Wall clock time and date at job start Sat Apr 11 2020 08:05:11 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 N 2 2 C 1.31621 * 1 3 3 Si 1.86798 * 120.00028 * 2 1 4 4 H 1.48509 * 109.47269 * 0.02562 * 3 2 1 5 5 H 1.48505 * 109.47301 * 119.99872 * 3 2 1 6 6 H 1.48498 * 109.47325 * 240.00014 * 3 2 1 7 7 C 1.38814 * 120.00112 * 180.02562 * 2 1 3 8 8 H 1.07998 * 120.00252 * 180.02562 * 7 2 1 9 9 N 1.36940 * 119.99813 * 359.97438 * 7 2 1 10 10 C 1.46496 * 119.99837 * 179.97438 * 9 7 2 11 11 C 1.53000 * 109.46800 * 180.02562 * 10 9 7 12 12 H 1.09003 * 109.47515 * 295.00017 * 11 10 9 13 13 N 1.46494 * 109.47295 * 55.00584 * 11 10 9 14 14 C 1.34777 * 120.00339 * 235.23624 * 13 11 10 15 15 O 1.21282 * 119.99718 * 5.01869 * 14 13 11 16 16 C 1.50696 * 120.00554 * 185.02243 * 14 13 11 17 17 H 1.09002 * 109.50077 * 59.92907 * 16 14 13 18 18 C 1.53112 * 109.50258 * 179.97438 * 16 14 13 19 19 C 1.53278 * 109.71705 * 189.85567 * 18 16 14 20 20 N 1.46470 * 108.69598 * 309.26467 * 19 18 16 21 21 C 1.34412 * 128.44216 * 197.27556 * 20 19 18 22 22 N 1.30781 * 108.55383 * 179.87596 * 21 20 19 23 23 C 1.34432 * 109.32168 * 0.04173 * 22 21 20 24 24 C 1.33859 * 107.79583 * 0.02562 * 23 22 21 25 25 C 1.50712 * 128.67633 * 179.85804 * 24 23 22 26 26 C 1.53004 * 109.47082 * 175.00221 * 11 10 9 27 27 C 1.54261 * 110.03360 * 295.34243 * 26 11 10 28 28 C 1.54967 * 104.15891 * 217.13353 * 27 26 11 29 29 C 1.54885 * 102.77935 * 37.88753 * 28 27 26 30 30 C 1.53873 * 110.03598 * 178.11838 * 26 11 10 31 31 H 0.96995 * 119.99827 * 180.02562 * 1 2 3 32 32 H 0.97002 * 120.00005 * 0.02562 * 9 7 2 33 33 H 1.08995 * 109.47528 * 300.00568 * 10 9 7 34 34 H 1.09003 * 109.47120 * 60.00842 * 10 9 7 35 35 H 0.97001 * 120.00191 * 55.23442 * 13 11 10 36 36 H 1.09000 * 109.43162 * 309.93067 * 18 16 14 37 37 H 1.09001 * 109.42900 * 69.77843 * 18 16 14 38 38 H 1.09005 * 109.59722 * 69.02787 * 19 18 16 39 39 H 1.09002 * 109.60355 * 189.50038 * 19 18 16 40 40 H 1.07994 * 125.72325 * 359.87210 * 21 20 19 41 41 H 1.07999 * 126.09869 * 179.97438 * 23 22 21 42 42 H 1.08994 * 109.74221 * 76.21383 * 25 24 23 43 43 H 1.08998 * 109.74462 * 315.48789 * 25 24 23 44 44 H 1.09011 * 110.01202 * 56.72742 * 26 11 10 45 45 H 1.09007 * 110.48451 * 335.78040 * 27 26 11 46 46 H 1.09004 * 110.49345 * 98.42127 * 27 26 11 47 47 H 1.08995 * 110.71900 * 279.57197 * 28 27 26 48 48 H 1.09009 * 110.76291 * 156.22044 * 28 27 26 49 49 H 1.08992 * 110.48747 * 203.40918 * 29 28 27 50 50 H 1.09001 * 110.59898 * 80.81263 * 29 28 27 51 51 H 1.08994 * 110.03395 * 238.57371 * 30 26 11 52 52 H 1.09003 * 110.02901 * 359.95337 * 30 26 11 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 2.2502 1.6177 0.0000 4 1 1.2852 2.7465 0.0006 5 1 3.1040 1.6964 1.2125 6 1 3.1040 1.6964 -1.2125 7 6 2.0103 -1.2021 -0.0005 8 1 3.0903 -1.2022 -0.0001 9 7 1.3256 -2.3881 -0.0005 10 6 2.0581 -3.6568 -0.0017 11 6 1.0638 -4.8196 -0.0021 12 1 0.4979 -4.8142 0.9295 13 7 0.1440 -4.6753 -1.1331 14 6 -1.1870 -4.6585 -0.9214 15 8 -1.6211 -4.6711 0.2110 16 6 -2.1357 -4.6242 -2.0917 17 1 -1.9785 -5.5055 -2.7136 18 6 -3.5787 -4.6114 -1.5797 19 6 -4.5447 -4.8238 -2.7506 20 7 -4.2056 -3.8784 -3.8166 21 6 -4.9557 -3.4958 -4.8643 22 7 -4.2732 -2.6337 -5.5721 23 6 -3.0715 -2.4412 -5.0009 24 6 -3.0112 -3.2096 -3.9064 25 6 -1.8801 -3.3587 -2.9216 26 6 1.8246 -6.1411 -0.1289 27 6 2.5367 -6.2118 -1.4955 28 6 2.4090 -7.6987 -1.9130 29 6 0.9871 -8.0708 -1.4246 30 6 0.8400 -7.3227 -0.0834 31 1 -0.4849 -0.8400 0.0004 32 1 0.3556 -2.3881 -0.0005 33 1 2.6841 -3.7141 -0.8920 34 1 2.6853 -3.7150 0.8879 35 1 0.4928 -4.5918 -2.0343 36 1 -3.7117 -5.4104 -0.8503 37 1 -3.7872 -3.6516 -1.1071 38 1 -4.4495 -5.8440 -3.1227 39 1 -5.5675 -4.6477 -2.4175 40 1 -5.9546 -3.8423 -5.0845 41 1 -2.2935 -1.7846 -5.3613 42 1 -1.8464 -2.4892 -2.2652 43 1 -0.9355 -3.4534 -3.4573 44 1 2.5532 -6.2309 0.6769 45 1 2.0373 -5.5681 -2.2197 46 1 3.5853 -5.9318 -1.3943 47 1 3.1614 -8.3063 -1.4104 48 1 2.4856 -7.8041 -2.9953 49 1 0.9056 -9.1469 -1.2720 50 1 0.2355 -7.7292 -2.1363 51 1 1.0912 -7.9864 0.7439 52 1 -0.1798 -6.9547 0.0299 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 ZINC001278249683.mol2 52 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 08:05:11 Heat of formation + Delta-G solvation = 19.114301 kcal Electronic energy + Delta-G solvation = -32233.397871 eV Core-core repulsion = 28233.098611 eV Total energy + Delta-G solvation = -4000.299260 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 346.211 amu Computer time = 0.80 seconds Orbital eigenvalues (eV) -42.34034 -40.25391 -38.38208 -36.27069 -35.38324 -33.79560 -33.15177 -31.20017 -30.51699 -29.65955 -28.77577 -27.96744 -26.07264 -24.76785 -23.46741 -22.83331 -21.69339 -21.47766 -20.76232 -20.06955 -19.30473 -19.12428 -17.33058 -17.23881 -17.08540 -16.12724 -15.95570 -15.75190 -15.11778 -14.73717 -14.51509 -14.19119 -14.03170 -13.90710 -13.74908 -13.67794 -13.51342 -13.33565 -13.15517 -13.12114 -12.79443 -12.36174 -12.06311 -11.94455 -11.87375 -11.29318 -11.18029 -11.15963 -11.10125 -10.94792 -10.73787 -10.68838 -10.60727 -10.54559 -10.34982 -10.00795 -9.97799 -9.55070 -9.53369 -9.20795 -8.88014 -8.71638 -8.30649 -6.98577 -6.07713 -3.07854 2.06293 2.72167 2.78478 3.20102 3.30314 3.52377 3.55831 3.73676 4.25025 4.42593 4.48756 4.50922 4.59607 4.63015 4.64504 4.73446 4.73832 4.90685 4.97807 5.08755 5.15684 5.25274 5.37262 5.39971 5.40918 5.54090 5.56865 5.57844 5.60249 5.64023 5.66645 5.75100 5.82116 5.83095 5.86786 5.89682 5.93453 6.04332 6.04909 6.09972 6.21040 6.25076 6.35690 6.36638 6.41591 6.60968 6.77446 6.86102 7.20229 7.69406 7.81499 8.08126 8.41419 8.78024 9.24882 10.11629 10.26951 11.39985 Molecular weight = 346.21amu Principal moments of inertia in cm(-1) A = 0.006436 B = 0.004908 C = 0.003146 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 4349.596649 B = 5704.172588 C = 8898.443780 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 N -0.940 5.940 2 C -0.043 4.043 3 Si 1.078 2.922 4 H -0.285 1.285 5 H -0.296 1.296 6 H -0.296 1.296 7 C -0.333 4.333 8 H 0.063 0.937 9 N -0.739 5.739 10 C 0.149 3.851 11 C 0.135 3.865 12 H 0.099 0.901 13 N -0.704 5.704 14 C 0.523 3.477 15 O -0.539 6.539 16 C -0.108 4.108 17 H 0.096 0.904 18 C -0.115 4.115 19 C 0.106 3.894 20 N -0.457 5.457 21 C 0.177 3.823 22 N -0.497 5.497 23 C -0.022 4.022 24 C -0.013 4.013 25 C -0.038 4.038 26 C -0.098 4.098 27 C -0.117 4.117 28 C -0.124 4.124 29 C -0.120 4.120 30 C -0.118 4.118 31 H 0.254 0.746 32 H 0.369 0.631 33 H 0.024 0.976 34 H 0.027 0.973 35 H 0.398 0.602 36 H 0.097 0.903 37 H 0.084 0.916 38 H 0.084 0.916 39 H 0.094 0.906 40 H 0.202 0.798 41 H 0.170 0.830 42 H 0.098 0.902 43 H 0.092 0.908 44 H 0.081 0.919 45 H 0.065 0.935 46 H 0.067 0.933 47 H 0.064 0.936 48 H 0.062 0.938 49 H 0.059 0.941 50 H 0.060 0.940 51 H 0.059 0.941 52 H 0.066 0.934 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -4.022 -18.270 -6.824 19.914 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 -0.586 5.586 2 C -0.241 4.241 3 Si 0.909 3.091 4 H -0.210 1.210 5 H -0.224 1.224 6 H -0.223 1.223 7 C -0.464 4.464 8 H 0.081 0.919 9 N -0.385 5.385 10 C 0.021 3.979 11 C 0.031 3.969 12 H 0.117 0.883 13 N -0.355 5.355 14 C 0.309 3.691 15 O -0.416 6.416 16 C -0.129 4.129 17 H 0.114 0.886 18 C -0.154 4.154 19 C -0.017 4.017 20 N -0.142 5.142 21 C -0.105 4.105 22 N -0.215 5.215 23 C -0.169 4.169 24 C -0.127 4.127 25 C -0.077 4.077 26 C -0.118 4.118 27 C -0.155 4.155 28 C -0.162 4.162 29 C -0.158 4.158 30 C -0.156 4.156 31 H 0.066 0.934 32 H 0.203 0.797 33 H 0.042 0.958 34 H 0.045 0.955 35 H 0.233 0.767 36 H 0.115 0.885 37 H 0.103 0.897 38 H 0.102 0.898 39 H 0.113 0.887 40 H 0.219 0.781 41 H 0.188 0.812 42 H 0.116 0.884 43 H 0.110 0.890 44 H 0.100 0.900 45 H 0.084 0.916 46 H 0.086 0.914 47 H 0.083 0.917 48 H 0.081 0.919 49 H 0.077 0.923 50 H 0.079 0.921 51 H 0.078 0.922 52 H 0.084 0.916 Dipole moment (debyes) X Y Z Total from point charges -4.589 -16.340 -6.606 18.212 hybrid contribution 0.382 -2.015 0.335 2.078 sum -4.207 -18.354 -6.272 19.847 Atomic orbital electron populations 1.70883 1.05988 1.28373 1.53307 1.25725 0.97041 1.00860 1.00446 0.83267 0.74235 0.75776 0.75789 1.21048 1.22369 1.22303 1.19994 0.91896 0.85831 1.48688 0.91940 1.42283 1.04972 1.00571 1.90640 1.20932 0.93087 0.85364 0.98545 1.21377 0.90939 0.93931 0.90697 0.88315 1.45838 1.05427 1.73436 1.10796 1.20241 0.83062 0.75663 0.90146 1.90709 1.77248 1.49748 1.23898 1.21389 0.95136 1.00273 0.96140 0.88559 1.21695 0.91755 1.05549 0.96352 1.22025 1.00628 0.92260 0.86754 1.45443 1.13383 1.33939 1.21439 1.24730 0.99378 0.99150 0.87238 1.70485 1.05286 1.16405 1.29355 1.21867 0.96612 1.03359 0.95084 1.21049 0.89343 1.01193 1.01108 1.20219 0.94841 0.97746 0.94892 1.22108 0.97127 0.94235 0.98361 1.22415 1.00483 0.96101 0.96455 1.22505 0.96843 0.96524 1.00284 1.22310 0.97041 0.99382 0.97074 1.22154 0.99888 0.96343 0.97178 0.93448 0.79747 0.95826 0.95517 0.76661 0.88506 0.89729 0.89769 0.88746 0.78119 0.81246 0.88369 0.88998 0.90050 0.91603 0.91426 0.91711 0.91903 0.92252 0.92111 0.92204 0.91562 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 N -0.94 -29.11 13.70 55.49 0.76 -28.35 16 2 C -0.04 -1.24 5.50 -17.43 -0.10 -1.33 16 3 Si 1.08 26.03 29.92 -169.99 -5.09 20.95 16 4 H -0.29 -7.03 7.11 56.52 0.40 -6.63 16 5 H -0.30 -6.87 7.11 56.52 0.40 -6.47 16 6 H -0.30 -6.78 7.11 56.52 0.40 -6.38 16 7 C -0.33 -9.31 9.99 -15.06 -0.15 -9.46 16 8 H 0.06 1.72 7.83 -52.49 -0.41 1.31 16 9 N -0.74 -18.19 5.43 -59.91 -0.33 -18.52 16 10 C 0.15 2.85 5.85 -4.04 -0.02 2.83 16 11 C 0.14 2.08 2.03 -67.93 -0.14 1.94 16 12 H 0.10 1.79 6.91 -51.93 -0.36 1.43 16 13 N -0.70 -9.79 3.60 -53.81 -0.19 -9.98 16 14 C 0.52 7.72 6.31 -10.99 -0.07 7.65 16 15 O -0.54 -9.96 15.13 5.56 0.08 -9.88 16 16 C -0.11 -1.26 2.55 -91.47 -0.23 -1.49 16 17 H 0.10 0.93 8.12 -51.93 -0.42 0.50 16 18 C -0.12 -1.26 4.66 -26.53 -0.12 -1.38 16 19 C 0.11 0.89 7.00 -3.91 -0.03 0.87 16 20 N -0.46 -5.28 3.13 -114.09 -0.36 -5.64 16 21 C 0.18 2.10 12.66 -90.71 -1.15 0.95 16 22 N -0.50 -7.49 11.27 -14.87 -0.17 -7.65 16 23 C -0.02 -0.33 11.84 -17.95 -0.21 -0.54 16 24 C -0.01 -0.17 6.57 -81.73 -0.54 -0.71 16 25 C -0.04 -0.51 5.42 -27.63 -0.15 -0.66 16 26 C -0.10 -1.17 2.79 -89.50 -0.25 -1.42 16 27 C -0.12 -1.23 5.19 -25.03 -0.13 -1.36 16 28 C -0.12 -1.11 6.91 -24.70 -0.17 -1.28 16 29 C -0.12 -1.12 6.83 -25.07 -0.17 -1.29 16 30 C -0.12 -1.29 6.21 -25.61 -0.16 -1.45 16 31 H 0.25 7.86 6.77 -40.82 -0.28 7.58 16 32 H 0.37 9.54 6.15 -40.82 -0.25 9.29 16 33 H 0.02 0.44 7.24 -51.93 -0.38 0.07 16 34 H 0.03 0.54 8.14 -51.93 -0.42 0.11 16 35 H 0.40 4.97 6.73 -40.82 -0.27 4.69 16 36 H 0.10 1.00 7.77 -51.93 -0.40 0.60 16 37 H 0.08 1.13 8.11 -51.93 -0.42 0.71 16 38 H 0.08 0.55 8.14 -51.93 -0.42 0.13 16 39 H 0.09 0.62 8.14 -51.93 -0.42 0.20 16 40 H 0.20 1.55 8.06 -52.49 -0.42 1.13 16 41 H 0.17 2.32 8.06 -52.49 -0.42 1.89 16 42 H 0.10 1.63 8.11 -51.93 -0.42 1.20 16 43 H 0.09 1.10 7.86 -51.93 -0.41 0.69 16 44 H 0.08 0.96 8.14 -51.92 -0.42 0.53 16 45 H 0.07 0.71 6.04 -51.93 -0.31 0.40 16 46 H 0.07 0.72 8.14 -51.93 -0.42 0.29 16 47 H 0.06 0.55 8.14 -51.93 -0.42 0.13 16 48 H 0.06 0.52 8.14 -51.92 -0.42 0.10 16 49 H 0.06 0.50 8.14 -51.93 -0.42 0.08 16 50 H 0.06 0.56 8.14 -51.93 -0.42 0.14 16 51 H 0.06 0.62 8.14 -51.93 -0.42 0.20 16 52 H 0.07 0.84 6.71 -51.93 -0.35 0.50 16 LS Contribution 403.70 15.07 6.08 6.08 Total: -1.00 -35.16 403.70 -11.55 -46.71 By element: Atomic # 1 Polarization: 22.98 SS G_CDS: -8.55 Total: 14.43 kcal Atomic # 6 Polarization: -4.35 SS G_CDS: -3.79 Total: -8.14 kcal Atomic # 7 Polarization: -69.86 SS G_CDS: -0.28 Total: -70.14 kcal Atomic # 8 Polarization: -9.96 SS G_CDS: 0.08 Total: -9.88 kcal Atomic # 14 Polarization: 26.03 SS G_CDS: -5.09 Total: 20.95 kcal Total LS contribution 6.08 Total: 6.08 kcal Total: -35.16 -11.55 -46.71 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. ZINC001278249683.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 65.820 kcal (2) G-P(sol) polarization free energy of solvation -35.159 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 30.661 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -11.546 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -46.706 kcal (6) G-S(sol) free energy of system = (1) + (5) 19.114 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.80 seconds