Wall clock time and date at job start Tue Mar 31 2020 21:12:47 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 N 2 2 C 1.31620 * 1 3 3 Si 1.86797 * 120.00018 * 2 1 4 4 H 1.48502 * 109.47270 * 272.38608 * 3 2 1 5 5 H 1.48494 * 109.47017 * 32.38907 * 3 2 1 6 6 H 1.48502 * 109.46790 * 152.38845 * 3 2 1 7 7 C 1.38816 * 119.99488 * 180.02562 * 2 1 3 8 8 H 1.07991 * 119.99985 * 347.99815 * 7 2 1 9 9 N 1.36937 * 119.99332 * 168.27979 * 7 2 1 10 10 C 1.47429 * 125.64672 * 136.90934 * 9 7 2 11 11 C 1.54687 * 104.93966 * 204.06709 * 10 9 7 12 12 C 1.55156 * 101.68029 * 323.27676 * 11 10 9 13 13 C 1.47018 * 125.65072 * 317.20678 * 9 7 2 14 14 H 1.09001 * 109.87991 * 59.49080 * 13 9 7 15 15 C 1.53004 * 109.88424 * 298.48299 * 13 9 7 16 16 H 1.09003 * 109.58184 * 282.57659 * 15 13 9 17 17 C 1.53191 * 109.58362 * 43.00397 * 15 13 9 18 18 C 1.53045 * 109.30897 * 174.42429 * 17 15 13 19 19 C 1.53043 * 109.53550 * 298.63338 * 18 17 15 20 20 C 1.53193 * 109.31240 * 61.36855 * 19 18 17 21 21 N 1.46921 * 108.77586 * 305.36323 * 20 19 18 22 22 C 1.34777 * 120.63151 * 233.63266 * 21 20 19 23 23 O 1.21276 * 120.00126 * 185.92042 * 22 21 20 24 24 C 1.50700 * 119.99947 * 5.92489 * 22 21 20 25 25 C 1.53005 * 112.85052 * 63.79666 * 24 22 21 26 26 F 1.39902 * 109.47210 * 175.00054 * 25 24 22 27 27 C 1.53776 * 113.61325 * 292.49630 * 24 22 21 28 28 C 1.53785 * 87.08076 * 220.01719 * 27 24 22 29 29 C 1.53778 * 113.61680 * 194.99494 * 24 22 21 30 30 H 0.97000 * 120.00123 * 359.97438 * 1 2 3 31 31 H 1.09000 * 110.36345 * 322.99701 * 10 9 7 32 32 H 1.08994 * 110.36562 * 85.32054 * 10 9 7 33 33 H 1.08999 * 111.10690 * 205.10106 * 11 10 9 34 34 H 1.09009 * 110.81556 * 81.32087 * 11 10 9 35 35 H 1.09004 * 110.72070 * 276.97282 * 12 11 10 36 36 H 1.09000 * 110.72195 * 153.69726 * 12 11 10 37 37 H 1.08999 * 109.49850 * 294.36892 * 17 15 13 38 38 H 1.08999 * 109.50129 * 54.47469 * 17 15 13 39 39 H 1.09001 * 109.45790 * 178.61300 * 18 17 15 40 40 H 1.09005 * 109.46023 * 58.65595 * 18 17 15 41 41 H 1.09002 * 109.49802 * 301.41140 * 19 18 17 42 42 H 1.09003 * 109.51878 * 181.33375 * 19 18 17 43 43 H 1.09002 * 109.58534 * 185.57620 * 20 19 18 44 44 H 1.09002 * 109.70247 * 65.22204 * 20 19 18 45 45 H 1.09002 * 109.47367 * 294.99885 * 25 24 22 46 46 H 1.08998 * 109.47097 * 55.00025 * 25 24 22 47 47 H 1.09001 * 113.61630 * 334.55924 * 27 24 22 48 48 H 1.08993 * 113.62048 * 105.46866 * 27 24 22 49 49 H 1.09001 * 113.61343 * 270.87943 * 28 27 24 50 50 H 1.09001 * 113.69163 * 139.99410 * 28 27 24 51 51 H 1.08997 * 113.61550 * 254.52643 * 29 24 22 52 52 H 1.09003 * 113.61510 * 25.43080 * 29 24 22 Note: An asterisk (*) indicates this parameter was or will be optimized. Cartesian coordinates (angstroms) NO. Atom X Y Z 1 7 0.0000 0.0000 0.0000 2 6 1.3162 0.0000 0.0000 3 14 2.2502 1.6177 0.0000 4 1 2.4472 2.0756 -1.3989 5 1 1.4738 2.6375 0.7499 6 1 3.5721 1.4260 0.6489 7 6 2.0102 -1.2022 -0.0005 8 1 1.4878 -2.1273 0.1935 9 7 3.3581 -1.2145 -0.2415 10 6 4.3558 -2.0098 0.4973 11 6 5.6910 -1.2527 0.3050 12 6 5.5571 -0.7457 -1.1553 13 6 4.0509 -0.4320 -1.2755 14 1 3.8796 0.6320 -1.1122 15 6 3.5413 -0.8342 -2.6611 16 1 3.9914 -1.7825 -2.9548 17 6 2.0163 -0.9749 -2.6263 18 6 1.5002 -1.2401 -4.0425 19 6 1.8557 -0.0575 -4.9466 20 6 3.3789 0.0936 -5.0075 21 7 3.8984 0.2038 -3.6376 22 6 4.6871 1.2377 -3.2834 23 8 5.1968 1.2624 -2.1832 24 6 4.9355 2.3632 -4.2543 25 6 3.6633 3.1379 -4.6040 26 9 3.9904 4.2300 -5.4149 27 6 5.7621 1.9462 -5.4822 28 6 6.4862 3.2970 -5.3553 29 6 6.1178 3.2651 -3.8626 30 1 -0.4850 0.8400 0.0004 31 1 4.0952 -2.0577 1.5546 32 1 4.4274 -3.0130 0.0774 33 1 6.5422 -1.9256 0.4085 34 1 5.7673 -0.4186 1.0027 35 1 5.8466 -1.5238 -1.8617 36 1 6.1520 0.1550 -1.3069 37 1 1.7424 -1.8070 -1.9777 38 1 1.5745 -0.0545 -2.2446 39 1 0.4177 -1.3651 -4.0170 40 1 1.9612 -2.1473 -4.4332 41 1 1.4154 0.8543 -4.5429 42 1 1.4674 -0.2359 -5.9493 43 1 3.6348 0.9924 -5.5687 44 1 3.8155 -0.7781 -5.4949 45 1 2.9741 2.4830 -5.1372 46 1 3.1913 3.4937 -3.6883 47 1 6.4075 1.0864 -5.3026 48 1 5.1723 1.8509 -6.3938 49 1 6.0043 4.1042 -5.9068 50 1 7.5585 3.2383 -5.5418 51 1 5.8152 4.2345 -3.4668 52 1 6.8604 2.7658 -3.2402 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) F: (AM1): M.J.S. DEWAR AND E. G. ZOEBISCH, THEOCHEM, 180, 1 (1988). 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 ZINC001025270633.mol2 52 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Tue Mar 31 2020 21:12:47 Heat of formation + Delta-G solvation = 3.040853 kcal Electronic energy + Delta-G solvation = -34016.875175 eV Core-core repulsion = 29933.729045 eV Total energy + Delta-G solvation = -4083.146129 eV No. of doubly occupied orbitals = 65 Molecular weight (most abundant/longest-lived isotopes) = 338.211 amu Computer time = 1.32 seconds Orbital eigenvalues (eV) -47.88240 -40.94393 -38.68950 -36.85109 -36.77639 -32.93975 -32.24605 -31.37149 -29.88272 -28.97774 -27.48938 -25.87382 -25.00267 -24.36707 -23.78872 -22.24301 -21.25608 -20.02300 -19.81146 -19.34346 -18.68593 -17.47226 -16.59334 -16.30022 -16.07684 -15.72470 -15.45829 -14.97857 -14.75525 -14.39490 -14.09035 -13.89185 -13.62397 -13.60268 -13.05004 -12.99093 -12.82242 -12.57705 -12.47239 -12.39710 -12.25432 -12.05473 -11.76673 -11.45530 -11.21640 -11.08967 -11.06104 -10.99025 -10.82916 -10.77611 -10.44350 -10.37959 -10.27756 -10.23402 -9.97720 -9.91728 -9.60604 -9.50963 -9.23102 -8.70859 -8.29120 -8.06767 -6.52864 -5.98953 -3.44697 2.80018 3.26404 3.37829 3.48800 3.65766 4.14844 4.31763 4.41486 4.54589 4.57725 4.68240 4.81051 4.99452 5.12617 5.15085 5.23304 5.25853 5.31382 5.35400 5.50519 5.54614 5.59836 5.66411 5.69875 5.70998 5.77375 5.78603 5.82790 5.91548 5.93377 6.02241 6.08379 6.15749 6.19568 6.30519 6.37791 6.38974 6.42075 6.44681 6.62351 6.75866 6.78853 6.90316 6.98455 7.03989 7.23069 7.45703 7.65006 7.77237 8.06839 8.36924 8.60326 8.94331 9.68490 10.36097 11.14757 Molecular weight = 338.21amu Principal moments of inertia in cm(-1) A = 0.012604 B = 0.005871 C = 0.005402 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2220.925901 B = 4767.680659 C = 5181.570417 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 N -0.902 5.902 2 C 0.045 3.955 3 Si 0.889 3.111 4 H -0.288 1.288 5 H -0.309 1.309 6 H -0.266 1.266 7 C -0.244 4.244 8 H 0.080 0.920 9 N -0.609 5.609 10 C 0.129 3.871 11 C -0.140 4.140 12 C -0.118 4.118 13 C 0.149 3.851 14 H 0.074 0.926 15 C 0.140 3.860 16 H 0.056 0.944 17 C -0.118 4.118 18 C -0.123 4.123 19 C -0.137 4.137 20 C 0.100 3.900 21 N -0.599 5.599 22 C 0.518 3.482 23 O -0.510 6.510 24 C -0.145 4.145 25 C 0.084 3.916 26 F -0.208 7.208 27 C -0.119 4.119 28 C -0.145 4.145 29 C -0.107 4.107 30 H 0.262 0.738 31 H 0.044 0.956 32 H 0.021 0.979 33 H 0.055 0.945 34 H 0.060 0.940 35 H 0.045 0.955 36 H 0.098 0.902 37 H 0.112 0.888 38 H 0.075 0.925 39 H 0.061 0.939 40 H 0.051 0.949 41 H 0.063 0.937 42 H 0.066 0.934 43 H 0.082 0.918 44 H 0.067 0.933 45 H 0.088 0.912 46 H 0.082 0.918 47 H 0.088 0.912 48 H 0.075 0.925 49 H 0.094 0.906 50 H 0.068 0.932 51 H 0.072 0.928 52 H 0.095 0.905 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 9.632 2.604 -13.531 16.812 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 N -0.544 5.544 2 C -0.156 4.156 3 Si 0.720 3.280 4 H -0.216 1.216 5 H -0.237 1.237 6 H -0.191 1.191 7 C -0.372 4.372 8 H 0.097 0.903 9 N -0.336 5.336 10 C 0.004 3.996 11 C -0.179 4.179 12 C -0.155 4.155 13 C 0.044 3.956 14 H 0.091 0.909 15 C 0.037 3.963 16 H 0.074 0.926 17 C -0.155 4.155 18 C -0.161 4.161 19 C -0.175 4.175 20 C -0.023 4.023 21 N -0.333 5.333 22 C 0.305 3.695 23 O -0.387 6.387 24 C -0.149 4.149 25 C 0.029 3.971 26 F -0.189 7.189 27 C -0.157 4.157 28 C -0.182 4.182 29 C -0.145 4.145 30 H 0.072 0.928 31 H 0.063 0.937 32 H 0.039 0.961 33 H 0.074 0.926 34 H 0.079 0.921 35 H 0.064 0.936 36 H 0.116 0.884 37 H 0.130 0.870 38 H 0.094 0.906 39 H 0.080 0.920 40 H 0.070 0.930 41 H 0.082 0.918 42 H 0.085 0.915 43 H 0.100 0.900 44 H 0.085 0.915 45 H 0.106 0.894 46 H 0.101 0.899 47 H 0.106 0.894 48 H 0.093 0.907 49 H 0.113 0.887 50 H 0.087 0.913 51 H 0.091 0.909 52 H 0.113 0.887 Dipole moment (debyes) X Y Z Total from point charges 9.645 2.708 -12.911 16.342 hybrid contribution 0.213 0.945 -0.210 0.991 sum 9.858 3.653 -13.120 16.813 Atomic orbital electron populations 1.69779 1.05699 1.26609 1.52265 1.25481 0.94993 0.97727 0.97444 0.86808 0.79860 0.83859 0.77430 1.21580 1.23741 1.19113 1.18331 0.80345 0.93282 1.45238 0.90272 1.44894 1.03261 1.52230 1.33242 1.21679 0.88448 0.93662 0.95811 1.22777 0.97571 0.99666 0.97868 1.22990 0.97159 1.00315 0.95045 1.21811 0.90588 0.96931 0.86275 0.90944 1.22100 0.96818 0.88322 0.89108 0.92573 1.22395 0.92681 1.06152 0.94316 1.21658 1.01014 0.96337 0.97064 1.21971 0.94898 1.00514 1.00144 1.21925 0.94800 1.02085 0.83497 1.48276 1.48528 1.24875 1.11573 1.19987 0.78911 0.82710 0.87868 1.90693 1.49055 1.77746 1.21184 1.22800 0.96788 0.97030 0.98306 1.21797 0.95139 0.85328 0.94844 1.92714 1.93955 1.56869 1.75357 1.22959 0.98257 0.98650 0.95834 1.23030 1.00527 0.97719 0.96920 1.22759 0.95820 0.99037 0.96843 0.92776 0.93712 0.96141 0.92584 0.92143 0.93601 0.88405 0.86987 0.90604 0.91987 0.92980 0.91828 0.91506 0.90040 0.91519 0.89408 0.89946 0.89378 0.90666 0.88721 0.91343 0.90948 0.88690 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 N -0.90 -26.34 13.97 55.49 0.78 -25.57 16 2 C 0.04 1.24 3.56 -17.43 -0.06 1.18 16 3 Si 0.89 23.62 23.68 -169.99 -4.02 19.60 16 4 H -0.29 -7.48 7.07 56.52 0.40 -7.08 16 5 H -0.31 -8.37 7.11 56.52 0.40 -7.97 16 6 H -0.27 -7.34 6.90 56.52 0.39 -6.95 16 7 C -0.24 -6.59 7.08 -15.06 -0.11 -6.70 16 8 H 0.08 2.31 8.06 -52.49 -0.42 1.88 16 9 N -0.61 -14.70 2.51 -162.71 -0.41 -15.11 16 10 C 0.13 2.73 7.22 -2.65 -0.02 2.71 16 11 C -0.14 -2.66 7.07 -24.70 -0.17 -2.84 16 12 C -0.12 -2.32 5.49 -24.90 -0.14 -2.45 16 13 C 0.15 3.30 1.33 -66.95 -0.09 3.22 16 14 H 0.07 1.79 1.43 -51.92 -0.07 1.72 16 15 C 0.14 2.74 2.75 -67.60 -0.19 2.55 16 16 H 0.06 1.07 7.69 -51.93 -0.40 0.68 16 17 C -0.12 -2.45 3.70 -26.61 -0.10 -2.55 16 18 C -0.12 -2.01 5.88 -26.69 -0.16 -2.16 16 19 C -0.14 -1.86 5.92 -26.61 -0.16 -2.01 16 20 C 0.10 1.28 5.30 -3.71 -0.02 1.26 16 21 N -0.60 -10.00 2.97 -165.22 -0.49 -10.49 16 22 C 0.52 8.89 6.40 -10.98 -0.07 8.82 16 23 O -0.51 -10.32 8.84 5.56 0.05 -10.27 16 24 C -0.15 -1.96 0.70 -154.85 -0.11 -2.07 16 25 C 0.08 1.10 6.67 37.16 0.25 1.35 16 26 F -0.21 -2.64 14.58 2.25 0.03 -2.61 16 27 C -0.12 -1.27 5.86 -25.92 -0.15 -1.42 16 28 C -0.14 -1.49 7.56 -25.92 -0.20 -1.69 16 29 C -0.11 -1.37 6.70 -25.92 -0.17 -1.54 16 30 H 0.26 7.41 8.31 -40.82 -0.34 7.07 16 31 H 0.04 0.95 8.14 -51.93 -0.42 0.53 16 32 H 0.02 0.41 8.14 -51.93 -0.42 -0.01 16 33 H 0.06 0.89 8.14 -51.93 -0.42 0.47 16 34 H 0.06 1.20 8.14 -51.92 -0.42 0.78 16 35 H 0.05 0.84 7.57 -51.93 -0.39 0.44 16 36 H 0.10 1.98 5.41 -53.86 -0.29 1.69 16 37 H 0.11 2.66 5.74 -51.93 -0.30 2.36 16 38 H 0.08 1.84 5.06 -51.93 -0.26 1.58 16 39 H 0.06 1.03 8.14 -51.93 -0.42 0.60 16 40 H 0.05 0.77 8.14 -51.93 -0.42 0.35 16 41 H 0.06 0.95 7.93 -51.93 -0.41 0.53 16 42 H 0.07 0.72 8.14 -51.93 -0.42 0.30 16 43 H 0.08 0.88 3.07 -51.93 -0.16 0.72 16 44 H 0.07 0.76 8.14 -51.93 -0.42 0.34 16 45 H 0.09 1.03 5.42 -51.93 -0.28 0.75 16 46 H 0.08 1.21 8.14 -51.93 -0.42 0.79 16 47 H 0.09 0.94 8.09 -51.93 -0.42 0.52 16 48 H 0.07 0.69 7.24 -51.93 -0.38 0.31 16 49 H 0.09 0.98 6.38 -51.93 -0.33 0.65 16 50 H 0.07 0.62 8.14 -51.93 -0.42 0.20 16 51 H 0.07 0.93 8.10 -51.93 -0.42 0.51 16 52 H 0.09 1.28 7.68 -51.93 -0.40 0.88 16 LS Contribution 361.41 15.07 5.45 5.45 Total: -1.00 -30.11 361.41 -8.60 -38.70 By element: Atomic # 1 Polarization: 12.96 SS G_CDS: -8.32 Total: 4.65 kcal Atomic # 6 Polarization: -2.68 SS G_CDS: -1.66 Total: -4.34 kcal Atomic # 7 Polarization: -51.04 SS G_CDS: -0.12 Total: -51.17 kcal Atomic # 8 Polarization: -10.32 SS G_CDS: 0.05 Total: -10.27 kcal Atomic # 9 Polarization: -2.64 SS G_CDS: 0.03 Total: -2.61 kcal Atomic # 14 Polarization: 23.62 SS G_CDS: -4.02 Total: 19.60 kcal Total LS contribution 5.45 Total: 5.45 kcal Total: -30.11 -8.60 -38.70 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. ZINC001025270633.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 41.745 kcal (2) G-P(sol) polarization free energy of solvation -30.107 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 11.638 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.597 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -38.704 kcal (6) G-S(sol) free energy of system = (1) + (5) 3.041 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.33 seconds