Wall clock time and date at job start Sat Apr 11 2020 06:12:03 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 1.53004 * 1 3 3 C 1.52997 * 109.47625 * 2 1 4 4 C 1.52999 * 109.46798 * 120.00336 * 2 1 3 5 5 H 1.08999 * 109.48288 * 299.97010 * 4 2 1 6 6 C 1.53091 * 109.47859 * 179.97438 * 4 2 1 7 7 C 1.53178 * 109.16566 * 182.40709 * 6 4 2 8 8 H 1.09002 * 109.61974 * 176.89186 * 7 6 4 9 9 C 1.50706 * 109.54161 * 297.11727 * 7 6 4 10 10 O 1.21277 * 120.00102 * 359.82384 * 9 7 6 11 11 N 1.34777 * 120.00000 * 179.55796 * 9 7 6 12 12 C 1.46497 * 120.00130 * 174.95845 * 11 9 7 13 13 C 1.52999 * 112.94514 * 294.48596 * 12 11 9 14 14 C 1.53001 * 109.46679 * 304.22504 * 13 12 11 15 15 O 1.42899 * 109.46768 * 175.38924 * 14 13 12 16 16 C 1.53949 * 113.74063 * 162.89057 * 12 11 9 17 17 N 1.47814 * 86.03645 * 222.08597 * 16 12 11 18 18 C 1.36938 * 134.45592 * 204.65220 * 17 16 12 19 19 H 1.08002 * 119.99998 * 179.86519 * 18 17 16 20 20 C 1.38807 * 119.99984 * 359.85651 * 18 17 16 21 21 N 1.31624 * 120.00275 * 0.02562 * 20 18 17 22 22 Si 1.86803 * 119.99887 * 180.02562 * 20 18 17 23 23 H 1.48492 * 109.47358 * 60.00646 * 22 20 18 24 24 H 1.48506 * 109.47137 * 180.02562 * 22 20 18 25 25 H 1.48496 * 109.47199 * 299.99946 * 22 20 18 26 26 C 1.47585 * 91.05209 * 24.55019 * 17 16 12 27 27 C 1.53178 * 109.03470 * 56.97789 * 7 6 4 28 28 C 1.53089 * 109.16532 * 303.02236 * 27 7 6 29 29 O 1.42902 * 109.48299 * 59.99767 * 4 2 1 30 30 H 1.09000 * 109.46990 * 300.00181 * 1 2 3 31 31 H 1.09004 * 109.47095 * 59.99509 * 1 2 3 32 32 H 1.08992 * 109.47453 * 180.02562 * 1 2 3 33 33 H 1.09001 * 109.46484 * 239.99669 * 2 1 3 34 34 H 1.08993 * 109.47485 * 180.02562 * 3 2 1 35 35 H 1.09004 * 109.47285 * 300.00374 * 3 2 1 36 36 H 1.09000 * 109.47084 * 59.99877 * 3 2 1 37 37 H 1.09007 * 109.52338 * 62.50281 * 6 4 2 38 38 H 1.09002 * 109.52364 * 302.31481 * 6 4 2 39 39 H 0.97004 * 119.99930 * 354.94881 * 11 9 7 40 40 H 1.09001 * 109.46955 * 64.22324 * 13 12 11 41 41 H 1.08996 * 109.46843 * 184.22887 * 13 12 11 42 42 H 1.08999 * 109.47706 * 295.38787 * 14 13 12 43 43 H 1.08999 * 109.47013 * 55.39661 * 14 13 12 44 44 H 0.96704 * 114.00314 * 180.02562 * 15 14 13 45 45 H 1.08991 * 113.77123 * 336.34996 * 16 12 11 46 46 H 1.09003 * 113.76778 * 107.74929 * 16 12 11 47 47 H 0.96998 * 119.99786 * 179.97438 * 21 20 18 48 48 H 1.09002 * 113.76798 * 221.15433 * 26 17 16 49 49 H 1.08996 * 113.86794 * 89.76310 * 26 17 16 50 50 H 1.09004 * 109.52077 * 62.92879 * 27 7 6 51 51 H 1.08998 * 109.52398 * 183.11275 * 27 7 6 52 52 H 1.09001 * 109.47848 * 177.59014 * 28 27 7 53 53 H 1.08998 * 109.48433 * 297.62437 * 28 27 7 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 6 2.0402 1.4424 0.0000 4 6 2.0400 -0.7213 1.2492 5 1 1.6771 -0.2074 2.1393 6 6 3.5709 -0.7220 1.2491 7 6 4.0735 -1.4976 2.4707 8 1 5.1620 -1.5500 2.4485 9 6 3.6278 -0.7991 3.7296 10 8 2.9754 0.2207 3.6587 11 7 3.9499 -1.3107 4.9342 12 6 3.6132 -0.5757 6.1559 13 6 4.3702 0.7477 6.2835 14 6 5.8750 0.4847 6.1989 15 8 6.5774 1.7291 6.2101 16 6 3.6549 -1.4390 7.4299 17 7 2.4112 -0.7417 7.8196 18 6 1.7965 -0.4721 9.0132 19 1 0.8646 0.0736 9.0296 20 6 2.3710 -0.9003 10.2020 21 7 3.5069 -1.5651 10.1822 22 14 1.5321 -0.5332 11.8302 23 1 0.1817 -1.1507 11.8417 24 1 2.3422 -1.0929 12.9418 25 1 1.4059 0.9364 12.0017 26 6 2.0994 -0.4507 6.4067 27 6 3.4914 -2.9141 2.4373 28 6 1.9636 -2.8287 2.3915 29 8 1.5637 -2.0686 1.2494 30 1 -0.3633 0.5139 0.8900 31 1 -0.3633 0.5139 -0.8900 32 1 -0.3634 -1.0276 0.0005 33 1 1.8933 -0.5139 -0.8900 34 1 3.1301 1.4424 -0.0005 35 1 1.6768 1.9564 -0.8900 36 1 1.6768 1.9563 0.8900 37 1 3.9356 0.3042 1.2939 38 1 3.9349 -1.1996 0.3394 39 1 4.4044 -2.1657 4.9922 40 1 4.0721 1.4161 5.4757 41 1 4.1354 1.2095 7.2425 42 1 6.1875 -0.1165 7.0527 43 1 6.0989 -0.0505 5.2761 44 1 7.5388 1.6386 6.1585 45 1 3.5211 -2.5044 7.2432 46 1 4.5031 -1.2229 8.0795 47 1 3.9085 -1.8639 11.0130 48 1 1.7081 0.5531 6.2409 49 1 1.5077 -1.2241 5.9173 50 1 3.8538 -3.4360 1.5516 51 1 3.7994 -3.4556 3.3317 52 1 1.5453 -3.8330 2.3244 53 1 1.5993 -2.3428 3.2966 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 ZINC001675105512.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 06:12:03 Heat of formation + Delta-G solvation = -93.867255 kcal Electronic energy + Delta-G solvation = -32493.797931 eV Core-core repulsion = 28366.765282 eV Total energy + Delta-G solvation = -4127.032648 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 1.04 seconds Orbital eigenvalues (eV) -40.80628 -39.22346 -37.53108 -36.41501 -35.45971 -33.90496 -33.49806 -31.82298 -30.36764 -30.03582 -27.34284 -27.08505 -25.48712 -25.08530 -23.81025 -23.39443 -22.25819 -21.31910 -20.23809 -19.38918 -18.65994 -17.18910 -16.81759 -16.63154 -16.51749 -16.23925 -15.52701 -15.02930 -14.82575 -14.72390 -14.42690 -14.26852 -13.94884 -13.84775 -13.71770 -13.52664 -13.35142 -12.71746 -12.66883 -12.45795 -12.29289 -12.10882 -11.84536 -11.71838 -11.62924 -11.53716 -11.28602 -11.17800 -11.08976 -10.94392 -10.86946 -10.77990 -10.75348 -10.57201 -10.29933 -10.12649 -9.93786 -9.70231 -9.61506 -9.42019 -9.03462 -8.90379 -8.59331 -6.95369 -5.82878 -3.14681 2.85169 3.36131 3.40118 3.42866 3.45498 3.74739 4.42101 4.44787 4.46889 4.63989 4.67274 4.80156 4.92150 5.02798 5.08015 5.18101 5.20651 5.29461 5.31206 5.43654 5.46607 5.49825 5.55221 5.60844 5.63125 5.66751 5.69492 5.77799 5.79164 5.82792 5.86789 5.90860 5.91131 5.97714 6.07205 6.13158 6.30125 6.30891 6.36421 6.45684 6.49564 6.62629 6.71740 6.81505 7.08117 7.28184 7.29550 7.45053 7.80436 7.85348 7.91886 8.51642 8.99098 9.65297 10.51366 11.34657 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.013463 B = 0.003269 C = 0.003022 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2079.261535 B = 8563.647084 C = 9264.577314 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.143 4.143 2 C -0.084 4.084 3 C -0.146 4.146 4 C 0.084 3.916 5 H 0.089 0.911 6 C -0.127 4.127 7 C -0.114 4.114 8 H 0.097 0.903 9 C 0.515 3.485 10 O -0.530 6.530 11 N -0.715 5.715 12 C 0.124 3.876 13 C -0.094 4.094 14 C 0.082 3.918 15 O -0.575 6.575 16 C 0.167 3.833 17 N -0.604 5.604 18 C -0.220 4.220 19 H 0.081 0.919 20 C -0.006 4.006 21 N -0.923 5.923 22 Si 0.913 3.087 23 H -0.285 1.285 24 H -0.290 1.290 25 H -0.283 1.283 26 C 0.131 3.869 27 C -0.146 4.146 28 C 0.060 3.940 29 O -0.381 6.381 30 H 0.054 0.946 31 H 0.050 0.950 32 H 0.061 0.939 33 H 0.070 0.930 34 H 0.057 0.943 35 H 0.055 0.945 36 H 0.061 0.939 37 H 0.082 0.918 38 H 0.071 0.929 39 H 0.395 0.605 40 H 0.072 0.928 41 H 0.089 0.911 42 H 0.049 0.951 43 H 0.035 0.965 44 H 0.372 0.628 45 H 0.030 0.970 46 H 0.081 0.919 47 H 0.255 0.745 48 H 0.051 0.949 49 H 0.034 0.966 50 H 0.080 0.920 51 H 0.078 0.922 52 H 0.094 0.906 53 H 0.053 0.947 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 4.556 -1.764 -19.678 20.275 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 -0.201 4.201 2 C -0.103 4.103 3 C -0.203 4.203 4 C 0.027 3.973 5 H 0.106 0.894 6 C -0.165 4.165 7 C -0.136 4.136 8 H 0.115 0.885 9 C 0.300 3.700 10 O -0.406 6.406 11 N -0.366 5.366 12 C 0.037 3.963 13 C -0.133 4.133 14 C 0.005 3.995 15 O -0.379 6.379 16 C 0.041 3.959 17 N -0.331 5.331 18 C -0.348 4.348 19 H 0.099 0.901 20 C -0.202 4.202 21 N -0.570 5.570 22 Si 0.743 3.257 23 H -0.212 1.212 24 H -0.215 1.215 25 H -0.210 1.210 26 C 0.004 3.996 27 C -0.184 4.184 28 C -0.017 4.017 29 O -0.300 6.300 30 H 0.073 0.927 31 H 0.069 0.931 32 H 0.080 0.920 33 H 0.088 0.912 34 H 0.076 0.924 35 H 0.074 0.926 36 H 0.080 0.920 37 H 0.100 0.900 38 H 0.090 0.910 39 H 0.229 0.771 40 H 0.091 0.909 41 H 0.108 0.892 42 H 0.067 0.933 43 H 0.054 0.946 44 H 0.217 0.783 45 H 0.047 0.953 46 H 0.099 0.901 47 H 0.064 0.936 48 H 0.069 0.931 49 H 0.051 0.949 50 H 0.099 0.901 51 H 0.096 0.904 52 H 0.112 0.888 53 H 0.071 0.929 Dipole moment (debyes) X Y Z Total from point charges 3.320 -0.850 -19.448 19.748 hybrid contribution 0.651 -0.739 1.182 1.539 sum 3.971 -1.590 -18.266 18.761 Atomic orbital electron populations 1.21759 0.94803 1.02194 1.01304 1.21046 0.96437 0.95695 0.97098 1.21844 1.01166 0.95247 1.02075 1.22442 0.92335 0.82898 0.99670 0.89379 1.22024 0.97195 1.01162 0.96114 1.21466 1.01898 0.96157 0.94064 0.88500 1.20481 0.79673 0.85098 0.84734 1.90643 1.38128 1.24911 1.86925 1.46245 1.60807 1.23826 1.05765 1.22932 0.96489 0.93284 0.83558 1.21316 0.91617 0.96159 1.04160 1.22133 0.93234 0.85094 0.99059 1.86501 1.22361 1.31551 1.97526 1.22569 0.92199 0.93022 0.88151 1.45711 1.23908 1.63819 0.99648 1.18959 1.04174 1.30050 0.81610 0.90074 1.24757 0.97579 1.00296 0.97588 1.69773 1.18725 1.42373 1.26151 0.86179 0.78447 0.77994 0.83040 1.21163 1.21550 1.20976 1.22754 0.92371 0.98665 0.85786 1.22184 0.97464 0.95232 1.03514 1.22529 0.93278 0.96474 0.89434 1.87853 1.74759 1.23886 1.43488 0.92726 0.93121 0.92025 0.91166 0.92402 0.92609 0.92017 0.89951 0.91050 0.77085 0.90925 0.89224 0.93282 0.94640 0.78265 0.95266 0.90092 0.93557 0.93125 0.94881 0.90141 0.90377 0.88824 0.92914 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 15. 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 -0.14 -1.53 9.05 37.16 0.34 -1.19 16 2 C -0.08 -0.91 2.72 -90.62 -0.25 -1.15 16 3 C -0.15 -1.45 8.84 37.16 0.33 -1.13 16 4 C 0.08 1.04 1.94 -26.68 -0.05 0.99 16 5 H 0.09 1.36 5.81 -51.93 -0.30 1.05 16 6 C -0.13 -1.39 4.13 -26.59 -0.11 -1.50 16 7 C -0.11 -1.21 3.05 -91.59 -0.28 -1.49 16 8 H 0.10 0.85 8.14 -51.93 -0.42 0.42 16 9 C 0.51 7.23 5.48 -10.98 -0.06 7.17 16 10 O -0.53 -9.19 12.26 5.56 0.07 -9.12 16 11 N -0.72 -10.12 4.39 -49.07 -0.22 -10.34 16 12 C 0.12 2.26 0.67 -134.03 -0.09 2.17 16 13 C -0.09 -1.77 4.83 -26.73 -0.13 -1.89 16 14 C 0.08 1.30 6.86 37.16 0.25 1.55 16 15 O -0.57 -8.92 13.66 -35.23 -0.48 -9.40 16 16 C 0.17 3.65 6.71 -2.84 -0.02 3.63 16 17 N -0.60 -15.17 3.55 -177.48 -0.63 -15.80 16 18 C -0.22 -6.12 10.70 -15.06 -0.16 -6.28 16 19 H 0.08 2.20 7.83 -52.49 -0.41 1.79 16 20 C -0.01 -0.16 5.50 -17.43 -0.10 -0.26 16 21 N -0.92 -26.42 11.39 55.49 0.63 -25.78 16 22 Si 0.91 21.96 29.55 -169.99 -5.02 16.94 16 23 H -0.29 -6.78 7.11 56.52 0.40 -6.38 16 24 H -0.29 -6.99 7.11 56.52 0.40 -6.59 16 25 H -0.28 -6.75 7.11 56.52 0.40 -6.35 16 26 C 0.13 2.80 7.50 -2.96 -0.02 2.78 16 27 C -0.15 -1.36 5.56 -26.59 -0.15 -1.51 16 28 C 0.06 0.69 6.61 37.20 0.25 0.93 16 29 O -0.38 -4.90 9.73 -35.23 -0.34 -5.25 16 30 H 0.05 0.62 8.14 -51.93 -0.42 0.20 16 31 H 0.05 0.46 8.14 -51.93 -0.42 0.04 16 32 H 0.06 0.69 7.68 -51.93 -0.40 0.29 16 33 H 0.07 0.72 8.14 -51.93 -0.42 0.29 16 34 H 0.06 0.55 6.49 -51.93 -0.34 0.21 16 35 H 0.05 0.47 8.14 -51.93 -0.42 0.05 16 36 H 0.06 0.69 8.14 -51.93 -0.42 0.27 16 37 H 0.08 0.94 6.46 -51.93 -0.34 0.61 16 38 H 0.07 0.68 8.14 -51.93 -0.42 0.26 16 39 H 0.40 4.58 7.95 -40.82 -0.32 4.26 16 40 H 0.07 1.43 7.15 -51.93 -0.37 1.06 16 41 H 0.09 1.97 8.02 -51.93 -0.42 1.55 16 42 H 0.05 0.79 7.61 -51.93 -0.40 0.39 16 43 H 0.04 0.49 7.53 -51.93 -0.39 0.10 16 44 H 0.37 3.76 9.12 45.56 0.42 4.18 16 45 H 0.03 0.64 8.14 -51.93 -0.42 0.22 16 46 H 0.08 1.95 6.60 -51.93 -0.34 1.61 16 47 H 0.25 7.11 8.31 -40.82 -0.34 6.77 16 48 H 0.05 1.13 8.10 -51.93 -0.42 0.71 16 49 H 0.03 0.71 8.14 -51.93 -0.42 0.29 16 50 H 0.08 0.66 8.14 -51.93 -0.42 0.24 16 51 H 0.08 0.64 7.39 -51.93 -0.38 0.25 16 52 H 0.09 0.92 8.14 -51.93 -0.42 0.50 16 53 H 0.05 0.72 7.38 -51.93 -0.38 0.33 16 LS Contribution 404.99 15.07 6.10 6.10 Total: -1.00 -32.48 404.99 -8.72 -41.20 By element: Atomic # 1 Polarization: 17.20 SS G_CDS: -8.58 Total: 8.62 kcal Atomic # 6 Polarization: 3.08 SS G_CDS: -0.25 Total: 2.83 kcal Atomic # 7 Polarization: -51.71 SS G_CDS: -0.21 Total: -51.92 kcal Atomic # 8 Polarization: -23.01 SS G_CDS: -0.76 Total: -23.77 kcal Atomic # 14 Polarization: 21.96 SS G_CDS: -5.02 Total: 16.94 kcal Total LS contribution 6.10 Total: 6.10 kcal Total: -32.48 -8.72 -41.20 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. ZINC001675105512.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 -52.670 kcal (2) G-P(sol) polarization free energy of solvation -32.478 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -85.148 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.719 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -41.197 kcal (6) G-S(sol) free energy of system = (1) + (5) -93.867 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.04 seconds