Wall clock time and date at job start Wed Apr 1 2020 02:01:27 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 1.50705 * 1 3 3 C 1.38256 * 119.99737 * 2 1 4 4 C 1.38222 * 119.99632 * 180.25268 * 3 2 1 5 5 C 1.38255 * 119.99732 * 359.79465 * 4 3 2 6 6 C 1.38207 * 120.00567 * 359.95260 * 5 4 3 7 7 C 1.38216 * 119.99943 * 179.77184 * 2 1 3 8 8 C 1.50696 * 120.00011 * 359.97438 * 7 2 1 9 9 C 1.50698 * 109.47061 * 84.73287 * 8 7 2 10 10 O 1.21280 * 119.99930 * 359.97438 * 9 8 7 11 11 N 1.34777 * 119.99788 * 180.02562 * 9 8 7 12 12 C 1.48116 * 127.84748 * 359.96533 * 11 9 8 13 13 C 1.54321 * 104.69598 * 140.29565 * 12 11 9 14 14 H 1.09000 * 112.60060 * 262.03460 * 13 12 11 15 15 C 1.54165 * 109.65819 * 137.80091 * 13 12 11 16 16 C 1.54842 * 104.32942 * 223.42718 * 15 13 12 17 17 C 1.54840 * 102.73686 * 38.18487 * 16 15 13 18 18 C 1.54163 * 104.32529 * 321.81362 * 17 16 15 19 19 C 1.53001 * 111.82495 * 261.23977 * 18 17 16 20 20 N 1.46496 * 109.47205 * 298.99289 * 19 18 17 21 21 C 1.36945 * 119.99718 * 179.97438 * 20 19 18 22 22 H 1.07997 * 119.99756 * 359.97438 * 21 20 19 23 23 C 1.38805 * 119.99878 * 179.97438 * 21 20 19 24 24 N 1.31624 * 120.00257 * 0.02562 * 23 21 20 25 25 Si 1.86803 * 119.99929 * 179.97438 * 23 21 20 26 26 H 1.48496 * 109.47187 * 179.97438 * 25 23 21 27 27 H 1.48494 * 109.47141 * 300.00154 * 25 23 21 28 28 H 1.48498 * 109.47018 * 60.00200 * 25 23 21 29 29 C 1.50626 * 127.74105 * 180.34515 * 11 9 8 30 30 H 1.09001 * 109.46925 * 270.22998 * 1 2 3 31 31 H 1.09000 * 109.46956 * 30.23199 * 1 2 3 32 32 H 1.08998 * 109.46816 * 150.23379 * 1 2 3 33 33 H 1.07997 * 120.00326 * 0.02562 * 3 2 1 34 34 H 1.07998 * 119.99884 * 179.76628 * 4 3 2 35 35 H 1.08005 * 119.99678 * 179.97438 * 5 4 3 36 36 H 1.07996 * 120.00481 * 180.02562 * 6 5 4 37 37 H 1.08997 * 109.47224 * 324.73028 * 8 7 2 38 38 H 1.09000 * 109.47082 * 204.72783 * 8 7 2 39 39 H 1.09001 * 110.39014 * 21.49363 * 12 11 9 40 40 H 1.09003 * 110.39515 * 259.10548 * 12 11 9 41 41 H 1.09001 * 110.45920 * 104.71152 * 15 13 12 42 42 H 1.09002 * 110.46119 * 342.13370 * 15 13 12 43 43 H 1.09000 * 110.75466 * 279.87463 * 16 15 13 44 44 H 1.08994 * 110.91913 * 156.57401 * 16 15 13 45 45 H 1.08998 * 110.46168 * 203.10497 * 17 16 15 46 46 H 1.08996 * 110.57040 * 80.58323 * 17 16 15 47 47 H 1.08997 * 109.46922 * 178.98331 * 19 18 17 48 48 H 1.09000 * 109.46483 * 58.99150 * 19 18 17 49 49 H 0.96996 * 120.00499 * 359.97438 * 20 19 18 50 50 H 0.97001 * 119.99885 * 179.97438 * 24 23 21 51 51 H 1.08995 * 110.78727 * 101.35104 * 29 11 9 52 52 H 1.09007 * 111.15423 * 338.16315 * 29 11 9 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 2.1983 1.1974 0.0000 4 6 3.5805 1.1973 -0.0053 5 6 4.2717 0.0000 -0.0063 6 6 3.5807 -1.1970 -0.0010 7 6 2.1981 -1.1970 0.0048 8 6 1.4446 -2.5020 0.0105 9 6 1.0800 -2.8778 -1.4025 10 8 1.4000 -2.1565 -2.3236 11 7 0.3973 -4.0148 -1.6427 12 6 -0.0776 -5.0147 -0.6586 13 6 -1.4758 -5.4281 -1.1641 14 1 -2.2797 -4.8994 -0.6519 15 6 -1.6442 -6.9549 -1.0329 16 6 -2.3115 -7.3826 -2.3631 17 6 -1.6130 -6.4730 -3.4034 18 6 -1.4559 -5.1195 -2.6822 19 6 -2.5556 -4.1325 -3.0790 20 7 -2.4837 -3.8745 -4.5193 21 6 -3.3751 -3.0167 -5.1065 22 1 -4.1313 -2.5308 -4.5079 23 6 -3.3067 -2.7718 -6.4711 24 7 -2.3853 -3.3644 -7.2008 25 14 -4.5231 -1.6022 -7.2723 26 1 -4.2390 -1.5126 -8.7270 27 1 -5.9043 -2.1077 -7.0673 28 1 -4.3927 -0.2560 -6.6592 29 6 -0.0480 -4.5590 -2.9747 30 1 -0.3633 0.0041 1.0277 31 1 -0.3633 0.8879 -0.5174 32 1 -0.3633 -0.8921 -0.5102 33 1 1.6583 2.1327 0.0004 34 1 4.1205 2.1326 -0.0091 35 1 5.3517 0.0000 -0.0108 36 1 4.1206 -2.1322 -0.0013 37 1 0.5366 -2.3947 0.6038 38 1 2.0715 -3.2816 0.4435 39 1 -0.1492 -4.5675 0.3329 40 1 0.5898 -5.8763 -0.6402 41 1 -2.2895 -7.1958 -0.1881 42 1 -0.6731 -7.4372 -0.9216 43 1 -3.3837 -7.1876 -2.3376 44 1 -2.1165 -8.4336 -2.5761 45 1 -2.2355 -6.3616 -4.2912 46 1 -0.6370 -6.8774 -3.6717 47 1 -2.4186 -3.1980 -2.5351 48 1 -3.5296 -4.5561 -2.8340 49 1 -1.8047 -4.3112 -5.0570 50 1 -2.3378 -3.1935 -8.1544 51 1 0.6163 -5.3560 -3.3086 52 1 -0.1018 -3.7693 -3.7242 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 ZINC001112576134.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 02:01:27 Heat of formation + Delta-G solvation = -3.569390 kcal Electronic energy + Delta-G solvation = -30721.882031 eV Core-core repulsion = 26878.762433 eV Total energy + Delta-G solvation = -3843.119598 eV No. of doubly occupied orbitals = 65 Molecular weight (most abundant/longest-lived isotopes) = 342.205 amu Computer time = 1.21 seconds Orbital eigenvalues (eV) -40.50413 -39.65253 -38.11836 -34.72883 -34.25638 -33.33815 -32.22776 -31.58358 -29.71283 -29.39558 -27.91756 -26.70145 -25.48166 -25.30905 -23.50013 -22.31380 -21.98713 -20.94821 -20.29400 -18.93543 -18.35572 -17.34857 -16.66620 -16.34229 -16.08605 -15.59302 -15.32121 -15.14446 -14.71839 -14.54879 -14.16887 -13.88436 -13.47327 -13.33555 -13.23148 -13.13539 -13.00899 -12.92709 -12.79814 -12.32829 -12.23622 -12.03420 -11.96526 -11.84030 -11.45820 -11.18271 -11.02078 -10.97903 -10.92204 -10.79023 -10.75290 -10.52774 -10.51171 -10.31328 -10.21012 -9.93319 -9.62372 -9.56320 -8.81990 -8.79248 -8.56315 -8.49894 -6.86204 -5.71042 -2.99270 1.31200 1.39901 2.85483 3.07800 3.48030 3.52476 3.53353 3.76687 4.41842 4.54113 4.59045 4.64371 4.73225 4.79177 4.92221 4.94991 4.98368 5.13717 5.19330 5.30603 5.32842 5.36177 5.37483 5.44405 5.52890 5.57340 5.59196 5.62632 5.66830 5.68615 5.69693 5.81869 5.84598 5.90373 5.96448 6.02903 6.10937 6.17988 6.18890 6.22646 6.27339 6.44111 6.45161 6.48267 6.50627 6.51092 6.63627 6.74048 6.80001 6.87560 7.00273 7.74362 7.78015 8.39943 8.47746 9.59007 10.16089 10.50804 11.51774 Molecular weight = 342.20amu Principal moments of inertia in cm(-1) A = 0.008745 B = 0.003631 C = 0.002791 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 3200.942519 B = 7709.997754 C =10030.577286 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.119 4.119 2 C -0.064 4.064 3 C -0.121 4.121 4 C -0.118 4.118 5 C -0.128 4.128 6 C -0.104 4.104 7 C -0.066 4.066 8 C -0.098 4.098 9 C 0.531 3.469 10 O -0.523 6.523 11 N -0.627 5.627 12 C 0.108 3.892 13 C -0.098 4.098 14 H 0.088 0.912 15 C -0.115 4.115 16 C -0.121 4.121 17 C -0.115 4.115 18 C -0.075 4.075 19 C 0.175 3.825 20 N -0.728 5.728 21 C -0.239 4.239 22 H 0.068 0.932 23 C -0.011 4.011 24 N -0.932 5.932 25 Si 0.905 3.095 26 H -0.291 1.291 27 H -0.287 1.287 28 H -0.287 1.287 29 C 0.117 3.883 30 H 0.069 0.931 31 H 0.069 0.931 32 H 0.068 0.932 33 H 0.121 0.879 34 H 0.119 0.881 35 H 0.119 0.881 36 H 0.118 0.882 37 H 0.101 0.899 38 H 0.097 0.903 39 H 0.073 0.927 40 H 0.071 0.929 41 H 0.063 0.937 42 H 0.066 0.934 43 H 0.067 0.933 44 H 0.062 0.938 45 H 0.084 0.916 46 H 0.063 0.937 47 H 0.016 0.984 48 H 0.021 0.979 49 H 0.384 0.616 50 H 0.255 0.745 51 H 0.068 0.932 52 H 0.099 0.901 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 9.219 -3.195 20.890 23.057 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 -0.175 4.175 2 C -0.064 4.064 3 C -0.139 4.139 4 C -0.136 4.136 5 C -0.146 4.146 6 C -0.122 4.122 7 C -0.066 4.066 8 C -0.138 4.138 9 C 0.319 3.681 10 O -0.398 6.398 11 N -0.362 5.362 12 C -0.015 4.015 13 C -0.118 4.118 14 H 0.106 0.894 15 C -0.153 4.153 16 C -0.159 4.159 17 C -0.153 4.153 18 C -0.076 4.076 19 C 0.048 3.952 20 N -0.373 5.373 21 C -0.370 4.370 22 H 0.086 0.914 23 C -0.207 4.207 24 N -0.581 5.581 25 Si 0.737 3.263 26 H -0.217 1.217 27 H -0.213 1.213 28 H -0.213 1.213 29 C -0.004 4.004 30 H 0.088 0.912 31 H 0.088 0.912 32 H 0.087 0.913 33 H 0.139 0.861 34 H 0.137 0.863 35 H 0.137 0.863 36 H 0.136 0.864 37 H 0.119 0.881 38 H 0.115 0.885 39 H 0.092 0.908 40 H 0.089 0.911 41 H 0.082 0.918 42 H 0.084 0.916 43 H 0.086 0.914 44 H 0.081 0.919 45 H 0.103 0.897 46 H 0.081 0.919 47 H 0.034 0.966 48 H 0.039 0.961 49 H 0.219 0.781 50 H 0.065 0.935 51 H 0.086 0.914 52 H 0.117 0.883 Dipole moment (debyes) X Y Z Total from point charges 9.336 -2.566 20.367 22.551 hybrid contribution -0.416 0.492 -0.712 0.960 sum 8.919 -2.074 19.655 21.683 Atomic orbital electron populations 1.20847 0.91227 1.03644 1.01796 1.19733 0.96038 0.92564 0.98096 1.20995 0.94284 0.97375 1.01248 1.21093 0.94302 0.97939 1.00299 1.21030 0.99620 0.92503 1.01452 1.20936 0.93349 0.98139 0.99791 1.19153 0.93426 0.93188 1.00860 1.20662 1.01706 0.96142 0.95292 1.20043 0.77674 0.79554 0.90847 1.90783 1.53146 1.49909 1.45994 1.49660 1.55748 1.21322 1.09489 1.22501 0.94768 0.91699 0.92525 1.22713 0.96446 0.96496 0.96114 0.89384 1.22427 1.00644 0.94145 0.98058 1.22469 1.00077 0.98876 0.94434 1.22480 1.00820 0.93033 0.98949 1.22255 0.95478 0.96323 0.93520 1.20497 0.93691 0.93929 0.87116 1.42344 1.38803 1.54195 1.01962 1.19140 1.08420 1.18267 0.91180 0.91420 1.24701 0.99037 1.00616 0.96384 1.69642 1.35715 1.46762 1.05982 0.86293 0.80677 0.80951 0.78422 1.21698 1.21344 1.21331 1.23078 0.93032 0.98917 0.85403 0.91230 0.91221 0.91345 0.86140 0.86287 0.86276 0.86366 0.88122 0.88456 0.90820 0.91053 0.91791 0.91552 0.91387 0.91881 0.89712 0.91877 0.96571 0.96144 0.78150 0.93501 0.91371 0.88267 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 14. 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 -1.45 9.22 36.01 0.33 -1.12 16 2 C -0.06 -0.85 5.88 -104.62 -0.62 -1.47 16 3 C -0.12 -1.47 9.70 -39.58 -0.38 -1.86 16 4 C -0.12 -1.33 10.05 -39.58 -0.40 -1.73 16 5 C -0.13 -1.44 10.05 -39.59 -0.40 -1.84 16 6 C -0.10 -1.26 9.68 -39.58 -0.38 -1.64 16 7 C -0.07 -0.86 4.37 -104.62 -0.46 -1.32 16 8 C -0.10 -1.13 4.13 -29.04 -0.12 -1.25 16 9 C 0.53 8.47 7.12 -10.99 -0.08 8.39 16 10 O -0.52 -11.04 16.36 5.56 0.09 -10.94 16 11 N -0.63 -9.16 3.36 -167.31 -0.56 -9.72 16 12 C 0.11 1.13 6.48 -2.46 -0.02 1.12 16 13 C -0.10 -1.14 3.52 -88.30 -0.31 -1.45 16 14 H 0.09 1.03 7.88 -51.93 -0.41 0.62 16 15 C -0.11 -1.11 6.38 -25.15 -0.16 -1.28 16 16 C -0.12 -1.41 6.90 -24.79 -0.17 -1.58 16 17 C -0.11 -1.69 5.68 -25.15 -0.14 -1.83 16 18 C -0.07 -1.16 0.61 -152.19 -0.09 -1.25 16 19 C 0.18 3.54 5.20 -4.04 -0.02 3.52 16 20 N -0.73 -18.44 4.59 -59.91 -0.27 -18.72 16 21 C -0.24 -6.80 9.99 -15.06 -0.15 -6.95 16 22 H 0.07 1.88 7.83 -52.49 -0.41 1.47 16 23 C -0.01 -0.33 5.50 -17.43 -0.10 -0.43 16 24 N -0.93 -28.64 13.06 55.49 0.72 -27.91 16 25 Si 0.91 22.98 29.55 -169.99 -5.02 17.95 16 26 H -0.29 -7.43 7.11 56.52 0.40 -7.02 16 27 H -0.29 -7.10 7.11 56.52 0.40 -6.70 16 28 H -0.29 -7.23 7.11 56.52 0.40 -6.83 16 29 C 0.12 1.97 6.08 -1.03 -0.01 1.97 16 30 H 0.07 0.67 8.14 -51.93 -0.42 0.25 16 31 H 0.07 0.84 8.09 -51.93 -0.42 0.42 16 32 H 0.07 0.96 6.15 -51.93 -0.32 0.64 16 33 H 0.12 1.23 8.06 -52.49 -0.42 0.81 16 34 H 0.12 1.04 8.06 -52.49 -0.42 0.62 16 35 H 0.12 1.05 8.06 -52.48 -0.42 0.63 16 36 H 0.12 1.21 8.06 -52.49 -0.42 0.78 16 37 H 0.10 0.98 6.82 -51.93 -0.35 0.63 16 38 H 0.10 0.86 8.05 -51.93 -0.42 0.44 16 39 H 0.07 0.60 7.30 -51.93 -0.38 0.22 16 40 H 0.07 0.64 7.25 -51.93 -0.38 0.26 16 41 H 0.06 0.53 8.14 -51.93 -0.42 0.11 16 42 H 0.07 0.57 7.25 -51.93 -0.38 0.19 16 43 H 0.07 0.84 8.14 -51.93 -0.42 0.42 16 44 H 0.06 0.65 8.14 -51.93 -0.42 0.23 16 45 H 0.08 1.52 7.16 -51.93 -0.37 1.15 16 46 H 0.06 0.86 7.19 -51.93 -0.37 0.49 16 47 H 0.02 0.36 8.14 -51.93 -0.42 -0.07 16 48 H 0.02 0.42 8.14 -51.93 -0.42 0.00 16 49 H 0.38 10.18 6.60 -40.82 -0.27 9.91 16 50 H 0.26 7.63 8.31 -40.82 -0.34 7.29 16 51 H 0.07 1.06 7.20 -51.93 -0.37 0.68 16 52 H 0.10 2.15 6.98 -51.93 -0.36 1.79 16 LS Contribution 405.92 15.07 6.12 6.12 Total: -1.00 -34.62 405.92 -11.17 -45.80 By element: Atomic # 1 Polarization: 18.01 SS G_CDS: -8.58 Total: 9.43 kcal Atomic # 6 Polarization: -8.34 SS G_CDS: -3.67 Total: -12.01 kcal Atomic # 7 Polarization: -56.24 SS G_CDS: -0.11 Total: -56.35 kcal Atomic # 8 Polarization: -11.04 SS G_CDS: 0.09 Total: -10.94 kcal Atomic # 14 Polarization: 22.98 SS G_CDS: -5.02 Total: 17.95 kcal Total LS contribution 6.12 Total: 6.12 kcal Total: -34.62 -11.17 -45.80 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. ZINC001112576134.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 42.229 kcal (2) G-P(sol) polarization free energy of solvation -34.623 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 7.605 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -11.175 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -45.798 kcal (6) G-S(sol) free energy of system = (1) + (5) -3.569 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.21 seconds