 0.06 0.59 7.92 -51.93 -0.41 0.18 16 51 H 0.08 1.36 6.65 -51.93 -0.35 1.02 16 52 H 0.06 0.73 8.13 -51.93 -0.42 0.30 16 53 H 0.07 1.02 5.70 -51.93 -0.30 0.73 16 LS Contribution 408.77 15.07 6.16 6.16 Total: -1.00 -33.83 408.77 -7.12 -40.95 By element: Atomic # 1 Polarization: 12.23 SS G_CDS: -9.02 Total: 3.20 kcal Atomic # 6 Polarization: 9.57 SS G_CDS: 1.23 Total: 10.81 kcal Atomic # 7 Polarization: -48.74 SS G_CDS: -0.25 Total: -49.00 kcal Atomic # 8 Polarization: -28.37 SS G_CDS: -0.57 Total: -28.93 kcal Atomic # 14 Polarization: 21.48 SS G_CDS: -4.67 Total: 16.81 kcal Total LS contribution 6.16 Total: 6.16 kcal Total: -33.83 -7.12 -40.95 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. ZINC000793154318.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 -29.329 kcal (2) G-P(sol) polarization free energy of solvation -33.829 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -63.158 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -7.118 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -40.948 kcal (6) G-S(sol) free energy of system = (1) + (5) -70.277 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.66 seconds