Wall clock time and date at job start Sun Mar 7 2021 06:32:05 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 N 1.46901 * 1 3 3 C 1.46898 * 111.00443 * 2 1 4 4 C 1.39055 * 110.99854 * 236.04434 * 2 1 3 5 5 C 1.39191 * 119.93184 * 240.00353 * 4 2 1 6 6 C 1.50697 * 119.96790 * 359.97438 * 5 4 2 7 7 O 1.42902 * 109.47290 * 285.00486 * 6 5 4 8 8 Si 1.86301 * 109.46984 * 165.00232 * 6 5 4 9 9 C 1.37629 * 120.06745 * 180.02562 * 5 4 2 10 10 C 1.39775 * 119.93266 * 359.97438 * 9 5 4 11 11 C 1.47516 * 120.07338 * 179.97438 * 10 9 5 12 12 O 1.21601 * 119.99840 * 359.97438 * 11 10 9 13 13 N 1.34779 * 120.00293 * 179.97438 * 11 10 9 14 14 C 1.46505 * 119.99899 * 179.97438 * 13 11 10 15 15 H 1.09000 * 112.84645 * 23.80718 * 14 13 11 16 16 C 1.53783 * 113.61134 * 155.00253 * 14 13 11 17 17 C 1.53785 * 87.07846 * 89.11472 * 16 14 13 18 18 H 1.08991 * 113.61806 * 270.80037 * 17 16 14 19 19 C 1.53006 * 113.61104 * 139.97688 * 17 16 14 20 20 N 1.46900 * 109.46996 * 174.99863 * 19 17 16 21 21 H 1.00903 * 109.47138 * 55.00605 * 20 19 17 22 22 C 1.46894 * 109.47268 * 175.00162 * 20 19 17 23 23 C 1.46901 * 109.47354 * 295.00691 * 20 19 17 24 24 C 1.53778 * 113.61166 * 252.49945 * 14 13 11 25 25 C 1.39814 * 119.86006 * 359.97438 * 10 9 5 26 26 C 1.37593 * 119.93201 * 359.74793 * 25 10 9 27 27 H 1.09002 * 109.47401 * 183.95136 * 1 2 3 28 28 H 1.09001 * 109.46874 * 63.95149 * 1 2 3 29 29 H 1.09004 * 109.46970 * 303.95282 * 1 2 3 30 30 H 1.09006 * 109.46770 * 56.04400 * 3 2 1 31 31 H 1.09001 * 109.47456 * 176.04615 * 3 2 1 32 32 H 1.09000 * 109.46814 * 296.04921 * 3 2 1 33 33 H 1.09000 * 109.47093 * 45.00522 * 6 5 4 34 34 H 0.96699 * 114.00359 * 59.99790 * 7 6 5 35 35 H 1.48498 * 110.00276 * 300.00002 * 8 6 5 36 36 H 1.48498 * 110.00038 * 61.32155 * 8 6 5 37 37 H 1.08000 * 120.03577 * 179.97438 * 9 5 4 38 38 H 0.96996 * 120.00036 * 0.02562 * 13 11 10 39 39 H 1.08992 * 113.61289 * 203.66530 * 16 14 13 40 40 H 1.08999 * 113.61487 * 334.57124 * 16 14 13 41 41 H 1.08998 * 109.47257 * 295.00140 * 19 17 16 42 42 H 1.09001 * 109.46762 * 55.00504 * 19 17 16 43 43 H 1.09001 * 109.47059 * 60.00103 * 22 20 19 44 44 H 1.08994 * 109.47824 * 180.02562 * 22 20 19 45 45 H 1.09008 * 109.47363 * 300.00764 * 22 20 19 46 46 H 1.09000 * 109.47432 * 59.99490 * 23 20 19 47 47 H 1.08994 * 109.47027 * 180.02562 * 23 20 19 48 48 H 1.09001 * 109.46690 * 299.99724 * 23 20 19 49 49 H 1.09003 * 113.61894 * 25.43768 * 24 14 13 50 50 H 1.09004 * 113.61118 * 156.33542 * 24 14 13 51 51 H 1.08003 * 120.03829 * 180.02562 * 25 10 9 52 52 H 1.08002 * 119.96655 * 180.25069 * 26 25 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 7 1.4690 0.0000 0.0000 3 6 1.9956 1.3714 0.0000 4 6 1.9673 -0.7251 -1.0768 5 6 2.7792 -1.8331 -0.8519 6 6 3.1174 -2.2448 0.5578 7 8 4.0868 -1.3442 1.0975 8 14 3.8120 -3.9734 0.5501 9 6 3.2743 -2.5525 -1.9156 10 6 2.9607 -2.1697 -3.2228 11 6 3.4902 -2.9382 -4.3653 12 8 4.2007 -3.9056 -4.1703 13 7 3.1864 -2.5682 -5.6252 14 6 3.7128 -3.3311 -6.7598 15 1 3.9671 -4.3581 -6.4976 16 6 2.8559 -3.2140 -8.0314 17 6 3.7051 -1.9847 -8.3955 18 1 3.3107 -1.0488 -7.9998 19 6 4.0552 -1.9004 -9.8826 20 7 4.7600 -0.6393 -10.1490 21 1 5.5629 -0.5680 -9.5420 22 6 5.2013 -0.6114 -11.5498 23 6 3.8548 0.4901 -9.8981 24 6 4.8212 -2.5982 -7.5337 25 6 2.1440 -1.0569 -3.4454 26 6 1.6474 -0.3452 -2.3776 27 1 -0.3634 -1.0252 0.0708 28 1 -0.3633 0.4513 -0.9233 29 1 -0.3633 0.5740 0.8525 30 1 1.5899 1.9163 0.8525 31 1 3.0829 1.3431 0.0709 32 1 1.7045 1.8723 -0.9233 33 1 2.2161 -2.2181 1.1702 34 1 3.7924 -0.4237 1.1319 35 1 2.8134 -4.9197 -0.0089 36 1 5.0588 -4.0162 -0.2554 37 1 3.9046 -3.4119 -1.7405 38 1 2.6199 -1.7964 -5.7807 39 1 2.9799 -4.0498 -8.7199 40 1 1.8102 -2.9791 -7.8331 41 1 4.6965 -2.7392 -10.1530 42 1 3.1403 -1.9371 -10.4739 43 1 4.3341 -0.6884 -12.2055 44 1 5.7247 0.3240 -11.7474 45 1 5.8730 -1.4495 -11.7359 46 1 3.5273 0.4694 -8.8587 47 1 4.3776 1.4257 -10.0962 48 1 2.9875 0.4131 -10.5539 49 1 5.3620 -1.8663 -6.9338 50 1 5.4825 -3.2658 -8.0862 51 1 1.8995 -0.7589 -4.4543 52 1 1.0132 0.5120 -2.5488 There are 63 doubly filled levels RHF calculation, no. of doubly occupied orbitals= 63 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). 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 s_22_16608396_13422196.mol2 52 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 06:32:05 Heat of formation + Delta-G solvation = 135.564362 kcal Electronic energy + Delta-G solvation = -29771.376109 eV Core-core repulsion = 25858.404153 eV Total energy + Delta-G solvation = -3912.971956 eV No. of doubly occupied orbitals = 63 and no. of open levels = 1 Molecular weight (most abundant/longest-lived isotopes) = 335.212 amu Computer time = 0.81 seconds Orbital eigenvalues (eV) -44.56949 -42.80282 -41.98149 -40.55660 -38.42687 -38.03910 -35.98215 -33.67670 -32.63132 -32.02206 -31.80396 -29.47527 -28.78352 -28.24598 -27.68237 -27.15435 -25.73395 -24.42753 -23.81279 -22.47409 -22.17303 -21.70240 -20.37396 -19.94722 -19.69430 -18.91546 -18.70200 -18.46800 -17.94172 -17.51893 -17.37101 -17.17288 -16.78058 -16.75120 -16.54648 -16.31833 -16.29280 -16.03323 -16.01247 -15.77674 -15.73879 -15.58943 -15.35925 -15.28161 -14.92423 -14.81615 -14.46064 -14.36367 -14.07800 -14.00762 -13.89633 -13.55536 -13.49830 -13.43509 -13.13681 -12.67165 -12.17599 -11.95060 -11.58424 -11.48171 -10.99365 -10.71301 -10.49561 -5.34736 -1.53138 -1.32722 -0.75275 0.42582 0.47051 0.66052 0.66255 0.71566 0.83092 1.13165 1.23848 1.28625 1.42168 1.54152 1.61482 1.66429 1.68779 1.73785 1.83543 1.85232 2.02223 2.09721 2.14795 2.17192 2.25440 2.32152 2.52121 2.58673 2.78644 2.92371 2.93515 3.01862 3.08233 3.17806 3.20280 3.25767 3.30494 3.37291 3.44291 3.47218 3.54680 3.67304 3.68751 3.77757 3.90736 4.05038 4.07766 4.10861 4.14518 4.20886 4.37878 4.63227 4.86618 5.15623 5.33806 6.00447 6.02153 Molecular weight = 335.21amu Principal moments of inertia in cm(-1) A = 0.015054 B = 0.002814 C = 0.002530 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1859.474388 B = 9948.543481 C =11066.361445 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.025 3.975 2 N -0.517 5.517 3 C 0.023 3.977 4 C 0.135 3.865 5 C -0.093 4.093 6 C -0.069 4.069 7 O -0.531 6.531 8 Si 0.738 3.262 9 C -0.051 4.051 10 C -0.142 4.142 11 C 0.566 3.434 12 O -0.520 6.520 13 N -0.717 5.717 14 C 0.125 3.875 15 H 0.116 0.884 16 C -0.130 4.130 17 C -0.152 4.152 18 H 0.111 0.889 19 C 0.000 4.000 20 N -0.387 5.387 21 H 0.428 0.572 22 C -0.048 4.048 23 C -0.052 4.052 24 C -0.158 4.158 25 C -0.073 4.073 26 C -0.154 4.154 27 H 0.074 0.926 28 H 0.034 0.966 29 H 0.083 0.917 30 H 0.084 0.916 31 H 0.074 0.926 32 H 0.035 0.965 33 H 0.085 0.915 34 H 0.365 0.635 35 H -0.248 1.248 36 H -0.250 1.250 37 H 0.142 0.858 38 H 0.400 0.600 39 H 0.109 0.891 40 H 0.090 0.910 41 H 0.134 0.866 42 H 0.132 0.868 43 H 0.122 0.878 44 H 0.125 0.875 45 H 0.124 0.876 46 H 0.122 0.878 47 H 0.125 0.875 48 H 0.123 0.877 49 H 0.084 0.916 50 H 0.104 0.896 51 H 0.125 0.875 52 H 0.132 0.868 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 2.332 8.883 -29.103 30.518 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 -0.121 4.121 2 N -0.238 5.238 3 C -0.123 4.123 4 C 0.040 3.960 5 C -0.094 4.094 6 C -0.179 4.179 7 O -0.337 6.337 8 Si 0.637 3.363 9 C -0.070 4.070 10 C -0.145 4.145 11 C 0.355 3.645 12 O -0.395 6.395 13 N -0.370 5.370 14 C 0.019 3.981 15 H 0.134 0.866 16 C -0.168 4.168 17 C -0.170 4.170 18 H 0.129 0.871 19 C -0.121 4.121 20 N 0.037 4.963 21 H 0.262 0.738 22 C -0.190 4.190 23 C -0.194 4.194 24 C -0.197 4.197 25 C -0.092 4.092 26 C -0.174 4.174 27 H 0.093 0.907 28 H 0.053 0.947 29 H 0.101 0.899 30 H 0.103 0.897 31 H 0.093 0.907 32 H 0.053 0.947 33 H 0.103 0.897 34 H 0.213 0.787 35 H -0.172 1.172 36 H -0.175 1.175 37 H 0.159 0.841 38 H 0.235 0.765 39 H 0.128 0.872 40 H 0.108 0.892 41 H 0.152 0.848 42 H 0.150 0.850 43 H 0.141 0.859 44 H 0.143 0.857 45 H 0.142 0.858 46 H 0.140 0.860 47 H 0.143 0.857 48 H 0.142 0.858 49 H 0.103 0.897 50 H 0.123 0.877 51 H 0.142 0.858 52 H 0.150 0.850 Dipole moment (debyes) X Y Z Total from point charges 3.333 6.720 -29.118 30.069 hybrid contribution -1.223 2.356 -1.546 3.072 sum 2.110 9.077 -30.664 32.049 Atomic orbital electron populations 1.22530 0.84574 1.03357 1.01675 1.59464 1.09504 1.14733 1.40146 1.22567 1.01227 0.86662 1.01855 1.18906 0.94369 0.93573 0.89132 1.20368 0.97430 0.94873 0.96770 1.25171 0.97895 1.05205 0.89586 1.86744 1.41253 1.21075 1.84619 0.92812 0.80512 0.73416 0.89565 1.21156 0.96561 0.98448 0.90843 1.19729 1.03047 0.98378 0.93315 1.18214 0.79885 0.83820 0.82623 1.90868 1.36575 1.27035 1.85070 1.45528 1.53473 1.33003 1.04960 1.21690 0.93434 0.97925 0.85095 0.86558 1.23338 0.99812 0.96430 0.97247 1.23346 1.01159 1.01735 0.90780 0.87062 1.24126 1.01993 0.85036 1.00952 1.45031 1.18124 1.15864 1.17232 0.73773 1.24152 1.06333 1.09664 0.78825 1.24177 0.97330 0.89383 1.08490 1.23741 0.96551 1.00932 0.98429 1.21017 0.95612 0.93780 0.98830 1.21630 1.01714 1.01167 0.92849 0.90737 0.94700 0.89865 0.89749 0.90708 0.94686 0.89743 0.78717 1.17241 1.17485 0.84104 0.76458 0.87217 0.89184 0.84833 0.85014 0.85913 0.85689 0.85764 0.86011 0.85673 0.85841 0.89724 0.87739 0.85750 0.85002 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 0.02 -0.25 9.33 60.07 0.56 0.31 16 2 N -0.52 4.72 3.70 -186.86 -0.69 4.03 16 3 C 0.02 -0.24 9.10 60.06 0.55 0.30 16 4 C 0.13 -1.15 4.66 -83.86 -0.39 -1.54 16 5 C -0.09 0.63 5.28 -104.49 -0.55 0.08 16 6 C -0.07 0.45 2.29 36.00 0.08 0.53 16 7 O -0.53 2.97 12.65 -35.23 -0.45 2.53 16 8 Si 0.74 -4.60 30.40 -169.99 -5.17 -9.77 16 9 C -0.05 0.32 8.19 -39.23 -0.32 0.00 16 10 C -0.14 1.29 5.88 -104.95 -0.62 0.67 16 11 C 0.57 -5.45 7.76 -12.48 -0.10 -5.55 16 12 O -0.52 2.60 15.94 5.28 0.08 2.68 16 13 N -0.72 11.14 5.21 -54.06 -0.28 10.86 16 14 C 0.12 -2.21 4.33 -67.12 -0.29 -2.50 16 15 H 0.12 -1.65 7.46 -51.93 -0.39 -2.04 16 16 C -0.13 2.86 7.39 -25.92 -0.19 2.67 16 17 C -0.15 4.01 3.45 -89.80 -0.31 3.70 16 18 H 0.11 -3.08 6.10 -51.93 -0.32 -3.40 16 19 C 0.00 -0.01 4.48 -3.82 -0.02 -0.03 16 20 N -0.39 12.66 0.66 -251.26 -0.17 12.50 16 21 H 0.43 -14.43 8.44 -39.29 -0.33 -14.77 16 22 C -0.05 1.53 9.19 60.06 0.55 2.08 16 23 C -0.05 1.64 8.98 60.07 0.54 2.18 16 24 C -0.16 3.51 7.43 -25.92 -0.19 3.32 16 25 C -0.07 0.88 9.53 -39.23 -0.37 0.50 16 26 C -0.15 1.64 8.53 -39.44 -0.34 1.30 16 27 H 0.07 -0.68 8.14 -51.93 -0.42 -1.11 16 28 H 0.03 -0.37 7.08 -51.93 -0.37 -0.74 16 29 H 0.08 -0.85 8.12 -51.93 -0.42 -1.27 16 30 H 0.08 -0.91 8.12 -51.93 -0.42 -1.33 16 31 H 0.07 -0.78 7.41 -51.93 -0.38 -1.17 16 32 H 0.03 -0.39 7.33 -51.93 -0.38 -0.77 16 33 H 0.08 -0.60 7.77 -51.93 -0.40 -1.00 16 34 H 0.36 -2.78 7.48 45.56 0.34 -2.44 16 35 H -0.25 1.17 7.11 56.52 0.40 1.57 16 36 H -0.25 0.90 6.81 56.52 0.38 1.28 16 37 H 0.14 -0.65 4.50 -52.49 -0.24 -0.89 16 38 H 0.40 -7.47 6.72 -40.82 -0.27 -7.74 16 39 H 0.11 -2.46 8.10 -51.93 -0.42 -2.88 16 40 H 0.09 -1.90 8.14 -51.93 -0.42 -2.32 16 41 H 0.13 -4.08 7.79 -51.93 -0.40 -4.48 16 42 H 0.13 -4.04 8.09 -51.93 -0.42 -4.46 16 43 H 0.12 -3.85 8.14 -51.93 -0.42 -4.27 16 44 H 0.12 -3.95 8.14 -51.93 -0.42 -4.37 16 45 H 0.12 -3.91 8.11 -51.92 -0.42 -4.33 16 46 H 0.12 -3.81 6.10 -51.93 -0.32 -4.13 16 47 H 0.12 -3.95 8.14 -51.93 -0.42 -4.37 16 48 H 0.12 -3.87 8.11 -51.93 -0.42 -4.30 16 49 H 0.08 -1.77 8.14 -51.93 -0.42 -2.19 16 50 H 0.10 -2.39 7.90 -51.93 -0.41 -2.80 16 51 H 0.12 -2.04 6.39 -52.48 -0.34 -2.37 16 52 H 0.13 -1.62 6.99 -52.49 -0.37 -1.99 16 LS Contribution 401.23 15.07 6.05 6.05 Total: 1.00 -37.28 401.23 -10.88 -48.16 By element: Atomic # 1 Polarization: -76.22 SS G_CDS: -8.85 Total: -85.07 kcal Atomic # 6 Polarization: 9.44 SS G_CDS: -1.41 Total: 8.04 kcal Atomic # 7 Polarization: 28.53 SS G_CDS: -1.14 Total: 27.39 kcal Atomic # 8 Polarization: 5.57 SS G_CDS: -0.36 Total: 5.21 kcal Atomic # 14 Polarization: -4.60 SS G_CDS: -5.17 Total: -9.77 kcal Total LS contribution 6.05 Total: 6.05 kcal Total: -37.28 -10.88 -48.16 kcal The number of atoms in the molecule is 52 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_16608396_13422196.mol2 52 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 183.726 kcal (2) G-P(sol) polarization free energy of solvation -37.279 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 146.448 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -10.884 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -48.162 kcal (6) G-S(sol) free energy of system = (1) + (5) 135.564 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.81 seconds