Wall clock time and date at job start Sat Apr 11 2020 06:12:15 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 1.53003 * 1 3 3 O 1.45200 * 109.46694 * 2 1 4 4 C 1.34233 * 116.99729 * 179.97438 * 3 2 1 5 5 O 1.20829 * 120.00150 * 0.02562 * 4 3 2 6 6 C 1.50702 * 119.99909 * 180.02562 * 4 3 2 7 7 C 1.53002 * 109.46880 * 180.02562 * 6 4 3 8 8 C 1.53117 * 109.52271 * 65.31845 * 7 6 4 9 9 C 1.53037 * 109.27796 * 177.55807 * 8 7 6 10 10 N 1.46849 * 109.52175 * 300.81781 * 9 8 7 11 11 C 1.46902 * 110.99695 * 185.84066 * 10 9 8 12 12 H 1.09005 * 109.47091 * 297.82848 * 11 10 9 13 13 C 1.53000 * 109.47024 * 177.82979 * 11 10 9 14 14 C 1.50700 * 109.47620 * 57.83086 * 11 10 9 15 15 O 1.21282 * 119.99828 * 30.56727 * 14 11 10 16 16 N 1.34769 * 120.00120 * 210.57384 * 14 11 10 17 17 C 1.46492 * 120.00184 * 354.74702 * 16 14 11 18 18 C 1.46505 * 120.00048 * 174.75492 * 16 14 11 19 19 C 1.50699 * 109.47369 * 89.99371 * 18 16 14 20 20 H 1.08003 * 119.99989 * 359.97438 * 19 18 16 21 21 C 1.37877 * 119.99978 * 180.02562 * 19 18 16 22 22 N 1.31512 * 119.99820 * 0.02562 * 21 19 18 23 23 Si 1.86799 * 120.00173 * 180.02562 * 21 19 18 24 24 H 1.48500 * 109.46918 * 60.00173 * 23 21 19 25 25 H 1.48497 * 109.47412 * 180.02562 * 23 21 19 26 26 H 1.48504 * 109.47038 * 300.00176 * 23 21 19 27 27 C 1.46842 * 111.19818 * 61.74629 * 10 9 8 28 28 C 1.53038 * 109.52116 * 298.25444 * 27 10 9 29 29 H 1.08998 * 109.47517 * 299.99964 * 1 2 3 30 30 H 1.09005 * 109.47094 * 60.00329 * 1 2 3 31 31 H 1.09007 * 109.46901 * 179.97438 * 1 2 3 32 32 H 1.08998 * 109.47517 * 240.00036 * 2 1 3 33 33 H 1.09005 * 109.47094 * 119.99671 * 2 1 3 34 34 H 1.08994 * 109.47116 * 59.99986 * 6 4 3 35 35 H 1.09007 * 109.46803 * 299.99850 * 6 4 3 36 36 H 1.08994 * 109.57766 * 305.15638 * 7 6 4 37 37 H 1.08998 * 109.50602 * 297.49883 * 8 7 6 38 38 H 1.09002 * 109.50732 * 57.61875 * 8 7 6 39 39 H 1.09007 * 109.46217 * 180.80633 * 9 8 7 40 40 H 1.08997 * 109.46452 * 60.83952 * 9 8 7 41 41 H 1.09004 * 109.46991 * 65.82836 * 13 11 10 42 42 H 1.08997 * 109.47269 * 185.83382 * 13 11 10 43 43 H 1.09005 * 109.47145 * 305.83263 * 13 11 10 44 44 H 1.09006 * 109.47201 * 94.51116 * 17 16 14 45 45 H 1.09004 * 109.47510 * 214.50832 * 17 16 14 46 46 H 1.09002 * 109.47396 * 334.50873 * 17 16 14 47 47 H 1.09005 * 109.47011 * 209.99990 * 18 16 14 48 48 H 1.09000 * 109.46885 * 329.99488 * 18 16 14 49 49 H 0.97002 * 120.00100 * 180.02562 * 22 21 19 50 50 H 1.09003 * 109.46294 * 178.24515 * 27 10 9 51 51 H 1.08998 * 109.45567 * 58.26162 * 27 10 9 52 52 H 1.09003 * 109.50465 * 299.23901 * 28 27 10 53 53 H 1.08996 * 109.50662 * 179.11954 * 28 27 10 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 2.0139 1.3690 0.0000 4 6 3.3447 1.5449 0.0005 5 8 4.0808 0.5867 0.0005 6 6 3.9206 2.9375 0.0012 7 6 5.4486 2.8574 0.0010 8 6 5.9279 2.2295 -1.3106 9 6 7.4580 2.2079 -1.3308 10 7 7.9698 3.5788 -1.2079 11 6 9.4303 3.6112 -1.3624 12 1 9.8929 3.0268 -0.5670 13 6 9.9196 5.0587 -1.2825 14 6 9.8073 3.0267 -2.6993 15 8 9.0510 3.1312 -3.6417 16 7 10.9846 2.3879 -2.8477 17 6 11.9476 2.3610 -1.7441 18 6 11.3016 1.7206 -4.1129 19 6 11.9993 2.6903 -5.0314 20 1 12.1875 3.7027 -4.7056 21 6 12.3966 2.2855 -6.2881 22 7 12.1661 1.0531 -6.6853 23 14 13.2622 3.4873 -7.4264 24 1 14.5175 3.9576 -6.7876 25 1 13.5822 2.8112 -8.7092 26 1 12.3744 4.6487 -7.6876 27 6 7.5618 4.1857 0.0655 28 6 6.0348 4.2664 0.1274 29 1 -0.3634 0.5138 0.8899 30 1 -0.3633 0.5138 -0.8901 31 1 -0.3633 -1.0277 -0.0005 32 1 1.8934 -0.5138 -0.8899 33 1 1.8934 -0.5138 0.8901 34 1 3.5843 3.4694 0.8911 35 1 3.5850 3.4699 -0.8889 36 1 5.7824 2.2474 0.8403 37 1 5.5486 1.2104 -1.3862 38 1 5.5612 2.8183 -2.1514 39 1 7.8027 1.7744 -2.2697 40 1 7.8238 1.6075 -0.4979 41 1 9.7397 5.4482 -0.2804 42 1 10.9871 5.0939 -1.4998 43 1 9.3804 5.6652 -2.0102 44 1 11.8124 1.4467 -1.1662 45 1 12.9608 2.3909 -2.1450 46 1 11.7862 3.2253 -1.0998 47 1 11.9537 0.8685 -3.9207 48 1 10.3804 1.3746 -4.5818 49 1 12.4459 0.7682 -7.5693 50 1 7.9817 5.1887 0.1408 51 1 7.9270 3.5759 0.8918 52 1 5.6696 4.8872 -0.6908 53 1 5.7317 4.7025 1.0792 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 ZINC000130359558.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 06:12:15 Heat of formation + Delta-G solvation = -124.593902 kcal Electronic energy + Delta-G solvation = -30808.470450 eV Core-core repulsion = 26680.105394 eV Total energy + Delta-G solvation = -4128.365056 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.71 seconds Orbital eigenvalues (eV) -40.85646 -39.81855 -38.26304 -36.88756 -34.94242 -34.61564 -32.60922 -32.17920 -31.23660 -30.72434 -28.27775 -27.65731 -25.88697 -24.67551 -23.79179 -22.83674 -22.74127 -21.48785 -20.73168 -19.74619 -18.25887 -17.86841 -16.94996 -16.62745 -16.50534 -16.38641 -16.06960 -15.06467 -15.01444 -14.75546 -14.43552 -14.18331 -14.04907 -13.75143 -13.62505 -13.51745 -13.20072 -12.89842 -12.83590 -12.61376 -12.50796 -12.15195 -12.08425 -11.94011 -11.91852 -11.78608 -11.62697 -11.55136 -11.34000 -11.16044 -11.11557 -10.87495 -10.85639 -10.78609 -10.74730 -10.52935 -10.27350 -10.11205 -10.08901 -9.58673 -8.72825 -8.39134 -8.07590 -7.56999 -5.99779 -4.04139 2.01121 2.40985 3.34732 3.39116 3.41241 3.46086 3.74899 4.23316 4.35828 4.48421 4.50987 4.56211 4.63004 4.63603 4.83967 4.91378 5.01800 5.17158 5.19352 5.23815 5.31959 5.34381 5.35954 5.38886 5.40690 5.42554 5.47714 5.57686 5.58973 5.64950 5.67786 5.77149 5.83896 5.87715 5.94249 5.97663 6.00887 6.13265 6.21268 6.26111 6.31006 6.38204 6.47164 7.02723 7.21572 7.27341 7.47886 7.55677 7.60504 7.96808 8.28352 8.48840 8.95724 9.19335 9.60666 11.08258 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.015498 B = 0.002293 C = 0.002115 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1806.231271 B =12206.064125 C =13237.008541 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.152 4.152 2 C 0.061 3.939 3 O -0.363 6.363 4 C 0.460 3.540 5 O -0.501 6.501 6 C -0.108 4.108 7 C -0.078 4.078 8 C -0.113 4.113 9 C 0.057 3.943 10 N -0.514 5.514 11 C 0.065 3.935 12 H 0.053 0.947 13 C -0.139 4.139 14 C 0.509 3.491 15 O -0.519 6.519 16 N -0.606 5.606 17 C 0.082 3.918 18 C 0.248 3.752 19 C -0.523 4.523 20 H 0.056 0.944 21 C 0.060 3.940 22 N -0.896 5.896 23 Si 0.898 3.102 24 H -0.277 1.277 25 H -0.287 1.287 26 H -0.276 1.276 27 C 0.054 3.946 28 C -0.109 4.109 29 H 0.065 0.935 30 H 0.067 0.933 31 H 0.079 0.921 32 H 0.071 0.929 33 H 0.069 0.931 34 H 0.104 0.896 35 H 0.108 0.892 36 H 0.076 0.924 37 H 0.079 0.921 38 H 0.071 0.929 39 H 0.086 0.914 40 H 0.027 0.973 41 H 0.060 0.940 42 H 0.065 0.935 43 H 0.073 0.927 44 H 0.042 0.958 45 H 0.073 0.927 46 H 0.058 0.942 47 H 0.031 0.969 48 H 0.041 0.959 49 H 0.263 0.737 50 H 0.081 0.919 51 H 0.030 0.970 52 H 0.076 0.924 53 H 0.067 0.933 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -17.683 3.307 20.060 26.945 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 -0.210 4.210 2 C -0.013 4.013 3 O -0.280 6.280 4 C 0.303 3.697 5 O -0.388 6.388 6 C -0.145 4.145 7 C -0.097 4.097 8 C -0.151 4.151 9 C -0.071 4.071 10 N -0.240 5.240 11 C -0.047 4.047 12 H 0.071 0.929 13 C -0.197 4.197 14 C 0.294 3.706 15 O -0.394 6.394 16 N -0.339 5.339 17 C -0.062 4.062 18 C 0.129 3.871 19 C -0.562 4.562 20 H 0.075 0.925 21 C -0.142 4.142 22 N -0.535 5.535 23 Si 0.726 3.274 24 H -0.203 1.203 25 H -0.212 1.212 26 H -0.202 1.202 27 C -0.073 4.073 28 C -0.146 4.146 29 H 0.085 0.915 30 H 0.086 0.914 31 H 0.098 0.902 32 H 0.089 0.911 33 H 0.087 0.913 34 H 0.122 0.878 35 H 0.126 0.874 36 H 0.094 0.906 37 H 0.098 0.902 38 H 0.089 0.911 39 H 0.104 0.896 40 H 0.045 0.955 41 H 0.079 0.921 42 H 0.084 0.916 43 H 0.092 0.908 44 H 0.060 0.940 45 H 0.091 0.909 46 H 0.076 0.924 47 H 0.049 0.951 48 H 0.059 0.941 49 H 0.073 0.927 50 H 0.099 0.901 51 H 0.048 0.952 52 H 0.095 0.905 53 H 0.086 0.914 Dipole moment (debyes) X Y Z Total from point charges -18.055 3.166 18.993 26.396 hybrid contribution 1.020 -0.140 0.020 1.030 sum -17.035 3.027 19.012 25.706 Atomic orbital electron populations 1.21809 0.92656 1.02996 1.03491 1.23019 0.95334 0.80283 1.02686 1.86508 1.24926 1.32407 1.84183 1.23886 0.80355 0.93167 0.72311 1.90671 1.60116 1.43298 1.44721 1.21523 0.96575 0.90634 1.05816 1.21106 0.91184 0.97461 0.99931 1.21735 0.95056 1.01867 0.96447 1.22099 0.95192 0.88221 1.01577 1.61689 1.09294 1.20144 1.32897 1.21664 0.88708 0.98143 0.96176 0.92932 1.21785 1.01557 0.94174 1.02205 1.20068 0.82054 0.79155 0.89325 1.90676 1.50920 1.56768 1.40992 1.48185 1.15934 1.53697 1.16133 1.21662 0.94642 1.00006 0.89911 1.19246 0.96998 0.92170 0.78714 1.21388 1.37481 0.97868 0.99437 0.92534 1.24941 0.96145 0.95345 0.97771 1.69925 1.47164 1.16592 1.19847 0.86560 0.79795 0.81200 0.79869 1.20304 1.21226 1.20160 1.22122 0.95510 0.99923 0.89788 1.21617 0.94948 0.95974 1.02094 0.91549 0.91415 0.90242 0.91109 0.91307 0.87779 0.87396 0.90586 0.90241 0.91065 0.89574 0.95479 0.92104 0.91565 0.90822 0.93974 0.90860 0.92369 0.95110 0.94080 0.92722 0.90110 0.95193 0.90508 0.91444 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 -0.83 10.29 37.16 0.38 -0.44 16 2 C 0.06 0.49 6.19 37.16 0.23 0.72 16 3 O -0.36 -3.54 10.22 -39.26 -0.40 -3.94 16 4 C 0.46 4.90 7.69 36.01 0.28 5.18 16 5 O -0.50 -6.82 13.75 -18.75 -0.26 -7.08 16 6 C -0.11 -0.88 5.29 -27.88 -0.15 -1.03 16 7 C -0.08 -0.80 1.90 -90.49 -0.17 -0.97 16 8 C -0.11 -1.52 5.09 -26.65 -0.14 -1.66 16 9 C 0.06 0.89 5.14 -3.83 -0.02 0.87 16 10 N -0.51 -7.76 4.27 -228.08 -0.97 -8.73 16 11 C 0.06 1.03 1.62 -68.86 -0.11 0.92 16 12 H 0.05 0.76 6.77 -51.93 -0.35 0.41 16 13 C -0.14 -1.91 8.44 37.16 0.31 -1.60 16 14 C 0.51 10.92 5.62 -10.99 -0.06 10.86 16 15 O -0.52 -13.48 15.27 5.56 0.08 -13.40 16 16 N -0.61 -13.24 2.86 -182.95 -0.52 -13.76 16 17 C 0.08 1.35 9.87 59.84 0.59 1.94 16 18 C 0.25 6.65 5.14 -5.19 -0.03 6.62 16 19 C -0.52 -15.13 9.39 -34.44 -0.32 -15.45 16 20 H 0.06 1.63 7.81 -52.48 -0.41 1.22 16 21 C 0.06 1.74 5.46 -17.82 -0.10 1.64 16 22 N -0.90 -27.11 13.29 55.43 0.74 -26.37 16 23 Si 0.90 22.27 29.54 -169.99 -5.02 17.25 16 24 H -0.28 -6.65 7.11 56.52 0.40 -6.25 16 25 H -0.29 -6.98 7.11 56.52 0.40 -6.58 16 26 H -0.28 -6.89 7.11 56.52 0.40 -6.49 16 27 C 0.05 0.60 5.18 -3.84 -0.02 0.58 16 28 C -0.11 -0.99 5.38 -26.65 -0.14 -1.14 16 29 H 0.07 0.33 8.14 -51.93 -0.42 -0.09 16 30 H 0.07 0.37 8.14 -51.93 -0.42 -0.05 16 31 H 0.08 0.31 8.14 -51.93 -0.42 -0.12 16 32 H 0.07 0.60 8.13 -51.93 -0.42 0.18 16 33 H 0.07 0.54 8.13 -51.93 -0.42 0.12 16 34 H 0.10 0.60 8.14 -51.93 -0.42 0.17 16 35 H 0.11 0.78 8.14 -51.93 -0.42 0.36 16 36 H 0.08 0.83 7.95 -51.93 -0.41 0.42 16 37 H 0.08 1.15 6.05 -51.93 -0.31 0.84 16 38 H 0.07 1.01 8.14 -51.93 -0.42 0.58 16 39 H 0.09 1.67 6.18 -51.92 -0.32 1.35 16 40 H 0.03 0.41 8.14 -51.93 -0.42 -0.01 16 41 H 0.06 0.64 6.58 -51.93 -0.34 0.30 16 42 H 0.07 0.91 7.22 -51.93 -0.37 0.53 16 43 H 0.07 1.12 8.14 -51.93 -0.42 0.70 16 44 H 0.04 0.61 8.14 -51.93 -0.42 0.19 16 45 H 0.07 1.23 8.11 -51.93 -0.42 0.81 16 46 H 0.06 0.79 5.40 -51.93 -0.28 0.51 16 47 H 0.03 0.83 8.07 -51.93 -0.42 0.41 16 48 H 0.04 1.24 7.50 -51.93 -0.39 0.85 16 49 H 0.26 7.53 8.31 -40.82 -0.34 7.19 16 50 H 0.08 0.81 6.08 -51.93 -0.32 0.49 16 51 H 0.03 0.32 8.14 -51.93 -0.42 -0.10 16 52 H 0.08 0.74 8.14 -51.93 -0.42 0.32 16 53 H 0.07 0.46 8.14 -51.93 -0.42 0.04 16 LS Contribution 414.19 15.07 6.24 6.24 Total: -1.00 -35.47 414.19 -8.98 -44.45 By element: Atomic # 1 Polarization: 7.70 SS G_CDS: -9.40 Total: -1.71 kcal Atomic # 6 Polarization: 6.51 SS G_CDS: 0.54 Total: 7.04 kcal Atomic # 7 Polarization: -48.11 SS G_CDS: -0.76 Total: -48.86 kcal Atomic # 8 Polarization: -23.84 SS G_CDS: -0.57 Total: -24.41 kcal Atomic # 14 Polarization: 22.27 SS G_CDS: -5.02 Total: 17.25 kcal Total LS contribution 6.24 Total: 6.24 kcal Total: -35.47 -8.98 -44.45 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. ZINC000130359558.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 -80.144 kcal (2) G-P(sol) polarization free energy of solvation -35.468 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -115.612 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.982 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -44.450 kcal (6) G-S(sol) free energy of system = (1) + (5) -124.594 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.71 seconds