Wall clock time and date at job start Sat Apr 11 2020 06:13:16 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 1.42900 * 113.99892 * 2 1 4 4 C 1.52990 * 109.47109 * 180.02562 * 3 2 1 5 5 C 1.52998 * 109.47202 * 179.97438 * 4 3 2 6 6 O 1.42904 * 109.47435 * 179.97438 * 5 4 3 7 7 C 1.42900 * 114.00022 * 179.97438 * 6 5 4 8 8 C 1.53006 * 109.46912 * 180.02562 * 7 6 5 9 9 C 1.50705 * 109.46914 * 180.02562 * 8 7 6 10 10 O 1.21273 * 119.99875 * 0.02562 * 9 8 7 11 11 N 1.34772 * 119.99546 * 180.02562 * 9 8 7 12 12 C 1.46502 * 119.99808 * 180.02562 * 11 9 8 13 13 C 1.54190 * 112.24671 * 299.45465 * 12 11 9 14 14 C 1.54855 * 104.29575 * 261.20923 * 13 12 11 15 15 C 1.56226 * 103.17729 * 322.23567 * 14 13 12 16 16 C 1.54181 * 103.64861 * 37.34023 * 15 14 13 17 17 H 1.09002 * 111.61425 * 99.67375 * 16 15 14 18 18 C 1.53792 * 109.12500 * 223.52981 * 16 15 14 19 19 N 1.47222 * 106.36089 * 133.48696 * 18 16 15 20 20 C 1.36933 * 126.70701 * 148.78208 * 19 18 16 21 21 H 1.07993 * 120.00623 * 179.97438 * 20 19 18 22 22 C 1.38823 * 119.99542 * 359.97438 * 20 19 18 23 23 N 1.31615 * 119.99956 * 0.02562 * 22 20 19 24 24 Si 1.86800 * 119.99560 * 179.97438 * 22 20 19 25 25 H 1.48500 * 109.46777 * 90.00341 * 24 22 20 26 26 H 1.48500 * 109.46889 * 210.00087 * 24 22 20 27 27 H 1.48501 * 109.47322 * 330.00288 * 24 22 20 28 28 C 1.47227 * 106.59521 * 328.76666 * 19 18 16 29 29 H 1.09001 * 109.47332 * 179.97438 * 1 2 3 30 30 H 1.09003 * 109.47714 * 300.00085 * 1 2 3 31 31 H 1.09004 * 109.47208 * 60.00069 * 1 2 3 32 32 H 1.09000 * 109.46988 * 59.99392 * 3 2 1 33 33 H 1.09004 * 109.46793 * 300.00388 * 3 2 1 34 34 H 1.08995 * 109.47694 * 60.00231 * 4 3 2 35 35 H 1.09004 * 109.47533 * 299.99841 * 4 3 2 36 36 H 1.09002 * 109.47321 * 59.99938 * 5 4 3 37 37 H 1.08999 * 109.47375 * 299.99968 * 5 4 3 38 38 H 1.08999 * 109.47012 * 60.00232 * 7 6 5 39 39 H 1.09001 * 109.47151 * 300.00508 * 7 6 5 40 40 H 1.09006 * 109.46938 * 60.00321 * 8 7 6 41 41 H 1.08995 * 109.46829 * 300.00468 * 8 7 6 42 42 H 0.97001 * 120.00306 * 359.97438 * 11 9 8 43 43 H 1.08996 * 110.46736 * 19.91205 * 13 12 11 44 44 H 1.09000 * 110.46437 * 142.50960 * 13 12 11 45 45 H 1.08999 * 110.75805 * 80.17689 * 14 13 12 46 46 H 1.08996 * 110.75611 * 203.54885 * 14 13 12 47 47 H 1.09001 * 109.69558 * 279.36384 * 15 14 13 48 48 H 1.09002 * 111.85325 * 156.36287 * 15 14 13 49 49 H 1.09010 * 110.07705 * 252.71077 * 18 16 15 50 50 H 1.08999 * 110.08176 * 14.20342 * 18 16 15 51 51 H 0.97002 * 119.99785 * 180.02562 * 23 22 20 52 52 H 1.08992 * 110.07701 * 150.45658 * 28 19 18 53 53 H 1.09004 * 110.07363 * 272.01069 * 28 19 18 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 2.0102 1.3055 0.0000 4 6 3.5353 1.1847 -0.0006 5 6 4.1576 2.5824 -0.0013 6 8 5.5822 2.4697 -0.0013 7 6 6.2646 3.7252 -0.0025 8 6 7.7756 3.4843 -0.0030 9 6 8.4953 4.8084 -0.0036 10 8 7.8621 5.8427 -0.0031 11 7 9.8426 4.8430 -0.0047 12 6 10.5423 6.1301 -0.0047 13 6 10.2035 6.9787 -1.2467 14 6 11.3924 6.7388 -2.2095 15 6 12.6226 6.6790 -1.2485 16 6 12.0783 5.9462 -0.0059 17 1 12.3581 4.8927 -0.0065 18 6 12.5750 6.6640 1.2602 19 7 11.4043 6.8088 2.1411 20 6 11.4063 6.8160 3.5104 21 1 10.4785 6.9303 4.0512 22 6 12.6010 6.6764 4.2035 23 7 13.7317 6.5377 3.5445 24 14 12.6037 6.6870 6.0715 25 1 12.4374 5.2998 6.5745 26 1 13.8918 7.2402 6.5614 27 1 11.4841 7.5296 6.5634 28 6 10.2310 6.9446 1.2622 29 1 -0.3634 -1.0277 -0.0005 30 1 -0.3634 0.5138 0.8900 31 1 -0.3634 0.5138 -0.8900 32 1 1.6885 1.8464 0.8899 33 1 1.6885 1.8464 -0.8900 34 1 3.8567 0.6440 -0.8908 35 1 3.8574 0.6436 0.8891 36 1 3.8364 3.1236 0.8887 37 1 3.8356 3.1231 -0.8912 38 1 5.9868 4.2905 0.8871 39 1 5.9866 4.2890 -0.8929 40 1 8.0531 2.9191 -0.8928 41 1 8.0539 2.9203 0.8872 42 1 10.3490 4.0157 -0.0047 43 1 9.2722 6.6378 -1.6988 44 1 10.1355 8.0335 -0.9806 45 1 11.2784 5.7908 -2.7354 46 1 11.4905 7.5637 -2.9151 47 1 12.9348 7.6904 -0.9881 48 1 13.4524 6.1236 -1.6856 49 1 13.3422 6.0663 1.7527 50 1 12.9738 7.6451 1.0022 51 1 14.5665 6.4398 4.0288 52 1 9.3454 6.5449 1.7560 53 1 10.0757 7.9924 1.0048 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 ZINC001111931742.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 06:13:16 Heat of formation + Delta-G solvation = -112.530718 kcal Electronic energy + Delta-G solvation = -30091.713218 eV Core-core repulsion = 25963.871261 eV Total energy + Delta-G solvation = -4127.841957 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 2.34 seconds Orbital eigenvalues (eV) -40.24108 -38.74515 -38.28354 -37.66060 -34.49151 -33.45603 -33.35397 -31.52419 -31.13230 -29.39832 -27.77874 -27.34766 -25.25530 -24.71564 -24.52533 -23.40715 -21.97893 -21.14972 -20.26596 -19.31684 -18.79322 -17.49809 -17.01880 -16.94330 -16.64418 -16.18312 -15.93037 -15.65446 -15.16024 -15.10567 -14.88914 -14.47833 -14.41082 -13.94223 -13.84816 -13.47478 -13.38516 -12.90710 -12.59867 -12.42884 -12.28007 -11.95924 -11.87936 -11.64176 -11.59320 -11.41271 -11.22517 -11.19248 -11.16050 -10.97603 -10.79106 -10.72982 -10.58913 -10.27336 -10.22742 -10.11195 -9.93624 -9.77642 -9.74196 -9.52558 -9.37375 -8.73852 -8.55494 -6.85168 -5.63513 -3.08010 2.86654 2.90932 3.39412 3.41777 3.44991 3.47021 3.98648 4.48466 4.53439 4.69469 4.75297 4.81413 4.88291 4.88789 4.94797 4.96086 5.03100 5.05686 5.06958 5.15988 5.23263 5.25466 5.31404 5.48239 5.48923 5.65750 5.70499 5.71100 5.78732 5.80314 5.82937 5.84268 5.89869 6.02545 6.06225 6.15924 6.27145 6.41735 6.48570 6.57225 6.69047 6.69945 6.77742 6.84913 6.99403 7.18098 7.46772 7.61933 7.79044 7.88494 8.40075 8.52006 9.22035 9.82470 10.50268 11.37352 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.011720 B = 0.002134 C = 0.001864 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2388.551117 B =13115.888648 C =15014.173649 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.031 3.969 2 O -0.391 6.391 3 C 0.064 3.936 4 C -0.119 4.119 5 C 0.068 3.932 6 O -0.390 6.390 7 C 0.081 3.919 8 C -0.141 4.141 9 C 0.517 3.483 10 O -0.542 6.542 11 N -0.702 5.702 12 C 0.161 3.839 13 C -0.116 4.116 14 C -0.124 4.124 15 C -0.114 4.114 16 C -0.113 4.113 17 H 0.073 0.927 18 C 0.140 3.860 19 N -0.598 5.598 20 C -0.214 4.214 21 H 0.077 0.923 22 C -0.014 4.014 23 N -0.923 5.923 24 Si 0.915 3.085 25 H -0.289 1.289 26 H -0.290 1.290 27 H -0.282 1.282 28 C 0.137 3.863 29 H 0.087 0.913 30 H 0.042 0.958 31 H 0.041 0.959 32 H 0.052 0.948 33 H 0.051 0.949 34 H 0.079 0.921 35 H 0.080 0.920 36 H 0.052 0.948 37 H 0.051 0.949 38 H 0.060 0.940 39 H 0.057 0.943 40 H 0.098 0.902 41 H 0.101 0.899 42 H 0.398 0.602 43 H 0.068 0.932 44 H 0.074 0.926 45 H 0.058 0.942 46 H 0.060 0.940 47 H 0.069 0.931 48 H 0.063 0.937 49 H 0.123 0.877 50 H 0.012 0.988 51 H 0.252 0.748 52 H 0.047 0.953 53 H 0.026 0.974 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -17.033 -9.451 -12.433 23.109 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 -0.065 4.065 2 O -0.310 6.310 3 C -0.013 4.013 4 C -0.157 4.157 5 C -0.009 4.009 6 O -0.310 6.310 7 C 0.004 3.996 8 C -0.181 4.181 9 C 0.302 3.698 10 O -0.420 6.420 11 N -0.352 5.352 12 C 0.074 3.926 13 C -0.155 4.155 14 C -0.162 4.162 15 C -0.152 4.152 16 C -0.134 4.134 17 H 0.091 0.909 18 C 0.014 3.986 19 N -0.321 5.321 20 C -0.343 4.343 21 H 0.095 0.905 22 C -0.209 4.209 23 N -0.572 5.572 24 Si 0.746 3.254 25 H -0.216 1.216 26 H -0.216 1.216 27 H -0.208 1.208 28 C 0.009 3.991 29 H 0.105 0.895 30 H 0.060 0.940 31 H 0.060 0.940 32 H 0.070 0.930 33 H 0.070 0.930 34 H 0.098 0.902 35 H 0.099 0.901 36 H 0.070 0.930 37 H 0.069 0.931 38 H 0.078 0.922 39 H 0.076 0.924 40 H 0.116 0.884 41 H 0.119 0.881 42 H 0.233 0.767 43 H 0.086 0.914 44 H 0.092 0.908 45 H 0.077 0.923 46 H 0.079 0.921 47 H 0.088 0.912 48 H 0.082 0.918 49 H 0.140 0.860 50 H 0.030 0.970 51 H 0.063 0.937 52 H 0.065 0.935 53 H 0.043 0.957 Dipole moment (debyes) X Y Z Total from point charges -17.126 -9.032 -12.193 22.881 hybrid contribution -0.094 0.090 0.970 0.979 sum -17.219 -8.943 -11.223 22.415 Atomic orbital electron populations 1.22758 0.80768 1.02902 1.00077 1.87870 1.19889 1.27833 1.95451 1.22376 0.93549 0.84840 1.00502 1.21367 0.92567 0.96939 1.04794 1.22254 0.81331 0.96686 1.00584 1.87781 1.17684 1.29913 1.95603 1.22119 0.90864 0.84825 1.01798 1.21481 0.94527 0.96560 1.05507 1.20220 0.82653 0.90664 0.76218 1.90693 1.66490 1.35064 1.49755 1.45965 1.05758 1.09312 1.74187 1.21718 0.91778 0.83011 0.96093 1.22612 0.97915 1.00007 0.94927 1.22765 0.95368 1.00636 0.97398 1.22684 0.96685 1.00814 0.95004 1.22994 0.92094 1.00147 0.98124 0.90891 1.22072 0.92344 0.97561 0.86624 1.44586 1.01466 1.84732 1.01348 1.19102 0.93585 1.41673 0.79905 0.90539 1.24762 0.95220 1.02679 0.98193 1.69598 0.97461 1.57282 1.32853 0.86056 0.76879 0.77626 0.84883 1.21647 1.21639 1.20769 1.21673 0.91755 0.95872 0.89790 0.89494 0.93952 0.94001 0.92976 0.93050 0.90190 0.90097 0.93003 0.93106 0.92216 0.92432 0.88372 0.88064 0.76740 0.91365 0.90788 0.92280 0.92086 0.91227 0.91826 0.86010 0.97041 0.93714 0.93483 0.95674 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 0.03 0.18 11.01 101.05 1.11 1.29 16 2 O -0.39 -3.53 10.70 -35.23 -0.38 -3.91 16 3 C 0.06 0.48 5.94 37.15 0.22 0.70 16 4 C -0.12 -1.01 5.95 -26.74 -0.16 -1.16 16 5 C 0.07 0.62 5.94 37.16 0.22 0.84 16 6 O -0.39 -4.52 10.34 -35.23 -0.36 -4.89 16 7 C 0.08 0.96 5.23 37.16 0.19 1.16 16 8 C -0.14 -1.65 6.07 -27.88 -0.17 -1.82 16 9 C 0.52 7.90 6.84 -10.99 -0.08 7.82 16 10 O -0.54 -9.98 13.56 5.56 0.08 -9.90 16 11 N -0.70 -10.85 5.24 -45.82 -0.24 -11.09 16 12 C 0.16 2.88 0.93 -129.89 -0.12 2.76 16 13 C -0.12 -1.87 5.66 -25.13 -0.14 -2.01 16 14 C -0.12 -1.70 6.92 -24.02 -0.17 -1.86 16 15 C -0.11 -1.74 6.48 -24.38 -0.16 -1.90 16 16 C -0.11 -2.06 3.62 -88.70 -0.32 -2.38 16 17 H 0.07 1.26 7.69 -51.93 -0.40 0.86 16 18 C 0.14 3.31 5.77 -3.24 -0.02 3.29 16 19 N -0.60 -15.41 3.39 -171.09 -0.58 -15.99 16 20 C -0.21 -6.03 10.34 -15.06 -0.16 -6.18 16 21 H 0.08 2.12 7.83 -52.49 -0.41 1.71 16 22 C -0.01 -0.39 5.49 -17.43 -0.10 -0.48 16 23 N -0.92 -26.53 10.08 55.49 0.56 -25.97 16 24 Si 0.91 22.18 29.55 -169.99 -5.02 17.16 16 25 H -0.29 -6.97 7.11 56.52 0.40 -6.57 16 26 H -0.29 -7.07 7.11 56.52 0.40 -6.67 16 27 H -0.28 -6.74 7.11 56.52 0.40 -6.34 16 28 C 0.14 3.05 6.03 -3.23 -0.02 3.03 16 29 H 0.09 0.40 8.14 -51.93 -0.42 -0.03 16 30 H 0.04 0.21 8.14 -51.93 -0.42 -0.22 16 31 H 0.04 0.20 8.14 -51.93 -0.42 -0.23 16 32 H 0.05 0.34 8.14 -51.93 -0.42 -0.08 16 33 H 0.05 0.32 8.14 -51.93 -0.42 -0.10 16 34 H 0.08 0.70 8.14 -51.93 -0.42 0.28 16 35 H 0.08 0.74 8.14 -51.93 -0.42 0.32 16 36 H 0.05 0.44 8.14 -51.93 -0.42 0.01 16 37 H 0.05 0.40 8.14 -51.93 -0.42 -0.02 16 38 H 0.06 0.76 8.10 -51.93 -0.42 0.34 16 39 H 0.06 0.68 8.10 -51.93 -0.42 0.26 16 40 H 0.10 0.96 8.14 -51.93 -0.42 0.53 16 41 H 0.10 1.14 8.14 -51.93 -0.42 0.71 16 42 H 0.40 5.25 8.28 -40.82 -0.34 4.91 16 43 H 0.07 1.11 6.69 -51.93 -0.35 0.76 16 44 H 0.07 1.25 7.17 -51.93 -0.37 0.88 16 45 H 0.06 0.74 8.14 -51.93 -0.42 0.32 16 46 H 0.06 0.75 8.14 -51.93 -0.42 0.33 16 47 H 0.07 1.13 7.18 -51.93 -0.37 0.76 16 48 H 0.06 0.87 8.14 -51.93 -0.42 0.44 16 49 H 0.12 3.25 5.45 -51.92 -0.28 2.97 16 50 H 0.01 0.29 7.13 -51.93 -0.37 -0.08 16 51 H 0.25 7.03 8.31 -40.82 -0.34 6.69 16 52 H 0.05 1.11 6.84 -51.93 -0.36 0.76 16 53 H 0.03 0.58 7.12 -51.93 -0.37 0.21 16 LS Contribution 412.30 15.07 6.21 6.21 Total: -1.00 -32.45 412.30 -9.11 -41.55 By element: Atomic # 1 Polarization: 13.25 SS G_CDS: -9.51 Total: 3.74 kcal Atomic # 6 Polarization: 2.94 SS G_CDS: 0.15 Total: 3.08 kcal Atomic # 7 Polarization: -52.79 SS G_CDS: -0.26 Total: -53.05 kcal Atomic # 8 Polarization: -18.04 SS G_CDS: -0.67 Total: -18.70 kcal Atomic # 14 Polarization: 22.18 SS G_CDS: -5.02 Total: 17.16 kcal Total LS contribution 6.21 Total: 6.21 kcal Total: -32.45 -9.11 -41.55 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. ZINC001111931742.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 -70.978 kcal (2) G-P(sol) polarization free energy of solvation -32.447 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -103.425 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.106 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -41.553 kcal (6) G-S(sol) free energy of system = (1) + (5) -112.531 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 2.34 seconds