Wall clock time and date at job start Sat Apr 11 2020 06:10:39 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 1.52997 * 1 3 3 H 1.08996 * 109.47853 * 2 1 4 4 N 1.46497 * 109.47188 * 239.99601 * 2 1 3 5 5 C 1.36945 * 119.99649 * 85.00202 * 4 2 1 6 6 H 1.07997 * 120.00244 * 359.97438 * 5 4 2 7 7 C 1.38812 * 119.99544 * 180.02562 * 5 4 2 8 8 N 1.31613 * 120.00617 * 359.97438 * 7 5 4 9 9 Si 1.86804 * 119.99539 * 180.02562 * 7 5 4 10 10 H 1.48502 * 109.47315 * 359.97438 * 9 7 5 11 11 H 1.48498 * 109.47431 * 119.99933 * 9 7 5 12 12 H 1.48503 * 109.46941 * 239.99521 * 9 7 5 13 13 C 1.53006 * 109.47127 * 120.00159 * 2 1 3 14 14 H 1.08996 * 110.88912 * 57.57152 * 13 2 1 15 15 C 1.55163 * 111.00279 * 181.45314 * 13 2 1 16 16 C 1.54323 * 102.93679 * 153.57387 * 15 13 2 17 17 N 1.47014 * 107.27825 * 337.80484 * 16 15 13 18 18 C 1.34778 * 125.65589 * 178.96164 * 17 16 15 19 19 O 1.21280 * 120.00452 * 179.97438 * 18 17 16 20 20 C 1.50705 * 119.99470 * 359.97438 * 18 17 16 21 21 C 1.53000 * 109.47053 * 179.97438 * 20 18 17 22 22 O 1.42895 * 109.46945 * 179.97438 * 21 20 18 23 23 C 1.42898 * 113.99923 * 180.02562 * 22 21 20 24 24 C 1.53179 * 109.54495 * 269.82628 * 23 22 21 25 25 C 1.53099 * 109.15760 * 183.24194 * 24 23 22 26 26 O 1.42904 * 109.49114 * 57.47011 * 25 24 23 27 27 C 1.42904 * 114.09760 * 298.88846 * 26 25 24 28 28 C 1.53093 * 109.41370 * 61.15810 * 27 26 25 29 29 C 1.47428 * 108.70126 * 358.94313 * 17 16 15 30 30 H 1.09002 * 109.47153 * 59.99972 * 1 2 3 31 31 H 1.09001 * 109.46832 * 300.00163 * 1 2 3 32 32 H 1.09004 * 109.47261 * 180.02562 * 1 2 3 33 33 H 0.96996 * 120.00792 * 265.00493 * 4 2 1 34 34 H 0.97006 * 120.00607 * 180.02562 * 8 7 5 35 35 H 1.09000 * 110.71688 * 271.93294 * 15 13 2 36 36 H 1.09000 * 110.72061 * 35.03478 * 15 13 2 37 37 H 1.09001 * 109.88568 * 97.22878 * 16 15 13 38 38 H 1.09000 * 109.87993 * 218.22768 * 16 15 13 39 39 H 1.08994 * 109.47109 * 300.00294 * 20 18 17 40 40 H 1.09003 * 109.46886 * 59.99585 * 20 18 17 41 41 H 1.08998 * 109.47198 * 300.00503 * 21 20 18 42 42 H 1.09001 * 109.46657 * 60.00112 * 21 20 18 43 43 H 1.09004 * 109.54446 * 30.00383 * 23 22 21 44 44 H 1.09001 * 109.52139 * 303.05507 * 24 23 22 45 45 H 1.08995 * 109.52269 * 63.24520 * 24 23 22 46 46 H 1.09007 * 109.40637 * 297.49205 * 25 24 23 47 47 H 1.08997 * 109.49525 * 177.50699 * 25 24 23 48 48 H 1.08994 * 109.48428 * 301.17480 * 27 26 25 49 49 H 1.09002 * 109.48910 * 181.14183 * 27 26 25 50 50 H 1.09001 * 109.52757 * 182.48696 * 28 27 26 51 51 H 1.08998 * 109.57555 * 62.32305 * 28 27 26 52 52 H 1.09005 * 110.36773 * 265.28883 * 29 17 16 53 53 H 1.09002 * 110.36822 * 142.96358 * 29 17 16 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 1 1.8934 1.0276 0.0000 4 7 2.0183 -0.6907 -1.1961 5 6 2.1491 -0.0075 -2.3757 6 1 1.8919 1.0403 -2.4244 7 6 2.6113 -0.6621 -3.5092 8 7 2.9244 -1.9391 -3.4501 9 14 2.7905 0.2700 -5.1182 10 1 2.3765 1.6824 -4.9208 11 1 4.2073 0.2261 -5.5606 12 1 1.9293 -0.3579 -6.1524 13 6 2.0400 -0.7213 1.2493 14 1 1.6547 -1.7399 1.2944 15 6 3.5906 -0.7103 1.3037 16 6 3.8840 -0.8150 2.8151 17 7 2.6860 -0.3454 3.5261 18 6 2.5341 -0.2995 4.8645 19 8 1.4975 0.1088 5.3436 20 6 3.6526 -0.7557 5.7657 21 6 3.2257 -0.6007 7.2268 22 8 4.2860 -1.0338 8.0812 23 6 3.9882 -0.9304 9.4750 24 6 4.4209 0.4455 9.9908 25 6 4.1727 0.5173 11.4998 26 8 4.8836 -0.5378 12.1506 27 6 4.4856 -1.8481 11.7422 28 6 4.7485 -2.0158 10.2434 29 6 1.6782 0.0675 2.5324 30 1 -0.3633 0.5138 -0.8900 31 1 -0.3633 0.5139 0.8900 32 1 -0.3634 -1.0277 0.0005 33 1 2.2490 -1.6318 -1.1526 34 1 3.2477 -2.3965 -4.2421 35 1 4.0013 -1.5679 0.7708 36 1 3.9843 0.2204 0.8952 37 1 4.0909 -1.8515 3.0817 38 1 4.7390 -0.1891 3.0710 39 1 3.8794 -1.8021 5.5621 40 1 4.5390 -0.1491 5.5802 41 1 2.9991 0.4459 7.4300 42 1 2.3391 -1.2071 7.4124 43 1 2.9167 -1.0572 9.6294 44 1 5.4821 0.5925 9.7901 45 1 3.8433 1.2211 9.4879 46 1 3.1058 0.4122 11.6968 47 1 4.5196 1.4780 11.8802 48 1 3.4229 -1.9842 11.9423 49 1 5.0581 -2.5915 12.2970 50 1 4.4049 -2.9987 9.9209 51 1 5.8164 -1.9207 10.0470 52 1 1.7431 1.1401 2.3494 53 1 0.6779 -0.2002 2.8729 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 ZINC001484353980.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 06:10:39 Heat of formation + Delta-G solvation = -130.275525 kcal Electronic energy + Delta-G solvation = -29537.721378 eV Core-core repulsion = 25409.109948 eV Total energy + Delta-G solvation = -4128.611429 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.91 seconds Orbital eigenvalues (eV) -40.27319 -39.93567 -38.17239 -37.56930 -35.24140 -33.40804 -32.51294 -31.62388 -31.37091 -30.35335 -29.23864 -27.51409 -25.35526 -24.56717 -24.12977 -23.61100 -22.48310 -21.45872 -20.85896 -19.67346 -19.13092 -17.80696 -17.17716 -16.89268 -16.66980 -16.41849 -16.21511 -15.92827 -15.32788 -15.22214 -14.84110 -14.43819 -14.33493 -13.97123 -13.73360 -13.56722 -13.46286 -13.22361 -12.90604 -12.66894 -12.58664 -12.52068 -12.24841 -12.11391 -11.99664 -11.81953 -11.74020 -11.48269 -11.23501 -11.20353 -10.92664 -10.84434 -10.73826 -10.60763 -10.41506 -10.21438 -10.17718 -9.99385 -9.85550 -9.84074 -9.66499 -8.95125 -8.65888 -6.99568 -5.80184 -3.08601 2.52734 2.69876 3.32276 3.40584 3.45247 3.47038 3.48653 4.25296 4.29327 4.39642 4.46687 4.54727 4.57941 4.70672 4.71845 4.74357 4.78412 4.89069 4.94685 5.04595 5.09457 5.15911 5.18396 5.23971 5.29338 5.33808 5.45904 5.49978 5.51413 5.52621 5.53464 5.65623 5.67192 5.74885 5.84680 5.87829 5.95140 6.04498 6.18264 6.20680 6.36774 6.41877 6.57250 6.61285 6.68361 6.83417 6.84198 7.06882 7.47395 7.67999 8.05186 8.38300 9.50022 10.06896 10.41900 11.42436 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.033108 B = 0.001570 C = 0.001542 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 845.524244 B =17824.815186 C =18156.072456 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.167 4.167 2 C 0.185 3.815 3 H 0.049 0.951 4 N -0.722 5.722 5 C -0.236 4.236 6 H 0.070 0.930 7 C -0.013 4.013 8 N -0.932 5.932 9 Si 0.904 3.096 10 H -0.281 1.281 11 H -0.292 1.292 12 H -0.292 1.292 13 C -0.102 4.102 14 H 0.080 0.920 15 C -0.116 4.116 16 C 0.096 3.904 17 N -0.614 5.614 18 C 0.531 3.469 19 O -0.550 6.550 20 C -0.135 4.135 21 C 0.078 3.922 22 O -0.382 6.382 23 C 0.091 3.909 24 C -0.180 4.180 25 C 0.063 3.937 26 O -0.383 6.383 27 C 0.063 3.937 28 C -0.154 4.154 29 C 0.114 3.886 30 H 0.054 0.946 31 H 0.037 0.963 32 H 0.046 0.954 33 H 0.383 0.617 34 H 0.254 0.746 35 H 0.087 0.913 36 H 0.080 0.920 37 H 0.068 0.932 38 H 0.067 0.933 39 H 0.101 0.899 40 H 0.101 0.899 41 H 0.057 0.943 42 H 0.058 0.942 43 H 0.063 0.937 44 H 0.082 0.918 45 H 0.077 0.923 46 H 0.052 0.948 47 H 0.098 0.902 48 H 0.052 0.948 49 H 0.100 0.900 50 H 0.081 0.919 51 H 0.082 0.918 52 H 0.069 0.931 53 H 0.076 0.924 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 3.549 1.005 28.640 28.877 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 -0.228 4.228 2 C 0.075 3.925 3 H 0.067 0.933 4 N -0.363 5.363 5 C -0.367 4.367 6 H 0.088 0.912 7 C -0.209 4.209 8 N -0.581 5.581 9 Si 0.736 3.264 10 H -0.206 1.206 11 H -0.219 1.219 12 H -0.219 1.219 13 C -0.123 4.123 14 H 0.099 0.901 15 C -0.154 4.154 16 C -0.027 4.027 17 N -0.348 5.348 18 C 0.320 3.680 19 O -0.428 6.428 20 C -0.175 4.175 21 C 0.001 3.999 22 O -0.301 6.301 23 C 0.033 3.967 24 C -0.218 4.218 25 C -0.014 4.014 26 O -0.301 6.301 27 C -0.013 4.013 28 C -0.192 4.192 29 C -0.009 4.009 30 H 0.073 0.927 31 H 0.056 0.944 32 H 0.065 0.935 33 H 0.217 0.783 34 H 0.064 0.936 35 H 0.106 0.894 36 H 0.099 0.901 37 H 0.086 0.914 38 H 0.086 0.914 39 H 0.120 0.880 40 H 0.119 0.881 41 H 0.076 0.924 42 H 0.076 0.924 43 H 0.081 0.919 44 H 0.100 0.900 45 H 0.095 0.905 46 H 0.070 0.930 47 H 0.116 0.884 48 H 0.070 0.930 49 H 0.118 0.882 50 H 0.100 0.900 51 H 0.100 0.900 52 H 0.088 0.912 53 H 0.095 0.905 Dipole moment (debyes) X Y Z Total from point charges 3.331 1.321 28.894 29.115 hybrid contribution -0.239 0.145 -1.322 1.351 sum 3.092 1.466 27.573 27.784 Atomic orbital electron populations 1.22488 0.99232 1.00959 1.00073 1.20132 0.91803 0.95161 0.85449 0.93283 1.42366 1.78152 1.10652 1.05126 1.19271 1.36302 0.93886 0.87277 0.91163 1.24714 1.02256 0.95949 0.97988 1.69661 1.51050 1.08640 1.28761 0.86156 0.77276 0.78826 0.84157 1.20596 1.21926 1.21942 1.22675 0.95419 1.00036 0.94121 0.90121 1.22571 0.96190 1.04341 0.92257 1.22212 0.87360 0.99327 0.93781 1.48562 1.17749 1.63666 1.04802 1.19986 0.88495 0.78248 0.81297 1.90704 1.29763 1.47866 1.74504 1.21439 0.98363 1.04513 0.93163 1.22170 0.89383 0.99745 0.88560 1.87859 1.40599 1.86217 1.15436 1.22065 0.98650 0.94535 0.81439 1.22749 1.03921 0.98287 0.96859 1.22566 0.96256 0.91322 0.91222 1.87950 1.63081 1.14332 1.64753 1.22589 1.00040 0.85077 0.93634 1.22305 1.02520 0.99163 0.95167 1.22331 0.92171 0.99108 0.87274 0.92714 0.94408 0.93456 0.78295 0.93603 0.89396 0.90121 0.91416 0.91443 0.88041 0.88086 0.92437 0.92384 0.91926 0.89977 0.90465 0.93017 0.88402 0.92953 0.88178 0.90045 0.89953 0.91233 0.90513 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 -0.17 -2.92 9.34 37.16 0.35 -2.57 16 2 C 0.18 3.40 2.41 -67.93 -0.16 3.24 16 3 H 0.05 0.93 8.04 -51.93 -0.42 0.51 16 4 N -0.72 -16.85 4.82 -53.43 -0.26 -17.11 16 5 C -0.24 -6.26 9.93 -15.06 -0.15 -6.41 16 6 H 0.07 1.83 7.83 -52.49 -0.41 1.42 16 7 C -0.01 -0.36 5.50 -17.43 -0.10 -0.46 16 8 N -0.93 -27.22 13.06 55.49 0.72 -26.50 16 9 Si 0.90 21.87 29.55 -169.99 -5.02 16.85 16 10 H -0.28 -6.59 7.11 56.52 0.40 -6.19 16 11 H -0.29 -7.11 7.11 56.52 0.40 -6.71 16 12 H -0.29 -7.16 7.11 56.52 0.40 -6.76 16 13 C -0.10 -1.55 2.62 -88.46 -0.23 -1.78 16 14 H 0.08 1.26 8.14 -51.93 -0.42 0.83 16 15 C -0.12 -1.61 6.13 -24.89 -0.15 -1.76 16 16 C 0.10 1.07 6.49 -3.07 -0.02 1.05 16 17 N -0.61 -7.93 3.33 -170.52 -0.57 -8.49 16 18 C 0.53 6.98 7.85 -10.98 -0.09 6.89 16 19 O -0.55 -9.01 16.24 5.56 0.09 -8.92 16 20 C -0.13 -1.32 5.26 -27.88 -0.15 -1.47 16 21 C 0.08 0.78 5.04 37.16 0.19 0.97 16 22 O -0.38 -3.75 10.00 -35.23 -0.35 -4.10 16 23 C 0.09 0.72 2.69 -26.54 -0.07 0.65 16 24 C -0.18 -1.30 5.77 -26.59 -0.15 -1.45 16 25 C 0.06 0.41 6.84 37.21 0.25 0.66 16 26 O -0.38 -3.11 10.77 -35.23 -0.38 -3.49 16 27 C 0.06 0.38 6.84 37.21 0.25 0.64 16 28 C -0.15 -1.04 5.79 -26.59 -0.15 -1.19 16 29 C 0.11 1.59 5.56 -2.53 -0.01 1.57 16 30 H 0.05 1.03 8.14 -51.93 -0.42 0.61 16 31 H 0.04 0.56 7.45 -51.93 -0.39 0.17 16 32 H 0.05 0.83 8.14 -51.93 -0.42 0.41 16 33 H 0.38 9.55 7.80 -40.82 -0.32 9.23 16 34 H 0.25 7.22 8.31 -40.82 -0.34 6.88 16 35 H 0.09 1.30 8.14 -51.93 -0.42 0.88 16 36 H 0.08 1.20 8.04 -51.93 -0.42 0.78 16 37 H 0.07 0.67 8.14 -51.93 -0.42 0.24 16 38 H 0.07 0.65 8.14 -51.93 -0.42 0.23 16 39 H 0.10 0.88 8.14 -51.93 -0.42 0.46 16 40 H 0.10 0.87 8.14 -51.93 -0.42 0.45 16 41 H 0.06 0.59 7.93 -51.93 -0.41 0.18 16 42 H 0.06 0.60 8.04 -51.93 -0.42 0.18 16 43 H 0.06 0.46 7.79 -51.93 -0.40 0.06 16 44 H 0.08 0.65 8.14 -51.93 -0.42 0.23 16 45 H 0.08 0.53 7.97 -51.93 -0.41 0.12 16 46 H 0.05 0.28 8.14 -51.93 -0.42 -0.14 16 47 H 0.10 0.51 8.14 -51.93 -0.42 0.09 16 48 H 0.05 0.26 8.14 -51.93 -0.42 -0.16 16 49 H 0.10 0.46 8.14 -51.93 -0.42 0.03 16 50 H 0.08 0.49 8.14 -51.93 -0.42 0.07 16 51 H 0.08 0.62 8.14 -51.93 -0.42 0.20 16 52 H 0.07 0.97 8.00 -51.93 -0.42 0.56 16 53 H 0.08 1.12 7.96 -51.93 -0.41 0.70 16 LS Contribution 420.44 15.07 6.34 6.34 Total: -1.00 -31.57 420.44 -9.73 -41.30 By element: Atomic # 1 Polarization: 15.46 SS G_CDS: -9.90 Total: 5.56 kcal Atomic # 6 Polarization: -1.03 SS G_CDS: -0.40 Total: -1.43 kcal Atomic # 7 Polarization: -52.00 SS G_CDS: -0.10 Total: -52.10 kcal Atomic # 8 Polarization: -15.86 SS G_CDS: -0.64 Total: -16.50 kcal Atomic # 14 Polarization: 21.87 SS G_CDS: -5.02 Total: 16.85 kcal Total LS contribution 6.34 Total: 6.34 kcal Total: -31.57 -9.73 -41.30 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. ZINC001484353980.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 -88.980 kcal (2) G-P(sol) polarization free energy of solvation -31.566 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -120.546 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.730 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -41.296 kcal (6) G-S(sol) free energy of system = (1) + (5) -130.276 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.91 seconds