Wall clock time and date at job start Sat Apr 11 2020 06:10:59 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 1.53000 * 1 3 3 O 1.42898 * 109.46913 * 2 1 4 4 C 1.42902 * 114.00042 * 180.02562 * 3 2 1 5 5 H 1.08992 * 110.65585 * 26.80290 * 4 3 2 6 6 C 1.54598 * 110.82883 * 263.56041 * 4 3 2 7 7 N 1.48122 * 103.42047 * 204.44271 * 6 4 3 8 8 C 1.34777 * 127.03502 * 219.28489 * 7 6 4 9 9 O 1.21283 * 119.99750 * 179.68542 * 8 7 6 10 10 C 1.50702 * 119.99928 * 359.96635 * 8 7 6 11 11 C 1.52996 * 109.47159 * 179.72352 * 10 8 7 12 12 C 1.52994 * 109.47118 * 179.97438 * 11 10 8 13 13 H 1.08993 * 110.43880 * 303.90385 * 12 11 10 14 14 C 1.54815 * 110.48750 * 181.21702 * 12 11 10 15 15 C 1.54995 * 102.09247 * 220.44365 * 14 12 11 16 16 O 1.44377 * 103.49119 * 37.02814 * 15 14 12 17 17 C 1.43742 * 106.97333 * 319.93692 * 16 15 14 18 18 C 1.47487 * 105.92931 * 39.02856 * 7 6 4 19 19 C 1.54002 * 107.08545 * 334.77652 * 18 7 6 20 20 H 1.09001 * 110.32996 * 120.19805 * 19 18 7 21 21 C 1.53003 * 110.32654 * 242.41494 * 19 18 7 22 22 N 1.46494 * 109.47016 * 293.54514 * 21 19 18 23 23 C 1.36941 * 119.99975 * 179.97438 * 22 21 19 24 24 H 1.08006 * 119.99840 * 0.02562 * 23 22 21 25 25 C 1.38811 * 120.00105 * 179.97438 * 23 22 21 26 26 N 1.31621 * 119.99974 * 0.02562 * 25 23 22 27 27 Si 1.86797 * 119.99898 * 180.02562 * 25 23 22 28 28 H 1.48498 * 109.47379 * 90.00378 * 27 25 23 29 29 H 1.48503 * 109.47230 * 210.00244 * 27 25 23 30 30 H 1.48505 * 109.47465 * 330.00060 * 27 25 23 31 31 H 1.09003 * 109.46978 * 299.99800 * 1 2 3 32 32 H 1.08999 * 109.47485 * 60.00248 * 1 2 3 33 33 H 1.08997 * 109.47055 * 180.02562 * 1 2 3 34 34 H 1.09003 * 109.46978 * 240.00200 * 2 1 3 35 35 H 1.08999 * 109.47485 * 119.99752 * 2 1 3 36 36 H 1.09004 * 110.61909 * 85.93384 * 6 4 3 37 37 H 1.09002 * 110.54980 * 322.92515 * 6 4 3 38 38 H 1.09004 * 109.46965 * 299.72211 * 10 8 7 39 39 H 1.08994 * 109.46990 * 59.72065 * 10 8 7 40 40 H 1.09004 * 109.47066 * 299.99797 * 11 10 8 41 41 H 1.09000 * 109.47234 * 59.99288 * 11 10 8 42 42 H 1.08999 * 110.91027 * 338.64486 * 14 12 11 43 43 H 1.08998 * 110.90529 * 102.24484 * 14 12 11 44 44 H 1.08997 * 110.61468 * 278.52105 * 15 14 12 45 45 H 1.09002 * 110.61583 * 155.52666 * 15 14 12 46 46 H 1.09007 * 109.87958 * 267.09507 * 17 16 15 47 47 H 1.08998 * 109.88358 * 145.93970 * 17 16 15 48 48 H 1.09001 * 109.91358 * 94.14097 * 18 7 6 49 49 H 1.08998 * 109.90865 * 215.22143 * 18 7 6 50 50 H 1.09002 * 109.47325 * 53.54563 * 21 19 18 51 51 H 1.09001 * 109.47351 * 173.54485 * 21 19 18 52 52 H 0.97000 * 120.00609 * 0.02562 * 22 21 19 53 53 H 0.97003 * 119.99468 * 180.02562 * 26 25 23 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 2.0063 1.3473 0.0000 4 6 3.4308 1.4602 -0.0006 5 1 3.8858 0.5832 -0.4608 6 6 3.9666 1.6649 1.4351 7 7 5.2650 2.3458 1.2236 8 6 6.4113 2.1363 1.9008 9 8 7.4078 2.7660 1.6156 10 6 6.4563 1.1151 3.0081 11 6 7.8651 1.0700 3.6033 12 6 7.9106 0.0337 4.7279 13 1 7.1542 0.2554 5.4806 14 6 9.3196 -0.0097 5.3680 15 6 9.5319 -1.5299 5.5830 16 8 8.9149 -2.1239 4.4207 17 6 7.7091 -1.3855 4.1621 18 6 5.0484 3.2955 0.1161 19 6 3.8774 2.7519 -0.7235 20 1 3.0612 3.4740 -0.7473 21 6 4.3461 2.4309 -2.1442 22 7 4.7176 3.6721 -2.8279 23 6 5.1708 3.6330 -4.1196 24 1 5.2539 2.6871 -4.6343 25 6 5.5223 4.8091 -4.7677 26 7 5.4206 5.9618 -4.1406 27 14 6.1398 4.7558 -6.5299 28 1 4.9898 4.8785 -7.4613 29 1 7.0835 5.8795 -6.7580 30 1 6.8371 3.4671 -6.7714 31 1 -0.3633 0.5138 0.8900 32 1 -0.3634 0.5138 -0.8900 33 1 -0.3633 -1.0276 0.0005 34 1 1.8933 -0.5138 -0.8900 35 1 1.8934 -0.5138 0.8900 36 1 4.1120 0.7052 1.9311 37 1 3.2897 2.2974 2.0095 38 1 5.7424 1.3896 3.7848 39 1 6.1991 0.1342 2.6085 40 1 8.5790 0.7955 2.8267 41 1 8.1223 2.0510 4.0029 42 1 10.0687 0.3952 4.6875 43 1 9.3314 0.5231 6.3188 44 1 9.0338 -1.8619 6.4939 45 1 10.5950 -1.7679 5.6171 46 1 6.8663 -1.8662 4.6590 47 1 7.5288 -1.3342 3.0884 48 1 4.7952 4.2782 0.5139 49 1 5.9478 3.3634 -0.4959 50 1 5.2099 1.7675 -2.1006 51 1 3.5399 1.9421 -2.6911 52 1 4.6434 4.5216 -2.3656 53 1 5.6659 6.7837 -4.5937 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 ZINC001691743447.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 06:10:59 Heat of formation + Delta-G solvation = -123.555581 kcal Electronic energy + Delta-G solvation = -30328.415013 eV Core-core repulsion = 26200.094983 eV Total energy + Delta-G solvation = -4128.320031 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 1.37 seconds Orbital eigenvalues (eV) -40.34066 -39.73671 -38.52376 -36.65372 -34.73039 -34.64742 -32.31085 -31.37580 -31.20033 -29.73241 -28.77684 -28.23293 -25.91600 -24.42667 -23.59146 -22.93924 -22.51775 -21.81585 -20.63062 -19.95753 -19.18229 -17.47849 -17.26869 -17.05095 -16.72701 -16.22007 -15.87321 -15.66930 -15.34506 -15.17423 -14.71223 -14.55664 -14.22089 -13.80306 -13.64794 -13.51608 -13.38490 -13.21208 -13.02952 -12.76219 -12.66483 -12.52428 -12.33307 -11.95893 -11.81370 -11.77542 -11.67818 -11.52239 -11.32895 -11.12407 -11.06926 -11.01822 -10.86550 -10.75130 -10.71032 -10.40536 -10.08456 -9.98650 -9.84183 -9.72317 -9.50893 -8.86723 -8.59537 -6.91443 -5.74038 -3.03280 2.66235 2.86203 3.46137 3.50853 3.52975 3.59521 3.61596 4.12662 4.23937 4.45266 4.50810 4.53938 4.62380 4.75094 4.79046 4.83409 4.88905 4.91970 4.98026 5.02375 5.09260 5.14800 5.21723 5.22469 5.28609 5.35206 5.37028 5.38017 5.43557 5.49300 5.57033 5.58382 5.66786 5.69847 5.72277 5.78065 5.87412 5.93541 5.99587 6.03805 6.08802 6.22171 6.32937 6.38327 6.53188 6.69358 6.76520 7.19610 7.57192 7.71844 8.20619 8.44182 9.55609 10.11451 10.46358 11.48752 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.008781 B = 0.002645 C = 0.002187 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 3187.816900 B =10584.358328 C =12799.944647 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 0.055 3.945 3 O -0.370 6.370 4 C 0.083 3.917 5 H 0.078 0.922 6 C 0.082 3.918 7 N -0.619 5.619 8 C 0.528 3.472 9 O -0.533 6.533 10 C -0.137 4.137 11 C -0.096 4.096 12 C -0.123 4.123 13 H 0.084 0.916 14 C -0.152 4.152 15 C 0.045 3.955 16 O -0.379 6.379 17 C 0.047 3.953 18 C 0.113 3.887 19 C -0.104 4.104 20 H 0.098 0.902 21 C 0.164 3.836 22 N -0.731 5.731 23 C -0.240 4.240 24 H 0.070 0.930 25 C -0.013 4.013 26 N -0.932 5.932 27 Si 0.907 3.093 28 H -0.290 1.290 29 H -0.291 1.291 30 H -0.282 1.282 31 H 0.061 0.939 32 H 0.065 0.935 33 H 0.068 0.932 34 H 0.051 0.949 35 H 0.046 0.954 36 H 0.078 0.922 37 H 0.083 0.917 38 H 0.092 0.908 39 H 0.091 0.909 40 H 0.076 0.924 41 H 0.076 0.924 42 H 0.082 0.918 43 H 0.080 0.920 44 H 0.059 0.941 45 H 0.092 0.908 46 H 0.058 0.942 47 H 0.086 0.914 48 H 0.068 0.932 49 H 0.094 0.906 50 H 0.019 0.981 51 H 0.024 0.976 52 H 0.385 0.615 53 H 0.255 0.745 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -3.064 -16.130 22.604 27.938 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 -0.209 4.209 2 C -0.022 4.022 3 O -0.288 6.288 4 C 0.024 3.976 5 H 0.096 0.904 6 C -0.042 4.042 7 N -0.355 5.355 8 C 0.317 3.683 9 O -0.410 6.410 10 C -0.177 4.177 11 C -0.134 4.134 12 C -0.142 4.142 13 H 0.102 0.898 14 C -0.189 4.189 15 C -0.031 4.031 16 O -0.298 6.298 17 C -0.030 4.030 18 C -0.009 4.009 19 C -0.124 4.124 20 H 0.117 0.883 21 C 0.036 3.964 22 N -0.375 5.375 23 C -0.371 4.371 24 H 0.088 0.912 25 C -0.209 4.209 26 N -0.580 5.580 27 Si 0.739 3.261 28 H -0.217 1.217 29 H -0.217 1.217 30 H -0.208 1.208 31 H 0.081 0.919 32 H 0.084 0.916 33 H 0.087 0.913 34 H 0.069 0.931 35 H 0.064 0.936 36 H 0.096 0.904 37 H 0.101 0.899 38 H 0.110 0.890 39 H 0.109 0.891 40 H 0.095 0.905 41 H 0.094 0.906 42 H 0.100 0.900 43 H 0.099 0.901 44 H 0.077 0.923 45 H 0.110 0.890 46 H 0.076 0.924 47 H 0.105 0.895 48 H 0.086 0.914 49 H 0.113 0.887 50 H 0.037 0.963 51 H 0.041 0.959 52 H 0.218 0.782 53 H 0.065 0.935 Dipole moment (debyes) X Y Z Total from point charges -2.422 -15.876 22.211 27.409 hybrid contribution 0.158 0.291 -0.711 0.784 sum -2.264 -15.585 21.500 26.651 Atomic orbital electron populations 1.21739 0.93768 1.02075 1.03282 1.22537 0.95638 0.83983 1.00024 1.87974 1.19899 1.26199 1.94711 1.23086 0.81281 0.99154 0.94108 0.90362 1.22877 0.85306 0.97807 0.98205 1.48743 1.09596 1.41230 1.35927 1.20278 0.81380 0.83862 0.82784 1.90753 1.33263 1.49693 1.67267 1.21718 0.99955 0.98938 0.97123 1.21402 0.95551 0.99290 0.97123 1.22612 0.97916 0.95534 0.98129 0.89753 1.23214 0.96960 0.97027 1.01734 1.23558 0.98857 0.91777 0.88946 1.88889 1.37823 1.56011 1.47074 1.23348 0.87798 0.90360 1.01455 1.22176 0.99745 0.91743 0.87246 1.22406 0.97562 0.96355 0.96034 0.88345 1.20678 0.96403 0.90757 0.88547 1.42327 1.78948 1.03193 1.13043 1.19193 1.35714 0.93046 0.89193 0.91229 1.24742 1.02301 0.95354 0.98476 1.69660 1.54516 0.97121 1.36735 0.86184 0.78240 0.76946 0.84779 1.21725 1.21743 1.20773 0.91948 0.91597 0.91282 0.93093 0.93604 0.90351 0.89923 0.88975 0.89057 0.90490 0.90564 0.89960 0.90118 0.92289 0.89004 0.92416 0.89541 0.91399 0.88736 0.96319 0.95858 0.78162 0.93477 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 -0.15 -1.24 10.28 37.16 0.38 -0.86 16 2 C 0.05 0.52 6.49 37.16 0.24 0.76 16 3 O -0.37 -4.63 10.09 -35.23 -0.36 -4.98 16 4 C 0.08 1.05 3.09 -25.04 -0.08 0.97 16 5 H 0.08 0.95 7.54 -51.93 -0.39 0.56 16 6 C 0.08 0.87 6.65 -2.31 -0.02 0.85 16 7 N -0.62 -8.56 3.29 -169.97 -0.56 -9.12 16 8 C 0.53 7.51 7.89 -10.98 -0.09 7.42 16 9 O -0.53 -10.03 16.32 5.55 0.09 -9.93 16 10 C -0.14 -1.25 4.46 -27.88 -0.12 -1.37 16 11 C -0.10 -0.89 3.73 -26.74 -0.10 -0.99 16 12 C -0.12 -0.88 3.08 -89.09 -0.27 -1.15 16 13 H 0.08 0.48 8.14 -51.93 -0.42 0.06 16 14 C -0.15 -1.03 6.71 -24.72 -0.17 -1.20 16 15 C 0.05 0.32 7.72 38.21 0.29 0.62 16 16 O -0.38 -3.85 11.52 -35.23 -0.41 -4.25 16 17 C 0.05 0.37 6.93 37.73 0.26 0.63 16 18 C 0.11 1.89 6.31 -2.98 -0.02 1.87 16 19 C -0.10 -1.69 2.83 -89.25 -0.25 -1.94 16 20 H 0.10 1.67 8.07 -51.93 -0.42 1.25 16 21 C 0.16 3.32 5.34 -4.04 -0.02 3.29 16 22 N -0.73 -18.70 5.33 -59.91 -0.32 -19.02 16 23 C -0.24 -6.85 9.99 -15.06 -0.15 -7.00 16 24 H 0.07 1.93 7.83 -52.48 -0.41 1.51 16 25 C -0.01 -0.37 5.50 -17.43 -0.10 -0.47 16 26 N -0.93 -28.65 13.06 55.49 0.72 -27.92 16 27 Si 0.91 22.86 29.55 -169.99 -5.02 17.83 16 28 H -0.29 -7.23 7.11 56.52 0.40 -6.83 16 29 H -0.29 -7.39 7.11 56.52 0.40 -6.99 16 30 H -0.28 -6.92 7.11 56.52 0.40 -6.52 16 31 H 0.06 0.50 8.14 -51.93 -0.42 0.07 16 32 H 0.06 0.60 8.14 -51.93 -0.42 0.18 16 33 H 0.07 0.43 8.14 -51.93 -0.42 0.01 16 34 H 0.05 0.48 8.11 -51.93 -0.42 0.06 16 35 H 0.05 0.34 8.14 -51.93 -0.42 -0.08 16 36 H 0.08 0.60 7.23 -51.93 -0.38 0.23 16 37 H 0.08 0.83 8.14 -51.93 -0.42 0.41 16 38 H 0.09 0.64 8.14 -51.93 -0.42 0.22 16 39 H 0.09 0.68 6.62 -51.93 -0.34 0.33 16 40 H 0.08 0.86 8.10 -51.93 -0.42 0.44 16 41 H 0.08 0.77 8.10 -51.93 -0.42 0.35 16 42 H 0.08 0.63 7.87 -51.93 -0.41 0.22 16 43 H 0.08 0.43 8.14 -51.93 -0.42 0.01 16 44 H 0.06 0.34 8.14 -51.93 -0.42 -0.08 16 45 H 0.09 0.56 8.14 -51.93 -0.42 0.14 16 46 H 0.06 0.38 8.14 -51.93 -0.42 -0.05 16 47 H 0.09 0.70 6.70 -51.93 -0.35 0.35 16 48 H 0.07 1.12 8.14 -51.93 -0.42 0.70 16 49 H 0.09 1.93 7.49 -51.93 -0.39 1.54 16 50 H 0.02 0.39 8.14 -51.93 -0.42 -0.03 16 51 H 0.02 0.48 8.14 -51.93 -0.42 0.06 16 52 H 0.38 10.30 7.51 -40.82 -0.31 10.00 16 53 H 0.26 7.59 8.31 -40.82 -0.34 7.25 16 LS Contribution 420.97 15.07 6.34 6.34 Total: -1.00 -34.80 420.97 -9.42 -44.21 By element: Atomic # 1 Polarization: 15.10 SS G_CDS: -9.71 Total: 5.39 kcal Atomic # 6 Polarization: 1.66 SS G_CDS: -0.20 Total: 1.45 kcal Atomic # 7 Polarization: -55.91 SS G_CDS: -0.15 Total: -56.06 kcal Atomic # 8 Polarization: -18.50 SS G_CDS: -0.67 Total: -19.17 kcal Atomic # 14 Polarization: 22.86 SS G_CDS: -5.02 Total: 17.83 kcal Total LS contribution 6.34 Total: 6.34 kcal Total: -34.80 -9.42 -44.21 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. ZINC001691743447.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 -79.342 kcal (2) G-P(sol) polarization free energy of solvation -34.795 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -114.137 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.418 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -44.213 kcal (6) G-S(sol) free energy of system = (1) + (5) -123.556 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.37 seconds