Wall clock time and date at job start Sat Apr 11 2020 06:10:10 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 O 1.42901 * 109.46889 * 2 1 4 4 C 1.42896 * 114.00326 * 184.74099 * 3 2 1 5 5 H 1.09004 * 109.46859 * 14.26129 * 4 3 2 6 6 C 1.50698 * 109.47496 * 134.26571 * 4 3 2 7 7 O 1.21279 * 119.99594 * 15.73394 * 6 4 3 8 8 N 1.34776 * 120.00167 * 195.73349 * 6 4 3 9 9 C 1.46923 * 120.63095 * 356.24281 * 8 6 4 10 10 C 1.53191 * 108.77617 * 233.63222 * 9 8 6 11 11 C 1.53042 * 109.33666 * 305.37735 * 10 9 8 12 12 C 1.53036 * 109.53829 * 61.31998 * 11 10 9 13 13 H 1.09004 * 109.49791 * 58.64411 * 12 11 10 14 14 N 1.46496 * 109.50038 * 178.71273 * 12 11 10 15 15 C 1.36932 * 120.00073 * 274.93461 * 14 12 11 16 16 H 1.07998 * 119.99938 * 359.97438 * 15 14 12 17 17 C 1.38810 * 120.00161 * 179.97438 * 15 14 12 18 18 N 1.31617 * 119.99971 * 0.02562 * 17 15 14 19 19 Si 1.86800 * 120.00310 * 180.02562 * 17 15 14 20 20 H 1.48503 * 109.47245 * 270.00663 * 19 17 15 21 21 H 1.48505 * 109.47062 * 30.00043 * 19 17 15 22 22 H 1.48497 * 109.47394 * 150.00161 * 19 17 15 23 23 C 1.46922 * 120.63003 * 176.26481 * 8 6 4 24 24 C 1.53007 * 109.47218 * 254.26856 * 4 3 2 25 25 C 1.53176 * 109.54258 * 64.89831 * 24 4 3 26 26 C 1.53106 * 109.15222 * 183.24311 * 25 24 4 27 27 O 1.42898 * 109.49122 * 57.47528 * 26 25 24 28 28 C 1.42904 * 114.09666 * 298.88947 * 27 26 25 29 29 C 1.53096 * 109.41759 * 61.15479 * 28 27 26 30 30 H 1.08998 * 109.46758 * 179.97438 * 1 2 3 31 31 H 1.08995 * 109.47266 * 299.99532 * 1 2 3 32 32 H 1.09003 * 109.47111 * 60.00217 * 1 2 3 33 33 H 1.09001 * 109.47639 * 240.00235 * 2 1 3 34 34 H 1.09003 * 109.47111 * 119.99783 * 2 1 3 35 35 H 1.09006 * 109.58986 * 353.41897 * 9 8 6 36 36 H 1.09001 * 109.58441 * 113.84201 * 9 8 6 37 37 H 1.08991 * 109.49887 * 65.32023 * 10 9 8 38 38 H 1.09002 * 109.49451 * 185.38057 * 10 9 8 39 39 H 1.09001 * 109.43627 * 301.31360 * 11 10 9 40 40 H 1.08999 * 109.48469 * 181.35496 * 11 10 9 41 41 H 0.96998 * 120.00140 * 94.93414 * 14 12 11 42 42 H 0.96999 * 120.00529 * 179.97438 * 18 17 15 43 43 H 1.09005 * 109.58665 * 6.58137 * 23 8 6 44 44 H 1.09006 * 109.58638 * 246.15743 * 23 8 6 45 45 H 1.08997 * 109.54216 * 185.07570 * 24 4 3 46 46 H 1.08999 * 109.52584 * 303.05347 * 25 24 4 47 47 H 1.08996 * 109.52796 * 63.25079 * 25 24 4 48 48 H 1.08997 * 109.40730 * 297.48917 * 26 25 24 49 49 H 1.09008 * 109.49063 * 177.50988 * 26 25 24 50 50 H 1.08996 * 109.47706 * 301.17250 * 28 27 26 51 51 H 1.08996 * 109.49164 * 181.14594 * 28 27 26 52 52 H 1.08994 * 109.52167 * 182.48548 * 29 28 27 53 53 H 1.08997 * 109.52085 * 62.29450 * 29 28 27 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 2.0063 1.3473 0.0000 4 6 3.4266 1.4618 -0.1079 5 1 3.8454 0.5054 -0.4211 6 6 3.7696 2.5181 -1.1264 7 8 2.9227 3.3056 -1.4919 8 7 5.0173 2.5878 -1.6311 9 6 6.0749 1.6946 -1.1387 10 6 7.2741 2.5431 -0.7041 11 6 7.7029 3.4457 -1.8633 12 6 6.5533 4.3861 -2.2320 13 1 6.2795 4.9843 -1.3629 14 7 6.9751 5.2705 -3.3211 15 6 7.6542 6.4260 -3.0407 16 1 7.8785 6.6856 -2.0167 17 6 8.0544 7.2638 -4.0727 18 7 7.7806 6.9476 -5.3206 19 14 8.9814 8.8398 -3.6903 20 1 8.0133 9.9493 -3.4978 21 1 9.7778 8.6571 -2.4502 22 1 9.8901 9.1658 -4.8186 23 6 5.3459 3.5586 -2.6839 24 6 4.0113 1.8541 1.2505 25 6 3.7697 0.7255 2.2576 26 6 4.2855 1.1599 3.6322 27 8 3.6321 2.3680 4.0266 28 6 3.8629 3.4702 3.1468 29 6 3.3282 3.1296 1.7532 30 1 -0.3633 -1.0277 -0.0005 31 1 -0.3633 0.5137 0.8900 32 1 -0.3633 0.5138 -0.8900 33 1 1.8934 -0.5138 -0.8900 34 1 1.8934 -0.5138 0.8900 35 1 5.7039 1.1233 -0.2877 36 1 6.3780 1.0139 -1.9343 37 1 6.9938 3.1581 0.1509 38 1 8.1008 1.8892 -0.4265 39 1 7.9600 2.8308 -2.7258 40 1 8.5711 4.0332 -1.5647 41 1 6.7733 5.0375 -4.2408 42 1 8.0598 7.5332 -6.0418 43 1 4.4938 4.2172 -2.8524 44 1 5.5895 3.0298 -3.6054 45 1 5.0823 2.0296 1.1495 46 1 2.7020 0.5156 2.3203 47 1 4.2997 -0.1706 1.9347 48 1 5.3609 1.3290 3.5786 49 1 4.0764 0.3783 4.3627 50 1 4.9328 3.6695 3.0868 51 1 3.3494 4.3531 3.5274 52 1 3.5427 3.9513 1.0700 53 1 2.2513 2.9697 1.8054 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 ZINC001208807814.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 06:10:10 Heat of formation + Delta-G solvation = -121.806833 kcal Electronic energy + Delta-G solvation = -32213.396720 eV Core-core repulsion = 28085.152521 eV Total energy + Delta-G solvation = -4128.244199 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.83 seconds Orbital eigenvalues (eV) -40.83872 -39.25152 -38.10965 -37.02432 -34.77532 -34.12427 -32.21626 -31.55157 -31.29684 -31.19885 -29.00621 -27.60123 -25.32579 -24.11136 -23.95129 -23.26587 -22.78474 -22.09959 -20.42116 -20.24254 -18.94885 -17.34309 -17.22623 -16.85517 -16.73619 -16.16476 -15.76507 -15.52891 -15.07538 -14.96052 -14.65477 -14.42298 -14.18737 -14.05603 -13.98112 -13.55390 -13.51933 -13.08014 -12.95746 -12.75008 -12.71046 -12.47575 -12.40142 -12.22210 -11.96966 -11.67838 -11.45454 -11.23189 -11.09917 -11.01544 -10.92869 -10.91913 -10.69456 -10.49154 -10.42508 -10.39532 -10.14894 -10.08848 -9.80014 -9.70901 -9.21548 -8.93430 -8.43683 -7.01118 -5.79516 -3.09278 2.65794 2.77574 3.42422 3.47467 3.48902 3.61336 3.67482 4.21983 4.32368 4.49173 4.56676 4.65160 4.70713 4.79298 4.80968 4.83742 4.99244 5.01070 5.06596 5.09932 5.16331 5.23518 5.27205 5.33393 5.41366 5.42477 5.47746 5.48139 5.52813 5.62198 5.65843 5.67726 5.71222 5.76386 5.81438 5.89778 5.96187 5.98162 6.11826 6.19094 6.24060 6.34491 6.50102 6.63088 6.81415 6.92824 6.98676 7.00877 7.52301 7.67374 8.29142 8.38507 9.49611 10.04627 10.39601 11.42949 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.014314 B = 0.002971 C = 0.002749 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1955.668289 B = 9421.890526 C =10182.584890 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.151 4.151 2 C 0.051 3.949 3 O -0.349 6.349 4 C 0.083 3.917 5 H 0.083 0.917 6 C 0.509 3.491 7 O -0.517 6.517 8 N -0.604 5.604 9 C 0.102 3.898 10 C -0.133 4.133 11 C -0.137 4.137 12 C 0.169 3.831 13 H 0.050 0.950 14 N -0.721 5.721 15 C -0.239 4.239 16 H 0.070 0.930 17 C -0.012 4.012 18 N -0.932 5.932 19 Si 0.907 3.093 20 H -0.289 1.289 21 H -0.282 1.282 22 H -0.291 1.291 23 C 0.107 3.893 24 C -0.103 4.103 25 C -0.153 4.153 26 C 0.063 3.937 27 O -0.383 6.383 28 C 0.061 3.939 29 C -0.145 4.145 30 H 0.070 0.930 31 H 0.064 0.936 32 H 0.065 0.935 33 H 0.047 0.953 34 H 0.051 0.949 35 H 0.078 0.922 36 H 0.069 0.931 37 H 0.063 0.937 38 H 0.069 0.931 39 H 0.057 0.943 40 H 0.066 0.934 41 H 0.384 0.616 42 H 0.256 0.744 43 H 0.093 0.907 44 H 0.065 0.935 45 H 0.089 0.911 46 H 0.079 0.921 47 H 0.072 0.928 48 H 0.050 0.950 49 H 0.093 0.907 50 H 0.050 0.950 51 H 0.095 0.905 52 H 0.077 0.923 53 H 0.084 0.916 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -7.896 -19.630 16.009 26.532 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 -0.208 4.208 2 C -0.026 4.026 3 O -0.267 6.267 4 C 0.021 3.979 5 H 0.101 0.899 6 C 0.295 3.705 7 O -0.392 6.392 8 N -0.340 5.340 9 C -0.021 4.021 10 C -0.172 4.172 11 C -0.177 4.177 12 C 0.058 3.942 13 H 0.068 0.932 14 N -0.362 5.362 15 C -0.370 4.370 16 H 0.088 0.912 17 C -0.208 4.208 18 N -0.580 5.580 19 Si 0.738 3.262 20 H -0.216 1.216 21 H -0.208 1.208 22 H -0.218 1.218 23 C -0.016 4.016 24 C -0.122 4.122 25 C -0.190 4.190 26 C -0.014 4.014 27 O -0.302 6.302 28 C -0.015 4.015 29 C -0.183 4.183 30 H 0.088 0.912 31 H 0.083 0.917 32 H 0.084 0.916 33 H 0.066 0.934 34 H 0.069 0.931 35 H 0.096 0.904 36 H 0.088 0.912 37 H 0.081 0.919 38 H 0.087 0.913 39 H 0.076 0.924 40 H 0.085 0.915 41 H 0.218 0.782 42 H 0.066 0.934 43 H 0.111 0.889 44 H 0.084 0.916 45 H 0.107 0.893 46 H 0.098 0.902 47 H 0.091 0.909 48 H 0.068 0.932 49 H 0.111 0.889 50 H 0.068 0.932 51 H 0.113 0.887 52 H 0.095 0.905 53 H 0.103 0.897 Dipole moment (debyes) X Y Z Total from point charges -8.535 -18.858 16.034 26.183 hybrid contribution 1.021 0.455 -0.586 1.262 sum -7.514 -18.403 15.448 25.175 Atomic orbital electron populations 1.21723 0.93452 1.02104 1.03504 1.22708 0.96066 0.83819 0.99963 1.88061 1.18642 1.25975 1.94014 1.21944 0.83814 0.97949 0.94195 0.89904 1.20474 0.82220 0.85732 0.82110 1.90722 1.47488 1.41169 1.59808 1.48093 1.08837 1.37487 1.39569 1.21886 0.88636 0.92484 0.99127 1.21935 0.96719 0.98764 0.99749 1.22280 1.01032 0.97938 0.96488 1.20463 0.90547 0.90452 0.92711 0.93232 1.42305 1.67331 1.22652 1.03896 1.19192 1.27883 0.97231 0.92732 0.91175 1.24746 1.01659 0.99125 0.95245 1.69657 1.51693 1.38582 0.98021 0.86193 0.79345 0.83668 0.76987 1.21641 1.20763 1.21759 1.22016 0.99927 0.90933 0.88699 1.21688 1.00518 0.96775 0.93182 1.22323 1.03165 0.97821 0.95710 1.22521 0.96084 0.87366 0.95436 1.87928 1.73244 1.19256 1.49762 1.22623 0.99958 0.89263 0.89692 1.22116 1.02220 0.97069 0.96846 0.91156 0.91706 0.91615 0.93426 0.93051 0.90412 0.91250 0.91874 0.91265 0.92438 0.91489 0.78192 0.93439 0.88862 0.91646 0.89316 0.90205 0.90930 0.93150 0.88926 0.93155 0.88680 0.90471 0.89732 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 -0.15 -1.21 10.28 37.16 0.38 -0.83 16 2 C 0.05 0.45 6.07 37.16 0.23 0.67 16 3 O -0.35 -4.34 8.29 -54.63 -0.45 -4.79 16 4 C 0.08 0.93 1.50 -27.88 -0.04 0.89 16 5 H 0.08 0.73 6.71 -51.93 -0.35 0.38 16 6 C 0.51 7.77 6.06 -10.99 -0.07 7.71 16 7 O -0.52 -10.26 15.99 -13.84 -0.22 -10.48 16 8 N -0.60 -8.66 2.97 -172.77 -0.51 -9.18 16 9 C 0.10 1.08 5.60 -3.71 -0.02 1.06 16 10 C -0.13 -1.57 6.08 -26.61 -0.16 -1.73 16 11 C -0.14 -2.24 5.47 -26.69 -0.15 -2.38 16 12 C 0.17 3.30 2.92 -67.81 -0.20 3.11 16 13 H 0.05 1.04 8.08 -51.93 -0.42 0.62 16 14 N -0.72 -17.80 5.12 -53.31 -0.27 -18.08 16 15 C -0.24 -6.57 9.93 -15.06 -0.15 -6.72 16 16 H 0.07 1.88 7.83 -52.49 -0.41 1.47 16 17 C -0.01 -0.33 5.50 -17.43 -0.10 -0.43 16 18 N -0.93 -27.97 13.06 55.49 0.72 -27.25 16 19 Si 0.91 22.33 29.55 -169.99 -5.02 17.31 16 20 H -0.29 -7.14 7.11 56.52 0.40 -6.74 16 21 H -0.28 -6.73 7.11 56.52 0.40 -6.33 16 22 H -0.29 -7.22 7.11 56.52 0.40 -6.82 16 23 C 0.11 1.88 5.91 -3.71 -0.02 1.86 16 24 C -0.10 -1.01 1.68 -90.43 -0.15 -1.16 16 25 C -0.15 -1.16 4.86 -26.59 -0.13 -1.29 16 26 C 0.06 0.50 6.84 37.21 0.25 0.75 16 27 O -0.38 -4.16 10.77 -35.23 -0.38 -4.54 16 28 C 0.06 0.63 6.84 37.21 0.25 0.89 16 29 C -0.14 -1.69 5.03 -26.59 -0.13 -1.83 16 30 H 0.07 0.41 8.14 -51.93 -0.42 -0.02 16 31 H 0.06 0.53 8.14 -51.93 -0.42 0.11 16 32 H 0.06 0.60 8.14 -51.93 -0.42 0.18 16 33 H 0.05 0.39 8.05 -51.93 -0.42 -0.03 16 34 H 0.05 0.36 6.35 -51.93 -0.33 0.03 16 35 H 0.08 0.63 4.48 -51.93 -0.23 0.39 16 36 H 0.07 0.68 8.14 -51.93 -0.42 0.26 16 37 H 0.06 0.76 8.14 -51.93 -0.42 0.34 16 38 H 0.07 0.67 8.14 -51.93 -0.42 0.25 16 39 H 0.06 0.95 8.14 -51.93 -0.42 0.53 16 40 H 0.07 1.22 8.14 -51.93 -0.42 0.79 16 41 H 0.38 10.08 7.80 -40.82 -0.32 9.76 16 42 H 0.26 7.45 8.31 -40.82 -0.34 7.11 16 43 H 0.09 1.89 7.00 -51.93 -0.36 1.52 16 44 H 0.07 1.12 8.14 -51.93 -0.42 0.69 16 45 H 0.09 0.82 6.19 -51.93 -0.32 0.50 16 46 H 0.08 0.67 6.24 -51.93 -0.32 0.35 16 47 H 0.07 0.40 8.14 -51.93 -0.42 -0.02 16 48 H 0.05 0.36 8.14 -51.93 -0.42 -0.06 16 49 H 0.09 0.58 8.14 -51.92 -0.42 0.16 16 50 H 0.05 0.49 8.14 -51.93 -0.42 0.07 16 51 H 0.10 0.92 8.14 -51.93 -0.42 0.50 16 52 H 0.08 1.07 7.50 -51.93 -0.39 0.68 16 53 H 0.08 1.10 7.46 -51.93 -0.39 0.71 16 LS Contribution 403.64 15.07 6.08 6.08 Total: -1.00 -33.39 403.64 -9.57 -42.96 By element: Atomic # 1 Polarization: 16.70 SS G_CDS: -9.32 Total: 7.38 kcal Atomic # 6 Polarization: 0.78 SS G_CDS: -0.20 Total: 0.58 kcal Atomic # 7 Polarization: -54.44 SS G_CDS: -0.06 Total: -54.50 kcal Atomic # 8 Polarization: -18.76 SS G_CDS: -1.05 Total: -19.81 kcal Atomic # 14 Polarization: 22.33 SS G_CDS: -5.02 Total: 17.31 kcal Total LS contribution 6.08 Total: 6.08 kcal Total: -33.39 -9.57 -42.96 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. ZINC001208807814.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 -78.846 kcal (2) G-P(sol) polarization free energy of solvation -33.386 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -112.233 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.574 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -42.961 kcal (6) G-S(sol) free energy of system = (1) + (5) -121.807 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.83 seconds