Wall clock time and date at job start Wed Apr 1 2020 00:14:05 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 1.53007 * 1 3 3 H 1.09005 * 109.46960 * 2 1 4 4 C 1.50693 * 109.47258 * 240.00360 * 2 1 3 5 5 H 1.08005 * 119.99606 * 240.00355 * 4 2 1 6 6 C 1.37878 * 120.00684 * 59.99714 * 4 2 1 7 7 N 1.31515 * 119.99207 * 0.02562 * 6 4 2 8 8 Si 1.86794 * 120.00467 * 180.02562 * 6 4 2 9 9 H 1.48494 * 109.47127 * 180.02562 * 8 6 4 10 10 H 1.48498 * 109.47204 * 300.00456 * 8 6 4 11 11 H 1.48500 * 109.47083 * 60.00078 * 8 6 4 12 12 N 1.46495 * 109.47218 * 119.99812 * 2 1 3 13 13 C 1.46501 * 119.99890 * 60.00060 * 12 2 1 14 14 C 1.34779 * 120.00284 * 240.00601 * 12 2 1 15 15 O 1.21274 * 119.99810 * 359.97438 * 14 12 2 16 16 C 1.50697 * 120.00062 * 180.02562 * 14 12 2 17 17 H 1.09003 * 110.64023 * 34.48481 * 16 14 12 18 18 C 1.55160 * 110.72148 * 157.81813 * 16 14 12 19 19 C 1.54909 * 101.58132 * 153.86250 * 18 16 14 20 20 N 1.47422 * 104.83198 * 322.99447 * 19 18 16 21 21 C 1.34781 * 125.64403 * 204.16397 * 20 19 18 22 22 O 1.21513 * 119.99804 * 179.97438 * 21 20 19 23 23 O 1.34634 * 120.00372 * 359.95593 * 21 20 19 24 24 C 1.45203 * 117.00370 * 179.97438 * 23 21 20 25 25 C 1.53004 * 109.46646 * 60.00197 * 24 23 21 26 26 C 1.52989 * 109.47145 * 180.02562 * 24 23 21 27 27 C 1.53002 * 109.46921 * 300.00257 * 24 23 21 28 28 C 1.47015 * 108.70806 * 24.12698 * 20 19 18 29 29 H 1.08998 * 110.01339 * 118.43011 * 28 20 19 30 30 C 1.53001 * 109.88394 * 239.52676 * 28 20 19 31 31 H 1.09003 * 109.46789 * 60.00318 * 1 2 3 32 32 H 1.08997 * 109.46656 * 180.02562 * 1 2 3 33 33 H 1.08993 * 109.46936 * 300.00285 * 1 2 3 34 34 H 0.97003 * 119.99300 * 180.02562 * 7 6 4 35 35 H 1.08998 * 109.47250 * 90.00034 * 13 12 2 36 36 H 1.08999 * 109.47029 * 210.00322 * 13 12 2 37 37 H 1.08998 * 109.47387 * 330.00168 * 13 12 2 38 38 H 1.08996 * 111.00411 * 271.94332 * 18 16 14 39 39 H 1.09005 * 111.00116 * 35.79059 * 18 16 14 40 40 H 1.09000 * 110.36725 * 204.15158 * 19 18 16 41 41 H 1.08999 * 110.45821 * 81.88044 * 19 18 16 42 42 H 1.08988 * 109.47332 * 60.00045 * 25 24 23 43 43 H 1.09001 * 109.46825 * 180.02562 * 25 24 23 44 44 H 1.09005 * 109.46962 * 299.99950 * 25 24 23 45 45 H 1.08999 * 109.47603 * 60.00106 * 26 24 23 46 46 H 1.09000 * 109.47310 * 179.97438 * 26 24 23 47 47 H 1.09002 * 109.47596 * 300.00353 * 26 24 23 48 48 H 1.08999 * 109.47173 * 59.99988 * 27 24 23 49 49 H 1.09001 * 109.47029 * 179.97438 * 27 24 23 50 50 H 1.08996 * 109.47347 * 299.99982 * 27 24 23 51 51 H 1.09004 * 109.47029 * 182.55888 * 30 28 20 52 52 H 1.09000 * 109.46757 * 302.55409 * 30 28 20 53 53 H 1.09000 * 109.47485 * 62.55926 * 30 28 20 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 1.5301 0.0000 0.0000 3 1 1.8934 1.0277 0.0000 4 6 2.0324 -0.7103 -1.2304 5 1 2.6533 -1.5885 -1.1313 6 6 1.6994 -0.2393 -2.4828 7 7 0.9436 0.8302 -2.6033 8 14 2.3215 -1.1202 -4.0079 9 1 1.8271 -0.4198 -5.2204 10 1 3.8065 -1.1209 -4.0081 11 1 1.8260 -2.5201 -4.0077 12 7 2.0184 -0.6905 1.1961 13 6 1.6645 -2.0931 1.4280 14 6 2.7932 -0.0355 2.0834 15 8 3.0865 1.1254 1.8913 16 6 3.2960 -0.7461 3.3135 17 1 3.4996 -1.7945 3.0954 18 6 4.5597 -0.0429 3.8758 19 6 4.4927 -0.4336 5.3733 20 7 3.0565 -0.4109 5.7053 21 6 2.5376 -0.2314 6.9362 22 8 1.3327 -0.2306 7.0934 23 8 3.3543 -0.0532 7.9916 24 6 2.7259 0.1348 9.2871 25 6 1.8785 -1.0932 9.6258 26 6 3.8053 0.3206 10.3553 27 6 1.8319 1.3757 9.2449 28 6 2.2840 -0.6158 4.4713 29 1 1.6908 -1.5269 4.5495 30 6 1.3657 0.5834 4.2272 31 1 -0.3633 0.5138 -0.8900 32 1 -0.3632 -1.0277 0.0005 33 1 -0.3633 0.5138 0.8899 34 1 0.7090 1.1614 -3.4844 35 1 2.4158 -2.7376 0.9717 36 1 1.6238 -2.2851 2.5002 37 1 0.6905 -2.3002 0.9846 38 1 5.4642 -0.4339 3.4100 39 1 4.4936 1.0379 3.7506 40 1 5.0337 0.2930 5.9795 41 1 4.9014 -1.4325 5.5251 42 1 2.5153 -1.9771 9.6557 43 1 1.4064 -0.9519 10.5980 44 1 1.1094 -1.2251 8.8646 45 1 4.4088 1.1956 10.1138 46 1 3.3337 0.4622 11.3277 47 1 4.4427 -0.5631 10.3854 48 1 1.0629 1.2438 8.4838 49 1 1.3598 1.5166 10.2173 50 1 2.4356 2.2505 9.0036 51 1 0.7636 0.4045 3.3363 52 1 0.7102 0.7200 5.0873 53 1 1.9689 1.4799 4.0840 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 ZINC000492307820.mol2 53 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Wed Apr 1 2020 00:14:05 Heat of formation + Delta-G solvation = -110.851404 kcal Electronic energy + Delta-G solvation = -31950.963105 eV Core-core repulsion = 27823.193969 eV Total energy + Delta-G solvation = -4127.769136 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.93 seconds Orbital eigenvalues (eV) -41.07545 -39.95901 -38.05889 -36.46615 -35.32525 -34.27877 -32.94696 -31.68561 -31.17589 -29.36555 -27.65139 -27.58309 -26.31427 -26.04970 -25.21968 -24.08486 -22.50505 -21.51886 -20.07936 -19.42288 -18.12901 -17.86656 -16.76363 -16.68183 -16.41962 -16.25210 -15.53651 -15.26634 -15.09150 -14.69930 -14.32500 -14.14942 -13.96440 -13.63574 -13.29140 -12.98980 -12.74026 -12.65534 -12.63699 -12.52623 -12.30469 -12.13320 -12.11552 -12.07970 -11.80312 -11.69652 -11.59878 -11.51724 -11.42328 -11.32518 -11.05855 -10.85243 -10.81757 -10.69018 -10.66417 -10.50726 -10.27341 -10.16949 -10.03489 -9.19475 -9.00538 -8.79358 -8.43295 -7.61062 -6.07971 -4.16090 1.94632 2.78499 3.23688 3.27192 3.32550 3.34587 3.70309 3.91709 4.38420 4.44697 4.48817 4.52982 4.58158 4.67524 4.91457 5.07598 5.20573 5.21509 5.22290 5.27911 5.29792 5.32745 5.41227 5.44340 5.52470 5.56181 5.62863 5.63797 5.67921 5.74061 5.78104 5.94681 6.02890 6.07964 6.12122 6.13324 6.21583 6.26343 6.29007 6.37599 6.53541 6.76214 6.82097 7.04479 7.40814 7.42450 7.50386 7.70490 8.00366 8.18393 8.27623 8.50247 8.81421 9.01400 9.50420 10.97221 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.028642 B = 0.002452 C = 0.002396 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 977.352612 B =11418.492267 C =11684.112071 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.148 4.148 2 C 0.259 3.741 3 H 0.064 0.936 4 C -0.526 4.526 5 H 0.058 0.942 6 C 0.064 3.936 7 N -0.888 5.888 8 Si 0.899 3.101 9 H -0.286 1.286 10 H -0.277 1.277 11 H -0.277 1.277 12 N -0.591 5.591 13 C 0.084 3.916 14 C 0.521 3.479 15 O -0.545 6.545 16 C -0.124 4.124 17 H 0.103 0.897 18 C -0.116 4.116 19 C 0.104 3.896 20 N -0.598 5.598 21 C 0.669 3.331 22 O -0.565 6.565 23 O -0.363 6.363 24 C 0.136 3.864 25 C -0.183 4.183 26 C -0.140 4.140 27 C -0.184 4.184 28 C 0.174 3.826 29 H 0.082 0.918 30 C -0.171 4.171 31 H 0.093 0.907 32 H 0.030 0.970 33 H 0.012 0.988 34 H 0.264 0.736 35 H 0.050 0.950 36 H 0.051 0.949 37 H 0.075 0.925 38 H 0.089 0.911 39 H 0.096 0.904 40 H 0.081 0.919 41 H 0.071 0.929 42 H 0.058 0.942 43 H 0.069 0.931 44 H 0.088 0.912 45 H 0.066 0.934 46 H 0.079 0.921 47 H 0.066 0.934 48 H 0.089 0.911 49 H 0.069 0.931 50 H 0.059 0.941 51 H 0.072 0.928 52 H 0.071 0.929 53 H 0.068 0.932 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 4.945 -4.848 22.787 23.816 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 -0.206 4.206 2 C 0.159 3.841 3 H 0.081 0.919 4 C -0.564 4.564 5 H 0.076 0.924 6 C -0.138 4.138 7 N -0.526 5.526 8 Si 0.726 3.274 9 H -0.212 1.212 10 H -0.203 1.203 11 H -0.203 1.203 12 N -0.322 5.322 13 C -0.060 4.060 14 C 0.307 3.693 15 O -0.424 6.424 16 C -0.147 4.147 17 H 0.121 0.879 18 C -0.154 4.154 19 C -0.018 4.018 20 N -0.340 5.340 21 C 0.425 3.575 22 O -0.454 6.454 23 O -0.278 6.278 24 C 0.099 3.901 25 C -0.240 4.240 26 C -0.197 4.197 27 C -0.241 4.241 28 C 0.072 3.928 29 H 0.100 0.900 30 C -0.229 4.229 31 H 0.112 0.888 32 H 0.049 0.951 33 H 0.031 0.969 34 H 0.074 0.926 35 H 0.068 0.932 36 H 0.070 0.930 37 H 0.093 0.907 38 H 0.107 0.893 39 H 0.114 0.886 40 H 0.100 0.900 41 H 0.089 0.911 42 H 0.077 0.923 43 H 0.087 0.913 44 H 0.107 0.893 45 H 0.085 0.915 46 H 0.098 0.902 47 H 0.085 0.915 48 H 0.107 0.893 49 H 0.087 0.913 50 H 0.078 0.922 51 H 0.091 0.909 52 H 0.090 0.910 53 H 0.087 0.913 Dipole moment (debyes) X Y Z Total from point charges 4.577 -4.094 22.723 23.538 hybrid contribution 0.273 -0.707 -0.889 1.168 sum 4.851 -4.801 21.834 22.876 Atomic orbital electron populations 1.22103 0.98231 0.99381 1.00886 1.18939 0.90831 0.94471 0.79868 0.91861 1.21270 1.31888 1.12979 0.90294 0.92360 1.24894 0.94966 0.94981 0.98963 1.69871 1.36284 1.22555 1.23863 0.86554 0.79207 0.79569 0.82031 1.21200 1.20279 1.20257 1.48235 1.48753 1.11630 1.23541 1.21600 1.01825 0.83291 0.99279 1.19740 0.79118 0.86914 0.83524 1.90648 1.58301 1.16820 1.76615 1.22541 0.96623 1.01802 0.93705 0.87886 1.22755 0.96816 1.03085 0.92753 1.22389 0.81126 1.01799 0.96529 1.47258 1.08440 1.74222 1.04030 1.17427 0.83377 0.76382 0.80328 1.90887 1.13538 1.56685 1.84327 1.86300 1.40079 1.85087 1.16312 1.22052 0.93227 0.96163 0.78665 1.22512 1.01289 0.96703 1.03490 1.21848 0.98154 1.03134 0.96553 1.22518 1.01055 0.96456 1.04065 1.21293 0.91689 0.99603 0.80257 0.89968 1.22282 0.99895 0.97899 1.02846 0.88802 0.95087 0.96941 0.92631 0.93184 0.93041 0.90668 0.89269 0.88555 0.90028 0.91088 0.92274 0.91254 0.89286 0.91487 0.90215 0.91537 0.89267 0.91253 0.92171 0.90877 0.90982 0.91336 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 12. 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 -3.46 8.95 37.16 0.33 -3.13 16 2 C 0.26 6.43 2.63 -69.08 -0.18 6.25 16 3 H 0.06 1.83 6.90 -51.93 -0.36 1.48 16 4 C -0.53 -13.91 8.37 -34.44 -0.29 -14.20 16 5 H 0.06 1.51 7.65 -52.48 -0.40 1.11 16 6 C 0.06 1.73 5.30 -17.82 -0.09 1.64 16 7 N -0.89 -24.87 11.32 55.43 0.63 -24.25 16 8 Si 0.90 20.82 29.54 -169.99 -5.02 15.80 16 9 H -0.29 -6.61 7.11 56.52 0.40 -6.21 16 10 H -0.28 -6.43 7.11 56.52 0.40 -6.03 16 11 H -0.28 -6.27 7.11 56.52 0.40 -5.87 16 12 N -0.59 -11.98 2.75 -175.27 -0.48 -12.46 16 13 C 0.08 1.35 9.13 59.85 0.55 1.89 16 14 C 0.52 10.05 4.80 -10.99 -0.05 9.99 16 15 O -0.55 -12.59 14.36 5.56 0.08 -12.51 16 16 C -0.12 -1.76 2.26 -89.93 -0.20 -1.96 16 17 H 0.10 1.24 6.97 -51.93 -0.36 0.88 16 18 C -0.12 -1.44 6.38 -24.58 -0.16 -1.59 16 19 C 0.10 1.11 6.92 -2.53 -0.02 1.10 16 20 N -0.60 -7.88 3.08 -168.76 -0.52 -8.40 16 21 C 0.67 9.37 7.71 54.06 0.42 9.79 16 22 O -0.57 -8.86 10.72 -19.28 -0.21 -9.07 16 23 O -0.36 -4.44 9.42 -40.31 -0.38 -4.82 16 24 C 0.14 1.34 1.13 -90.62 -0.10 1.24 16 25 C -0.18 -1.73 8.37 37.16 0.31 -1.42 16 26 C -0.14 -0.98 8.85 37.15 0.33 -0.65 16 27 C -0.18 -1.83 8.37 37.16 0.31 -1.52 16 28 C 0.17 2.43 3.11 -66.95 -0.21 2.22 16 29 H 0.08 1.09 7.58 -51.93 -0.39 0.70 16 30 C -0.17 -2.76 8.12 37.16 0.30 -2.46 16 31 H 0.09 2.44 6.07 -51.93 -0.32 2.12 16 32 H 0.03 0.67 6.66 -51.93 -0.35 0.32 16 33 H 0.01 0.26 8.14 -51.93 -0.42 -0.16 16 34 H 0.26 7.06 8.31 -40.82 -0.34 6.73 16 35 H 0.05 0.77 8.14 -51.93 -0.42 0.34 16 36 H 0.05 0.66 5.79 -51.93 -0.30 0.35 16 37 H 0.07 1.23 6.43 -51.93 -0.33 0.90 16 38 H 0.09 0.95 8.14 -51.93 -0.42 0.53 16 39 H 0.10 1.41 7.22 -51.93 -0.37 1.04 16 40 H 0.08 0.81 8.04 -51.93 -0.42 0.39 16 41 H 0.07 0.63 8.14 -51.93 -0.42 0.21 16 42 H 0.06 0.53 8.14 -51.94 -0.42 0.10 16 43 H 0.07 0.52 8.14 -51.93 -0.42 0.09 16 44 H 0.09 1.07 5.88 -51.93 -0.31 0.76 16 45 H 0.07 0.46 8.14 -51.93 -0.42 0.04 16 46 H 0.08 0.41 8.14 -51.93 -0.42 -0.01 16 47 H 0.07 0.44 8.14 -51.93 -0.42 0.02 16 48 H 0.09 1.12 5.88 -51.93 -0.31 0.82 16 49 H 0.07 0.54 8.14 -51.93 -0.42 0.12 16 50 H 0.06 0.59 8.14 -51.93 -0.42 0.17 16 51 H 0.07 1.27 7.28 -51.93 -0.38 0.89 16 52 H 0.07 1.17 6.62 -51.93 -0.34 0.83 16 53 H 0.07 1.21 7.45 -51.93 -0.39 0.82 16 LS Contribution 403.20 15.07 6.08 6.08 Total: -1.00 -31.29 403.20 -7.69 -38.98 By element: Atomic # 1 Polarization: 12.58 SS G_CDS: -9.11 Total: 3.47 kcal Atomic # 6 Polarization: 5.94 SS G_CDS: 1.24 Total: 7.18 kcal Atomic # 7 Polarization: -44.73 SS G_CDS: -0.37 Total: -45.10 kcal Atomic # 8 Polarization: -25.89 SS G_CDS: -0.51 Total: -26.40 kcal Atomic # 14 Polarization: 20.82 SS G_CDS: -5.02 Total: 15.80 kcal Total LS contribution 6.08 Total: 6.08 kcal Total: -31.29 -7.69 -38.98 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. ZINC000492307820.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 -71.876 kcal (2) G-P(sol) polarization free energy of solvation -31.285 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -103.162 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -7.690 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -38.975 kcal (6) G-S(sol) free energy of system = (1) + (5) -110.851 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.93 seconds