Wall clock time and date at job start Sat Apr 11 2020 06:11:19 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 O 1.42904 * 1 3 3 C 1.42901 * 113.99754 * 2 1 4 4 C 1.53000 * 109.47359 * 179.97438 * 3 2 1 5 5 C 1.52996 * 109.45848 * 300.00079 * 4 3 2 6 6 N 1.46504 * 109.47548 * 59.99743 * 5 4 3 7 7 C 1.34776 * 120.00198 * 179.72785 * 6 5 4 8 8 O 1.21362 * 119.99801 * 0.26841 * 7 6 5 9 9 C 1.49084 * 119.99792 * 180.27457 * 7 6 5 10 10 O 1.20785 * 120.00538 * 359.97438 * 9 7 6 11 11 C 1.50701 * 119.99985 * 179.97438 * 9 7 6 12 12 C 1.52996 * 109.47306 * 180.02562 * 11 9 7 13 13 C 1.53004 * 109.47150 * 300.00164 * 11 9 7 14 14 C 1.53001 * 109.46898 * 59.99738 * 11 9 7 15 15 C 1.53040 * 109.45824 * 59.96866 * 4 3 2 16 16 C 1.53167 * 109.32900 * 181.38916 * 15 4 3 17 17 N 1.46929 * 108.76501 * 305.35408 * 16 15 4 18 18 C 1.36934 * 120.63043 * 233.58239 * 17 16 15 19 19 H 1.08002 * 119.99659 * 27.70974 * 18 17 16 20 20 C 1.38809 * 119.99934 * 207.69830 * 18 17 16 21 21 N 1.31617 * 120.00086 * 17.35939 * 20 18 17 22 22 Si 1.86803 * 119.99893 * 197.35774 * 20 18 17 23 23 H 1.48506 * 109.47081 * 60.00396 * 22 20 18 24 24 H 1.48500 * 109.47221 * 180.02562 * 22 20 18 25 25 H 1.48496 * 109.47351 * 300.00500 * 22 20 18 26 26 C 1.46931 * 118.73551 * 53.61187 * 17 16 15 27 27 C 1.53037 * 109.46265 * 180.02562 * 4 3 2 28 28 H 1.09002 * 109.46814 * 300.00018 * 1 2 3 29 29 H 1.08995 * 109.47168 * 60.00166 * 1 2 3 30 30 H 1.09001 * 109.46908 * 180.02562 * 1 2 3 31 31 H 1.09001 * 109.47328 * 59.99916 * 3 2 1 32 32 H 1.09001 * 109.46870 * 300.00042 * 3 2 1 33 33 H 1.08996 * 109.47283 * 299.99625 * 5 4 3 34 34 H 1.09000 * 109.47403 * 179.97438 * 5 4 3 35 35 H 0.97005 * 119.99683 * 359.97438 * 6 5 4 36 36 H 1.08996 * 109.47477 * 60.00043 * 12 11 9 37 37 H 1.09004 * 109.47066 * 180.02562 * 12 11 9 38 38 H 1.09000 * 109.47091 * 299.99789 * 12 11 9 39 39 H 1.08997 * 109.47227 * 59.99500 * 13 11 9 40 40 H 1.09004 * 109.47018 * 179.97438 * 13 11 9 41 41 H 1.08995 * 109.46810 * 300.00032 * 13 11 9 42 42 H 1.09000 * 109.47183 * 60.00404 * 14 11 9 43 43 H 1.09004 * 109.47270 * 180.02562 * 14 11 9 44 44 H 1.09003 * 109.47255 * 299.99854 * 14 11 9 45 45 H 1.09002 * 109.49951 * 301.33158 * 15 4 3 46 46 H 1.09007 * 109.49819 * 61.42295 * 15 4 3 47 47 H 1.09005 * 109.58883 * 185.57331 * 16 15 4 48 48 H 1.08995 * 109.70834 * 65.21283 * 16 15 4 49 49 H 0.97003 * 119.99764 * 179.97438 * 21 20 18 50 50 H 1.09004 * 109.58189 * 186.60269 * 26 17 16 51 51 H 1.08998 * 109.70527 * 66.24764 * 26 17 16 52 52 H 1.09003 * 109.49644 * 298.57738 * 27 4 3 53 53 H 1.08998 * 109.49744 * 58.64506 * 27 4 3 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 8 1.4290 0.0000 0.0000 3 6 2.0102 1.3055 0.0000 4 6 3.5355 1.1848 0.0006 5 6 3.9861 0.4258 1.2503 6 7 3.3902 -0.9126 1.2503 7 6 3.6530 -1.7673 2.2587 8 8 4.3795 -1.4265 3.1692 9 6 3.0515 -3.1314 2.2555 10 8 2.3282 -3.4704 1.3495 11 6 3.3458 -4.0873 3.3827 12 6 2.6112 -5.4068 3.1374 13 6 4.8520 -4.3477 3.4504 14 6 2.8736 -3.4781 4.7044 15 6 3.9872 0.4244 -1.2483 16 6 5.5114 0.2751 -1.2272 17 7 6.1149 1.6067 -1.0806 18 6 7.0612 2.0454 -1.9678 19 1 7.0650 1.6726 -2.9814 20 6 8.0154 2.9693 -1.5643 21 7 8.2373 3.1692 -0.2825 22 14 8.9846 3.9289 -2.8408 23 1 8.0496 4.7216 -3.6791 24 1 9.9337 4.8436 -2.1569 25 1 9.7411 2.9842 -3.7011 26 6 5.6840 2.4583 0.0365 27 6 4.1576 2.5830 0.0013 28 1 -0.3633 0.5139 0.8900 29 1 -0.3633 0.5138 -0.8900 30 1 -0.3633 -1.0277 0.0005 31 1 1.6886 1.8464 0.8900 32 1 1.6885 1.8464 -0.8900 33 1 3.6641 0.9669 2.1399 34 1 5.0727 0.3393 1.2507 35 1 2.8093 -1.1848 0.5227 36 1 2.9479 -5.8406 2.1959 37 1 2.8237 -6.0980 3.9530 38 1 1.5381 -5.2216 3.0889 39 1 5.3757 -3.4079 3.6249 40 1 5.0649 -5.0388 4.2661 41 1 5.1883 -4.7816 2.5089 42 1 1.8006 -3.2926 4.6562 43 1 3.0869 -4.1693 5.5198 44 1 3.3974 -2.5383 4.8789 45 1 3.5253 -0.5628 -1.2602 46 1 3.6880 0.9772 -2.1389 47 1 5.8472 -0.1775 -2.1603 48 1 5.8075 -0.3547 -0.3884 49 1 8.9043 3.8146 -0.0006 50 1 6.1337 3.4463 -0.0627 51 1 5.9923 2.0097 0.9808 52 1 3.8568 3.1155 -0.9011 53 1 3.8166 3.1325 0.8787 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 ZINC001162176214.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 06:11:19 Heat of formation + Delta-G solvation = -98.778871 kcal Electronic energy + Delta-G solvation = -32446.379819 eV Core-core repulsion = 28319.134187 eV Total energy + Delta-G solvation = -4127.245632 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 1.21 seconds Orbital eigenvalues (eV) -40.84609 -39.57254 -38.11111 -37.10679 -36.06558 -34.49360 -32.95116 -31.09029 -29.86606 -27.77987 -27.65120 -27.42962 -26.91973 -25.91789 -24.69881 -23.88082 -22.29888 -21.11484 -20.88857 -19.34062 -18.14736 -17.41358 -16.53727 -16.30819 -16.17259 -15.93325 -15.60881 -15.40272 -15.06291 -14.74040 -14.42351 -14.34938 -13.82471 -13.73942 -13.68451 -13.34572 -13.01227 -12.98035 -12.64024 -12.57561 -12.37472 -12.32474 -12.27693 -11.89970 -11.80488 -11.60799 -11.50332 -11.43008 -11.28321 -11.12169 -10.96248 -10.80984 -10.71145 -10.47113 -10.27198 -10.24408 -9.91863 -9.73304 -9.52522 -9.49146 -9.14214 -8.75595 -8.43114 -6.66216 -5.78418 -3.20193 1.07075 2.91336 3.17350 3.38719 3.44747 3.45692 3.68107 4.30713 4.50060 4.58571 4.71163 4.75340 4.90376 5.03878 5.17144 5.24040 5.26695 5.32575 5.39937 5.40057 5.48174 5.52276 5.56782 5.58445 5.61137 5.64411 5.67150 5.70413 5.74873 5.79845 5.92429 5.98565 6.07792 6.12636 6.17765 6.19836 6.29736 6.46239 6.52895 6.55849 6.65679 6.69540 6.80702 6.90277 6.97639 7.13225 7.31705 7.64130 7.75395 7.79915 8.29249 8.45119 9.21576 9.84952 10.41638 11.30083 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.013729 B = 0.003314 C = 0.002914 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2039.030415 B = 8447.960756 C = 9606.180085 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.035 3.965 2 O -0.392 6.392 3 C 0.069 3.931 4 C -0.058 4.058 5 C 0.126 3.874 6 N -0.681 5.681 7 C 0.465 3.535 8 O -0.516 6.516 9 C 0.361 3.639 10 O -0.421 6.421 11 C -0.096 4.096 12 C -0.135 4.135 13 C -0.144 4.144 14 C -0.142 4.142 15 C -0.119 4.119 16 C 0.143 3.857 17 N -0.590 5.590 18 C -0.253 4.253 19 H 0.065 0.935 20 C 0.003 3.997 21 N -0.902 5.902 22 Si 0.902 3.098 23 H -0.284 1.284 24 H -0.291 1.291 25 H -0.283 1.283 26 C 0.170 3.830 27 C -0.127 4.127 28 H 0.037 0.963 29 H 0.040 0.960 30 H 0.083 0.917 31 H 0.048 0.952 32 H 0.052 0.948 33 H 0.063 0.937 34 H 0.090 0.910 35 H 0.417 0.583 36 H 0.061 0.939 37 H 0.065 0.935 38 H 0.059 0.941 39 H 0.082 0.918 40 H 0.067 0.933 41 H 0.056 0.944 42 H 0.053 0.947 43 H 0.067 0.933 44 H 0.081 0.919 45 H 0.056 0.944 46 H 0.061 0.939 47 H 0.053 0.947 48 H 0.019 0.981 49 H 0.254 0.746 50 H 0.090 0.910 51 H 0.023 0.977 52 H 0.064 0.936 53 H 0.054 0.946 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -15.639 -10.726 6.667 20.101 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 -0.062 4.062 2 O -0.311 6.311 3 C -0.007 4.007 4 C -0.059 4.059 5 C 0.003 3.997 6 N -0.339 5.339 7 C 0.247 3.753 8 O -0.394 6.394 9 C 0.230 3.770 10 O -0.290 6.290 11 C -0.097 4.097 12 C -0.192 4.192 13 C -0.202 4.202 14 C -0.200 4.200 15 C -0.159 4.159 16 C 0.017 3.983 17 N -0.313 5.313 18 C -0.383 4.383 19 H 0.082 0.918 20 C -0.195 4.195 21 N -0.546 5.546 22 Si 0.732 3.268 23 H -0.211 1.211 24 H -0.217 1.217 25 H -0.209 1.209 26 C 0.044 3.956 27 C -0.167 4.167 28 H 0.056 0.944 29 H 0.059 0.941 30 H 0.102 0.898 31 H 0.066 0.934 32 H 0.071 0.929 33 H 0.082 0.918 34 H 0.108 0.892 35 H 0.260 0.740 36 H 0.080 0.920 37 H 0.084 0.916 38 H 0.079 0.921 39 H 0.101 0.899 40 H 0.086 0.914 41 H 0.075 0.925 42 H 0.072 0.928 43 H 0.086 0.914 44 H 0.100 0.900 45 H 0.075 0.925 46 H 0.080 0.920 47 H 0.071 0.929 48 H 0.037 0.963 49 H 0.064 0.936 50 H 0.108 0.892 51 H 0.041 0.959 52 H 0.082 0.918 53 H 0.072 0.928 Dipole moment (debyes) X Y Z Total from point charges -15.284 -10.712 6.847 19.880 hybrid contribution -0.026 0.736 -0.955 1.206 sum -15.311 -9.975 5.892 19.200 Atomic orbital electron populations 1.22696 0.81228 1.02513 0.99740 1.87561 1.19493 1.28738 1.95336 1.22812 0.93819 0.84008 1.00106 1.20826 0.91562 0.97861 0.95631 1.21638 0.99718 0.81156 0.97174 1.46361 1.48333 1.14452 1.24775 1.20794 0.83438 0.87191 0.83829 1.90706 1.36228 1.77186 1.35289 1.25016 0.77609 0.88215 0.86155 1.90389 1.27470 1.76994 1.34130 1.20948 0.98844 0.94962 0.94958 1.21774 1.00300 0.94958 1.02199 1.21912 0.92110 1.03852 1.02283 1.21895 1.01114 1.02621 0.94334 1.22006 0.99063 0.98789 0.95999 1.20940 0.90123 0.88475 0.98778 1.44026 1.44805 1.11156 1.31314 1.19137 1.05488 1.22498 0.91171 0.91757 1.25021 0.96927 1.01901 0.95700 1.70018 1.34814 1.36507 1.13251 0.86385 0.79514 0.80006 0.80942 1.21102 1.21658 1.20937 1.20814 0.87210 0.97823 0.89780 1.22203 1.00988 0.92576 1.00957 0.94399 0.94112 0.89847 0.93402 0.92941 0.91834 0.89156 0.74036 0.92000 0.91626 0.92150 0.89869 0.91369 0.92516 0.92766 0.91375 0.89981 0.92540 0.91984 0.92866 0.96297 0.93559 0.89164 0.95863 0.91772 0.92772 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 17. 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 0.03 0.34 11.01 101.05 1.11 1.45 16 2 O -0.39 -5.04 6.73 -35.23 -0.24 -5.28 16 3 C 0.07 0.90 4.80 37.16 0.18 1.08 16 4 C -0.06 -0.92 0.51 -154.47 -0.08 -1.00 16 5 C 0.13 2.09 3.81 -4.04 -0.02 2.08 16 6 N -0.68 -10.56 4.62 -60.86 -0.28 -10.84 16 7 C 0.47 7.24 7.55 -11.76 -0.09 7.15 16 8 O -0.52 -8.97 13.39 5.49 0.07 -8.90 16 9 C 0.36 4.86 6.03 -29.81 -0.18 4.68 16 10 O -0.42 -6.10 16.09 5.98 0.10 -6.00 16 11 C -0.10 -1.04 0.76 -155.66 -0.12 -1.16 16 12 C -0.14 -1.24 7.76 37.16 0.29 -0.95 16 13 C -0.14 -1.53 8.29 37.16 0.31 -1.23 16 14 C -0.14 -1.40 8.29 37.16 0.31 -1.10 16 15 C -0.12 -2.03 4.59 -26.62 -0.12 -2.16 16 16 C 0.14 2.98 6.04 -3.72 -0.02 2.95 16 17 N -0.59 -14.36 2.99 -172.33 -0.52 -14.87 16 18 C -0.25 -6.85 9.58 -15.06 -0.14 -6.99 16 19 H 0.06 1.72 7.89 -52.49 -0.41 1.30 16 20 C 0.00 0.09 4.91 -17.43 -0.09 0.00 16 21 N -0.90 -25.80 11.19 55.49 0.62 -25.18 16 22 Si 0.90 21.50 29.59 -169.99 -5.03 16.47 16 23 H -0.28 -6.70 7.11 56.52 0.40 -6.30 16 24 H -0.29 -6.99 7.11 56.52 0.40 -6.59 16 25 H -0.28 -6.71 7.11 56.52 0.40 -6.31 16 26 C 0.17 3.85 4.84 -3.71 -0.02 3.84 16 27 C -0.13 -2.24 4.91 -26.61 -0.13 -2.37 16 28 H 0.04 0.34 8.14 -51.93 -0.42 -0.09 16 29 H 0.04 0.36 8.14 -51.93 -0.42 -0.07 16 30 H 0.08 0.74 8.14 -51.93 -0.42 0.32 16 31 H 0.05 0.59 8.14 -51.93 -0.42 0.16 16 32 H 0.05 0.66 8.14 -51.93 -0.42 0.23 16 33 H 0.06 1.04 8.14 -51.93 -0.42 0.62 16 34 H 0.09 1.79 4.99 -51.93 -0.26 1.53 16 35 H 0.42 6.31 4.17 -40.82 -0.17 6.14 16 36 H 0.06 0.59 8.10 -51.93 -0.42 0.17 16 37 H 0.06 0.48 8.14 -51.93 -0.42 0.06 16 38 H 0.06 0.56 8.10 -51.93 -0.42 0.14 16 39 H 0.08 1.05 6.43 -51.93 -0.33 0.72 16 40 H 0.07 0.58 8.14 -51.93 -0.42 0.16 16 41 H 0.06 0.59 8.14 -51.93 -0.42 0.17 16 42 H 0.05 0.50 8.14 -51.93 -0.42 0.08 16 43 H 0.07 0.54 8.14 -51.93 -0.42 0.12 16 44 H 0.08 0.96 6.43 -51.93 -0.33 0.62 16 45 H 0.06 0.90 6.50 -51.93 -0.34 0.56 16 46 H 0.06 1.08 8.14 -51.93 -0.42 0.65 16 47 H 0.05 1.11 7.93 -51.93 -0.41 0.69 16 48 H 0.02 0.41 6.70 -51.93 -0.35 0.07 16 49 H 0.25 7.08 8.31 -40.82 -0.34 6.74 16 50 H 0.09 2.32 6.04 -51.93 -0.31 2.01 16 51 H 0.02 0.56 6.70 -51.93 -0.35 0.21 16 52 H 0.06 1.14 8.14 -51.93 -0.42 0.72 16 53 H 0.05 0.84 8.14 -51.93 -0.42 0.42 16 LS Contribution 401.86 15.07 6.06 6.06 Total: -1.00 -29.82 401.86 -7.19 -37.01 By element: Atomic # 1 Polarization: 14.42 SS G_CDS: -9.16 Total: 5.25 kcal Atomic # 6 Polarization: 5.10 SS G_CDS: 1.19 Total: 6.29 kcal Atomic # 7 Polarization: -50.72 SS G_CDS: -0.18 Total: -50.90 kcal Atomic # 8 Polarization: -20.12 SS G_CDS: -0.07 Total: -20.18 kcal Atomic # 14 Polarization: 21.50 SS G_CDS: -5.03 Total: 16.47 kcal Total LS contribution 6.06 Total: 6.06 kcal Total: -29.82 -7.19 -37.01 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. ZINC001162176214.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 -61.771 kcal (2) G-P(sol) polarization free energy of solvation -29.818 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -91.588 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -7.191 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -37.008 kcal (6) G-S(sol) free energy of system = (1) + (5) -98.779 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.22 seconds