Wall clock time and date at job start Sun Mar 7 2021 05:41:49 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 O 1.42899 * 1 3 3 C 1.35994 * 116.99506 * 2 1 4 4 C 1.39157 * 120.06900 * 179.97438 * 3 2 1 5 5 O 1.35989 * 120.07668 * 359.95840 * 4 3 2 6 6 C 1.42896 * 117.00521 * 180.02562 * 5 4 3 7 7 C 1.50692 * 109.47457 * 180.02562 * 6 5 4 8 8 O 1.21284 * 120.00049 * 359.97438 * 7 6 5 9 9 N 1.34774 * 120.00251 * 180.02562 * 7 6 5 10 10 C 1.46503 * 120.00081 * 359.97438 * 9 7 6 11 11 C 1.46504 * 120.00345 * 179.97438 * 9 7 6 12 12 H 1.08998 * 109.46860 * 65.82395 * 11 9 7 13 13 C 1.52996 * 109.46960 * 185.82411 * 11 9 7 14 14 C 1.52997 * 109.47797 * 60.00152 * 13 11 9 15 15 C 1.53006 * 109.46930 * 59.99318 * 14 13 11 16 16 H 1.09001 * 109.46567 * 60.00449 * 15 14 13 17 17 O 1.42901 * 109.47036 * 180.02562 * 15 14 13 18 18 C 1.52996 * 109.47438 * 300.00902 * 15 14 13 19 19 C 1.52993 * 109.46850 * 305.82352 * 11 9 7 20 20 C 1.38568 * 119.85169 * 179.97438 * 4 3 2 21 21 C 1.38245 * 119.99833 * 359.97438 * 20 4 3 22 22 N 1.48003 * 119.92280 * 179.97438 * 21 20 4 23 23 O 1.21796 * 120.00348 * 0.02562 * 22 21 20 24 24 O 1.21804 * 119.99947 * 180.02562 * 22 21 20 25 25 C 1.38242 * 120.14971 * 0.02562 * 21 20 4 26 26 C 1.50703 * 119.92900 * 180.02562 * 25 21 20 27 27 O 1.42897 * 109.47151 * 74.97183 * 26 25 21 28 28 Si 1.86299 * 109.47113 * 194.97132 * 26 25 21 29 29 C 1.38247 * 120.14802 * 359.97438 * 25 21 20 30 30 H 1.09004 * 109.47023 * 179.97438 * 1 2 3 31 31 H 1.08993 * 109.47404 * 299.99301 * 1 2 3 32 32 H 1.09001 * 109.47456 * 59.99688 * 1 2 3 33 33 H 1.09004 * 109.47046 * 300.00712 * 6 5 4 34 34 H 1.09003 * 109.46947 * 59.99796 * 6 5 4 35 35 H 1.08995 * 109.47250 * 84.07677 * 10 9 7 36 36 H 1.08995 * 109.47318 * 204.08331 * 10 9 7 37 37 H 1.09007 * 109.46803 * 324.07990 * 10 9 7 38 38 H 1.09008 * 109.47184 * 180.02562 * 13 11 9 39 39 H 1.08999 * 109.47205 * 299.99706 * 13 11 9 40 40 H 1.08989 * 109.47493 * 179.97438 * 14 13 11 41 41 H 1.09001 * 109.47129 * 300.00111 * 14 13 11 42 42 H 0.96700 * 113.99520 * 180.02562 * 17 15 14 43 43 H 1.08999 * 109.47205 * 180.02562 * 18 15 14 44 44 H 1.09001 * 109.46872 * 299.99360 * 18 15 14 45 45 H 1.08997 * 109.47771 * 59.99974 * 19 11 9 46 46 H 1.09007 * 109.47035 * 180.02562 * 19 11 9 47 47 H 1.07997 * 119.99890 * 179.72641 * 20 4 3 48 48 H 1.08993 * 109.47057 * 314.97117 * 26 25 21 49 49 H 0.96704 * 113.99851 * 60.00073 * 27 26 25 50 50 H 1.48502 * 110.00073 * 179.97438 * 28 26 25 51 51 H 1.48501 * 110.00250 * 301.31768 * 28 26 25 52 52 H 1.08002 * 120.00465 * 179.97438 * 29 25 21 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 2.0463 1.2118 0.0000 4 6 3.4359 1.2864 0.0005 5 8 4.1795 0.1478 0.0019 6 6 5.6003 0.3008 0.0030 7 6 6.2518 -1.0579 0.0038 8 8 5.5670 -2.0589 0.0040 9 7 7.5956 -1.1609 0.0054 10 6 8.4230 0.0481 0.0057 11 6 8.2292 -2.4819 0.0067 12 1 8.0078 -2.9919 -0.9308 13 6 9.7434 -2.3211 0.1547 14 6 10.0542 -1.6052 1.4707 15 6 9.5121 -2.4296 2.6401 16 1 9.9834 -3.4124 2.6411 17 8 9.8018 -1.7606 3.8692 18 6 7.9978 -2.5904 2.4921 19 6 7.6871 -3.3062 1.1761 20 6 4.0602 2.5235 0.0000 21 6 3.3027 3.6799 -0.0016 22 7 3.9712 5.0004 -0.0016 23 8 5.1873 5.0673 -0.0007 24 8 3.3052 6.0202 -0.0026 25 6 1.9223 3.6058 -0.0021 26 6 1.1014 4.8697 -0.0045 27 8 1.1355 5.4574 -1.3065 28 14 -0.6601 4.4669 0.4491 29 6 1.2930 2.3748 -0.0016 30 1 -0.3633 -1.0277 -0.0005 31 1 -0.3634 0.5137 0.8900 32 1 -0.3634 0.5139 -0.8899 33 1 5.9072 0.8501 -0.8871 34 1 5.9057 0.8513 0.8928 35 1 8.5395 0.4084 1.0278 36 1 9.4029 -0.1820 -0.4124 37 1 7.9420 0.8177 -0.5982 38 1 10.2149 -3.3040 0.1553 39 1 10.1296 -1.7339 -0.6784 40 1 11.1330 -1.4911 1.5763 41 1 9.5829 -0.6224 1.4697 42 1 9.4866 -2.2278 4.6550 43 1 7.6116 -3.1772 3.3255 44 1 7.5265 -1.6075 2.4912 45 1 6.6083 -3.4207 1.0708 46 1 8.1588 -4.2889 1.1774 47 1 5.1384 2.5842 0.0049 48 1 1.5122 5.5710 0.7216 49 1 0.7842 4.8877 -2.0046 50 1 -1.4799 5.7051 0.4509 51 1 -1.2215 3.4870 -0.5152 52 1 0.2144 2.3196 -0.0016 There are 74 doubly filled levels RHF calculation, no. of doubly occupied orbitals= 74 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=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_22_15557736_4549636.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 05:41:49 Heat of formation + Delta-G solvation = -119.874261 kcal Electronic energy + Delta-G solvation = -39644.554548 eV Core-core repulsion = 34389.025730 eV Total energy + Delta-G solvation = -5255.528818 eV No. of doubly occupied orbitals = 74 and no. of open levels = 1 Molecular weight (most abundant/longest-lived isotopes) = 397.175 amu Computer time = 1.26 seconds Orbital eigenvalues (eV) -43.22741 -42.21887 -41.79788 -40.21237 -39.36774 -39.05835 -37.60210 -37.27771 -37.11501 -35.05511 -32.71994 -32.57776 -32.31862 -30.94199 -29.46272 -28.93284 -27.86377 -27.57880 -25.82340 -24.11625 -23.89681 -23.35483 -23.07455 -21.63965 -20.74386 -20.06533 -19.65531 -19.50470 -18.72050 -18.46809 -18.28681 -18.21947 -17.97659 -17.64366 -17.50364 -17.24541 -17.01890 -16.66163 -16.56678 -16.22443 -15.95404 -15.75605 -15.55600 -15.13602 -14.88235 -14.66601 -14.56178 -14.52596 -14.09216 -13.95160 -13.88651 -13.80552 -13.54016 -13.34813 -13.18913 -13.12387 -12.85982 -12.72640 -12.59791 -12.55428 -12.31611 -12.25756 -12.16446 -12.07737 -11.92562 -11.81303 -11.63161 -11.31326 -10.99180 -10.68143 -10.55182 -10.50825 -9.80952 -9.53035 -5.18505 -1.21337 -0.50740 0.33370 0.44351 1.01231 1.11159 1.30961 1.37673 1.71186 1.77860 1.87533 2.08039 2.90751 3.00141 3.08336 3.14739 3.23931 3.31494 3.42008 3.54303 3.56548 3.63876 3.67709 3.79518 3.82555 3.85607 3.92294 3.93257 3.97374 3.98426 4.12555 4.15055 4.17185 4.20161 4.26165 4.30395 4.37563 4.38712 4.46059 4.49845 4.58159 4.67938 4.71481 4.92401 4.93523 5.00428 5.05047 5.07929 5.27066 5.41032 5.49050 5.49606 5.92086 6.11221 6.26346 6.63348 6.80146 6.95917 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.014 3.986 2 O -0.284 6.284 3 C 0.170 3.830 4 C 0.110 3.890 5 O -0.265 6.265 6 C 0.033 3.967 7 C 0.520 3.480 8 O -0.505 6.505 9 N -0.604 5.604 10 C 0.057 3.943 11 C 0.152 3.848 12 H 0.081 0.919 13 C -0.126 4.126 14 C -0.136 4.136 15 C 0.105 3.895 16 H 0.054 0.946 17 O -0.569 6.569 18 C -0.146 4.146 19 C -0.141 4.141 20 C -0.118 4.118 21 C -0.024 4.024 22 N 0.032 4.968 23 O -0.174 6.174 24 O -0.129 6.129 25 C -0.040 4.040 26 C -0.083 4.083 27 O -0.504 6.504 28 Si 0.685 3.315 29 C -0.185 4.185 30 H 0.114 0.886 31 H 0.067 0.933 32 H 0.061 0.939 33 H 0.098 0.902 34 H 0.099 0.901 35 H 0.071 0.929 36 H 0.091 0.909 37 H 0.069 0.931 38 H 0.085 0.915 39 H 0.080 0.920 40 H 0.073 0.927 41 H 0.089 0.911 42 H 0.379 0.621 43 H 0.064 0.936 44 H 0.066 0.934 45 H 0.097 0.903 46 H 0.074 0.926 47 H 0.166 0.834 48 H 0.143 0.857 49 H 0.370 0.630 50 H -0.244 1.244 51 H -0.257 1.257 52 H 0.163 0.837 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -0.548 -3.986 1.351 4.244 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 -0.080 4.080 2 O -0.195 6.195 3 C 0.121 3.879 4 C 0.063 3.937 5 O -0.177 6.177 6 C -0.046 4.046 7 C 0.306 3.694 8 O -0.379 6.379 9 N -0.340 5.340 10 C -0.085 4.085 11 C 0.050 3.950 12 H 0.099 0.901 13 C -0.163 4.163 14 C -0.173 4.173 15 C 0.046 3.954 16 H 0.072 0.928 17 O -0.375 6.375 18 C -0.184 4.184 19 C -0.179 4.179 20 C -0.138 4.138 21 C -0.107 4.107 22 N 0.551 4.449 23 O -0.385 6.385 24 O -0.349 6.349 25 C -0.042 4.042 26 C -0.192 4.192 27 O -0.309 6.309 28 Si 0.585 3.415 29 C -0.204 4.204 30 H 0.132 0.868 31 H 0.085 0.915 32 H 0.080 0.920 33 H 0.116 0.884 34 H 0.116 0.884 35 H 0.089 0.911 36 H 0.110 0.890 37 H 0.088 0.912 38 H 0.104 0.896 39 H 0.099 0.901 40 H 0.092 0.908 41 H 0.108 0.892 42 H 0.227 0.773 43 H 0.083 0.917 44 H 0.085 0.915 45 H 0.115 0.885 46 H 0.092 0.908 47 H 0.183 0.817 48 H 0.160 0.840 49 H 0.217 0.783 50 H -0.168 1.168 51 H -0.182 1.182 52 H 0.180 0.820 Dipole moment (debyes) X Y Z Total from point charges -1.481 -4.664 1.013 4.998 hybrid contribution 0.296 0.170 -0.827 0.895 sum -1.184 -4.494 0.186 4.652 Atomic orbital electron populations 1.23390 0.76904 1.05671 1.02042 1.86340 1.22367 1.24299 1.86543 1.18445 0.89020 0.85872 0.94540 1.17862 0.88407 0.85369 1.02064 1.86326 1.16952 1.26054 1.88350 1.22738 0.79996 0.97520 1.04330 1.19734 0.82115 0.90045 0.77502 1.90735 1.62277 1.37579 1.47317 1.47765 1.04744 1.07570 1.73958 1.22307 0.97354 0.86459 1.02394 1.21118 0.92191 0.82272 0.99413 0.90114 1.21858 0.94069 1.02569 0.97829 1.21991 1.02183 1.00798 0.92288 1.21812 0.93829 0.95077 0.84672 0.92812 1.86500 1.82766 1.52338 1.15885 1.22176 0.96568 1.01527 0.98079 1.22003 1.04481 0.98380 0.93080 1.20796 1.02160 0.88990 1.01880 1.20390 0.91946 0.83147 1.15259 1.43369 1.00977 1.02588 0.97929 1.94542 0.95802 1.93710 1.54434 1.94576 1.64497 1.24080 1.51782 1.19997 0.91517 0.96873 0.95815 1.25415 1.09398 0.94102 0.90303 1.86814 1.84771 1.43906 1.15360 0.95247 0.74260 0.82164 0.89804 1.21107 1.01286 0.89713 1.08325 0.86773 0.91458 0.91993 0.88408 0.88367 0.91105 0.89010 0.91233 0.89648 0.90129 0.90816 0.89241 0.77347 0.91679 0.91537 0.88481 0.90756 0.81710 0.84007 0.78302 1.16840 1.18214 0.81983 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 0.01 -0.05 9.81 101.05 0.99 0.94 16 2 O -0.28 -0.19 10.28 -34.22 -0.35 -0.54 16 3 C 0.17 0.04 6.70 -39.12 -0.26 -0.22 16 4 C 0.11 0.08 6.70 -39.12 -0.26 -0.18 16 5 O -0.27 -0.52 9.45 -47.33 -0.45 -0.97 16 6 C 0.03 -0.03 3.85 36.00 0.14 0.10 16 7 C 0.52 0.56 7.29 -10.99 -0.08 0.48 16 8 O -0.50 -2.59 14.21 -14.36 -0.20 -2.79 16 9 N -0.60 0.80 2.28 -173.94 -0.40 0.41 16 10 C 0.06 -0.23 8.06 59.85 0.48 0.25 16 11 C 0.15 -0.18 3.05 -67.93 -0.21 -0.39 16 12 H 0.08 -0.05 8.14 -51.93 -0.42 -0.47 16 13 C -0.13 0.38 4.90 -26.73 -0.13 0.24 16 14 C -0.14 0.25 5.02 -26.73 -0.13 0.12 16 15 C 0.10 -0.09 3.47 -26.73 -0.09 -0.18 16 16 H 0.05 -0.07 8.14 -51.93 -0.42 -0.49 16 17 O -0.57 -0.24 13.32 -35.23 -0.47 -0.71 16 18 C -0.15 0.07 5.39 -26.73 -0.14 -0.08 16 19 C -0.14 0.02 5.14 -26.74 -0.14 -0.12 16 20 C -0.12 -0.01 8.54 -39.46 -0.34 -0.35 16 21 C -0.02 -0.04 6.84 -79.95 -0.55 -0.58 16 22 N 0.03 0.13 4.45 33.96 0.15 0.28 16 23 O -0.17 -0.83 18.44 -29.46 -0.54 -1.37 16 24 O -0.13 -0.67 14.62 -35.96 -0.53 -1.19 16 25 C -0.04 0.00 5.26 -104.62 -0.55 -0.55 16 26 C -0.08 0.01 1.74 36.01 0.06 0.07 16 27 O -0.50 -0.67 11.80 -55.45 -0.65 -1.32 16 28 Si 0.69 -1.53 30.24 -169.99 -5.14 -6.67 16 29 C -0.19 0.26 7.65 -39.46 -0.30 -0.04 16 30 H 0.11 -0.52 8.14 -51.93 -0.42 -0.94 16 31 H 0.07 -0.35 7.67 -51.93 -0.40 -0.75 16 32 H 0.06 -0.27 7.66 -51.93 -0.40 -0.67 16 33 H 0.10 -0.33 6.94 -51.93 -0.36 -0.69 16 34 H 0.10 -0.32 7.63 -51.93 -0.40 -0.71 16 35 H 0.07 -0.30 6.49 -51.93 -0.34 -0.63 16 36 H 0.09 -0.45 5.26 -51.93 -0.27 -0.72 16 37 H 0.07 -0.38 6.69 -51.92 -0.35 -0.73 16 38 H 0.08 -0.29 8.14 -51.92 -0.42 -0.71 16 39 H 0.08 -0.33 6.67 -51.93 -0.35 -0.67 16 40 H 0.07 -0.11 8.14 -51.94 -0.42 -0.53 16 41 H 0.09 -0.18 3.95 -51.93 -0.21 -0.39 16 42 H 0.38 -1.13 9.08 45.56 0.41 -0.72 16 43 H 0.06 -0.04 8.14 -51.93 -0.42 -0.46 16 44 H 0.07 0.05 7.46 -51.93 -0.39 -0.34 16 45 H 0.10 0.25 5.76 -51.93 -0.30 -0.05 16 46 H 0.07 -0.08 8.14 -51.93 -0.42 -0.51 16 47 H 0.17 -0.29 5.85 -52.49 -0.31 -0.60 16 48 H 0.14 0.08 6.07 -51.93 -0.32 -0.24 16 49 H 0.37 -0.80 8.70 45.56 0.40 -0.40 16 50 H -0.24 -0.28 7.11 56.52 0.40 0.12 16 51 H -0.26 0.45 6.68 56.52 0.38 0.83 16 52 H 0.16 -0.58 3.09 -52.49 -0.16 -0.74 16 LS Contribution 404.26 15.07 6.09 6.09 Total: 0.00 -11.53 404.26 -9.90 -21.43 By element: Atomic # 1 Polarization: -6.29 SS G_CDS: -5.90 Total: -12.19 kcal Atomic # 6 Polarization: 1.06 SS G_CDS: -1.51 Total: -0.46 kcal Atomic # 7 Polarization: 0.93 SS G_CDS: -0.25 Total: 0.69 kcal Atomic # 8 Polarization: -5.70 SS G_CDS: -3.20 Total: -8.90 kcal Atomic # 14 Polarization: -1.53 SS G_CDS: -5.14 Total: -6.67 kcal Total LS contribution 6.09 Total: 6.09 kcal Total: -11.53 -9.90 -21.43 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_15557736_4549636.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 -98.442 kcal (2) G-P(sol) polarization free energy of solvation -11.529 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -109.971 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.904 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -21.433 kcal (6) G-S(sol) free energy of system = (1) + (5) -119.874 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.26 seconds