Wall clock time and date at job start Sat Apr 11 2020 06:11:11 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 1.42901 * 1 3 3 C 1.42896 * 114.00004 * 2 1 4 4 H 1.09001 * 109.46969 * 29.99503 * 3 2 1 5 5 C 1.53007 * 109.46917 * 269.99630 * 3 2 1 6 6 C 1.52993 * 109.47519 * 149.99757 * 3 2 1 7 7 C 1.53007 * 109.46792 * 295.00013 * 6 3 2 8 8 C 1.50699 * 109.46890 * 179.97438 * 7 6 3 9 9 O 1.21283 * 120.00332 * 359.97438 * 8 7 6 10 10 N 1.34774 * 120.00386 * 179.97438 * 8 7 6 11 11 C 1.47161 * 120.98330 * 0.02562 * 10 8 7 12 12 C 1.53300 * 108.37118 * 129.38539 * 11 10 8 13 13 O 1.42968 * 109.22612 * 52.35397 * 12 11 10 14 14 C 1.42893 * 114.20887 * 297.50525 * 13 12 11 15 15 C 1.52990 * 109.55769 * 302.52586 * 14 13 12 16 16 C 1.53195 * 109.34738 * 300.95636 * 15 14 13 17 17 N 1.46932 * 108.77517 * 305.43150 * 16 15 14 18 18 C 1.36939 * 120.63776 * 233.64856 * 17 16 15 19 19 H 1.07994 * 120.00388 * 29.31573 * 18 17 16 20 20 C 1.38812 * 119.99894 * 209.31432 * 18 17 16 21 21 N 1.31629 * 119.99846 * 24.33934 * 20 18 17 22 22 Si 1.86794 * 120.00220 * 204.34404 * 20 18 17 23 23 H 1.48499 * 109.47166 * 180.02562 * 22 20 18 24 24 H 1.48505 * 109.47008 * 299.99540 * 22 20 18 25 25 H 1.48500 * 109.47268 * 59.99635 * 22 20 18 26 26 C 1.46925 * 118.71825 * 53.92877 * 17 16 15 27 27 C 1.52999 * 109.54877 * 182.22567 * 14 13 12 28 28 C 1.47149 * 120.99342 * 179.97438 * 10 8 7 29 29 H 1.08997 * 109.47586 * 300.00467 * 1 2 3 30 30 H 1.08998 * 109.46836 * 60.00735 * 1 2 3 31 31 H 1.09007 * 109.47148 * 180.02562 * 1 2 3 32 32 H 1.09001 * 109.47108 * 179.97438 * 5 3 2 33 33 H 1.08998 * 109.46808 * 300.00082 * 5 3 2 34 34 H 1.09001 * 109.47080 * 60.00157 * 5 3 2 35 35 H 1.08995 * 109.47759 * 174.99723 * 6 3 2 36 36 H 1.08999 * 109.47323 * 54.99499 * 6 3 2 37 37 H 1.08999 * 109.47147 * 59.99891 * 7 6 3 38 38 H 1.08994 * 109.47253 * 299.99329 * 7 6 3 39 39 H 1.08994 * 109.68916 * 249.10678 * 11 10 8 40 40 H 1.09007 * 109.67928 * 9.67074 * 11 10 8 41 41 H 1.08998 * 109.51173 * 172.27788 * 12 11 10 42 42 H 1.09005 * 109.51524 * 292.38219 * 12 11 10 43 43 H 1.09006 * 109.48402 * 180.99735 * 15 14 13 44 44 H 1.08991 * 109.51177 * 60.93914 * 15 14 13 45 45 H 1.09000 * 109.58085 * 185.64434 * 16 15 14 46 46 H 1.08999 * 109.70030 * 65.29021 * 16 15 14 47 47 H 0.96998 * 119.99676 * 5.78285 * 21 20 18 48 48 H 1.09008 * 109.58706 * 65.84446 * 26 17 16 49 49 H 1.08998 * 109.59128 * 186.27686 * 26 17 16 50 50 H 1.08997 * 109.49447 * 178.99766 * 27 14 13 51 51 H 1.09001 * 109.49212 * 299.05162 * 27 14 13 52 52 H 1.09005 * 109.67843 * 110.76276 * 28 10 8 53 53 H 1.08996 * 109.70440 * 350.24439 * 28 10 8 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 1.3054 0.0000 4 1 1.3449 1.9993 0.5138 5 6 2.2177 1.7713 -1.4426 6 6 3.3588 1.2633 0.7213 7 6 3.1381 0.9185 2.1955 8 6 4.4665 0.8764 2.9059 9 8 5.4892 1.0997 2.2932 10 7 4.5183 0.5907 4.2219 11 6 3.2912 0.3157 4.9863 12 6 3.4867 -0.9935 5.7595 13 8 4.6996 -0.9187 6.5127 14 6 5.8766 -0.7743 5.7154 15 6 5.9743 -1.9409 4.7305 16 6 6.0190 -3.2597 5.5088 17 7 7.1177 -3.1972 6.4825 18 6 8.0769 -4.1739 6.5159 19 1 8.3369 -4.7066 5.6132 20 6 8.7151 -4.4793 7.7102 21 7 8.1232 -4.2215 8.8573 22 14 10.4137 -5.2561 7.6896 23 1 10.8717 -5.4820 9.0840 24 1 10.3554 -6.5548 6.9717 25 1 11.3641 -4.3496 6.9965 26 6 7.1637 -2.0698 7.4235 27 6 7.1099 -0.7611 6.6207 28 6 5.8035 0.5432 4.9370 29 1 -0.3634 0.5139 0.8899 30 1 -0.3633 0.5137 -0.8900 31 1 -0.3634 -1.0277 0.0005 32 1 2.6607 2.7672 -1.4426 33 1 2.8830 1.0773 -1.9563 34 1 1.2569 1.8013 -1.9564 35 1 3.8426 2.2370 0.6443 36 1 3.9931 0.5052 0.2619 37 1 2.6543 -0.0552 2.2725 38 1 2.5040 1.6766 2.6550 39 1 3.1037 1.1306 5.6855 40 1 2.4477 0.2161 4.3030 41 1 2.6464 -1.1452 6.4369 42 1 3.5438 -1.8257 5.0579 43 1 6.8816 -1.8390 4.1351 44 1 5.1052 -1.9359 4.0729 45 1 6.1892 -4.0858 4.8183 46 1 5.0748 -3.4096 6.0323 47 1 7.2093 -3.8966 8.8693 48 1 6.3099 -2.1227 8.0991 49 1 8.0895 -2.1103 7.9974 50 1 8.0082 -0.6688 6.0104 51 1 7.0482 0.0834 7.3072 52 1 5.8693 1.3824 5.6296 53 1 6.6242 0.5927 4.2215 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 ZINC001485006903.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 06:11:11 Heat of formation + Delta-G solvation = -107.269366 kcal Electronic energy + Delta-G solvation = -31818.415074 eV Core-core repulsion = 27690.801266 eV Total energy + Delta-G solvation = -4127.613807 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 1.36 seconds Orbital eigenvalues (eV) -40.73614 -39.18245 -38.46696 -36.38429 -34.63444 -34.09630 -33.14025 -31.27701 -30.62551 -29.75922 -28.76041 -27.24859 -26.84435 -24.81219 -23.83711 -23.31017 -22.32964 -21.48711 -20.79335 -19.10034 -18.89482 -17.53350 -17.32923 -17.20325 -16.20737 -15.93342 -15.55599 -15.39218 -15.32530 -14.90425 -14.79540 -14.17754 -14.02969 -13.80803 -13.67669 -13.55561 -13.42873 -13.34143 -13.02487 -12.80182 -12.62109 -12.40745 -12.00324 -11.95817 -11.80357 -11.71962 -11.60322 -11.50024 -11.38349 -10.95235 -10.92048 -10.66663 -10.50448 -10.41124 -10.28236 -10.11137 -10.01204 -9.94546 -9.70816 -9.46769 -9.21855 -8.45708 -8.30948 -6.79740 -6.00060 -3.17914 2.54972 2.81301 3.41012 3.53339 3.56592 3.74661 3.92042 4.21834 4.43817 4.62774 4.64611 4.71977 4.80630 4.84918 4.89429 4.95503 4.95573 5.04580 5.08039 5.14322 5.21986 5.25583 5.27091 5.31678 5.34348 5.39371 5.52291 5.55025 5.62808 5.64289 5.71600 5.76575 5.79150 5.85517 5.96426 5.98875 6.20012 6.25415 6.27869 6.40851 6.47119 6.53693 6.70461 6.84639 6.90171 7.09908 7.27690 7.31205 7.49145 8.07624 8.08285 8.64725 9.19234 9.91373 10.37934 11.27798 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.019783 B = 0.002485 C = 0.002441 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1415.046438 B =11263.674031 C =11467.780577 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.030 3.970 2 O -0.383 6.383 3 C 0.084 3.916 4 H 0.060 0.940 5 C -0.175 4.175 6 C -0.101 4.101 7 C -0.137 4.137 8 C 0.515 3.485 9 O -0.541 6.541 10 N -0.612 5.612 11 C 0.073 3.927 12 C 0.043 3.957 13 O -0.358 6.358 14 C 0.118 3.882 15 C -0.151 4.151 16 C 0.155 3.845 17 N -0.598 5.598 18 C -0.348 4.348 19 H 0.054 0.946 20 C -0.024 4.024 21 N -0.916 5.916 22 Si 1.064 2.936 23 H -0.286 1.286 24 H -0.293 1.293 25 H -0.293 1.293 26 C 0.159 3.841 27 C -0.121 4.121 28 C 0.089 3.911 29 H 0.041 0.959 30 H 0.039 0.961 31 H 0.085 0.915 32 H 0.066 0.934 33 H 0.066 0.934 34 H 0.056 0.944 35 H 0.083 0.917 36 H 0.081 0.919 37 H 0.099 0.901 38 H 0.088 0.912 39 H 0.076 0.924 40 H 0.090 0.910 41 H 0.101 0.899 42 H 0.060 0.940 43 H 0.068 0.932 44 H 0.052 0.948 45 H 0.051 0.949 46 H 0.019 0.981 47 H 0.270 0.730 48 H 0.027 0.973 49 H 0.077 0.923 50 H 0.073 0.927 51 H 0.059 0.941 52 H 0.070 0.930 53 H 0.098 0.902 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -17.299 14.170 -14.239 26.510 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 -0.067 4.067 2 O -0.302 6.302 3 C 0.026 3.974 4 H 0.078 0.922 5 C -0.232 4.232 6 C -0.139 4.139 7 C -0.177 4.177 8 C 0.304 3.696 9 O -0.418 6.418 10 N -0.346 5.346 11 C -0.050 4.050 12 C -0.035 4.035 13 O -0.277 6.277 14 C 0.078 3.922 15 C -0.191 4.191 16 C 0.028 3.972 17 N -0.321 5.321 18 C -0.478 4.478 19 H 0.071 0.929 20 C -0.226 4.226 21 N -0.556 5.556 22 Si 0.894 3.106 23 H -0.211 1.211 24 H -0.221 1.221 25 H -0.221 1.221 26 C 0.033 3.967 27 C -0.161 4.161 28 C -0.033 4.033 29 H 0.059 0.941 30 H 0.058 0.942 31 H 0.104 0.896 32 H 0.085 0.915 33 H 0.085 0.915 34 H 0.075 0.925 35 H 0.102 0.898 36 H 0.099 0.901 37 H 0.118 0.882 38 H 0.107 0.893 39 H 0.094 0.906 40 H 0.109 0.891 41 H 0.119 0.881 42 H 0.078 0.922 43 H 0.087 0.913 44 H 0.070 0.930 45 H 0.070 0.930 46 H 0.036 0.964 47 H 0.081 0.919 48 H 0.045 0.955 49 H 0.096 0.904 50 H 0.092 0.908 51 H 0.078 0.922 52 H 0.089 0.911 53 H 0.116 0.884 Dipole moment (debyes) X Y Z Total from point charges -15.347 13.576 -13.408 24.487 hybrid contribution -1.763 0.774 -1.329 2.340 sum -17.110 14.351 -14.737 26.756 Atomic orbital electron populations 1.22784 0.81298 1.02792 0.99780 1.87967 1.19417 1.27787 1.95061 1.22201 0.94817 0.84633 0.95726 0.92170 1.22268 1.02308 1.01912 0.96728 1.21473 0.95657 1.03842 0.92925 1.21658 0.95292 1.04383 0.96347 1.20703 0.91593 0.76093 0.81245 1.90696 1.36408 1.49398 1.65298 1.48160 1.07933 1.69854 1.08682 1.22484 0.87114 0.99281 0.96108 1.22906 0.88887 0.95482 0.96247 1.88056 1.13240 1.93718 1.32646 1.21733 0.86591 0.92406 0.91468 1.22498 1.01222 0.97554 0.97801 1.20761 0.91236 0.93375 0.91797 1.44101 1.26314 1.23221 1.38506 1.19959 1.16131 1.16322 0.95357 0.92870 1.25853 1.05432 0.99557 0.91807 1.70771 1.14585 1.44066 1.26204 0.83538 0.75821 0.75737 0.75494 1.21122 1.22061 1.22070 1.20926 1.00559 0.83983 0.91222 1.22150 0.94185 1.01093 0.98672 1.22424 0.86182 0.98466 0.96271 0.94082 0.94225 0.89627 0.91453 0.91506 0.92542 0.89837 0.90054 0.88244 0.89350 0.90612 0.89146 0.88100 0.92223 0.91341 0.92953 0.93011 0.96359 0.91945 0.95541 0.90424 0.90794 0.92195 0.91147 0.88359 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 17. 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 10.82 101.05 1.09 1.28 16 2 O -0.38 -3.48 9.88 -35.23 -0.35 -3.83 16 3 C 0.08 0.64 2.72 -26.73 -0.07 0.57 16 4 H 0.06 0.37 7.79 -51.93 -0.40 -0.03 16 5 C -0.17 -1.20 9.53 37.16 0.35 -0.85 16 6 C -0.10 -0.95 4.21 -26.73 -0.11 -1.06 16 7 C -0.14 -1.27 3.97 -27.88 -0.11 -1.38 16 8 C 0.51 6.85 7.71 -10.99 -0.08 6.76 16 9 O -0.54 -9.19 15.45 5.55 0.09 -9.10 16 10 N -0.61 -7.93 2.52 -172.33 -0.44 -8.36 16 11 C 0.07 0.74 6.54 -3.53 -0.02 0.71 16 12 C 0.04 0.53 6.60 37.31 0.25 0.78 16 13 O -0.36 -6.02 9.00 -35.23 -0.32 -6.34 16 14 C 0.12 2.03 0.68 -90.52 -0.06 1.97 16 15 C -0.15 -2.81 4.33 -26.64 -0.12 -2.92 16 16 C 0.15 3.40 6.28 -3.71 -0.02 3.38 16 17 N -0.60 -15.32 2.83 -172.05 -0.49 -15.80 16 18 C -0.35 -9.92 9.48 -15.06 -0.14 -10.07 16 19 H 0.05 1.53 7.94 -52.49 -0.42 1.11 16 20 C -0.02 -0.70 4.69 -17.43 -0.08 -0.78 16 21 N -0.92 -27.79 12.45 55.49 0.69 -27.10 16 22 Si 1.06 25.65 29.98 -169.99 -5.10 20.55 16 23 H -0.29 -6.96 7.11 56.52 0.40 -6.56 16 24 H -0.29 -6.80 7.11 56.52 0.40 -6.40 16 25 H -0.29 -6.84 7.11 56.52 0.40 -6.43 16 26 C 0.16 3.80 4.49 -3.48 -0.02 3.79 16 27 C -0.12 -2.33 5.12 -26.41 -0.14 -2.47 16 28 C 0.09 1.34 5.29 -3.58 -0.02 1.32 16 29 H 0.04 0.20 8.08 -51.93 -0.42 -0.22 16 30 H 0.04 0.20 7.87 -51.93 -0.41 -0.21 16 31 H 0.09 0.45 8.14 -51.92 -0.42 0.03 16 32 H 0.07 0.40 8.14 -51.93 -0.42 -0.03 16 33 H 0.07 0.52 8.14 -51.93 -0.42 0.10 16 34 H 0.06 0.34 7.87 -51.93 -0.41 -0.07 16 35 H 0.08 0.78 8.10 -51.93 -0.42 0.36 16 36 H 0.08 0.93 8.10 -51.93 -0.42 0.51 16 37 H 0.10 0.89 7.34 -51.93 -0.38 0.51 16 38 H 0.09 0.61 8.01 -51.93 -0.42 0.20 16 39 H 0.08 0.69 8.14 -51.93 -0.42 0.27 16 40 H 0.09 0.65 6.05 -51.93 -0.31 0.34 16 41 H 0.10 1.02 8.14 -51.93 -0.42 0.60 16 42 H 0.06 0.79 6.29 -51.93 -0.33 0.46 16 43 H 0.07 1.36 8.14 -51.93 -0.42 0.94 16 44 H 0.05 0.89 6.16 -51.93 -0.32 0.57 16 45 H 0.05 1.15 7.93 -51.93 -0.41 0.74 16 46 H 0.02 0.41 7.83 -51.93 -0.41 0.00 16 47 H 0.27 8.28 6.72 -40.82 -0.27 8.01 16 48 H 0.03 0.66 7.54 -51.92 -0.39 0.27 16 49 H 0.08 2.06 6.38 -51.93 -0.33 1.73 16 50 H 0.07 1.44 8.14 -51.93 -0.42 1.01 16 51 H 0.06 1.04 8.14 -51.93 -0.42 0.61 16 52 H 0.07 1.00 8.14 -51.93 -0.42 0.57 16 53 H 0.10 1.62 7.08 -51.93 -0.37 1.25 16 LS Contribution 402.24 15.07 6.06 6.06 Total: -1.00 -34.07 402.24 -8.59 -42.66 By element: Atomic # 1 Polarization: 9.69 SS G_CDS: -9.44 Total: 0.25 kcal Atomic # 6 Polarization: 0.32 SS G_CDS: 0.70 Total: 1.01 kcal Atomic # 7 Polarization: -51.04 SS G_CDS: -0.23 Total: -51.27 kcal Atomic # 8 Polarization: -18.69 SS G_CDS: -0.58 Total: -19.27 kcal Atomic # 14 Polarization: 25.65 SS G_CDS: -5.10 Total: 20.55 kcal Total LS contribution 6.06 Total: 6.06 kcal Total: -34.07 -8.59 -42.66 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. ZINC001485006903.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 -64.608 kcal (2) G-P(sol) polarization free energy of solvation -34.071 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -98.679 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.591 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -42.661 kcal (6) G-S(sol) free energy of system = (1) + (5) -107.269 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.36 seconds