Wall clock time and date at job start Sun Mar 7 2021 09:23:11 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= 0 * 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 1.53006 * 1 3 3 C 1.52996 * 109.46972 * 2 1 4 4 C 1.53000 * 109.47037 * 240.00294 * 2 1 3 5 5 Si 1.86302 * 109.47149 * 120.00213 * 2 1 3 6 6 C 1.86296 * 109.47178 * 59.99663 * 5 2 1 7 7 C 1.86305 * 109.46849 * 299.99726 * 5 2 1 8 8 O 1.63097 * 109.47094 * 180.02562 * 5 2 1 9 9 C 1.35900 * 113.99969 * 179.97438 * 8 5 2 10 10 C 1.38769 * 120.01797 * 269.72425 * 9 8 5 11 11 C 1.38224 * 120.08494 * 179.73961 * 10 9 8 12 12 C 1.38114 * 120.12444 * 0.51309 * 11 10 9 13 13 C 1.38959 * 120.04189 * 359.76688 * 12 11 10 14 14 N 1.39824 * 120.04320 * 179.97438 * 13 12 11 15 15 C 1.34780 * 119.99506 * 213.37359 * 14 13 12 16 16 O 1.21697 * 120.00667 * 5.28654 * 15 14 13 17 17 C 1.46643 * 119.99581 * 185.27947 * 15 14 13 18 18 C 1.37899 * 126.23688 * 180.02562 * 17 15 14 19 19 C 1.39825 * 107.09045 * 179.97438 * 18 17 15 20 20 C 1.35459 * 107.86702 * 0.02562 * 19 18 17 21 21 C 1.50698 * 125.56369 * 180.02562 * 20 19 18 22 22 O 1.42902 * 109.46980 * 119.97426 * 21 20 19 23 23 Si 1.86295 * 109.47105 * 359.97374 * 21 20 19 24 24 H 1.48504 * 109.46770 * 180.02562 * 23 21 20 25 25 H 1.48494 * 109.47314 * 299.99740 * 23 21 20 26 26 H 1.48495 * 109.47419 * 60.00277 * 23 21 20 27 27 N 1.35547 * 108.87126 * 359.76490 * 20 19 18 28 28 C 1.38616 * 120.01507 * 89.99930 * 9 8 5 29 29 H 1.08994 * 109.46755 * 300.00220 * 1 2 3 30 30 H 1.09003 * 109.46514 * 60.00077 * 1 2 3 31 31 H 1.08996 * 109.46860 * 179.97438 * 1 2 3 32 32 H 1.09008 * 109.47161 * 179.97438 * 3 2 1 33 33 H 1.09008 * 109.47180 * 299.99768 * 3 2 1 34 34 H 1.08994 * 109.47561 * 60.00273 * 3 2 1 35 35 H 1.09009 * 109.47051 * 299.99339 * 4 2 1 36 36 H 1.08999 * 109.47455 * 59.99725 * 4 2 1 37 37 H 1.08997 * 109.47203 * 180.02562 * 4 2 1 38 38 H 1.08997 * 109.47285 * 300.00612 * 6 5 2 39 39 H 1.08999 * 109.46867 * 180.02562 * 6 5 2 40 40 H 1.09001 * 109.46756 * 60.00290 * 6 5 2 41 41 H 1.08994 * 109.46823 * 179.97438 * 7 5 2 42 42 H 1.08996 * 109.47485 * 300.00356 * 7 5 2 43 43 H 1.09008 * 109.46913 * 60.00361 * 7 5 2 44 44 H 1.07995 * 119.95805 * 359.97438 * 10 9 8 45 45 H 1.07991 * 119.93521 * 180.26093 * 11 10 9 46 46 H 1.08005 * 119.97781 * 179.73786 * 12 11 10 47 47 H 0.96997 * 120.00419 * 33.38466 * 14 13 12 48 48 H 1.08001 * 126.45040 * 359.97438 * 18 17 15 49 49 H 1.07995 * 126.06837 * 180.02562 * 19 18 17 50 50 H 1.08999 * 109.46725 * 239.96893 * 21 20 19 51 51 H 0.96704 * 114.00011 * 180.02562 * 22 21 20 52 52 H 0.97004 * 125.68064 * 180.25004 * 27 20 19 53 53 H 1.08004 * 120.06381 * 359.97438 * 28 9 8 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 6 2.0400 1.4425 0.0000 4 6 2.0400 -0.7212 -1.2493 5 14 2.1511 -0.8783 1.5211 6 6 1.5300 -2.6347 1.5211 7 6 1.5301 0.0000 3.0423 8 8 3.7821 -0.8777 1.5214 9 6 4.3348 -1.4980 2.5969 10 6 4.6220 -0.7729 3.7447 11 6 5.1792 -1.4035 4.8413 12 6 5.4618 -2.7546 4.7945 13 6 5.1818 -3.4845 3.6457 14 7 5.4683 -4.8523 3.5982 15 6 5.8505 -5.4206 2.4374 16 8 6.0395 -4.7288 1.4542 17 6 6.0389 -6.8728 2.3592 18 6 6.4259 -7.5858 1.2441 19 6 6.4798 -8.9326 1.6157 20 6 6.1321 -9.0175 2.9222 21 6 6.0587 -10.2883 3.7289 22 8 6.9653 -10.2061 4.8305 23 14 6.5208 -11.7357 2.6509 24 1 6.4479 -12.9880 3.4457 25 1 5.5788 -11.8210 1.5062 26 1 7.9035 -11.5520 2.1414 27 7 5.8665 -7.7722 3.3870 28 6 4.6173 -2.8541 2.5458 29 1 -0.3632 0.5138 0.8899 30 1 -0.3632 0.5139 -0.8900 31 1 -0.3633 -1.0276 -0.0005 32 1 3.1301 1.4425 0.0005 33 1 1.6767 1.9563 -0.8901 34 1 1.6768 1.9563 0.8899 35 1 1.6768 -1.7490 -1.2493 36 1 1.6767 -0.2074 -2.1393 37 1 3.1300 -0.7216 -1.2491 38 1 0.4401 -2.6347 1.5210 39 1 1.8930 -3.1484 2.4113 40 1 1.8934 -3.1485 0.6311 41 1 1.8930 -0.5141 3.9322 42 1 1.8934 1.0276 3.0423 43 1 0.4400 0.0000 3.0423 44 1 4.4063 0.2846 3.7827 45 1 5.3978 -0.8377 5.7348 46 1 5.9011 -3.2440 5.6513 47 1 5.3919 -5.3920 4.4004 48 1 6.6458 -7.1801 0.2676 49 1 6.7506 -9.7587 0.9749 50 1 5.0438 -10.4231 4.1029 51 1 6.9714 -10.9918 5.3943 52 1 5.5980 -7.5517 4.2926 53 1 4.3982 -3.4191 1.6518 RHF calculation, no. of doubly occupied orbitals= 68 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=0 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 s_22_17313436_6580494.mol2 53 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Sun Mar 7 2021 09:23:11 Heat of formation + Delta-G solvation = -84.092869 kcal Electronic energy + Delta-G solvation = -32366.167308 eV Core-core repulsion = 28134.023612 eV Total energy + Delta-G solvation = -4232.143696 eV No. of doubly occupied orbitals = 68 Molecular weight (most abundant/longest-lived isotopes) = 376.178 amu Computer time = 1.16 seconds Orbital eigenvalues (eV) -42.61805 -41.38058 -39.94861 -37.92110 -37.71676 -36.86883 -35.56510 -32.41263 -31.79968 -31.03223 -30.25567 -29.28910 -29.05757 -27.88717 -27.40238 -26.96032 -24.41518 -23.55806 -22.54753 -21.57766 -21.15833 -20.52905 -19.86457 -19.07027 -18.73353 -17.31928 -17.26263 -16.96740 -16.71401 -16.34387 -16.20804 -15.97317 -15.78051 -15.34306 -15.19922 -14.88696 -14.83442 -14.75937 -14.67309 -14.38600 -14.05093 -13.89178 -13.85746 -13.60149 -13.53767 -13.43218 -13.34471 -13.21529 -12.95014 -12.92653 -12.83432 -12.69121 -12.43961 -12.22906 -12.18827 -12.13897 -12.03032 -11.68185 -11.65670 -11.37347 -11.07581 -10.69712 -10.51766 -10.11998 -10.10166 -9.54585 -9.34984 -9.05591 0.03169 0.30373 0.51562 0.92410 1.33890 1.34987 1.42385 1.55506 1.65974 1.79815 1.84200 1.97990 2.04272 2.25838 2.37533 2.86697 3.09855 3.61980 3.66191 3.97128 4.03126 4.06430 4.09824 4.11083 4.20625 4.23111 4.30438 4.37398 4.46374 4.52043 4.58878 4.68581 4.71530 4.73316 4.74961 4.80166 4.85188 4.95677 4.99085 5.02184 5.09367 5.09785 5.17824 5.21564 5.25498 5.32715 5.39210 5.41596 5.46455 5.49777 5.52097 5.58767 5.59950 5.61734 5.77748 6.13134 6.19013 6.27347 6.32592 6.96317 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.137 4.137 2 C -0.371 4.371 3 C -0.136 4.136 4 C -0.137 4.137 5 Si 1.279 2.721 6 C -0.506 4.506 7 C -0.505 4.505 8 O -0.558 6.558 9 C 0.152 3.848 10 C -0.171 4.171 11 C -0.074 4.074 12 C -0.164 4.164 13 C 0.170 3.830 14 N -0.676 5.676 15 C 0.591 3.409 16 O -0.499 6.499 17 C -0.056 4.056 18 C -0.088 4.088 19 C -0.206 4.206 20 C 0.074 3.926 21 C -0.070 4.070 22 O -0.549 6.549 23 Si 0.971 3.029 24 H -0.255 1.255 25 H -0.245 1.245 26 H -0.243 1.243 27 N -0.522 5.522 28 C -0.159 4.159 29 H 0.057 0.943 30 H 0.058 0.942 31 H 0.057 0.943 32 H 0.060 0.940 33 H 0.056 0.944 34 H 0.055 0.945 35 H 0.055 0.945 36 H 0.056 0.944 37 H 0.060 0.940 38 H 0.076 0.924 39 H 0.069 0.931 40 H 0.074 0.926 41 H 0.071 0.929 42 H 0.074 0.926 43 H 0.076 0.924 44 H 0.134 0.866 45 H 0.134 0.866 46 H 0.129 0.871 47 H 0.407 0.593 48 H 0.156 0.844 49 H 0.148 0.852 50 H 0.080 0.920 51 H 0.386 0.614 52 H 0.417 0.583 53 H 0.145 0.855 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -2.738 -4.096 5.082 7.078 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 -0.194 4.194 2 C -0.415 4.415 3 C -0.193 4.193 4 C -0.194 4.194 5 Si 1.413 2.587 6 C -0.609 4.609 7 C -0.608 4.608 8 O -0.512 6.512 9 C 0.108 3.892 10 C -0.190 4.190 11 C -0.093 4.093 12 C -0.184 4.184 13 C 0.076 3.924 14 N -0.321 5.321 15 C 0.380 3.620 16 O -0.372 6.372 17 C -0.169 4.169 18 C -0.114 4.114 19 C -0.230 4.230 20 C -0.044 4.044 21 C -0.179 4.179 22 O -0.356 6.356 23 Si 0.791 3.209 24 H -0.178 1.178 25 H -0.168 1.168 26 H -0.166 1.166 27 N -0.119 5.119 28 C -0.180 4.180 29 H 0.076 0.924 30 H 0.077 0.923 31 H 0.076 0.924 32 H 0.079 0.921 33 H 0.075 0.925 34 H 0.074 0.926 35 H 0.074 0.926 36 H 0.075 0.925 37 H 0.079 0.921 38 H 0.095 0.905 39 H 0.088 0.912 40 H 0.093 0.907 41 H 0.091 0.909 42 H 0.093 0.907 43 H 0.095 0.905 44 H 0.152 0.848 45 H 0.152 0.848 46 H 0.147 0.853 47 H 0.242 0.758 48 H 0.173 0.827 49 H 0.166 0.834 50 H 0.097 0.903 51 H 0.235 0.765 52 H 0.255 0.745 53 H 0.163 0.837 Dipole moment (debyes) X Y Z Total from point charges -2.074 -3.583 3.518 5.432 hybrid contribution -0.774 -0.338 1.496 1.718 sum -2.847 -3.921 5.014 6.973 Atomic orbital electron populations 1.21558 0.93671 1.01868 1.02283 1.25723 1.00374 1.03122 1.12329 1.21537 1.01211 0.94568 1.01987 1.21540 1.01288 0.99805 0.96734 0.77051 0.50164 0.65792 0.65673 1.26994 1.07099 1.21949 1.04816 1.26978 1.07169 1.09179 1.17453 1.83802 1.47659 1.75243 1.44471 1.17806 0.96363 0.89752 0.85287 1.21319 1.04089 1.01015 0.92596 1.20807 0.96746 0.93647 0.98092 1.20895 1.04729 0.94610 0.98210 1.17384 0.96992 0.82885 0.95140 1.43367 1.68236 1.08011 1.12462 1.17121 0.76363 0.85585 0.82913 1.90915 1.48968 1.62024 1.35335 1.20220 1.17523 0.88821 0.90329 1.21320 1.00233 0.92080 0.97818 1.20677 1.10096 0.97738 0.94494 1.19898 1.05374 0.84983 0.94147 1.24582 0.96498 1.02023 0.94836 1.86483 1.62974 1.45222 1.40904 0.85340 0.82352 0.74339 0.78881 1.17849 1.16850 1.16568 1.41880 1.52578 1.05910 1.11501 1.21220 1.02522 0.94268 0.99977 0.92422 0.92289 0.92443 0.92135 0.92533 0.92571 0.92575 0.92525 0.92085 0.90481 0.91214 0.90723 0.90942 0.90689 0.90474 0.84824 0.84774 0.85342 0.75800 0.82658 0.83414 0.90256 0.76546 0.74499 0.83724 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 -0.14 0.03 7.85 37.16 0.29 0.32 16 2 C -0.37 -0.19 0.53 -90.62 -0.05 -0.24 16 3 C -0.14 -0.08 7.85 37.16 0.29 0.21 16 4 C -0.14 -0.15 7.85 37.16 0.29 0.14 16 5 Si 1.28 0.54 8.27 -169.99 -1.41 -0.87 16 6 C -0.51 -0.41 8.31 101.05 0.84 0.43 16 7 C -0.50 0.04 8.31 101.05 0.84 0.88 16 8 O -0.56 -1.61 8.52 -19.43 -0.17 -1.78 16 9 C 0.15 0.46 4.63 -39.25 -0.18 0.28 16 10 C -0.17 -0.24 8.80 -39.39 -0.35 -0.59 16 11 C -0.07 -0.01 10.03 -39.63 -0.40 -0.41 16 12 C -0.16 -0.04 9.96 -39.36 -0.39 -0.43 16 13 C 0.17 0.33 6.27 -83.74 -0.53 -0.19 16 14 N -0.68 -0.29 5.33 -11.07 -0.06 -0.34 16 15 C 0.59 1.77 7.52 -12.87 -0.10 1.68 16 16 O -0.50 -3.26 14.57 5.19 0.08 -3.19 16 17 C -0.06 -0.10 7.05 -81.98 -0.58 -0.68 16 18 C -0.09 -0.19 10.65 -39.11 -0.42 -0.61 16 19 C -0.21 -0.20 9.32 -39.98 -0.37 -0.57 16 20 C 0.07 0.01 6.51 -81.94 -0.53 -0.53 16 21 C -0.07 0.16 3.07 36.00 0.11 0.27 16 22 O -0.55 1.13 12.86 -35.23 -0.45 0.68 16 23 Si 0.97 -2.16 25.82 -169.99 -4.39 -6.54 16 24 H -0.25 0.56 7.11 56.52 0.40 0.96 16 25 H -0.25 0.35 7.11 56.52 0.40 0.75 16 26 H -0.24 0.10 7.11 56.52 0.40 0.51 16 27 N -0.52 0.29 6.00 -5.69 -0.03 0.25 16 28 C -0.16 -0.57 7.38 -39.24 -0.29 -0.86 16 29 H 0.06 -0.06 7.79 -51.93 -0.40 -0.46 16 30 H 0.06 0.00 8.14 -51.93 -0.42 -0.42 16 31 H 0.06 -0.05 7.79 -51.93 -0.40 -0.45 16 32 H 0.06 0.06 7.97 -51.92 -0.41 -0.35 16 33 H 0.06 0.04 8.14 -51.92 -0.42 -0.39 16 34 H 0.06 -0.02 7.79 -51.93 -0.40 -0.42 16 35 H 0.06 0.03 7.79 -51.92 -0.40 -0.37 16 36 H 0.06 0.05 8.14 -51.93 -0.42 -0.37 16 37 H 0.06 0.10 7.96 -51.93 -0.41 -0.31 16 38 H 0.08 -0.01 7.79 -51.93 -0.40 -0.42 16 39 H 0.07 0.08 7.38 -51.93 -0.38 -0.31 16 40 H 0.07 0.09 7.79 -51.93 -0.40 -0.31 16 41 H 0.07 0.00 7.39 -51.93 -0.38 -0.38 16 42 H 0.07 -0.02 7.79 -51.93 -0.40 -0.43 16 43 H 0.08 -0.06 7.79 -51.92 -0.40 -0.46 16 44 H 0.13 -0.01 8.06 -52.49 -0.42 -0.43 16 45 H 0.13 -0.31 8.06 -52.49 -0.42 -0.73 16 46 H 0.13 -0.28 8.06 -52.48 -0.42 -0.70 16 47 H 0.41 -1.24 7.96 -40.82 -0.32 -1.57 16 48 H 0.16 0.25 8.06 -52.49 -0.42 -0.17 16 49 H 0.15 -0.09 6.17 -52.49 -0.32 -0.42 16 50 H 0.08 -0.35 7.96 -51.93 -0.41 -0.76 16 51 H 0.39 -2.45 8.74 45.56 0.40 -2.05 16 52 H 0.42 -1.41 8.20 -40.82 -0.33 -1.74 16 53 H 0.15 0.69 6.42 -52.48 -0.34 0.36 16 LS Contribution 429.71 15.07 6.48 6.48 Total: 0.00 -8.66 429.71 -9.39 -18.05 By element: Atomic # 1 Polarization: -3.93 SS G_CDS: -7.92 Total: -11.85 kcal Atomic # 6 Polarization: 0.63 SS G_CDS: -1.51 Total: -0.89 kcal Atomic # 7 Polarization: 0.00 SS G_CDS: -0.09 Total: -0.09 kcal Atomic # 8 Polarization: -3.74 SS G_CDS: -0.54 Total: -4.28 kcal Atomic # 14 Polarization: -1.62 SS G_CDS: -5.80 Total: -7.42 kcal Total LS contribution 6.48 Total: 6.48 kcal Total: -8.66 -9.39 -18.05 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. s_22_17313436_6580494.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 -66.041 kcal (2) G-P(sol) polarization free energy of solvation -8.660 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -74.701 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.392 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -18.052 kcal (6) G-S(sol) free energy of system = (1) + (5) -84.093 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.16 seconds