Wall clock time and date at job start Tue Mar 31 2020 23:54:58 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 O 1.42900 * 1 3 3 C 1.42897 * 114.00171 * 2 1 4 4 C 1.52999 * 109.47253 * 180.02562 * 3 2 1 5 5 C 1.53002 * 109.47013 * 176.88794 * 4 3 2 6 6 N 1.46497 * 109.46078 * 297.42770 * 5 4 3 7 7 C 1.34776 * 119.99639 * 297.56391 * 6 5 4 8 8 O 1.21277 * 120.00122 * 4.09153 * 7 6 5 9 9 C 1.50703 * 120.00060 * 184.08360 * 7 6 5 10 10 H 1.08999 * 110.74956 * 62.02423 * 9 7 6 11 11 C 1.54384 * 110.84869 * 298.55144 * 9 7 6 12 12 O 1.43235 * 107.58713 * 220.44786 * 11 9 7 13 13 C 1.43650 * 109.97382 * 358.29419 * 12 11 9 14 14 H 1.09004 * 110.30752 * 265.51172 * 13 12 11 15 15 C 1.52996 * 110.31342 * 143.33938 * 13 12 11 16 16 C 1.54944 * 105.13574 * 24.41993 * 13 12 11 17 17 C 1.53036 * 109.46103 * 177.46450 * 5 4 3 18 18 C 1.53194 * 109.31597 * 178.61603 * 17 5 4 19 19 N 1.46925 * 108.77289 * 54.63263 * 18 17 5 20 20 C 1.36943 * 120.62819 * 126.37233 * 19 18 17 21 21 H 1.07994 * 120.00088 * 208.24874 * 20 19 18 22 22 C 1.38813 * 119.99656 * 28.24999 * 20 19 18 23 23 N 1.31618 * 120.00206 * 25.51908 * 22 20 19 24 24 Si 1.86798 * 119.99853 * 205.51458 * 22 20 19 25 25 H 1.48495 * 109.47377 * 94.99075 * 24 22 20 26 26 H 1.48494 * 109.47232 * 214.99330 * 24 22 20 27 27 H 1.48501 * 109.47096 * 334.99032 * 24 22 20 28 28 C 1.46923 * 118.74198 * 306.39061 * 19 18 17 29 29 C 1.53042 * 109.46089 * 57.39744 * 5 4 3 30 30 H 1.09000 * 109.47203 * 60.00164 * 1 2 3 31 31 H 1.09002 * 109.46849 * 179.97438 * 1 2 3 32 32 H 1.08996 * 109.46981 * 299.99477 * 1 2 3 33 33 H 1.09002 * 109.46776 * 300.00142 * 3 2 1 34 34 H 1.09000 * 109.47135 * 59.99993 * 3 2 1 35 35 H 1.09000 * 109.46799 * 296.88381 * 4 3 2 36 36 H 1.08998 * 109.47164 * 56.88834 * 4 3 2 37 37 H 0.97003 * 120.00407 * 117.56932 * 6 5 4 38 38 H 1.08995 * 109.83012 * 339.96465 * 11 9 7 39 39 H 1.09000 * 109.82910 * 100.85170 * 11 9 7 40 40 H 1.09000 * 109.47106 * 61.45195 * 15 13 12 41 41 H 1.08999 * 109.47493 * 181.44979 * 15 13 12 42 42 H 1.08996 * 109.47075 * 301.45067 * 15 13 12 43 43 H 1.09001 * 111.13009 * 205.63680 * 16 13 12 44 44 H 1.09001 * 111.12432 * 81.48002 * 16 13 12 45 45 H 1.09004 * 109.49825 * 298.56530 * 17 5 4 46 46 H 1.09000 * 109.49762 * 58.65985 * 17 5 4 47 47 H 1.09001 * 109.58114 * 294.85031 * 18 17 5 48 48 H 1.08996 * 109.70503 * 174.49237 * 18 17 5 49 49 H 0.97006 * 120.00066 * 180.02562 * 23 22 20 50 50 H 1.08993 * 109.59088 * 293.82149 * 28 19 18 51 51 H 1.08998 * 109.70445 * 173.46551 * 28 19 18 52 52 H 1.09005 * 109.50057 * 301.33842 * 29 5 4 53 53 H 1.09000 * 109.50093 * 61.39951 * 29 5 4 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 8 1.4290 0.0000 0.0000 3 6 2.0103 1.3054 0.0000 4 6 3.5355 1.1846 -0.0006 5 6 4.1576 2.5802 -0.0790 6 7 3.7690 3.2178 -1.3394 7 6 4.1435 2.6727 -2.5137 8 8 4.7381 1.6158 -2.5295 9 6 3.8234 3.3765 -3.8073 10 1 4.3131 4.3494 -3.8490 11 6 2.2974 3.5211 -3.9911 12 8 2.0011 3.2636 -5.3686 13 6 3.2151 3.0049 -6.0916 14 1 3.5823 3.9210 -6.5544 15 6 2.9817 1.9286 -7.1537 16 6 4.2207 2.5002 -5.0264 17 6 5.6821 2.4632 -0.0159 18 6 6.3027 3.8592 -0.1293 19 7 5.7202 4.7213 0.9081 20 6 6.5251 5.4066 1.7786 21 1 6.1662 5.6514 2.7673 22 6 7.8024 5.7868 1.3900 23 7 8.0781 5.9601 0.1148 24 14 9.1299 6.0524 2.6771 25 1 9.9291 4.8100 2.8278 26 1 10.0178 7.1635 2.2504 27 1 8.4979 6.3951 3.9765 28 6 4.2578 4.8337 0.9942 29 6 3.6603 3.4267 1.0950 30 1 -0.3633 0.5138 -0.8900 31 1 -0.3633 -1.0277 -0.0005 32 1 -0.3633 0.5137 0.8900 33 1 1.6886 1.8463 -0.8900 34 1 1.6886 1.8463 0.8900 35 1 3.8613 0.6925 0.9157 36 1 3.8530 0.5964 -0.8616 37 1 3.2422 4.0322 -1.3288 38 1 1.7789 2.7993 -3.3601 39 1 1.9875 4.5324 -3.7277 40 1 2.2355 2.2781 -7.8672 41 1 3.9164 1.7249 -7.6761 42 1 2.6269 1.0162 -6.6745 43 1 5.2484 2.6956 -5.3324 44 1 4.0705 1.4415 -4.8147 45 1 5.9734 2.0116 0.9325 46 1 6.0336 1.8408 -0.8388 47 1 6.0878 4.2756 -1.1135 48 1 7.3814 3.7945 0.0126 49 1 8.9708 6.2253 -0.1567 50 1 3.8763 5.3297 0.1017 51 1 3.9850 5.4108 1.8777 52 1 2.5725 3.4903 1.0628 53 1 3.9700 2.9658 2.0330 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 ZINC001151198732.mol2 53 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 23:54:58 Heat of formation + Delta-G solvation = -111.619035 kcal Electronic energy + Delta-G solvation = -32556.577535 eV Core-core repulsion = 28428.775112 eV Total energy + Delta-G solvation = -4127.802423 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 1.48 seconds Orbital eigenvalues (eV) -40.72370 -39.37091 -37.81231 -37.20439 -34.60227 -32.75905 -32.34747 -31.61986 -31.09621 -30.17995 -28.88050 -26.57225 -26.20489 -24.87718 -23.56848 -23.25372 -22.06750 -21.33036 -20.64578 -19.99769 -18.71679 -17.44080 -17.05293 -16.73493 -16.36679 -15.98427 -15.61273 -15.11916 -14.96387 -14.76880 -14.57622 -14.37244 -13.93622 -13.79562 -13.60435 -13.47481 -13.23170 -13.10795 -12.77842 -12.62803 -12.42814 -12.39902 -11.95530 -11.70715 -11.54010 -11.45611 -11.38547 -11.20263 -11.11845 -11.10023 -10.97381 -10.89903 -10.74446 -10.41020 -10.32123 -10.04428 -9.82333 -9.76483 -9.65022 -9.47325 -9.11526 -8.67818 -8.46535 -6.74193 -5.85772 -3.23074 2.82061 3.33328 3.36256 3.44860 3.45167 3.64510 3.76628 4.22915 4.47412 4.63272 4.74161 4.90203 4.99037 5.02344 5.10755 5.13382 5.20358 5.25124 5.27278 5.30102 5.34760 5.40987 5.46471 5.47792 5.52599 5.53299 5.56423 5.58121 5.73858 5.74584 5.85388 5.94899 5.94972 6.09328 6.10295 6.15196 6.27659 6.33917 6.45667 6.60262 6.62484 6.72500 6.83085 6.83227 6.98878 7.17811 7.27514 7.53281 7.78463 7.80328 8.38640 8.47415 9.14918 9.80279 10.37747 11.22297 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.010136 B = 0.003900 C = 0.003062 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2761.703034 B = 7177.366828 C = 9142.356460 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.032 3.968 2 O -0.393 6.393 3 C 0.066 3.934 4 C -0.130 4.130 5 C 0.195 3.805 6 N -0.711 5.711 7 C 0.530 3.470 8 O -0.531 6.531 9 C -0.150 4.150 10 H 0.114 0.886 11 C 0.065 3.935 12 O -0.379 6.379 13 C 0.074 3.926 14 H 0.073 0.927 15 C -0.150 4.150 16 C -0.129 4.129 17 C -0.150 4.150 18 C 0.181 3.819 19 N -0.588 5.588 20 C -0.262 4.262 21 H 0.065 0.935 22 C 0.010 3.990 23 N -0.891 5.891 24 Si 0.893 3.107 25 H -0.287 1.287 26 H -0.292 1.292 27 H -0.278 1.278 28 C 0.147 3.853 29 C -0.141 4.141 30 H 0.038 0.962 31 H 0.082 0.918 32 H 0.039 0.961 33 H 0.044 0.956 34 H 0.049 0.951 35 H 0.074 0.926 36 H 0.091 0.909 37 H 0.397 0.603 38 H 0.070 0.930 39 H 0.076 0.924 40 H 0.061 0.939 41 H 0.070 0.930 42 H 0.062 0.938 43 H 0.088 0.912 44 H 0.092 0.908 45 H 0.063 0.937 46 H 0.073 0.927 47 H 0.017 0.983 48 H 0.074 0.926 49 H 0.253 0.747 50 H 0.014 0.986 51 H 0.056 0.944 52 H 0.057 0.943 53 H 0.077 0.923 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -14.175 -7.018 -8.228 17.829 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 -0.064 4.064 2 O -0.312 6.312 3 C -0.011 4.011 4 C -0.168 4.168 5 C 0.109 3.891 6 N -0.362 5.362 7 C 0.316 3.684 8 O -0.407 6.407 9 C -0.172 4.172 10 H 0.132 0.868 11 C -0.012 4.012 12 O -0.299 6.299 13 C 0.017 3.983 14 H 0.090 0.910 15 C -0.207 4.207 16 C -0.166 4.166 17 C -0.190 4.190 18 C 0.055 3.945 19 N -0.311 5.311 20 C -0.391 4.391 21 H 0.083 0.917 22 C -0.190 4.190 23 N -0.533 5.533 24 Si 0.723 3.277 25 H -0.214 1.214 26 H -0.219 1.219 27 H -0.203 1.203 28 C 0.020 3.980 29 C -0.181 4.181 30 H 0.056 0.944 31 H 0.100 0.900 32 H 0.057 0.943 33 H 0.062 0.938 34 H 0.067 0.933 35 H 0.092 0.908 36 H 0.109 0.891 37 H 0.232 0.768 38 H 0.088 0.912 39 H 0.094 0.906 40 H 0.080 0.920 41 H 0.089 0.911 42 H 0.082 0.918 43 H 0.107 0.893 44 H 0.111 0.889 45 H 0.081 0.919 46 H 0.092 0.908 47 H 0.035 0.965 48 H 0.092 0.908 49 H 0.063 0.937 50 H 0.031 0.969 51 H 0.075 0.925 52 H 0.075 0.925 53 H 0.096 0.904 Dipole moment (debyes) X Y Z Total from point charges -13.665 -7.859 -8.381 17.853 hybrid contribution 0.540 0.975 0.794 1.368 sum -13.125 -6.884 -7.587 16.650 Atomic orbital electron populations 1.22694 0.81614 1.02384 0.99738 1.87886 1.19210 1.28711 1.95369 1.22617 0.94714 0.84041 0.99702 1.21992 0.92326 0.98060 1.04420 1.20199 0.95822 0.90430 0.82614 1.46110 1.55529 1.29099 1.05467 1.19947 0.78760 0.85167 0.84541 1.90634 1.40771 1.22160 1.87174 1.22954 0.97774 1.01804 0.94634 0.86844 1.23020 0.92967 1.01309 0.83873 1.88401 1.30213 1.91719 1.19525 1.23032 0.84355 0.97881 0.93059 0.90955 1.21871 1.02319 0.98420 0.98113 1.23191 1.00223 1.01134 0.92100 1.22548 0.92775 1.01601 1.02047 1.20581 0.97880 0.85487 0.90525 1.44060 0.99160 1.50620 1.37254 1.19118 0.95634 1.31304 0.93080 0.91726 1.24957 0.99721 0.98751 0.95599 1.70147 1.20330 1.48269 1.14596 0.86421 0.82309 0.77374 0.81597 1.21415 1.21898 1.20317 1.20847 0.86300 0.92288 0.98551 1.22428 0.98880 0.99216 0.97567 0.94353 0.89951 0.94268 0.93818 0.93268 0.90781 0.89095 0.76819 0.91198 0.90624 0.91961 0.91092 0.91846 0.89350 0.88908 0.91861 0.90808 0.96460 0.90793 0.93687 0.96853 0.92532 0.92464 0.90436 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 20. 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 0.03 0.32 11.01 101.05 1.11 1.44 16 2 O -0.39 -5.47 10.70 -35.23 -0.38 -5.84 16 3 C 0.07 0.86 5.33 37.16 0.20 1.06 16 4 C -0.13 -1.95 4.51 -26.73 -0.12 -2.07 16 5 C 0.19 3.06 0.35 -131.78 -0.05 3.02 16 6 N -0.71 -10.13 3.31 -47.57 -0.16 -10.29 16 7 C 0.53 7.94 6.37 -10.98 -0.07 7.87 16 8 O -0.53 -9.51 11.98 5.56 0.07 -9.45 16 9 C -0.15 -1.83 3.40 -89.82 -0.31 -2.13 16 10 H 0.11 1.33 8.14 -51.93 -0.42 0.91 16 11 C 0.07 0.72 7.30 37.88 0.28 0.99 16 12 O -0.38 -4.63 11.04 -35.23 -0.39 -5.02 16 13 C 0.07 0.77 4.07 -25.71 -0.10 0.67 16 14 H 0.07 0.69 8.14 -51.93 -0.42 0.27 16 15 C -0.15 -1.33 9.62 37.16 0.36 -0.97 16 16 C -0.13 -1.49 5.65 -24.48 -0.14 -1.63 16 17 C -0.15 -2.89 4.63 -26.61 -0.12 -3.02 16 18 C 0.18 4.18 5.13 -3.71 -0.02 4.16 16 19 N -0.59 -13.87 2.98 -172.32 -0.51 -14.39 16 20 C -0.26 -6.97 9.51 -15.06 -0.14 -7.11 16 21 H 0.07 1.70 7.95 -52.49 -0.42 1.28 16 22 C 0.01 0.27 4.66 -17.43 -0.08 0.18 16 23 N -0.89 -25.46 11.80 55.49 0.65 -24.80 16 24 Si 0.89 21.37 29.62 -169.99 -5.04 16.33 16 25 H -0.29 -6.92 7.11 56.52 0.40 -6.52 16 26 H -0.29 -7.07 7.11 56.52 0.40 -6.67 16 27 H -0.28 -6.50 7.11 56.52 0.40 -6.10 16 28 C 0.15 2.76 6.24 -3.71 -0.02 2.74 16 29 C -0.14 -2.16 4.57 -26.61 -0.12 -2.28 16 30 H 0.04 0.35 8.14 -51.93 -0.42 -0.07 16 31 H 0.08 0.70 8.14 -51.93 -0.42 0.27 16 32 H 0.04 0.34 8.14 -51.93 -0.42 -0.08 16 33 H 0.04 0.55 7.59 -51.93 -0.39 0.16 16 34 H 0.05 0.59 6.53 -51.93 -0.34 0.25 16 35 H 0.07 1.12 8.14 -51.93 -0.42 0.70 16 36 H 0.09 1.57 6.15 -51.93 -0.32 1.25 16 37 H 0.40 4.99 7.29 -40.82 -0.30 4.69 16 38 H 0.07 0.77 7.81 -51.93 -0.41 0.37 16 39 H 0.08 0.71 8.14 -51.93 -0.42 0.28 16 40 H 0.06 0.52 8.14 -51.93 -0.42 0.09 16 41 H 0.07 0.52 8.14 -51.93 -0.42 0.10 16 42 H 0.06 0.59 8.14 -51.93 -0.42 0.17 16 43 H 0.09 0.98 8.14 -51.93 -0.42 0.55 16 44 H 0.09 1.20 7.38 -51.93 -0.38 0.82 16 45 H 0.06 1.24 8.14 -51.93 -0.42 0.82 16 46 H 0.07 1.49 6.17 -51.93 -0.32 1.17 16 47 H 0.02 0.42 7.68 -51.93 -0.40 0.02 16 48 H 0.07 1.97 6.35 -51.93 -0.33 1.64 16 49 H 0.25 7.04 8.31 -40.82 -0.34 6.70 16 50 H 0.01 0.25 6.99 -51.93 -0.36 -0.12 16 51 H 0.06 1.06 7.94 -51.93 -0.41 0.65 16 52 H 0.06 0.72 6.38 -51.93 -0.33 0.39 16 53 H 0.08 1.25 8.14 -51.93 -0.42 0.82 16 LS Contribution 401.44 15.07 6.05 6.05 Total: -1.00 -31.30 401.44 -8.40 -39.69 By element: Atomic # 1 Polarization: 14.16 SS G_CDS: -9.34 Total: 4.82 kcal Atomic # 6 Polarization: 2.25 SS G_CDS: 0.65 Total: 2.90 kcal Atomic # 7 Polarization: -49.46 SS G_CDS: -0.02 Total: -49.48 kcal Atomic # 8 Polarization: -19.62 SS G_CDS: -0.70 Total: -20.32 kcal Atomic # 14 Polarization: 21.37 SS G_CDS: -5.04 Total: 16.33 kcal Total LS contribution 6.05 Total: 6.05 kcal Total: -31.30 -8.40 -39.69 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. ZINC001151198732.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 -71.926 kcal (2) G-P(sol) polarization free energy of solvation -31.297 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -103.223 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.396 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -39.693 kcal (6) G-S(sol) free energy of system = (1) + (5) -111.619 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.48 seconds