Wall clock time and date at job start Sat Apr 11 2020 06:13:41 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 1.53004 * 1 3 3 C 1.52997 * 109.47187 * 2 1 4 4 C 1.52996 * 109.47380 * 180.02562 * 3 2 1 5 5 C 1.52997 * 109.47380 * 179.97438 * 4 3 2 6 6 H 1.09010 * 109.47097 * 54.99785 * 5 4 3 7 7 N 1.46497 * 109.47173 * 295.00233 * 5 4 3 8 8 C 1.34780 * 119.99904 * 299.99441 * 7 5 4 9 9 N 1.34771 * 120.00221 * 179.97438 * 8 7 5 10 10 O 1.21585 * 119.99564 * 0.02562 * 8 7 5 11 11 C 1.50700 * 109.47568 * 174.99586 * 5 4 3 12 12 O 1.21279 * 119.99587 * 99.99483 * 11 5 4 13 13 N 1.34775 * 120.00233 * 280.00418 * 11 5 4 14 14 C 1.46927 * 120.63038 * 359.97088 * 13 11 5 15 15 C 1.53195 * 108.77126 * 126.41225 * 14 13 11 16 16 C 1.53037 * 109.31216 * 54.63791 * 15 14 13 17 17 C 1.53038 * 109.54002 * 298.63183 * 16 15 14 18 18 H 1.09003 * 109.52325 * 301.39759 * 17 16 15 19 19 N 1.46503 * 109.50081 * 181.31628 * 17 16 15 20 20 C 1.46494 * 119.99922 * 300.16161 * 19 17 16 21 21 C 1.36935 * 119.99693 * 120.15976 * 19 17 16 22 22 H 1.08000 * 120.00304 * 343.23746 * 21 19 17 23 23 C 1.38817 * 119.99734 * 163.51909 * 21 19 17 24 24 N 1.31626 * 119.99958 * 343.50513 * 23 21 19 25 25 Si 1.86798 * 120.00319 * 163.50476 * 23 21 19 26 26 H 1.48509 * 109.46678 * 89.99666 * 25 23 21 27 27 H 1.48495 * 109.47377 * 209.99615 * 25 23 21 28 28 H 1.48502 * 109.47155 * 330.00148 * 25 23 21 29 29 C 1.46925 * 120.62782 * 179.97438 * 13 11 5 30 30 H 1.08997 * 109.47077 * 299.99524 * 1 2 3 31 31 H 1.08994 * 109.47130 * 60.00246 * 1 2 3 32 32 H 1.09004 * 109.47080 * 180.02562 * 1 2 3 33 33 H 1.09005 * 109.47128 * 239.99817 * 2 1 3 34 34 H 1.08994 * 109.47130 * 119.99754 * 2 1 3 35 35 H 1.09005 * 109.47236 * 59.99883 * 3 2 1 36 36 H 1.09001 * 109.46878 * 300.00325 * 3 2 1 37 37 H 1.08993 * 109.47459 * 59.99790 * 4 3 2 38 38 H 1.09008 * 109.47065 * 299.99745 * 4 3 2 39 39 H 0.97003 * 120.00651 * 120.00194 * 7 5 4 40 40 H 0.96998 * 120.00402 * 0.02562 * 9 8 7 41 41 H 0.97002 * 119.99979 * 180.02562 * 9 8 7 42 42 H 1.08993 * 109.58973 * 246.20285 * 14 13 11 43 43 H 1.09003 * 109.58585 * 6.63147 * 14 13 11 44 44 H 1.09001 * 109.49173 * 174.58572 * 15 14 13 45 45 H 1.08994 * 109.50050 * 294.68375 * 15 14 13 46 46 H 1.08998 * 109.46107 * 178.60682 * 16 15 14 47 47 H 1.09006 * 109.46239 * 58.65275 * 16 15 14 48 48 H 1.08996 * 109.47486 * 264.82769 * 20 19 17 49 49 H 1.09002 * 109.47178 * 24.83153 * 20 19 17 50 50 H 1.09004 * 109.47235 * 144.82614 * 20 19 17 51 51 H 0.96994 * 119.99805 * 179.97438 * 24 23 21 52 52 H 1.08998 * 109.58566 * 113.80266 * 29 13 11 53 53 H 1.09001 * 109.59109 * 353.37137 * 29 13 11 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 6 2.0400 1.4425 0.0000 4 6 3.5700 1.4425 -0.0006 5 6 4.0800 2.8850 -0.0013 6 1 3.6457 3.4243 0.8406 7 7 3.6919 3.5396 -1.2531 8 6 4.1160 3.0439 -2.4325 9 7 3.7585 3.6457 -3.5841 10 8 4.8203 2.0531 -2.4574 11 6 5.5820 2.8869 0.1220 12 8 6.2711 3.0395 -0.8642 13 7 6.1593 2.7189 1.3282 14 6 5.3378 2.5333 2.5321 15 6 5.7906 1.2556 3.2457 16 6 7.2947 1.3334 3.5171 17 6 8.0495 1.4387 2.1900 18 1 7.8170 0.5734 1.5691 19 7 9.4908 1.4815 2.4491 20 6 10.0563 2.5573 3.2669 21 6 10.3093 0.5158 1.9268 22 1 9.8884 -0.4096 1.5623 23 6 11.6806 0.7240 1.8713 24 7 12.1678 1.9392 2.0072 25 14 12.8346 -0.7203 1.6037 26 1 13.0555 -0.9141 0.1479 27 1 14.1334 -0.4462 2.2693 28 1 12.2321 -1.9488 2.1807 29 6 7.6223 2.7179 1.4641 30 1 -0.3633 0.5137 0.8900 31 1 -0.3633 0.5138 -0.8900 32 1 -0.3633 -1.0277 0.0005 33 1 1.8934 -0.5139 -0.8900 34 1 1.8934 -0.5138 0.8900 35 1 1.6767 1.9563 0.8900 36 1 1.6766 1.9563 -0.8900 37 1 3.9330 0.9288 -0.8908 38 1 3.9337 0.9286 0.8892 39 1 3.1298 4.3299 -1.2332 40 1 3.1964 4.4359 -3.5643 41 1 4.0635 3.2887 -4.4329 42 1 5.4650 3.3878 3.1966 43 1 4.2894 2.4413 2.2484 44 1 5.2552 1.1572 4.1901 45 1 5.5789 0.3921 2.6152 46 1 7.6151 0.4364 4.0469 47 1 7.5088 2.2111 4.1271 48 1 10.4154 3.3563 2.6184 49 1 9.2884 2.9484 3.9343 50 1 10.8860 2.1675 3.8568 51 1 13.1260 2.0846 1.9688 52 1 7.9362 3.5875 2.0415 53 1 8.0812 2.7477 0.4759 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 ZINC001714454489.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 06:13:41 Heat of formation + Delta-G solvation = -46.479903 kcal Electronic energy + Delta-G solvation = -32036.840147 eV Core-core repulsion = 27944.155120 eV Total energy + Delta-G solvation = -4092.685027 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.226 amu Computer time = 0.93 seconds Orbital eigenvalues (eV) -40.67109 -39.14432 -37.24764 -36.29946 -34.99786 -34.23486 -33.51162 -32.26829 -31.21538 -30.57693 -28.82222 -26.98844 -25.95854 -24.78083 -23.47931 -22.80658 -21.78553 -21.46593 -20.76852 -19.38335 -18.71606 -18.41458 -17.26695 -16.74123 -16.58781 -16.01830 -15.47144 -15.17967 -14.82011 -14.51468 -14.31577 -14.18573 -14.09914 -13.96461 -13.68665 -13.60524 -13.17768 -13.09427 -12.76652 -12.59512 -12.45315 -12.24333 -11.88094 -11.76926 -11.41061 -11.27187 -11.08453 -11.04426 -10.96566 -10.75940 -10.74106 -10.55212 -10.33510 -10.28862 -10.12389 -10.00267 -9.73659 -9.70453 -9.64409 -9.52749 -8.74471 -8.49922 -8.16237 -6.74822 -5.65951 -3.05615 2.71864 3.01154 3.30506 3.45111 3.50938 3.52789 3.56413 4.40170 4.50390 4.56884 4.71865 4.72595 4.83639 4.95222 4.99463 5.13443 5.19462 5.23438 5.33832 5.49834 5.51757 5.53401 5.58592 5.63148 5.65970 5.72134 5.80765 5.86701 5.98180 6.01440 6.06773 6.09823 6.17115 6.28575 6.30187 6.40120 6.45781 6.57780 6.65940 6.75997 6.85907 6.94561 7.01205 7.08035 7.47046 7.76372 7.81165 7.89262 7.97647 8.43559 8.59518 8.82186 9.30135 9.94133 10.40176 11.39670 Molecular weight = 340.23amu Principal moments of inertia in cm(-1) A = 0.012972 B = 0.003065 C = 0.002858 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2157.933350 B = 9132.205542 C = 9793.967982 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.151 4.151 2 C -0.126 4.126 3 C -0.111 4.111 4 C -0.138 4.138 5 C 0.155 3.845 6 H 0.105 0.895 7 N -0.734 5.734 8 C 0.709 3.291 9 N -0.873 5.873 10 O -0.558 6.558 11 C 0.496 3.504 12 O -0.506 6.506 13 N -0.609 5.609 14 C 0.106 3.894 15 C -0.131 4.131 16 C -0.132 4.132 17 C 0.169 3.831 18 H 0.064 0.936 19 N -0.593 5.593 20 C 0.163 3.837 21 C -0.251 4.251 22 H 0.070 0.930 23 C -0.001 4.001 24 N -0.908 5.908 25 Si 0.904 3.096 26 H -0.288 1.288 27 H -0.290 1.290 28 H -0.281 1.281 29 C 0.101 3.899 30 H 0.052 0.948 31 H 0.051 0.949 32 H 0.052 0.948 33 H 0.062 0.938 34 H 0.063 0.937 35 H 0.059 0.941 36 H 0.060 0.940 37 H 0.096 0.904 38 H 0.077 0.923 39 H 0.396 0.604 40 H 0.391 0.609 41 H 0.413 0.587 42 H 0.065 0.935 43 H 0.077 0.923 44 H 0.068 0.932 45 H 0.064 0.936 46 H 0.064 0.936 47 H 0.058 0.942 48 H 0.026 0.974 49 H -0.001 1.001 50 H 0.047 0.953 51 H 0.251 0.749 52 H 0.058 0.942 53 H 0.089 0.911 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -26.654 4.834 -1.284 27.119 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 -0.208 4.208 2 C -0.163 4.163 3 C -0.148 4.148 4 C -0.176 4.176 5 C 0.046 3.954 6 H 0.123 0.877 7 N -0.391 5.391 8 C 0.407 3.593 9 N -0.442 5.442 10 O -0.432 6.432 11 C 0.280 3.720 12 O -0.379 6.379 13 N -0.345 5.345 14 C -0.018 4.018 15 C -0.170 4.170 16 C -0.172 4.172 17 C 0.060 3.940 18 H 0.082 0.918 19 N -0.315 5.315 20 C 0.018 3.982 21 C -0.380 4.380 22 H 0.088 0.912 23 C -0.199 4.199 24 N -0.554 5.554 25 Si 0.734 3.266 26 H -0.215 1.215 27 H -0.217 1.217 28 H -0.206 1.206 29 C -0.022 4.022 30 H 0.072 0.928 31 H 0.070 0.930 32 H 0.071 0.929 33 H 0.080 0.920 34 H 0.081 0.919 35 H 0.078 0.922 36 H 0.079 0.921 37 H 0.115 0.885 38 H 0.095 0.905 39 H 0.229 0.771 40 H 0.218 0.782 41 H 0.244 0.756 42 H 0.084 0.916 43 H 0.095 0.905 44 H 0.087 0.913 45 H 0.083 0.917 46 H 0.083 0.917 47 H 0.077 0.923 48 H 0.044 0.956 49 H 0.017 0.983 50 H 0.066 0.934 51 H 0.062 0.938 52 H 0.076 0.924 53 H 0.107 0.893 Dipole moment (debyes) X Y Z Total from point charges -25.423 4.091 -1.676 25.805 hybrid contribution 0.366 0.087 -0.400 0.549 sum -25.058 4.179 -2.076 25.488 Atomic orbital electron populations 1.21764 0.96043 1.01483 1.01529 1.21520 0.95543 0.96916 1.02353 1.21539 0.94657 0.96931 1.01686 1.22057 0.95726 0.94620 1.05218 1.20742 0.92745 0.95895 0.86067 0.87742 1.44692 1.56721 1.33330 1.04312 1.15850 0.79626 0.83313 0.80499 1.42973 1.58939 1.34429 1.07809 1.91001 1.39606 1.26859 1.85699 1.20783 0.90317 0.77677 0.83174 1.90766 1.64138 1.47108 1.35865 1.48266 1.07834 1.72110 1.06314 1.21767 0.94418 0.98408 0.87186 1.21908 0.97766 0.97344 0.99964 1.22074 0.93005 1.02067 1.00044 1.20596 0.85025 0.95415 0.92977 0.91786 1.44001 1.00514 1.29721 1.57262 1.20799 0.94112 0.90714 0.92538 1.19259 0.88209 0.94608 1.35969 0.91183 1.24888 0.97424 0.96286 1.01282 1.70121 1.11845 1.18451 1.54984 0.86266 0.80446 0.82156 0.77774 1.21485 1.21653 1.20621 1.22458 0.77037 0.99815 1.02929 0.92843 0.92988 0.92893 0.91963 0.91851 0.92212 0.92079 0.88548 0.90470 0.77060 0.78228 0.75576 0.91634 0.90486 0.91324 0.91684 0.91732 0.92306 0.95600 0.98299 0.93398 0.93837 0.92365 0.89277 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 -0.15 -1.02 9.91 37.16 0.37 -0.65 16 2 C -0.13 -1.03 5.93 -26.73 -0.16 -1.19 16 3 C -0.11 -0.89 5.10 -26.73 -0.14 -1.03 16 4 C -0.14 -1.53 4.21 -26.73 -0.11 -1.64 16 5 C 0.16 1.77 2.15 -69.09 -0.15 1.62 16 6 H 0.10 0.82 6.80 -51.92 -0.35 0.47 16 7 N -0.73 -7.57 4.65 -59.81 -0.28 -7.85 16 8 C 0.71 9.57 7.59 -86.92 -0.66 8.91 16 9 N -0.87 -7.74 8.88 27.63 0.25 -7.50 16 10 O -0.56 -10.66 13.03 -18.20 -0.24 -10.90 16 11 C 0.50 8.34 6.69 -10.99 -0.07 8.27 16 12 O -0.51 -11.16 13.09 -17.93 -0.23 -11.39 16 13 N -0.61 -9.76 2.97 -172.79 -0.51 -10.27 16 14 C 0.11 1.21 5.76 -3.71 -0.02 1.19 16 15 C -0.13 -1.62 6.08 -26.61 -0.16 -1.78 16 16 C -0.13 -2.21 5.13 -26.69 -0.14 -2.34 16 17 C 0.17 3.57 2.74 -67.83 -0.19 3.39 16 18 H 0.06 1.46 7.83 -51.93 -0.41 1.05 16 19 N -0.59 -15.19 2.82 -173.37 -0.49 -15.68 16 20 C 0.16 4.06 7.92 59.84 0.47 4.53 16 21 C -0.25 -7.16 9.66 -15.06 -0.15 -7.31 16 22 H 0.07 1.98 7.78 -52.49 -0.41 1.57 16 23 C 0.00 -0.03 5.05 -17.43 -0.09 -0.12 16 24 N -0.91 -27.27 10.54 55.49 0.58 -26.68 16 25 Si 0.90 22.71 29.58 -169.99 -5.03 17.68 16 26 H -0.29 -7.29 7.11 56.52 0.40 -6.89 16 27 H -0.29 -7.29 7.11 56.52 0.40 -6.88 16 28 H -0.28 -6.89 7.11 56.52 0.40 -6.48 16 29 C 0.10 2.05 5.79 -3.73 -0.02 2.03 16 30 H 0.05 0.32 8.14 -51.93 -0.42 -0.10 16 31 H 0.05 0.34 8.14 -51.93 -0.42 -0.08 16 32 H 0.05 0.34 8.14 -51.93 -0.42 -0.08 16 33 H 0.06 0.58 8.14 -51.93 -0.42 0.16 16 34 H 0.06 0.51 8.14 -51.93 -0.42 0.09 16 35 H 0.06 0.38 8.14 -51.93 -0.42 -0.04 16 36 H 0.06 0.50 7.75 -51.93 -0.40 0.10 16 37 H 0.10 1.45 6.04 -51.93 -0.31 1.14 16 38 H 0.08 0.84 6.97 -51.92 -0.36 0.47 16 39 H 0.40 2.52 8.84 -40.82 -0.36 2.16 16 40 H 0.39 1.98 8.84 -40.82 -0.36 1.62 16 41 H 0.41 3.50 8.93 -40.82 -0.36 3.14 16 42 H 0.07 0.69 8.14 -51.93 -0.42 0.27 16 43 H 0.08 0.65 4.84 -51.93 -0.25 0.40 16 44 H 0.07 0.68 8.14 -51.93 -0.42 0.25 16 45 H 0.06 0.84 8.14 -51.93 -0.42 0.41 16 46 H 0.06 1.14 8.14 -51.93 -0.42 0.71 16 47 H 0.06 0.97 6.71 -51.93 -0.35 0.62 16 48 H 0.03 0.70 7.50 -51.93 -0.39 0.31 16 49 H 0.00 -0.03 6.45 -51.93 -0.34 -0.37 16 50 H 0.05 1.29 6.99 -51.93 -0.36 0.92 16 51 H 0.25 7.32 8.31 -40.82 -0.34 6.98 16 52 H 0.06 1.17 7.51 -51.93 -0.39 0.78 16 53 H 0.09 2.18 7.01 -51.93 -0.36 1.82 16 LS Contribution 403.13 15.07 6.08 6.08 Total: -1.00 -37.89 403.13 -10.22 -48.12 By element: Atomic # 1 Polarization: 13.66 SS G_CDS: -9.14 Total: 4.52 kcal Atomic # 6 Polarization: 15.09 SS G_CDS: -1.21 Total: 13.88 kcal Atomic # 7 Polarization: -67.53 SS G_CDS: -0.45 Total: -67.99 kcal Atomic # 8 Polarization: -21.81 SS G_CDS: -0.47 Total: -22.29 kcal Atomic # 14 Polarization: 22.71 SS G_CDS: -5.03 Total: 17.68 kcal Total LS contribution 6.08 Total: 6.08 kcal Total: -37.89 -10.22 -48.12 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. ZINC001714454489.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 1.636 kcal (2) G-P(sol) polarization free energy of solvation -37.895 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -36.259 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -10.221 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -48.116 kcal (6) G-S(sol) free energy of system = (1) + (5) -46.480 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.93 seconds