Wall clock time and date at job start Tue Mar 31 2020 21:05:29 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 N 2 2 C 1.31622 * 1 3 3 Si 1.86800 * 120.00392 * 2 1 4 4 H 1.48498 * 109.47264 * 233.97509 * 3 2 1 5 5 H 1.48498 * 109.47060 * 353.97506 * 3 2 1 6 6 H 1.48499 * 109.46982 * 113.97596 * 3 2 1 7 7 C 1.38817 * 119.99691 * 180.02562 * 2 1 3 8 8 H 1.08004 * 119.99894 * 14.51387 * 7 2 1 9 9 N 1.36930 * 119.99914 * 194.51729 * 7 2 1 10 10 C 1.47024 * 125.65100 * 5.67706 * 9 7 2 11 11 C 1.54330 * 107.27044 * 178.85069 * 10 9 7 12 12 C 1.55164 * 103.02042 * 338.13875 * 11 10 9 13 13 H 1.08993 * 111.03726 * 277.22058 * 12 11 10 14 14 C 1.52994 * 111.00735 * 153.37776 * 12 11 10 15 15 C 1.53036 * 109.46265 * 186.41724 * 14 12 11 16 16 C 1.53190 * 109.31232 * 178.61668 * 15 14 12 17 17 N 1.46923 * 108.77582 * 54.63854 * 16 15 14 18 18 C 1.34778 * 120.62946 * 126.41297 * 17 16 15 19 19 O 1.21284 * 119.99743 * 182.65303 * 18 17 16 20 20 C 1.50700 * 120.00204 * 2.65393 * 18 17 16 21 21 C 1.53006 * 112.84402 * 280.16474 * 20 18 17 22 22 F 1.39894 * 109.47327 * 301.17067 * 21 20 18 23 23 C 1.53773 * 113.61715 * 148.85756 * 20 18 17 24 24 C 1.53777 * 87.08351 * 220.01643 * 23 20 18 25 25 C 1.53781 * 87.08026 * 25.43269 * 24 23 20 26 26 C 1.46922 * 118.73700 * 306.38957 * 17 16 15 27 27 C 1.53050 * 109.45697 * 66.35264 * 14 12 11 28 28 C 1.47424 * 125.65103 * 185.98280 * 9 7 2 29 29 H 0.96999 * 120.00309 * 185.16421 * 1 2 3 30 30 H 1.09007 * 109.88056 * 298.39504 * 10 9 7 31 31 H 1.08998 * 109.88161 * 59.55363 * 10 9 7 32 32 H 1.08998 * 110.85226 * 219.67525 * 11 10 9 33 33 H 1.08996 * 110.51650 * 96.44847 * 11 10 9 34 34 H 1.09000 * 109.46314 * 306.38320 * 14 12 11 35 35 H 1.09001 * 109.49917 * 298.57016 * 15 14 12 36 36 H 1.09004 * 109.49339 * 58.66984 * 15 14 12 37 37 H 1.09000 * 109.58647 * 294.84813 * 16 15 14 38 38 H 1.09001 * 109.58743 * 174.42520 * 16 15 14 39 39 H 1.08994 * 109.47121 * 61.17807 * 21 20 18 40 40 H 1.09010 * 109.46711 * 181.17663 * 21 20 18 41 41 H 1.09003 * 113.61813 * 334.56928 * 23 20 18 42 42 H 1.09010 * 113.61493 * 105.46909 * 23 20 18 43 43 H 1.09004 * 113.61806 * 270.88554 * 24 23 20 44 44 H 1.09002 * 113.61623 * 139.97977 * 24 23 20 45 45 H 1.09000 * 113.61733 * 220.02122 * 25 24 23 46 46 H 1.09000 * 113.69358 * 89.12456 * 25 24 23 47 47 H 1.08996 * 109.59080 * 293.81955 * 26 17 16 48 48 H 1.09007 * 109.70056 * 173.46350 * 26 17 16 49 49 H 1.09002 * 109.49384 * 301.33628 * 27 14 12 50 50 H 1.08997 * 109.49602 * 61.40118 * 27 14 12 51 51 H 1.09002 * 110.36512 * 322.93689 * 28 9 7 52 52 H 1.09000 * 110.36936 * 85.14268 * 28 9 7 Note: An asterisk (*) indicates this parameter was or will be optimized. Cartesian coordinates (angstroms) NO. Atom X Y Z 1 7 0.0000 0.0000 0.0000 2 6 1.3162 0.0000 0.0000 3 14 2.2503 1.6177 0.0000 4 1 3.2109 1.6346 -1.1323 5 1 1.2921 2.7426 -0.1470 6 1 2.9905 1.7618 1.2793 7 6 2.0102 -1.2022 -0.0005 8 1 1.4960 -2.1225 -0.2354 9 7 3.3467 -1.2213 0.2967 10 6 4.1411 -0.0689 0.7467 11 6 5.5811 -0.5701 0.9852 12 6 5.3905 -2.0961 1.1916 13 1 5.1036 -2.3191 2.2191 14 6 6.6537 -2.8647 0.7988 15 6 6.3762 -4.3683 0.8626 16 6 7.6325 -5.1339 0.4354 17 7 8.7606 -4.6928 1.2668 18 6 9.5082 -5.5887 1.9413 19 8 10.4066 -5.2087 2.6621 20 6 9.2280 -7.0627 1.7997 21 6 8.0470 -7.5275 2.6542 22 9 8.3066 -7.2480 4.0002 23 6 10.4796 -7.9443 1.9435 24 6 9.9152 -8.7965 0.7946 25 6 9.1567 -7.5387 0.3392 26 6 9.0587 -3.2564 1.3486 27 6 7.7865 -2.5118 1.7656 28 6 4.2290 -2.3995 0.2125 29 1 -0.4850 -0.8366 0.0756 30 1 4.1383 0.7055 -0.0205 31 1 3.7291 0.3253 1.6756 32 1 6.0091 -0.1110 1.8763 33 1 6.2035 -0.3738 0.1121 34 1 6.9441 -2.5919 -0.2158 35 1 6.1099 -4.6462 1.8824 36 1 5.5538 -4.6152 0.1911 37 1 7.8480 -4.9267 -0.6128 38 1 7.4732 -6.2034 0.5733 39 1 7.1439 -7.0032 2.3419 40 1 7.9065 -8.6009 2.5266 41 1 11.4072 -7.4304 1.6912 42 1 10.5335 -8.4743 2.8946 43 1 9.2625 -9.6029 1.1289 44 1 10.6728 -9.1302 0.0855 45 1 8.1424 -7.7411 -0.0050 46 1 9.7213 -6.9129 -0.3520 47 1 9.3905 -2.8960 0.3750 48 1 9.8412 -3.0850 2.0879 49 1 7.9678 -1.4374 1.7368 50 1 7.5067 -2.8067 2.7769 51 1 3.6944 -3.2967 0.5245 52 1 4.6076 -2.5182 -0.8027 RHF calculation, no. of doubly occupied orbitals= 65 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) F: (AM1): M.J.S. DEWAR AND E. G. ZOEBISCH, THEOCHEM, 180, 1 (1988). 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 ZINC001039162949.mol2 52 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Tue Mar 31 2020 21:05:29 Heat of formation + Delta-G solvation = -37.993667 kcal Electronic energy + Delta-G solvation = -31113.724907 eV Core-core repulsion = 27028.799387 eV Total energy + Delta-G solvation = -4084.925520 eV No. of doubly occupied orbitals = 65 Molecular weight (most abundant/longest-lived isotopes) = 338.211 amu Computer time = 1.40 seconds Orbital eigenvalues (eV) -47.96645 -41.18698 -39.19260 -38.02265 -36.87647 -33.91363 -32.10946 -31.55668 -29.75904 -29.10752 -28.40198 -26.31983 -25.89549 -24.58245 -23.70588 -22.92309 -21.55086 -20.57263 -19.89825 -19.72276 -18.99913 -17.60733 -17.42752 -16.73757 -16.39824 -16.07485 -15.71807 -15.39453 -15.19712 -14.87829 -14.75415 -14.38516 -14.26205 -13.84301 -13.64534 -13.33622 -13.14062 -12.96227 -12.81759 -12.67085 -12.41580 -12.37108 -12.21886 -12.15625 -11.84029 -11.52481 -11.47019 -11.32288 -11.20625 -11.07310 -10.88915 -10.85699 -10.82006 -10.47750 -10.34925 -10.03117 -9.82104 -9.75019 -9.30602 -8.95256 -8.82353 -8.75266 -6.99374 -6.29103 -3.18448 2.32942 2.69594 3.42392 3.48971 3.69590 3.71596 3.77841 4.05219 4.15854 4.28023 4.43247 4.58576 4.61918 4.64099 4.67086 4.69064 4.81622 4.89493 5.02388 5.08389 5.09479 5.16105 5.24066 5.26304 5.29486 5.37268 5.40462 5.44108 5.47616 5.50286 5.57006 5.58029 5.60554 5.70247 5.76787 5.82161 5.86782 5.94959 5.99212 6.03375 6.20729 6.23915 6.33517 6.34747 6.45672 6.57983 6.81229 6.81937 7.14531 7.67892 7.92727 8.34724 9.06536 9.59242 10.25800 11.21828 Molecular weight = 338.21amu Principal moments of inertia in cm(-1) A = 0.023259 B = 0.002539 C = 0.002439 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1203.559112 B =11024.369657 C =11476.608941 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 N -0.931 5.931 2 C -0.025 4.025 3 Si 1.074 2.926 4 H -0.299 1.299 5 H -0.303 1.303 6 H -0.285 1.285 7 C -0.320 4.320 8 H 0.078 0.922 9 N -0.615 5.615 10 C 0.098 3.902 11 C -0.122 4.122 12 C -0.097 4.097 13 H 0.076 0.924 14 C -0.073 4.073 15 C -0.133 4.133 16 C 0.099 3.901 17 N -0.606 5.606 18 C 0.532 3.468 19 O -0.535 6.535 20 C -0.145 4.145 21 C 0.090 3.910 22 F -0.205 7.205 23 C -0.107 4.107 24 C -0.144 4.144 25 C -0.122 4.122 26 C 0.111 3.889 27 C -0.128 4.128 28 C 0.144 3.856 29 H 0.261 0.739 30 H 0.033 0.967 31 H 0.047 0.953 32 H 0.066 0.934 33 H 0.064 0.936 34 H 0.073 0.927 35 H 0.067 0.933 36 H 0.083 0.917 37 H 0.072 0.928 38 H 0.088 0.912 39 H 0.083 0.917 40 H 0.088 0.912 41 H 0.091 0.909 42 H 0.077 0.923 43 H 0.086 0.914 44 H 0.076 0.924 45 H 0.083 0.917 46 H 0.093 0.907 47 H 0.067 0.933 48 H 0.090 0.910 49 H 0.078 0.922 50 H 0.066 0.934 51 H 0.041 0.959 52 H 0.021 0.979 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 21.865 -17.047 0.802 27.737 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 N -0.573 5.573 2 C -0.224 4.224 3 Si 0.908 3.092 4 H -0.228 1.228 5 H -0.232 1.232 6 H -0.213 1.213 7 C -0.447 4.447 8 H 0.096 0.904 9 N -0.343 5.343 10 C -0.026 4.026 11 C -0.160 4.160 12 C -0.117 4.117 13 H 0.094 0.906 14 C -0.092 4.092 15 C -0.171 4.171 16 C -0.024 4.024 17 N -0.339 5.339 18 C 0.320 3.680 19 O -0.411 6.411 20 C -0.148 4.148 21 C 0.035 3.965 22 F -0.186 7.186 23 C -0.145 4.145 24 C -0.181 4.181 25 C -0.160 4.160 26 C -0.011 4.011 27 C -0.166 4.166 28 C 0.018 3.982 29 H 0.070 0.930 30 H 0.050 0.950 31 H 0.065 0.935 32 H 0.084 0.916 33 H 0.083 0.917 34 H 0.092 0.908 35 H 0.085 0.915 36 H 0.101 0.899 37 H 0.090 0.910 38 H 0.106 0.894 39 H 0.101 0.899 40 H 0.106 0.894 41 H 0.110 0.890 42 H 0.096 0.904 43 H 0.104 0.896 44 H 0.095 0.905 45 H 0.102 0.898 46 H 0.112 0.888 47 H 0.085 0.915 48 H 0.108 0.892 49 H 0.097 0.903 50 H 0.085 0.915 51 H 0.059 0.941 52 H 0.038 0.962 Dipole moment (debyes) X Y Z Total from point charges 22.044 -15.192 1.133 26.796 hybrid contribution 0.049 -1.543 0.000 1.543 sum 22.093 -16.735 1.133 27.739 Atomic orbital electron populations 1.70892 1.05706 1.29147 1.51553 1.25796 0.96475 1.00938 0.99213 0.83825 0.72963 0.76195 0.76209 1.22800 1.23151 1.21300 1.20178 0.81870 0.96219 1.46433 0.90418 1.44828 1.05988 1.04271 1.79178 1.22099 0.90695 0.91918 0.97916 1.22594 0.97087 0.95444 1.00851 1.22393 0.94358 0.94676 1.00238 0.90589 1.21078 0.94578 0.94109 0.99398 1.22033 0.96901 0.95528 1.02658 1.22079 0.85909 0.99655 0.94740 1.48100 1.31098 1.06962 1.47775 1.20131 0.81678 0.87183 0.79044 1.90686 1.31923 1.80438 1.38027 1.22787 0.99620 0.93233 0.99187 1.21746 0.96120 1.02105 0.76547 1.92823 1.95478 1.95483 1.34861 1.22775 0.95948 0.96052 0.99693 1.22922 1.00212 0.96548 0.98438 1.23074 1.01985 0.97690 0.93217 1.21640 0.98284 0.79017 1.02133 1.21975 0.94285 1.00489 0.99896 1.21553 0.90055 0.91205 0.95349 0.92962 0.95004 0.93492 0.91561 0.91706 0.90836 0.91452 0.89885 0.90991 0.89406 0.89893 0.89383 0.88996 0.90387 0.89578 0.90495 0.89831 0.88828 0.91499 0.89166 0.90341 0.91487 0.94097 0.96179 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 N -0.93 -29.60 13.70 55.49 0.76 -28.84 16 2 C -0.03 -0.76 5.50 -17.43 -0.10 -0.86 16 3 Si 1.07 27.24 24.50 -169.99 -4.17 23.07 16 4 H -0.30 -7.29 6.58 56.52 0.37 -6.92 16 5 H -0.30 -7.86 7.11 56.52 0.40 -7.45 16 6 H -0.29 -6.65 5.39 56.52 0.30 -6.34 16 7 C -0.32 -9.23 10.58 -15.06 -0.16 -9.39 16 8 H 0.08 2.35 8.06 -52.48 -0.42 1.93 16 9 N -0.62 -15.06 3.36 -170.06 -0.57 -15.63 16 10 C 0.10 2.14 4.63 -3.06 -0.01 2.13 16 11 C -0.12 -1.96 5.57 -24.89 -0.14 -2.10 16 12 C -0.10 -1.46 2.57 -88.47 -0.23 -1.69 16 13 H 0.08 1.20 8.14 -51.93 -0.42 0.78 16 14 C -0.07 -0.82 1.66 -90.58 -0.15 -0.97 16 15 C -0.13 -1.29 5.18 -26.61 -0.14 -1.42 16 16 C 0.10 0.77 5.29 -3.71 -0.02 0.75 16 17 N -0.61 -6.04 2.97 -172.77 -0.51 -6.55 16 18 C 0.53 6.13 6.43 -10.99 -0.07 6.05 16 19 O -0.53 -8.26 15.96 5.55 0.09 -8.17 16 20 C -0.14 -1.17 0.48 -154.85 -0.07 -1.25 16 21 C 0.09 0.69 6.53 37.16 0.24 0.93 16 22 F -0.21 -2.42 17.15 2.25 0.04 -2.38 16 23 C -0.11 -0.81 6.90 -25.93 -0.18 -0.99 16 24 C -0.14 -0.69 7.73 -25.92 -0.20 -0.89 16 25 C -0.12 -0.65 5.20 -25.92 -0.13 -0.78 16 26 C 0.11 1.13 6.43 -3.72 -0.02 1.11 16 27 C -0.13 -1.35 5.23 -26.61 -0.14 -1.49 16 28 C 0.14 2.75 5.65 -2.53 -0.01 2.73 16 29 H 0.26 8.17 8.73 -40.82 -0.36 7.81 16 30 H 0.03 0.74 4.07 -51.92 -0.21 0.53 16 31 H 0.05 1.09 6.18 -51.93 -0.32 0.77 16 32 H 0.07 0.94 8.11 -51.93 -0.42 0.52 16 33 H 0.06 0.96 8.01 -51.93 -0.42 0.54 16 34 H 0.07 0.82 8.11 -51.93 -0.42 0.40 16 35 H 0.07 0.70 8.14 -51.93 -0.42 0.28 16 36 H 0.08 0.81 7.21 -51.93 -0.37 0.43 16 37 H 0.07 0.50 8.14 -51.93 -0.42 0.08 16 38 H 0.09 0.52 3.15 -51.93 -0.16 0.36 16 39 H 0.08 0.56 6.83 -51.93 -0.35 0.20 16 40 H 0.09 0.44 7.30 -51.92 -0.38 0.06 16 41 H 0.09 0.79 8.00 -51.93 -0.42 0.38 16 42 H 0.08 0.61 8.10 -51.92 -0.42 0.19 16 43 H 0.09 0.32 7.60 -51.93 -0.39 -0.08 16 44 H 0.08 0.33 8.14 -51.93 -0.42 -0.10 16 45 H 0.08 0.31 6.96 -51.93 -0.36 -0.05 16 46 H 0.09 0.53 8.09 -51.93 -0.42 0.11 16 47 H 0.07 0.60 8.14 -51.93 -0.42 0.18 16 48 H 0.09 1.04 7.01 -51.92 -0.36 0.68 16 49 H 0.08 0.79 7.45 -51.93 -0.39 0.40 16 50 H 0.07 0.78 8.14 -51.93 -0.42 0.36 16 51 H 0.04 0.78 8.01 -51.93 -0.42 0.36 16 52 H 0.02 0.38 8.04 -51.93 -0.42 -0.04 16 LS Contribution 382.15 15.07 5.76 5.76 Total: -1.00 -35.48 382.15 -9.04 -44.52 By element: Atomic # 1 Polarization: 5.24 SS G_CDS: -8.90 Total: -3.66 kcal Atomic # 6 Polarization: -6.58 SS G_CDS: -1.54 Total: -8.12 kcal Atomic # 7 Polarization: -50.70 SS G_CDS: -0.32 Total: -51.02 kcal Atomic # 8 Polarization: -8.26 SS G_CDS: 0.09 Total: -8.17 kcal Atomic # 9 Polarization: -2.42 SS G_CDS: 0.04 Total: -2.38 kcal Atomic # 14 Polarization: 27.24 SS G_CDS: -4.17 Total: 23.07 kcal Total LS contribution 5.76 Total: 5.76 kcal Total: -35.48 -9.04 -44.52 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. ZINC001039162949.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 6.522 kcal (2) G-P(sol) polarization free energy of solvation -35.478 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -28.956 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.038 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -44.516 kcal (6) G-S(sol) free energy of system = (1) + (5) -37.994 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.40 seconds