Wall clock time and date at job start Sun Mar 7 2021 01:37:51 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 * SM5.42R - SM5.42R CALCULATIONS WILL BE PERFORMED * - CHARGE MODEL 2 WILL BE USED (CM2A) * - THE SOLVENT IS WATER ******************************************************************************* 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 1.52999 * 1 3 3 C 1.52997 * 109.47006 * 2 1 4 4 C 1.53000 * 109.47215 * 175.00090 * 3 2 1 5 5 C 1.53002 * 109.47014 * 294.99917 * 3 2 1 6 6 C 1.50694 * 109.47298 * 180.70889 * 5 3 2 7 7 O 1.21284 * 120.00000 * 119.09463 * 6 5 3 8 8 N 1.34777 * 120.00049 * 299.09472 * 6 5 3 9 9 C 1.46496 * 120.00051 * 174.48652 * 8 6 5 10 10 H 1.08995 * 112.85344 * 336.47003 * 9 8 6 11 11 C 1.53786 * 113.61630 * 107.77665 * 9 8 6 12 12 C 1.53775 * 87.08145 * 89.11907 * 11 9 8 13 13 H 1.09013 * 113.61076 * 270.88397 * 12 11 9 14 14 C 1.50696 * 113.69369 * 139.99546 * 12 11 9 15 15 C 1.38196 * 119.99425 * 322.18597 * 14 12 11 16 16 C 1.38347 * 119.99210 * 179.76845 * 15 14 12 17 17 Br 1.89093 * 120.01285 * 180.25268 * 16 15 14 18 18 C 1.38309 * 119.97566 * 0.48242 * 16 15 14 19 19 C 1.38240 * 119.99070 * 359.77400 * 18 16 15 20 20 C 1.38216 * 120.01224 * 359.97438 * 19 18 16 21 21 C 1.53774 * 87.08346 * 25.42965 * 12 11 9 22 22 N 1.46500 * 109.47282 * 300.71002 * 5 3 2 23 23 C 1.36343 * 125.63685 * 294.66115 * 22 5 3 24 24 C 1.34850 * 108.21823 * 179.82557 * 23 22 5 25 25 C 1.40889 * 107.41911 * 0.42697 * 24 23 22 26 26 C 1.34853 * 107.41384 * 359.72885 * 25 24 23 27 27 C 1.50703 * 125.88672 * 179.97438 * 26 25 24 28 28 O 1.42903 * 109.46943 * 210.02802 * 27 26 25 29 29 Si 1.86300 * 109.47565 * 330.03245 * 27 26 25 30 30 H 1.09003 * 109.46929 * 185.62996 * 1 2 3 31 31 H 1.08998 * 109.47454 * 305.63397 * 1 2 3 32 32 H 1.08995 * 109.47347 * 65.63724 * 1 2 3 33 33 H 1.08997 * 109.47572 * 239.99538 * 2 1 3 34 34 H 1.09006 * 109.46807 * 119.99558 * 2 1 3 35 35 H 1.08996 * 109.47673 * 55.00013 * 3 2 1 36 36 H 1.08999 * 109.46922 * 172.52630 * 4 3 2 37 37 H 1.08991 * 109.47354 * 292.52700 * 4 3 2 38 38 H 1.09004 * 109.47288 * 52.52950 * 4 3 2 39 39 H 1.08998 * 109.46735 * 60.70843 * 5 3 2 40 40 H 0.97001 * 119.99686 * 354.75348 * 8 6 5 41 41 H 1.08998 * 113.61224 * 203.66487 * 11 9 8 42 42 H 1.09002 * 113.61336 * 334.56627 * 11 9 8 43 43 H 1.07996 * 120.00313 * 359.97438 * 15 14 12 44 44 H 1.08005 * 120.00291 * 179.78913 * 18 16 15 45 45 H 1.07999 * 119.99481 * 180.02562 * 19 18 16 46 46 H 1.08001 * 119.99079 * 180.02562 * 20 19 18 47 47 H 1.08996 * 113.61943 * 220.01529 * 21 12 11 48 48 H 1.09007 * 113.61048 * 89.11749 * 21 12 11 49 49 H 1.07997 * 125.88916 * 359.97438 * 23 22 5 50 50 H 1.07998 * 126.28584 * 180.15518 * 24 23 22 51 51 H 1.08001 * 126.29384 * 179.73320 * 25 24 23 52 52 H 1.09007 * 109.46802 * 90.03290 * 27 26 25 53 53 H 0.96692 * 113.99795 * 60.00577 * 28 27 26 54 54 H 1.48497 * 110.00041 * 58.67639 * 29 27 26 55 55 H 1.48497 * 109.99782 * 179.97438 * 29 27 26 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 3.5648 1.4444 0.1257 5 6 1.6352 2.1265 -1.3074 6 6 2.1524 3.5419 -1.3149 7 8 2.9344 3.8972 -2.1712 8 7 1.7460 4.4129 -0.3701 9 6 2.3386 5.7510 -0.3039 10 1 3.3285 5.7985 -0.7577 11 6 1.3907 6.8684 -0.7708 12 6 0.9025 6.9546 0.6848 13 1 0.0688 6.2879 0.9059 14 6 0.6667 8.3645 1.1619 15 6 1.5170 9.3792 0.7656 16 6 1.2978 10.6743 1.1998 17 35 2.4567 12.0645 0.6522 18 6 0.2333 10.9512 2.0385 19 6 -0.6136 9.9345 2.4386 20 6 -0.3972 8.6417 2.0004 21 6 2.2711 6.3861 1.0949 22 7 2.2053 1.3922 -2.4396 23 6 3.5344 1.2665 -2.7167 24 6 3.6638 0.5191 -3.8316 25 6 2.3668 0.1789 -4.2642 26 6 1.4944 0.7264 -3.3937 27 6 -0.0073 0.6211 -3.4638 28 8 -0.5941 1.7916 -2.8915 29 14 -0.5367 0.4675 -5.2433 30 1 -0.3633 -1.0227 0.1008 31 1 -0.3634 0.5987 0.8352 32 1 -0.3634 0.4239 -0.9361 33 1 1.8934 -0.5139 -0.8899 34 1 1.8933 -0.5138 0.8901 35 1 1.6054 1.9816 0.8417 36 1 3.9390 2.4594 -0.0072 37 1 3.8485 1.0789 1.1125 38 1 3.9932 0.7962 -0.6388 39 1 0.5484 2.1363 -1.3909 40 1 1.0640 4.1524 0.2685 41 1 1.9077 7.7653 -1.1118 42 1 0.6255 6.5285 -1.4687 43 1 2.3507 9.1618 0.1144 44 1 0.0637 11.9615 2.3804 45 1 -1.4451 10.1507 3.0931 46 1 -1.0594 7.8477 2.3129 47 1 2.2167 5.6571 1.9034 48 1 3.0288 7.1514 1.2641 49 1 4.3440 1.6901 -2.1410 50 1 4.5910 0.2372 -4.3081 51 1 2.1171 -0.4117 -5.1332 52 1 -0.3361 -0.2582 -2.9097 53 1 -0.3447 2.6137 -3.3353 54 1 0.0923 -0.7285 -5.8590 55 1 -2.0157 0.3622 -5.3259 There are 72 doubly filled levels RHF calculation, no. of doubly occupied orbitals= 72 No. of singly occupied orbitals= 1 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). Br: (AM1): M.J.S. DEWAR AND E. G. ZOEBISCH, THEOCHEM, 180, 1 (1988). 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=WATER s_22_14189268_12360566.mol2 55 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 01:37:51 Heat of formation + Delta-G solvation = 51.231755 kcal Electronic energy + Delta-G solvation = -37158.701377 eV Core-core repulsion = 32596.657711 eV Total energy + Delta-G solvation = -4562.043666 eV No. of doubly occupied orbitals = 72 and no. of open levels = 1 Molecular weight (most abundant/longest-lived isotopes) = 447.120 amu Computer time = 1.94 seconds Orbital eigenvalues (eV) -42.89732 -41.51780 -40.34820 -38.88610 -37.86601 -37.58063 -34.65103 -33.31790 -33.00386 -31.79885 -31.50309 -30.57696 -30.23380 -28.29323 -26.69745 -26.24515 -25.91376 -24.63877 -23.57764 -22.63005 -22.27293 -21.67919 -21.49902 -20.34181 -20.10498 -18.79435 -18.20870 -17.97389 -17.20368 -16.88104 -16.77316 -16.52452 -16.23816 -16.10194 -15.74844 -15.36399 -15.26034 -15.13561 -14.81774 -14.68142 -14.64501 -14.48321 -14.40996 -14.24872 -14.22772 -14.07768 -13.74282 -13.53487 -13.44530 -13.35850 -13.20904 -12.91449 -12.82388 -12.35835 -12.22054 -12.15993 -12.01366 -11.97029 -11.91614 -11.85563 -11.80244 -11.63613 -11.52818 -11.31927 -11.18602 -11.05799 -10.57723 -10.13353 -9.82626 -9.60742 -9.51538 -8.85841 -4.92183 0.11775 0.28004 0.64721 1.03726 1.38919 1.43880 1.63004 1.78774 1.94038 2.14032 2.29703 2.58850 3.22657 3.41900 3.44707 3.55241 3.63942 3.64339 3.71084 3.81800 3.85029 3.95620 3.99236 4.06978 4.19889 4.24281 4.27127 4.30553 4.31888 4.42978 4.48096 4.48959 4.57598 4.59611 4.64626 4.69140 4.71260 4.75542 4.76745 4.83845 4.87562 4.96131 4.98009 4.99235 5.03244 5.13773 5.14470 5.18067 5.23207 5.27486 5.32850 5.37481 5.40025 5.42827 5.49444 5.62606 5.86087 6.03612 6.27440 6.31611 6.50039 6.52737 7.10831 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.163 4.163 2 C -0.114 4.114 3 C -0.088 4.088 4 C -0.163 4.163 5 C 0.102 3.898 6 C 0.512 3.488 7 O -0.557 6.557 8 N -0.692 5.692 9 C 0.121 3.879 10 H 0.082 0.918 11 C -0.143 4.143 12 C -0.063 4.063 13 H 0.123 0.877 14 C -0.068 4.068 15 C -0.099 4.099 16 C -0.103 4.103 17 Br -0.064 7.064 18 C -0.109 4.109 19 C -0.115 4.115 20 C -0.102 4.102 21 C -0.126 4.126 22 N -0.406 5.406 23 C 0.015 3.985 24 C -0.225 4.225 25 C -0.209 4.209 26 C -0.015 4.015 27 C -0.039 4.039 28 O -0.545 6.545 29 Si 0.781 3.219 30 H 0.050 0.950 31 H 0.070 0.930 32 H 0.063 0.937 33 H 0.047 0.953 34 H 0.072 0.928 35 H 0.115 0.885 36 H 0.048 0.952 37 H 0.072 0.928 38 H 0.058 0.942 39 H 0.167 0.833 40 H 0.417 0.583 41 H 0.088 0.912 42 H 0.073 0.927 43 H 0.134 0.866 44 H 0.135 0.865 45 H 0.151 0.849 46 H 0.153 0.847 47 H 0.093 0.907 48 H 0.094 0.906 49 H 0.158 0.842 50 H 0.136 0.864 51 H 0.138 0.862 52 H 0.119 0.881 53 H 0.392 0.608 54 H -0.288 1.288 55 H -0.285 1.285 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -4.638 0.134 5.462 7.167 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 -0.220 4.220 2 C -0.152 4.152 3 C -0.107 4.107 4 C -0.220 4.220 5 C -0.003 4.003 6 C 0.298 3.702 7 O -0.435 6.435 8 N -0.344 5.344 9 C 0.016 3.984 10 H 0.101 0.899 11 C -0.182 4.182 12 C -0.081 4.081 13 H 0.141 0.859 14 C -0.069 4.069 15 C -0.118 4.118 16 C -0.183 4.183 17 Br 0.021 6.979 18 C -0.129 4.129 19 C -0.133 4.133 20 C -0.120 4.120 21 C -0.164 4.164 22 N -0.081 5.081 23 C -0.115 4.115 24 C -0.249 4.249 25 C -0.234 4.234 26 C -0.127 4.127 27 C -0.150 4.150 28 O -0.352 6.352 29 Si 0.685 3.315 30 H 0.069 0.931 31 H 0.089 0.911 32 H 0.082 0.918 33 H 0.066 0.934 34 H 0.090 0.910 35 H 0.133 0.867 36 H 0.067 0.933 37 H 0.091 0.909 38 H 0.077 0.923 39 H 0.184 0.816 40 H 0.255 0.745 41 H 0.106 0.894 42 H 0.092 0.908 43 H 0.151 0.849 44 H 0.153 0.847 45 H 0.169 0.831 46 H 0.170 0.830 47 H 0.112 0.888 48 H 0.112 0.888 49 H 0.175 0.825 50 H 0.154 0.846 51 H 0.155 0.845 52 H 0.136 0.864 53 H 0.242 0.758 54 H -0.214 1.214 55 H -0.212 1.212 Dipole moment (debyes) X Y Z Total from point charges -4.434 0.181 4.745 6.497 hybrid contribution 0.291 -0.461 0.610 0.818 sum -4.143 -0.280 5.355 6.777 Atomic orbital electron populations 1.21958 0.94769 1.02198 1.03035 1.21493 0.96711 0.94946 1.02049 1.21534 0.96907 0.97453 0.94798 1.22176 0.95077 1.01589 1.03169 1.22055 1.03445 0.87853 0.86991 1.20777 0.80907 0.87412 0.81117 1.90797 1.35963 1.79139 1.37575 1.45433 1.42628 1.12914 1.33458 1.21779 0.97179 0.81335 0.98155 0.89934 1.23534 0.99454 0.98817 0.96398 1.21637 0.98765 0.92107 0.95559 0.85939 1.19868 0.94751 0.95158 0.97098 1.21083 1.00233 0.90678 0.99838 1.21943 0.98580 0.93568 1.04164 1.96762 1.62974 1.47777 1.90354 1.21349 0.93775 1.01098 0.96667 1.21490 0.99485 0.92531 0.99842 1.21549 0.97006 0.97465 0.95944 1.23375 0.96745 1.00273 0.95997 1.43474 1.05178 1.39461 1.20019 1.21838 0.85802 1.03802 1.00091 1.21001 0.98053 1.06431 0.99375 1.20766 0.92892 1.07621 1.02111 1.20827 0.94391 1.04361 0.93086 1.24803 0.86944 0.91174 1.12043 1.86296 1.72366 1.16929 1.59602 0.93048 0.76322 0.86858 0.75270 0.93058 0.91084 0.91785 0.93403 0.90978 0.86693 0.93324 0.90897 0.92263 0.81593 0.74544 0.89376 0.90789 0.84865 0.84675 0.83130 0.82952 0.88813 0.88794 0.82499 0.84601 0.84452 0.86428 0.75831 1.21420 1.21177 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 15. 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 -0.16 0.74 9.52 71.98 0.69 1.42 16 2 C -0.11 0.36 5.31 30.59 0.16 0.52 16 3 C -0.09 0.45 2.19 -10.79 -0.02 0.43 16 4 C -0.16 0.36 7.75 71.98 0.56 0.92 16 5 C 0.10 -0.29 2.15 44.24 0.10 -0.20 16 6 C 0.51 -0.33 5.67 87.66 0.50 0.16 16 7 O -0.56 -4.75 14.80 -3.04 -0.05 -4.79 16 8 N -0.69 4.77 5.13 -440.05 -2.26 2.51 16 9 C 0.12 -0.60 4.29 45.52 0.20 -0.40 16 10 H 0.08 0.04 7.53 -2.39 -0.02 0.02 16 11 C -0.14 0.74 7.26 31.12 0.23 0.97 16 12 C -0.06 0.52 3.85 -11.02 -0.04 0.48 16 13 H 0.12 -1.50 8.09 -2.38 -0.02 -1.52 16 14 C -0.07 0.28 5.29 -19.87 -0.11 0.18 16 15 C -0.10 0.07 8.34 22.29 0.19 0.26 16 16 C -0.10 -0.16 6.22 22.31 0.14 -0.02 16 17 Br -0.06 -0.20 33.70 -20.37 -0.69 -0.89 16 18 C -0.11 0.03 9.79 22.29 0.22 0.25 16 19 C -0.11 0.42 10.05 22.27 0.22 0.64 16 20 C -0.10 0.53 9.71 22.27 0.22 0.75 16 21 C -0.13 1.03 7.29 31.12 0.23 1.26 16 22 N -0.41 -0.91 1.62 -491.52 -0.79 -1.71 16 23 C 0.02 0.09 7.47 83.21 0.62 0.71 16 24 C -0.22 -1.65 10.86 22.14 0.24 -1.41 16 25 C -0.21 -1.21 9.43 22.14 0.21 -1.00 16 26 C -0.02 -0.04 5.95 41.08 0.24 0.20 16 27 C -0.04 0.06 2.22 71.24 0.16 0.22 16 28 O -0.54 2.53 8.97 -148.98 -1.34 1.19 16 29 Si 0.78 -1.06 31.31 68.60 2.15 1.09 16 30 H 0.05 -0.16 8.14 -2.39 -0.02 -0.18 16 31 H 0.07 -0.52 8.14 -2.39 -0.02 -0.54 16 32 H 0.06 -0.22 4.26 -2.39 -0.01 -0.23 16 33 H 0.05 0.09 7.25 -2.39 -0.02 0.07 16 34 H 0.07 -0.26 8.14 -2.38 -0.02 -0.28 16 35 H 0.12 -1.17 7.77 -2.39 -0.02 -1.19 16 36 H 0.05 -0.01 6.93 -2.39 -0.02 -0.03 16 37 H 0.07 -0.28 8.14 -2.39 -0.02 -0.30 16 38 H 0.06 0.07 5.32 -2.39 -0.01 0.06 16 39 H 0.17 -0.91 3.77 -2.39 -0.01 -0.92 16 40 H 0.42 -5.35 8.37 -92.71 -0.78 -6.13 16 41 H 0.09 -0.30 6.33 -2.39 -0.02 -0.32 16 42 H 0.07 -0.30 8.14 -2.39 -0.02 -0.32 16 43 H 0.13 -0.22 6.68 -2.91 -0.02 -0.24 16 44 H 0.14 -0.25 8.06 -2.91 -0.02 -0.27 16 45 H 0.15 -1.19 8.06 -2.91 -0.02 -1.21 16 46 H 0.15 -1.58 8.05 -2.91 -0.02 -1.60 16 47 H 0.09 -1.00 8.14 -2.39 -0.02 -1.02 16 48 H 0.09 -0.61 7.71 -2.38 -0.02 -0.63 16 49 H 0.16 0.95 6.35 -2.91 -0.02 0.93 16 50 H 0.14 0.79 8.06 -2.91 -0.02 0.76 16 51 H 0.14 0.64 6.67 -2.91 -0.02 0.62 16 52 H 0.12 -0.18 7.21 -2.38 -0.02 -0.20 16 53 H 0.39 -3.50 8.70 -74.06 -0.64 -4.15 16 54 H -0.29 -1.28 6.78 99.48 0.67 -0.60 16 55 H -0.28 -1.09 7.11 99.48 0.71 -0.38 16 Total: 0.00 -17.51 440.06 1.48 -16.03 By element: Atomic # 1 Polarization: -19.29 SS G_CDS: -0.48 Total: -19.77 kcal Atomic # 6 Polarization: 1.41 SS G_CDS: 4.93 Total: 6.34 kcal Atomic # 7 Polarization: 3.86 SS G_CDS: -3.05 Total: 0.81 kcal Atomic # 8 Polarization: -2.22 SS G_CDS: -1.38 Total: -3.60 kcal Atomic # 14 Polarization: -1.06 SS G_CDS: 2.15 Total: 1.09 kcal Atomic # 35 Polarization: -0.20 SS G_CDS: -0.69 Total: -0.89 kcal Total: -17.51 1.48 -16.03 kcal The number of atoms in the molecule is 55 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_14189268_12360566.mol2 55 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 67.260 kcal (2) G-P(sol) polarization free energy of solvation -17.510 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 49.750 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy 1.482 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -16.028 kcal (6) G-S(sol) free energy of system = (1) + (5) 51.232 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.94 seconds