Wall clock time and date at job start Sat Apr 11 2020 06:13:09 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 N 1.46894 * 1 3 3 C 1.46897 * 111.00496 * 2 1 4 4 C 1.53004 * 109.46925 * 66.04747 * 3 2 1 5 5 N 1.46498 * 109.47369 * 180.02562 * 4 3 2 6 6 C 1.34770 * 120.00477 * 180.02562 * 5 4 3 7 7 O 1.21289 * 119.99871 * 359.97438 * 6 5 4 8 8 C 1.50697 * 120.00595 * 179.97438 * 6 5 4 9 9 C 1.53004 * 109.47487 * 179.97438 * 8 6 5 10 10 N 1.46898 * 109.46850 * 180.02562 * 9 8 6 11 11 C 1.46845 * 111.00565 * 45.79157 * 10 9 8 12 12 C 1.53034 * 109.52676 * 185.84030 * 11 10 9 13 13 C 1.53126 * 109.27454 * 300.81918 * 12 11 10 14 14 C 1.53119 * 109.16048 * 57.65518 * 13 12 11 15 15 C 1.46850 * 110.99813 * 170.00223 * 10 9 8 16 16 C 1.46900 * 111.00032 * 236.04805 * 2 1 3 17 17 C 1.50706 * 109.47071 * 293.95594 * 16 2 1 18 18 O 1.21287 * 119.99813 * 359.97438 * 17 16 2 19 19 N 1.34779 * 119.99993 * 179.97438 * 17 16 2 20 20 C 1.37098 * 119.99769 * 180.02562 * 19 17 16 21 21 H 1.07998 * 120.00151 * 359.97438 * 20 19 17 22 22 C 1.38949 * 119.99748 * 180.02562 * 20 19 17 23 23 N 1.31407 * 120.00085 * 179.97438 * 22 20 19 24 24 Si 1.86801 * 120.00160 * 359.97438 * 22 20 19 25 25 H 1.48499 * 109.47287 * 90.00149 * 24 22 20 26 26 H 1.48498 * 109.47085 * 210.00240 * 24 22 20 27 27 H 1.48505 * 109.46960 * 330.00096 * 24 22 20 28 28 H 1.09006 * 109.47080 * 59.99571 * 1 2 3 29 29 H 1.08995 * 109.47563 * 180.02562 * 1 2 3 30 30 H 1.09005 * 109.47140 * 299.99975 * 1 2 3 31 31 H 1.09004 * 109.47243 * 306.05488 * 3 2 1 32 32 H 1.08995 * 109.47618 * 186.04753 * 3 2 1 33 33 H 1.08997 * 109.47155 * 60.00105 * 4 3 2 34 34 H 1.09006 * 109.47235 * 299.99984 * 4 3 2 35 35 H 0.97007 * 119.99619 * 359.97438 * 5 4 3 36 36 H 1.09006 * 109.46822 * 60.00018 * 8 6 5 37 37 H 1.08999 * 109.46918 * 300.00498 * 8 6 5 38 38 H 1.08995 * 109.46637 * 59.99964 * 9 8 6 39 39 H 1.09001 * 109.46762 * 299.99921 * 9 8 6 40 40 H 1.08995 * 109.46315 * 65.81881 * 11 10 9 41 41 H 1.09005 * 109.45975 * 305.85394 * 11 10 9 42 42 H 1.08997 * 109.50792 * 180.88024 * 12 11 10 43 43 H 1.09006 * 109.50471 * 60.75677 * 12 11 10 44 44 H 1.08999 * 109.52028 * 177.55723 * 13 12 11 45 45 H 1.08993 * 109.52259 * 297.74866 * 13 12 11 46 46 H 1.09004 * 109.50440 * 62.28501 * 14 13 12 47 47 H 1.09003 * 109.50154 * 182.40625 * 14 13 12 48 48 H 1.09005 * 109.46186 * 54.13967 * 15 10 9 49 49 H 1.08998 * 109.46012 * 294.17361 * 15 10 9 50 50 H 1.09004 * 109.47224 * 53.95082 * 16 2 1 51 51 H 1.08996 * 109.47768 * 173.95541 * 16 2 1 52 52 H 0.96999 * 119.99649 * 0.02562 * 19 17 16 53 53 H 0.97001 * 120.00370 * 179.97438 * 23 22 20 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 7 1.4689 0.0000 0.0000 3 6 1.9955 1.3714 0.0000 4 6 1.6316 2.0574 1.3183 5 7 2.1561 3.4252 1.3182 6 6 1.9557 4.2240 2.3850 7 8 1.3405 3.8105 3.3451 8 6 2.4957 5.6309 2.3851 9 6 2.1317 6.3169 3.7033 10 7 2.6577 7.6885 3.7031 11 6 2.3698 8.3624 2.4305 12 6 3.0551 9.7305 2.4098 13 6 2.5408 10.5712 3.5817 14 6 2.8095 9.8251 4.8915 15 6 2.1314 8.4541 4.8403 16 6 1.9954 -0.7659 -1.1376 17 6 1.6368 -2.2204 -0.9729 18 8 1.0053 -2.5833 -0.0031 19 7 2.0179 -3.1180 -1.9034 20 6 1.6912 -4.4410 -1.7538 21 1 1.1289 -4.7641 -0.8902 22 6 2.0845 -5.3664 -2.7128 23 7 1.7719 -6.6347 -2.5692 24 14 3.0578 -4.8077 -4.2061 25 1 4.5102 -4.8751 -3.9041 26 1 2.7500 -5.6937 -5.3574 27 1 2.6868 -3.4100 -4.5441 28 1 -0.3633 0.5139 -0.8900 29 1 -0.3634 -1.0276 0.0005 30 1 -0.3634 0.5138 0.8900 31 1 1.5611 1.9274 -0.8308 32 1 3.0797 1.3443 -0.1083 33 1 2.0659 1.5014 2.1492 34 1 0.5472 2.0845 1.4266 35 1 2.6484 3.7557 0.5504 36 1 2.0611 6.1869 1.5544 37 1 3.5799 5.6038 2.2764 38 1 2.5660 5.7609 4.5342 39 1 1.0474 6.3440 3.8115 40 1 1.2930 8.4938 2.3246 41 1 2.7444 7.7561 1.6057 42 1 2.8284 10.2370 1.4716 43 1 4.1333 9.5990 2.5018 44 1 3.0580 11.5306 3.5964 45 1 1.4692 10.7357 3.4694 46 1 3.8838 9.6950 5.0226 47 1 2.4073 10.3990 5.7264 48 1 2.3327 7.9145 5.7657 49 1 1.0557 8.5852 4.7231 50 1 1.5610 -0.3872 -2.0628 51 1 3.0796 -0.6612 -1.1757 52 1 2.5233 -2.8278 -2.6788 53 1 2.0461 -7.2807 -3.2388 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 ZINC001753074663.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 06:13:09 Heat of formation + Delta-G solvation = -62.947175 kcal Electronic energy + Delta-G solvation = -28776.087814 eV Core-core repulsion = 24682.688712 eV Total energy + Delta-G solvation = -4093.399102 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.226 amu Computer time = 0.87 seconds Orbital eigenvalues (eV) -40.23217 -39.26069 -38.79714 -36.95092 -34.84088 -34.59540 -33.87313 -31.69611 -31.58029 -30.80774 -29.30859 -27.84880 -25.84039 -25.08565 -23.77881 -23.47896 -22.17853 -21.30009 -20.38162 -20.06109 -19.37173 -18.28315 -17.66822 -16.42632 -16.31798 -16.18958 -15.88482 -15.59429 -15.31717 -14.97484 -14.94502 -14.85010 -14.45158 -14.22106 -13.92237 -13.79224 -13.77136 -13.43710 -13.12570 -13.08133 -12.87953 -12.59507 -12.45163 -12.15676 -12.07293 -11.86355 -11.73368 -11.60871 -11.53963 -11.39411 -11.15202 -11.14110 -11.05829 -10.82776 -10.74446 -10.61279 -10.09560 -9.98426 -9.55316 -9.26682 -8.75076 -8.61886 -8.19461 -8.03182 -6.31810 -3.83317 2.40496 2.76331 3.00638 3.05454 3.13824 3.47813 3.71925 4.00385 4.09351 4.28144 4.31765 4.44582 4.48748 4.58407 4.66951 4.72185 4.77556 4.83654 4.94385 4.97755 4.99514 5.12951 5.14777 5.19770 5.21846 5.30309 5.38899 5.42773 5.46399 5.47086 5.49922 5.57682 5.63420 5.66277 5.71467 5.74886 5.79738 5.80272 5.89889 5.90248 5.95143 6.18399 6.48298 6.61135 6.64230 7.06015 7.20166 7.23938 7.57343 7.98061 8.13797 8.59268 8.94561 9.41446 9.82274 10.81325 Molecular weight = 340.23amu Principal moments of inertia in cm(-1) A = 0.034347 B = 0.001385 C = 0.001350 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 815.018442 B =20218.361185 C =20732.091363 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.017 3.983 2 N -0.515 5.515 3 C 0.045 3.955 4 C 0.121 3.879 5 N -0.730 5.730 6 C 0.513 3.487 7 O -0.538 6.538 8 C -0.144 4.144 9 C 0.071 3.929 10 N -0.539 5.539 11 C 0.045 3.955 12 C -0.117 4.117 13 C -0.123 4.123 14 C -0.117 4.117 15 C 0.055 3.945 16 C 0.044 3.956 17 C 0.452 3.548 18 O -0.558 6.558 19 N -0.591 5.591 20 C -0.305 4.305 21 H 0.120 0.880 22 C 0.042 3.958 23 N -0.881 5.881 24 Si 0.880 3.120 25 H -0.271 1.271 26 H -0.277 1.277 27 H -0.270 1.270 28 H 0.016 0.984 29 H 0.099 0.901 30 H 0.064 0.936 31 H 0.036 0.964 32 H 0.079 0.921 33 H 0.080 0.920 34 H 0.070 0.930 35 H 0.399 0.601 36 H 0.095 0.905 37 H 0.103 0.897 38 H 0.086 0.914 39 H 0.043 0.957 40 H 0.032 0.968 41 H 0.080 0.920 42 H 0.065 0.935 43 H 0.071 0.929 44 H 0.063 0.937 45 H 0.058 0.942 46 H 0.071 0.929 47 H 0.066 0.934 48 H 0.076 0.924 49 H 0.033 0.967 50 H 0.050 0.950 51 H 0.090 0.910 52 H 0.370 0.630 53 H 0.273 0.727 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 4.372 35.453 5.584 36.155 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 -0.131 4.131 2 N -0.239 5.239 3 C -0.084 4.084 4 C -0.003 4.003 5 N -0.382 5.382 6 C 0.299 3.701 7 O -0.415 6.415 8 C -0.184 4.184 9 C -0.057 4.057 10 N -0.264 5.264 11 C -0.083 4.083 12 C -0.155 4.155 13 C -0.161 4.161 14 C -0.155 4.155 15 C -0.072 4.072 16 C -0.087 4.087 17 C 0.238 3.762 18 O -0.439 6.439 19 N -0.230 5.230 20 C -0.434 4.434 21 H 0.138 0.862 22 C -0.161 4.161 23 N -0.521 5.521 24 Si 0.706 3.294 25 H -0.196 1.196 26 H -0.202 1.202 27 H -0.196 1.196 28 H 0.035 0.965 29 H 0.117 0.883 30 H 0.083 0.917 31 H 0.054 0.946 32 H 0.098 0.902 33 H 0.098 0.902 34 H 0.088 0.912 35 H 0.233 0.767 36 H 0.113 0.887 37 H 0.121 0.879 38 H 0.104 0.896 39 H 0.061 0.939 40 H 0.051 0.949 41 H 0.099 0.901 42 H 0.084 0.916 43 H 0.090 0.910 44 H 0.082 0.918 45 H 0.076 0.924 46 H 0.090 0.910 47 H 0.085 0.915 48 H 0.095 0.905 49 H 0.052 0.948 50 H 0.068 0.932 51 H 0.108 0.892 52 H 0.203 0.797 53 H 0.084 0.916 Dipole moment (debyes) X Y Z Total from point charges 4.146 34.392 7.353 35.413 hybrid contribution -0.090 0.796 -2.631 2.750 sum 4.056 35.188 4.722 35.735 Atomic orbital electron populations 1.22645 0.86291 1.04867 0.99262 1.61428 1.09089 1.10582 1.42835 1.22254 1.00728 0.89650 0.95764 1.21342 0.99640 0.80735 0.98588 1.45951 1.58123 1.14440 1.19721 1.20569 0.79812 0.87383 0.82360 1.90744 1.40782 1.75851 1.34082 1.21807 1.03624 0.92798 1.00176 1.21822 0.98495 0.88180 0.97174 1.62022 1.59599 1.01926 1.02858 1.22257 0.98202 0.95506 0.92342 1.21593 1.01147 0.94608 0.98162 1.21592 1.00898 0.98549 0.95023 1.21587 1.01669 0.94809 0.97399 1.22082 0.96647 0.94476 0.94032 1.21902 1.00795 0.94095 0.91913 1.19606 0.85206 0.86395 0.85030 1.90537 1.42576 1.79886 1.30920 1.42203 1.51045 1.08385 1.21403 1.19434 1.33853 0.80301 1.09775 0.86238 1.25031 0.97866 0.95118 0.98090 1.69619 1.45645 1.01156 1.35692 0.86675 0.80922 0.78659 0.83124 1.19599 1.20200 1.19583 0.96547 0.88301 0.91684 0.94566 0.90243 0.90159 0.91167 0.76711 0.88709 0.87852 0.89577 0.93906 0.94927 0.90142 0.91595 0.91005 0.91809 0.92359 0.91000 0.91543 0.90536 0.94836 0.93244 0.89170 0.79745 0.91610 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 0.02 0.26 8.96 60.06 0.54 0.80 16 2 N -0.52 -7.96 4.50 -244.37 -1.10 -9.06 16 3 C 0.04 0.49 5.07 -3.82 -0.02 0.47 16 4 C 0.12 1.36 5.60 -4.04 -0.02 1.33 16 5 N -0.73 -6.24 5.56 -60.29 -0.33 -6.58 16 6 C 0.51 5.17 7.83 -10.99 -0.09 5.09 16 7 O -0.54 -7.87 15.98 5.55 0.09 -7.79 16 8 C -0.14 -0.95 4.95 -27.88 -0.14 -1.09 16 9 C 0.07 0.57 4.56 -3.82 -0.02 0.56 16 10 N -0.54 -3.81 4.81 -234.67 -1.13 -4.94 16 11 C 0.04 0.26 4.85 -3.84 -0.02 0.24 16 12 C -0.12 -0.59 6.09 -26.65 -0.16 -0.75 16 13 C -0.12 -0.61 6.00 -26.60 -0.16 -0.77 16 14 C -0.12 -0.62 6.09 -26.65 -0.16 -0.79 16 15 C 0.06 0.36 5.42 -3.83 -0.02 0.34 16 16 C 0.04 0.72 5.45 -4.97 -0.03 0.69 16 17 C 0.45 10.11 7.47 -10.98 -0.08 10.02 16 18 O -0.56 -14.75 13.91 5.55 0.08 -14.67 16 19 N -0.59 -13.87 5.09 -10.96 -0.06 -13.93 16 20 C -0.30 -8.56 10.16 -14.93 -0.15 -8.71 16 21 H 0.12 3.84 7.39 -52.49 -0.39 3.46 16 22 C 0.04 1.14 5.50 -17.47 -0.10 1.04 16 23 N -0.88 -25.63 13.96 55.50 0.77 -24.86 16 24 Si 0.88 19.13 27.74 -169.99 -4.71 14.41 16 25 H -0.27 -5.77 7.11 56.52 0.40 -5.37 16 26 H -0.28 -6.05 7.11 56.52 0.40 -5.64 16 27 H -0.27 -5.32 6.52 56.52 0.37 -4.95 16 28 H 0.02 0.22 8.14 -51.93 -0.42 -0.20 16 29 H 0.10 1.90 5.83 -51.93 -0.30 1.60 16 30 H 0.06 0.92 6.47 -51.93 -0.34 0.58 16 31 H 0.04 0.34 8.12 -51.93 -0.42 -0.08 16 32 H 0.08 0.76 7.93 -51.93 -0.41 0.35 16 33 H 0.08 1.08 8.14 -51.93 -0.42 0.66 16 34 H 0.07 0.88 6.55 -51.93 -0.34 0.54 16 35 H 0.40 2.12 8.47 -40.82 -0.35 1.77 16 36 H 0.09 0.46 6.21 -51.93 -0.32 0.14 16 37 H 0.10 0.55 8.14 -51.93 -0.42 0.13 16 38 H 0.09 0.80 8.10 -51.93 -0.42 0.38 16 39 H 0.04 0.40 8.04 -51.93 -0.42 -0.02 16 40 H 0.03 0.20 8.14 -51.93 -0.42 -0.22 16 41 H 0.08 0.38 5.81 -51.93 -0.30 0.08 16 42 H 0.07 0.27 8.14 -51.93 -0.42 -0.15 16 43 H 0.07 0.39 8.14 -51.93 -0.42 -0.03 16 44 H 0.06 0.27 8.14 -51.93 -0.42 -0.15 16 45 H 0.06 0.30 8.14 -51.93 -0.42 -0.13 16 46 H 0.07 0.42 8.14 -51.93 -0.42 -0.01 16 47 H 0.07 0.30 8.14 -51.93 -0.42 -0.13 16 48 H 0.08 0.50 8.12 -51.93 -0.42 0.08 16 49 H 0.03 0.23 8.14 -51.93 -0.42 -0.19 16 50 H 0.05 0.70 8.12 -51.93 -0.42 0.28 16 51 H 0.09 1.24 7.93 -51.93 -0.41 0.83 16 52 H 0.37 7.57 5.76 -40.82 -0.24 7.34 16 53 H 0.27 7.34 8.31 -40.82 -0.34 7.00 16 LS Contribution 413.01 15.07 6.22 6.22 Total: -1.00 -34.66 413.01 -10.11 -44.77 By element: Atomic # 1 Polarization: 17.24 SS G_CDS: -9.32 Total: 7.92 kcal Atomic # 6 Polarization: 9.11 SS G_CDS: -0.63 Total: 8.49 kcal Atomic # 7 Polarization: -57.51 SS G_CDS: -1.84 Total: -59.36 kcal Atomic # 8 Polarization: -22.62 SS G_CDS: 0.17 Total: -22.46 kcal Atomic # 14 Polarization: 19.13 SS G_CDS: -4.71 Total: 14.41 kcal Total LS contribution 6.22 Total: 6.22 kcal Total: -34.66 -10.11 -44.77 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. ZINC001753074663.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 -18.181 kcal (2) G-P(sol) polarization free energy of solvation -34.655 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -52.836 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -10.111 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -44.766 kcal (6) G-S(sol) free energy of system = (1) + (5) -62.947 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.87 seconds