Wall clock time and date at job start Sun Mar 7 2021 04:11:34 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= 0 * 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 1.52996 * 1 3 3 O 1.42899 * 109.47414 * 2 1 4 4 C 1.35897 * 117.00057 * 84.21122 * 3 2 1 5 5 C 1.38730 * 120.05721 * 174.13256 * 4 3 2 6 6 C 1.38144 * 119.94686 * 179.74450 * 5 4 3 7 7 C 1.38267 * 120.05473 * 0.50625 * 6 5 4 8 8 C 1.50695 * 119.94620 * 179.74709 * 7 6 5 9 9 O 1.42894 * 109.47215 * 245.02021 * 8 7 6 10 10 Si 1.86303 * 109.47159 * 5.01824 * 8 7 6 11 11 H 1.48500 * 109.47038 * 60.00207 * 10 8 7 12 12 H 1.48497 * 109.47121 * 179.97438 * 10 8 7 13 13 H 1.48496 * 109.47084 * 300.00436 * 10 8 7 14 14 C 1.38268 * 120.10926 * 359.76482 * 7 6 5 15 15 C 1.38144 * 120.05755 * 359.97438 * 14 7 6 16 16 C 1.50698 * 109.47036 * 239.99522 * 2 1 3 17 17 O 1.21285 * 119.99635 * 104.86538 * 16 2 1 18 18 N 1.34773 * 120.00510 * 284.85667 * 16 2 1 19 19 C 1.46404 * 118.75254 * 357.14883 * 18 16 2 20 20 C 1.54458 * 108.76899 * 106.60386 * 19 18 16 21 21 Si 1.85199 * 107.11389 * 51.56303 * 20 19 18 22 22 C 1.87780 * 111.35788 * 191.90197 * 21 20 19 23 23 C 1.56401 * 98.97528 * 221.49105 * 22 21 20 24 24 C 1.53774 * 109.77382 * 39.37413 * 23 22 21 25 25 C 1.55682 * 111.40446 * 312.17482 * 24 23 22 26 26 C 1.85206 * 110.13510 * 315.95059 * 21 20 19 27 27 C 1.46389 * 118.75905 * 177.16930 * 18 16 2 28 28 H 1.08998 * 109.47360 * 191.76675 * 1 2 3 29 29 H 1.08996 * 109.47348 * 311.76323 * 1 2 3 30 30 H 1.09001 * 109.46993 * 71.76361 * 1 2 3 31 31 H 1.09007 * 109.47215 * 119.99830 * 2 1 3 32 32 H 1.08004 * 120.02824 * 359.97438 * 5 4 3 33 33 H 1.08001 * 119.97178 * 180.22524 * 6 5 4 34 34 H 1.08998 * 109.47254 * 125.01652 * 8 7 6 35 35 H 0.96699 * 114.00266 * 59.99421 * 9 8 7 36 36 H 1.08001 * 119.97259 * 179.97438 * 14 7 6 37 37 H 1.07995 * 120.02967 * 179.97438 * 15 14 7 38 38 H 1.09001 * 109.59087 * 346.81629 * 19 18 16 39 39 H 1.09000 * 109.58628 * 226.38856 * 19 18 16 40 40 H 1.08996 * 109.92759 * 292.15978 * 20 19 18 41 41 H 1.09001 * 109.92056 * 170.95803 * 20 19 18 42 42 H 1.08998 * 111.49210 * 104.04860 * 22 21 20 43 43 H 1.08993 * 111.49086 * 338.93445 * 22 21 20 44 44 H 1.09002 * 109.41945 * 279.27855 * 23 22 21 45 45 H 1.08997 * 109.41892 * 159.47272 * 23 22 21 46 46 H 1.09006 * 109.10103 * 72.69000 * 24 23 22 47 47 H 1.09001 * 109.10398 * 191.66209 * 24 23 22 48 48 H 1.08998 * 111.14893 * 145.89700 * 25 24 23 49 49 H 1.08997 * 111.14512 * 270.11586 * 25 24 23 50 50 H 1.09005 * 109.92225 * 163.44435 * 26 21 20 51 51 H 1.08994 * 109.92814 * 284.64159 * 26 21 20 52 52 H 1.09001 * 109.59046 * 13.17708 * 27 18 16 53 53 H 1.08999 * 109.58832 * 133.60176 * 27 18 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 8 2.0064 1.3472 0.0000 4 6 2.0969 1.9696 1.2047 5 6 2.6647 3.2323 1.2935 6 6 2.7508 3.8651 2.5185 7 6 2.2811 3.2367 3.6570 8 6 2.3815 3.9269 4.9929 9 8 3.2677 3.1949 5.8419 10 14 3.0375 5.6539 4.7519 11 1 2.1166 6.4146 3.8696 12 1 3.1358 6.3342 6.0682 13 1 4.3824 5.5895 4.1256 14 6 1.7199 1.9759 3.5720 15 6 1.6266 1.3411 2.3486 16 6 2.0323 -0.7105 -1.2304 17 8 2.4884 -0.0723 -2.1554 18 7 1.9748 -2.0550 -1.3029 19 6 1.4779 -2.8021 -0.1460 20 6 0.0626 -3.3312 -0.4666 21 14 0.1664 -4.2163 -2.0900 22 6 -1.5413 -4.5971 -2.7718 23 6 -1.2773 -6.0471 -3.2951 24 6 -0.3796 -6.8033 -2.3017 25 6 0.8534 -5.9486 -1.8858 26 6 1.1676 -3.2262 -3.2931 27 6 2.4119 -2.7133 -2.5352 28 1 -0.3634 -1.0060 0.2096 29 1 -0.3634 0.6844 0.7665 30 1 -0.3633 0.3216 -0.9761 31 1 1.8933 -0.5138 0.8900 32 1 3.0358 3.7218 0.4051 33 1 3.1895 4.8496 2.5875 34 1 1.3943 3.9742 5.4525 35 1 4.1665 3.1128 5.4949 36 1 1.3541 1.4869 4.4628 37 1 1.1885 0.3562 2.2828 38 1 1.4343 -2.1447 0.7223 39 1 2.1432 -3.6404 0.0608 40 1 -0.6370 -2.4988 -0.5414 41 1 -0.2612 -4.0212 0.3126 42 1 -1.8066 -3.9212 -3.5847 43 1 -2.2963 -4.5875 -1.9857 44 1 -0.7831 -5.9979 -4.2654 45 1 -2.2263 -6.5732 -3.3991 46 1 -0.9598 -7.0491 -1.4122 47 1 -0.0332 -7.7269 -2.7656 48 1 1.1338 -6.1407 -0.8502 49 1 1.6948 -6.1195 -2.5572 50 1 1.4747 -3.8563 -4.1279 51 1 0.5817 -2.3830 -3.6587 52 1 2.9514 -2.0003 -3.1588 53 1 3.0624 -3.5528 -2.2902 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=0 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 s_22_15733048_10157680.mol2 53 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Sun Mar 7 2021 04:11:34 Heat of formation + Delta-G solvation = -107.931918 kcal Electronic energy + Delta-G solvation = -31134.130921 eV Core-core repulsion = 27094.605538 eV Total energy + Delta-G solvation = -4039.525383 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 363.182 amu Computer time = 1.13 seconds Orbital eigenvalues (eV) -41.94857 -40.80617 -39.12878 -37.41951 -37.12466 -36.30369 -33.96724 -32.31029 -32.01907 -31.33575 -30.53628 -29.87277 -26.73136 -25.73560 -25.11995 -24.35407 -24.27895 -23.38042 -22.19997 -21.19102 -20.25867 -19.53797 -18.54707 -18.10783 -17.55236 -16.90626 -16.66639 -16.48025 -16.24404 -16.14926 -16.07337 -15.70892 -15.57131 -15.19535 -15.06499 -14.98258 -14.60972 -14.42757 -14.34819 -14.30328 -14.01817 -13.84224 -13.69559 -13.51300 -13.29568 -13.24056 -12.98481 -12.80327 -12.67252 -12.49041 -12.30074 -12.22824 -12.17574 -12.10804 -12.06132 -12.01922 -11.53382 -11.50568 -10.88722 -10.58853 -10.51194 -10.45835 -10.40841 -10.04652 -9.82113 -9.19401 0.23926 0.34453 1.16236 1.38276 1.43379 1.46440 1.52133 1.54567 1.59479 1.69182 1.91956 2.31612 2.45761 2.65554 3.16848 3.44557 3.48410 3.70235 3.70984 3.81484 3.83076 3.85379 3.88463 3.97758 4.00085 4.09840 4.19453 4.19888 4.23500 4.27209 4.30747 4.41702 4.44907 4.48316 4.53047 4.55267 4.58604 4.65244 4.67973 4.84196 4.86775 4.95021 4.97911 4.98140 5.05351 5.10815 5.18269 5.19974 5.22885 5.29666 5.36381 5.38361 5.41549 5.47261 5.66125 6.08932 6.34041 6.54691 7.04478 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.186 4.186 2 C 0.066 3.934 3 O -0.285 6.285 4 C 0.135 3.865 5 C -0.142 4.142 6 C -0.084 4.084 7 C -0.159 4.159 8 C -0.075 4.075 9 O -0.540 6.540 10 Si 0.946 3.054 11 H -0.250 1.250 12 H -0.254 1.254 13 H -0.251 1.251 14 C -0.047 4.047 15 C -0.212 4.212 16 C 0.518 3.482 17 O -0.511 6.511 18 N -0.611 5.611 19 C 0.109 3.891 20 C -0.438 4.438 21 Si 0.999 3.001 22 C -0.405 4.405 23 C -0.122 4.122 24 C -0.118 4.118 25 C -0.405 4.405 26 C -0.429 4.429 27 C 0.121 3.879 28 H 0.089 0.911 29 H 0.080 0.920 30 H 0.076 0.924 31 H 0.098 0.902 32 H 0.136 0.864 33 H 0.127 0.873 34 H 0.117 0.883 35 H 0.376 0.624 36 H 0.131 0.869 37 H 0.131 0.869 38 H 0.086 0.914 39 H 0.086 0.914 40 H 0.088 0.912 41 H 0.095 0.905 42 H 0.078 0.922 43 H 0.078 0.922 44 H 0.063 0.937 45 H 0.065 0.935 46 H 0.062 0.938 47 H 0.063 0.937 48 H 0.079 0.921 49 H 0.078 0.922 50 H 0.090 0.910 51 H 0.081 0.919 52 H 0.098 0.902 53 H 0.079 0.921 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -1.786 -4.144 2.293 5.061 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 -0.243 4.243 2 C 0.006 3.994 3 O -0.198 6.198 4 C 0.090 3.910 5 C -0.160 4.160 6 C -0.101 4.101 7 C -0.159 4.159 8 C -0.185 4.185 9 O -0.345 6.345 10 Si 0.769 3.231 11 H -0.173 1.173 12 H -0.178 1.178 13 H -0.175 1.175 14 C -0.066 4.066 15 C -0.231 4.231 16 C 0.304 3.696 17 O -0.385 6.385 18 N -0.347 5.347 19 C -0.014 4.014 20 C -0.524 4.524 21 Si 1.193 2.807 22 C -0.492 4.492 23 C -0.160 4.160 24 C -0.156 4.156 25 C -0.492 4.492 26 C -0.516 4.516 27 C 0.000 4.000 28 H 0.107 0.893 29 H 0.099 0.901 30 H 0.095 0.905 31 H 0.116 0.884 32 H 0.154 0.846 33 H 0.145 0.855 34 H 0.134 0.866 35 H 0.223 0.777 36 H 0.149 0.851 37 H 0.149 0.851 38 H 0.104 0.896 39 H 0.104 0.896 40 H 0.106 0.894 41 H 0.114 0.886 42 H 0.097 0.903 43 H 0.097 0.903 44 H 0.082 0.918 45 H 0.084 0.916 46 H 0.080 0.920 47 H 0.082 0.918 48 H 0.097 0.903 49 H 0.096 0.904 50 H 0.109 0.891 51 H 0.100 0.900 52 H 0.116 0.884 53 H 0.097 0.903 Dipole moment (debyes) X Y Z Total from point charges -1.664 -2.891 1.844 3.812 hybrid contribution 0.027 -0.774 -0.264 0.818 sum -1.636 -3.666 1.580 4.314 Atomic orbital electron populations 1.22543 0.92230 1.04587 1.04926 1.22291 0.96191 0.82822 0.98108 1.86220 1.80794 1.25590 1.27164 1.19086 0.95031 0.92799 0.84099 1.20392 1.03273 0.93667 0.98707 1.20883 0.98208 0.99252 0.91800 1.20207 1.03627 0.96747 0.95330 1.24881 0.98675 1.05228 0.89758 1.86508 1.24141 1.77140 1.46713 0.85736 0.80955 0.75581 0.80824 1.17330 1.17815 1.17523 1.20795 0.95336 0.93542 0.96882 1.21331 1.07131 1.01867 0.92728 1.20135 0.78626 0.82531 0.88273 1.90755 1.43559 1.65365 1.38784 1.48006 1.65005 1.05431 1.16222 1.21612 0.94988 0.97148 0.87614 1.26820 0.98772 1.08637 1.18210 0.79545 0.68039 0.66674 0.66473 1.26637 1.16161 0.99967 1.06413 1.22027 0.99837 0.95115 0.98997 1.21836 0.95414 0.99098 0.99233 1.26515 1.01145 1.17498 1.04017 1.26669 1.05983 1.09168 1.09795 1.21332 0.96148 0.97889 0.84674 0.89298 0.90138 0.90539 0.88421 0.84580 0.85501 0.86552 0.77664 0.85080 0.85118 0.89575 0.89622 0.89357 0.88637 0.90320 0.90273 0.91792 0.91586 0.91961 0.91838 0.90264 0.90357 0.89108 0.89982 0.88386 0.90266 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 -0.19 0.26 8.82 37.16 0.33 0.59 16 2 C 0.07 0.03 1.79 -27.89 -0.05 -0.02 16 3 O -0.29 -0.98 9.38 -38.86 -0.36 -1.35 16 4 C 0.14 0.29 6.53 -39.22 -0.26 0.03 16 5 C -0.14 -0.27 9.99 -39.43 -0.39 -0.66 16 6 C -0.08 -0.07 8.66 -39.60 -0.34 -0.41 16 7 C -0.16 -0.06 5.35 -104.60 -0.56 -0.62 16 8 C -0.07 0.04 2.80 36.00 0.10 0.14 16 9 O -0.54 -0.06 12.83 -35.23 -0.45 -0.51 16 10 Si 0.95 -0.49 25.14 -169.99 -4.27 -4.76 16 11 H -0.25 -0.04 7.11 56.52 0.40 0.36 16 12 H -0.25 -0.25 7.11 56.52 0.40 0.16 16 13 H -0.25 0.08 7.04 56.52 0.40 0.48 16 14 C -0.05 -0.01 9.68 -39.60 -0.38 -0.39 16 15 C -0.21 -0.05 8.18 -39.43 -0.32 -0.37 16 16 C 0.52 1.26 6.90 -10.99 -0.08 1.19 16 17 O -0.51 -3.55 15.82 -13.89 -0.22 -3.77 16 18 N -0.61 0.39 2.55 -172.04 -0.44 -0.05 16 19 C 0.11 -0.39 5.26 -3.33 -0.02 -0.41 16 20 C -0.44 1.82 4.89 37.92 0.19 2.01 16 21 Si 1.00 -3.52 10.74 -169.99 -1.83 -5.34 16 22 C -0.41 0.79 5.95 38.99 0.23 1.03 16 23 C -0.12 0.17 5.97 -24.50 -0.15 0.02 16 24 C -0.12 0.19 6.09 -24.90 -0.15 0.04 16 25 C -0.41 1.10 5.84 38.59 0.23 1.33 16 26 C -0.43 0.75 5.21 37.92 0.20 0.95 16 27 C 0.12 -0.09 5.94 -3.34 -0.02 -0.11 16 28 H 0.09 -0.32 4.44 -51.93 -0.23 -0.55 16 29 H 0.08 -0.13 7.00 -51.93 -0.36 -0.49 16 30 H 0.08 -0.01 8.09 -51.93 -0.42 -0.43 16 31 H 0.10 -0.19 4.70 -51.92 -0.24 -0.43 16 32 H 0.14 0.18 8.06 -52.48 -0.42 -0.25 16 33 H 0.13 -0.07 4.86 -52.49 -0.25 -0.33 16 34 H 0.12 -0.16 7.96 -51.93 -0.41 -0.58 16 35 H 0.38 -1.10 8.70 45.56 0.40 -0.70 16 36 H 0.13 -0.15 8.06 -52.49 -0.42 -0.57 16 37 H 0.13 -0.27 5.55 -52.49 -0.29 -0.56 16 38 H 0.09 -0.40 5.04 -51.93 -0.26 -0.66 16 39 H 0.09 -0.42 8.08 -51.93 -0.42 -0.84 16 40 H 0.09 -0.36 5.73 -51.93 -0.30 -0.66 16 41 H 0.09 -0.50 7.97 -51.93 -0.41 -0.91 16 42 H 0.08 -0.13 8.04 -51.93 -0.42 -0.54 16 43 H 0.08 -0.16 8.04 -51.93 -0.42 -0.58 16 44 H 0.06 -0.10 8.14 -51.93 -0.42 -0.52 16 45 H 0.07 -0.07 8.14 -51.93 -0.42 -0.49 16 46 H 0.06 -0.11 8.14 -51.93 -0.42 -0.54 16 47 H 0.06 -0.08 8.14 -51.93 -0.42 -0.51 16 48 H 0.08 -0.26 8.03 -51.93 -0.42 -0.67 16 49 H 0.08 -0.20 8.03 -51.93 -0.42 -0.62 16 50 H 0.09 -0.21 7.97 -51.93 -0.41 -0.63 16 51 H 0.08 -0.04 7.97 -51.93 -0.41 -0.45 16 52 H 0.10 0.15 6.89 -51.93 -0.36 -0.20 16 53 H 0.08 -0.21 8.08 -51.93 -0.42 -0.63 16 LS Contribution 401.41 15.07 6.05 6.05 Total: 0.00 -7.92 401.41 -10.80 -18.72 By element: Atomic # 1 Polarization: -5.52 SS G_CDS: -7.83 Total: -13.34 kcal Atomic # 6 Polarization: 5.80 SS G_CDS: -1.45 Total: 4.34 kcal Atomic # 7 Polarization: 0.39 SS G_CDS: -0.44 Total: -0.05 kcal Atomic # 8 Polarization: -4.59 SS G_CDS: -1.04 Total: -5.62 kcal Atomic # 14 Polarization: -4.01 SS G_CDS: -6.10 Total: -10.10 kcal Total LS contribution 6.05 Total: 6.05 kcal Total: -7.92 -10.80 -18.72 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. s_22_15733048_10157680.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 -89.207 kcal (2) G-P(sol) polarization free energy of solvation -7.924 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -97.132 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -10.800 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -18.725 kcal (6) G-S(sol) free energy of system = (1) + (5) -107.932 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.14 seconds