Wall clock time and date at job start Mon Mar 8 2021 05:45:23 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 * 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 1.50697 * 1 3 3 C 1.33333 * 125.94770 * 2 1 4 4 C 1.50700 * 122.71248 * 0.02562 * 3 2 1 5 5 O 1.42903 * 109.46970 * 330.00173 * 4 3 2 6 6 Si 1.86300 * 109.47036 * 210.00483 * 4 3 2 7 7 N 1.32120 * 114.57604 * 180.02562 * 3 2 1 8 8 C 1.29683 * 116.86967 * 359.97438 * 7 3 2 9 9 N 1.38609 * 124.95167 * 179.97438 * 8 7 3 10 10 C 1.46501 * 120.00334 * 179.97438 * 9 8 7 11 11 H 1.09003 * 109.46741 * 34.99981 * 10 9 8 12 12 C 1.52999 * 109.47283 * 154.99764 * 10 9 8 13 13 C 1.52994 * 109.47024 * 60.00165 * 12 10 9 14 14 C 1.53004 * 109.47215 * 60.00051 * 13 12 10 15 15 H 1.08995 * 109.47216 * 59.99918 * 14 13 12 16 16 N 1.46498 * 109.47065 * 179.97438 * 14 13 12 17 17 C 1.34777 * 119.99828 * 204.72115 * 16 14 13 18 18 O 1.21513 * 119.99898 * 0.28095 * 17 16 14 19 19 O 1.34638 * 120.00235 * 180.27525 * 17 16 14 20 20 C 1.45195 * 117.00135 * 180.02562 * 19 17 16 21 21 C 1.52999 * 109.47224 * 60.00489 * 20 19 17 22 22 C 1.53005 * 109.47161 * 180.02562 * 20 19 17 23 23 C 1.53002 * 109.47089 * 299.99988 * 20 19 17 24 24 C 1.52999 * 109.47083 * 299.99913 * 14 13 12 25 25 C 1.52997 * 109.47229 * 275.00119 * 10 9 8 26 26 S 1.70970 * 110.10139 * 0.24364 * 8 7 3 27 27 H 1.08991 * 109.47504 * 90.00448 * 1 2 3 28 28 H 1.09008 * 109.46925 * 210.00487 * 1 2 3 29 29 H 1.09000 * 109.47263 * 329.99673 * 1 2 3 30 30 H 1.08997 * 109.46912 * 90.00460 * 4 3 2 31 31 H 0.96701 * 114.00007 * 300.00139 * 5 4 3 32 32 H 1.48504 * 109.99728 * 180.02562 * 6 4 3 33 33 H 1.48501 * 109.99858 * 301.31599 * 6 4 3 34 34 H 0.97004 * 120.00136 * 359.97438 * 9 8 7 35 35 H 1.08996 * 109.47245 * 300.00197 * 12 10 9 36 36 H 1.09003 * 109.46809 * 180.02562 * 12 10 9 37 37 H 1.08994 * 109.47599 * 300.00048 * 13 12 10 38 38 H 1.08998 * 109.47530 * 179.97438 * 13 12 10 39 39 H 0.97001 * 120.00384 * 25.00562 * 16 14 13 40 40 H 1.09001 * 109.47095 * 59.99964 * 21 20 19 41 41 H 1.09006 * 109.47298 * 180.02562 * 21 20 19 42 42 H 1.09003 * 109.46856 * 299.99470 * 21 20 19 43 43 H 1.08995 * 109.47042 * 59.99563 * 22 20 19 44 44 H 1.08992 * 109.47205 * 180.02562 * 22 20 19 45 45 H 1.09001 * 109.46587 * 300.00252 * 22 20 19 46 46 H 1.09003 * 109.46840 * 60.00621 * 23 20 19 47 47 H 1.09006 * 109.47115 * 179.97438 * 23 20 19 48 48 H 1.08995 * 109.47291 * 299.99982 * 23 20 19 49 49 H 1.08996 * 109.47245 * 179.97438 * 24 14 13 50 50 H 1.08995 * 109.47098 * 300.00077 * 24 14 13 51 51 H 1.08996 * 109.47253 * 59.99709 * 25 10 9 52 52 H 1.09003 * 109.47446 * 179.97438 * 25 10 9 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 1.5070 0.0000 0.0000 3 6 2.2897 1.0794 0.0000 4 6 1.7413 2.4831 0.0006 5 8 0.4809 2.5023 -0.6726 6 14 2.9318 3.6152 -0.8779 7 7 3.5850 0.8189 -0.0005 8 6 3.9315 -0.4308 -0.0005 9 7 5.2384 -0.8924 -0.0015 10 6 5.5067 -2.3327 -0.0007 11 1 4.7449 -2.8443 -0.5890 12 6 6.8846 -2.5952 -0.6116 13 6 7.9537 -1.8769 0.2141 14 6 7.9250 -2.4003 1.6515 15 1 8.1246 -3.4718 1.6521 16 7 8.9492 -1.7130 2.4420 17 6 9.4609 -2.3026 3.5406 18 8 9.0765 -3.4065 3.8725 19 8 10.3981 -1.6687 4.2703 20 6 10.9046 -2.3638 5.4401 21 6 11.5430 -3.6863 5.0108 22 6 11.9527 -1.4935 6.1366 23 6 9.7515 -2.6439 6.4059 24 6 6.5471 -2.1378 2.2624 25 6 5.4779 -2.8560 1.4366 26 16 2.5413 -1.4260 -0.0065 27 1 -0.3634 -0.0001 -1.0276 28 1 -0.3633 -0.8900 0.5140 29 1 -0.3634 0.8899 0.5139 30 1 1.6095 2.8212 1.0284 31 1 0.5228 2.2127 -1.5943 32 1 2.4027 5.0028 -0.8837 33 1 4.2558 3.5798 -0.2064 34 1 5.9756 -0.2618 -0.0027 35 1 6.9051 -2.2223 -1.6356 36 1 7.0839 -3.6668 -0.6114 37 1 7.7543 -0.8054 0.2136 38 1 8.9355 -2.0642 -0.2208 39 1 9.2561 -0.8317 2.1771 40 1 12.3645 -3.4867 4.3227 41 1 11.9229 -4.2084 5.8890 42 1 10.7961 -4.3062 4.5149 43 1 11.4976 -0.5515 6.4424 44 1 12.3332 -2.0155 7.0144 45 1 12.7742 -1.2936 5.4486 46 1 9.0046 -3.2638 5.9100 47 1 10.1317 -3.1662 7.2839 48 1 9.2968 -1.7017 6.7118 49 1 6.5265 -2.5110 3.2863 50 1 6.3476 -1.0663 2.2619 51 1 4.4962 -2.6690 1.8718 52 1 5.6770 -3.9277 1.4372 There are 67 doubly filled levels RHF calculation, no. of doubly occupied orbitals= 67 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). S: (AM1): M.J.S. DEWAR, Y.-C. YUAN, INORGANIC CHEM., 29, 589 (1990) 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=GENORG IOFR=1.4345 ALPHA=0.00 BETA=0.00 GAMMA=38.93 & DIELEC=2.06 FACARB=0.00 FEHALO=0.00 DEV s_27_12867096_15704122.mol2 52 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Mon Mar 8 2021 05:45:23 Heat of formation + Delta-G solvation = -70.905065 kcal Electronic energy + Delta-G solvation = -32417.270902 eV Core-core repulsion = 28123.933934 eV Total energy + Delta-G solvation = -4293.336968 eV No. of doubly occupied orbitals = 67 and no. of open levels = 1 Molecular weight (most abundant/longest-lived isotopes) = 370.176 amu Computer time = 1.21 seconds Orbital eigenvalues (eV) -41.85824 -41.11823 -40.45201 -38.35761 -37.62823 -36.22866 -35.11043 -34.09966 -32.41745 -32.13248 -30.11667 -28.81321 -28.33668 -28.29778 -25.59729 -24.56332 -24.45912 -23.89266 -22.59667 -21.29815 -20.77560 -20.61623 -19.19991 -18.68370 -17.86023 -17.78376 -17.51877 -17.07092 -16.89245 -16.59028 -16.32313 -16.03113 -15.56682 -15.47396 -15.43676 -15.21873 -14.96452 -14.52759 -14.18947 -14.14020 -14.05218 -13.81079 -13.74849 -13.51751 -13.49038 -13.37975 -13.27572 -13.12203 -12.85435 -12.83428 -12.67965 -12.55974 -12.45787 -12.34908 -12.24809 -12.04085 -11.83788 -11.77415 -11.66307 -11.29643 -11.05704 -10.94234 -10.51448 -10.27706 -10.18122 -9.94116 -8.59086 -4.83726 0.07331 0.22386 0.83584 1.17131 1.41412 1.86155 1.88964 1.92867 1.98090 2.26767 3.06220 3.33433 3.38982 3.42703 3.57331 3.63528 3.76936 3.77611 3.82158 3.89443 3.96387 4.09878 4.17255 4.20085 4.22441 4.35171 4.38596 4.53903 4.55166 4.57739 4.60639 4.62019 4.69422 4.75544 4.77156 4.80307 4.81542 4.86451 4.92132 4.94264 4.97242 5.05191 5.05780 5.09971 5.17237 5.28480 5.34917 5.35307 5.45484 5.59574 5.62266 6.26896 6.40250 6.52825 7.00407 7.42217 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.065 4.065 2 C -0.240 4.240 3 C 0.067 3.933 4 C -0.034 4.034 5 O -0.536 6.536 6 Si 0.716 3.284 7 N -0.546 5.546 8 C 0.322 3.678 9 N -0.687 5.687 10 C 0.149 3.851 11 H 0.087 0.913 12 C -0.119 4.119 13 C -0.130 4.130 14 C 0.163 3.837 15 H 0.095 0.905 16 N -0.710 5.710 17 C 0.651 3.349 18 O -0.565 6.565 19 O -0.366 6.366 20 C 0.137 3.863 21 C -0.184 4.184 22 C -0.142 4.142 23 C -0.184 4.184 24 C -0.129 4.129 25 C -0.135 4.135 26 S 0.098 5.902 27 H 0.071 0.929 28 H 0.058 0.942 29 H 0.091 0.909 30 H 0.119 0.881 31 H 0.379 0.621 32 H -0.263 1.263 33 H -0.253 1.253 34 H 0.410 0.590 35 H 0.083 0.917 36 H 0.090 0.910 37 H 0.070 0.930 38 H 0.081 0.919 39 H 0.405 0.595 40 H 0.060 0.940 41 H 0.072 0.928 42 H 0.087 0.913 43 H 0.067 0.933 44 H 0.082 0.918 45 H 0.067 0.933 46 H 0.087 0.913 47 H 0.072 0.928 48 H 0.059 0.941 49 H 0.072 0.928 50 H 0.067 0.933 51 H 0.072 0.928 52 H 0.083 0.917 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 1.642 -2.057 -3.472 4.357 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 -0.125 4.125 2 C -0.362 4.362 3 C -0.063 4.063 4 C -0.147 4.147 5 O -0.341 6.341 6 Si 0.617 3.383 7 N -0.273 5.273 8 C -0.050 4.050 9 N -0.329 5.329 10 C 0.044 3.956 11 H 0.105 0.895 12 C -0.158 4.158 13 C -0.168 4.168 14 C 0.060 3.940 15 H 0.113 0.887 16 N -0.368 5.368 17 C 0.404 3.596 18 O -0.454 6.454 19 O -0.281 6.281 20 C 0.100 3.900 21 C -0.241 4.241 22 C -0.199 4.199 23 C -0.241 4.241 24 C -0.168 4.168 25 C -0.174 4.174 26 S 0.346 5.654 27 H 0.089 0.911 28 H 0.077 0.923 29 H 0.109 0.891 30 H 0.137 0.863 31 H 0.226 0.774 32 H -0.188 1.188 33 H -0.177 1.177 34 H 0.249 0.751 35 H 0.101 0.899 36 H 0.109 0.891 37 H 0.088 0.912 38 H 0.099 0.901 39 H 0.240 0.760 40 H 0.079 0.921 41 H 0.091 0.909 42 H 0.106 0.894 43 H 0.086 0.914 44 H 0.101 0.899 45 H 0.086 0.914 46 H 0.106 0.894 47 H 0.091 0.909 48 H 0.078 0.922 49 H 0.091 0.909 50 H 0.086 0.914 51 H 0.091 0.909 52 H 0.102 0.898 Dipole moment (debyes) X Y Z Total from point charges 2.125 -2.589 -2.593 4.235 hybrid contribution 0.087 1.068 0.651 1.254 sum 2.212 -1.521 -1.942 3.313 Atomic orbital electron populations 1.20207 0.86458 1.03117 1.02691 1.25133 1.01299 0.92749 1.17046 1.20114 0.86791 0.97087 1.02332 1.24510 0.92424 0.95623 1.02145 1.86506 1.28824 1.89653 1.29071 0.94101 0.77599 0.76438 0.90152 1.65967 1.17231 1.16678 1.27431 1.23285 0.91851 0.91439 0.98399 1.44115 1.01657 1.06918 1.80247 1.21181 0.98288 0.79282 0.96857 0.89496 1.21747 0.91994 1.02430 0.99617 1.21829 1.00440 1.00685 0.93856 1.21006 0.86050 0.98044 0.88926 0.88660 1.44814 1.43052 1.22514 1.26433 1.18112 0.78302 0.82782 0.80367 1.90915 1.63726 1.19848 1.70923 1.86308 1.53081 1.49061 1.39605 1.22110 0.93839 0.92228 0.81773 1.22521 1.01924 0.96812 1.02828 1.21881 0.97603 1.00105 1.00348 1.22522 0.99138 1.03006 0.99460 1.21907 0.93369 1.01408 1.00142 1.22026 0.99831 1.00929 0.94634 1.83984 0.96613 1.10607 1.74149 0.91083 0.92322 0.89072 0.86346 0.77367 1.18840 1.17679 0.75065 0.89856 0.89130 0.91170 0.90069 0.76019 0.92132 0.90936 0.89423 0.91419 0.89919 0.91396 0.89431 0.90929 0.92174 0.90904 0.91387 0.90886 0.89828 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 -0.07 0.01 8.95 36.00 0.32 0.33 16 2 C -0.24 -0.34 6.50 -36.02 -0.23 -0.58 16 3 C 0.07 0.14 5.92 -84.18 -0.50 -0.35 16 4 C -0.03 -0.04 2.83 36.01 0.10 0.06 16 5 O -0.54 -0.05 9.89 -35.23 -0.35 -0.39 16 6 Si 0.72 0.71 32.08 -169.99 -5.45 -4.74 16 7 N -0.55 -1.57 8.95 -11.36 -0.10 -1.67 16 8 C 0.32 0.38 8.22 -87.68 -0.72 -0.34 16 9 N -0.69 0.89 4.39 -55.78 -0.24 0.65 16 10 C 0.15 -0.44 2.74 -67.93 -0.19 -0.63 16 11 H 0.09 -0.27 7.25 -51.93 -0.38 -0.64 16 12 C -0.12 0.52 5.61 -26.73 -0.15 0.37 16 13 C -0.13 0.51 5.22 -26.73 -0.14 0.37 16 14 C 0.16 -0.27 2.45 -67.93 -0.17 -0.44 16 15 H 0.10 -0.03 7.58 -51.93 -0.39 -0.43 16 16 N -0.71 0.31 5.08 -58.73 -0.30 0.02 16 17 C 0.65 1.69 8.02 54.06 0.43 2.12 16 18 O -0.57 -2.65 11.55 -19.28 -0.22 -2.88 16 19 O -0.37 -0.92 9.94 -40.32 -0.40 -1.32 16 20 C 0.14 0.20 1.13 -90.62 -0.10 0.09 16 21 C -0.18 -0.24 8.37 37.16 0.31 0.07 16 22 C -0.14 0.07 8.85 37.16 0.33 0.40 16 23 C -0.18 -0.28 8.37 37.16 0.31 0.03 16 24 C -0.13 0.12 5.34 -26.73 -0.14 -0.02 16 25 C -0.13 0.28 5.62 -26.73 -0.15 0.13 16 26 S 0.10 0.05 21.70 -107.50 -2.33 -2.29 16 27 H 0.07 -0.09 8.14 -51.93 -0.42 -0.52 16 28 H 0.06 -0.02 8.14 -51.92 -0.42 -0.44 16 29 H 0.09 0.06 6.61 -51.93 -0.34 -0.28 16 30 H 0.12 0.20 7.96 -51.93 -0.41 -0.21 16 31 H 0.38 -1.26 8.68 45.56 0.40 -0.86 16 32 H -0.26 -0.91 7.11 56.52 0.40 -0.51 16 33 H -0.25 -1.11 7.11 56.52 0.40 -0.70 16 34 H 0.41 -0.69 6.99 -40.82 -0.29 -0.98 16 35 H 0.08 -0.38 8.14 -51.93 -0.42 -0.81 16 36 H 0.09 -0.45 8.14 -51.93 -0.42 -0.87 16 37 H 0.07 -0.30 6.51 -51.93 -0.34 -0.64 16 38 H 0.08 -0.33 8.14 -51.93 -0.42 -0.75 16 39 H 0.41 -0.88 8.71 -40.82 -0.36 -1.24 16 40 H 0.06 0.06 8.14 -51.93 -0.42 -0.36 16 41 H 0.07 0.00 8.14 -51.93 -0.42 -0.42 16 42 H 0.09 0.29 5.88 -51.93 -0.31 -0.02 16 43 H 0.07 -0.03 8.14 -51.93 -0.42 -0.45 16 44 H 0.08 -0.15 8.14 -51.93 -0.42 -0.57 16 45 H 0.07 -0.04 8.14 -51.93 -0.42 -0.47 16 46 H 0.09 0.31 5.88 -51.93 -0.31 0.00 16 47 H 0.07 0.01 8.14 -51.93 -0.42 -0.41 16 48 H 0.06 0.09 8.14 -51.93 -0.42 -0.34 16 49 H 0.07 0.10 8.14 -51.93 -0.42 -0.32 16 50 H 0.07 -0.01 7.60 -51.93 -0.39 -0.41 16 51 H 0.07 -0.06 8.06 -51.93 -0.42 -0.48 16 52 H 0.08 -0.23 8.14 -51.93 -0.42 -0.65 16 LS Contribution 413.62 15.07 6.23 6.23 Total: 0.00 -7.06 413.62 -12.50 -19.56 By element: Atomic # 1 Polarization: -6.13 SS G_CDS: -8.65 Total: -14.78 kcal Atomic # 6 Polarization: 2.30 SS G_CDS: -0.68 Total: 1.61 kcal Atomic # 7 Polarization: -0.36 SS G_CDS: -0.64 Total: -1.01 kcal Atomic # 8 Polarization: -3.62 SS G_CDS: -0.97 Total: -4.60 kcal Atomic # 14 Polarization: 0.71 SS G_CDS: -5.45 Total: -4.74 kcal Atomic # 16 Polarization: 0.05 SS G_CDS: -2.33 Total: -2.29 kcal Total LS contribution 6.23 Total: 6.23 kcal Total: -7.06 -12.50 -19.56 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_27_12867096_15704122.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 -51.341 kcal (2) G-P(sol) polarization free energy of solvation -7.061 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -58.402 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -12.503 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -19.564 kcal (6) G-S(sol) free energy of system = (1) + (5) -70.905 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.21 seconds