Wall clock time and date at job start Sat Apr 11 2020 06:09:11 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 C 1.53000 * 1 3 3 C 1.53003 * 109.47118 * 2 1 4 4 C 1.50705 * 109.50282 * 60.07518 * 3 2 1 5 5 O 1.20823 * 119.99734 * 119.92010 * 4 3 2 6 6 O 1.34222 * 120.00142 * 299.92720 * 4 3 2 7 7 C 1.45199 * 117.00304 * 180.02562 * 6 4 3 8 8 C 1.52999 * 109.47384 * 59.99184 * 7 6 4 9 9 C 1.52996 * 109.47564 * 179.97438 * 7 6 4 10 10 C 1.53003 * 109.46901 * 299.99630 * 7 6 4 11 11 C 1.53119 * 109.50323 * 300.00086 * 3 2 1 12 12 C 1.53121 * 109.15914 * 297.71150 * 11 3 2 13 13 C 1.53040 * 109.27937 * 302.34798 * 12 11 3 14 14 N 1.46851 * 109.52400 * 59.17623 * 13 12 11 15 15 C 1.46896 * 110.99872 * 174.16130 * 14 13 12 16 16 C 1.50700 * 109.46942 * 66.04706 * 15 14 13 17 17 O 1.21293 * 120.00282 * 359.97438 * 16 15 14 18 18 N 1.34777 * 120.00075 * 179.97438 * 16 15 14 19 19 C 1.37104 * 120.00173 * 180.02562 * 18 16 15 20 20 H 1.08002 * 119.99666 * 359.97438 * 19 18 16 21 21 C 1.38945 * 120.00001 * 180.27893 * 19 18 16 22 22 N 1.31414 * 119.99893 * 359.72318 * 21 19 18 23 23 Si 1.86801 * 119.99957 * 179.72309 * 21 19 18 24 24 H 1.48501 * 109.46896 * 89.99808 * 23 21 19 25 25 H 1.48504 * 109.46757 * 209.99794 * 23 21 19 26 26 H 1.48492 * 109.47185 * 329.99590 * 23 21 19 27 27 C 1.46844 * 111.19549 * 298.26095 * 14 13 12 28 28 H 1.08998 * 109.47049 * 300.00083 * 1 2 3 29 29 H 1.08996 * 109.47047 * 60.00333 * 1 2 3 30 30 H 1.09003 * 109.46590 * 180.02562 * 1 2 3 31 31 H 1.08998 * 109.47516 * 240.00172 * 2 1 3 32 32 H 1.09004 * 109.46881 * 119.99428 * 2 1 3 33 33 H 1.09001 * 109.46656 * 60.00405 * 8 7 6 34 34 H 1.08999 * 109.47076 * 180.02562 * 8 7 6 35 35 H 1.09000 * 109.47399 * 300.00785 * 8 7 6 36 36 H 1.09004 * 109.47313 * 59.99911 * 9 7 6 37 37 H 1.08999 * 109.47379 * 179.97438 * 9 7 6 38 38 H 1.09001 * 109.47057 * 299.99950 * 9 7 6 39 39 H 1.09006 * 109.47016 * 59.99470 * 10 7 6 40 40 H 1.08999 * 109.47393 * 180.02562 * 10 7 6 41 41 H 1.09008 * 109.46866 * 300.00256 * 10 7 6 42 42 H 1.08995 * 109.52356 * 177.80357 * 11 3 2 43 43 H 1.08998 * 109.57386 * 57.64697 * 11 3 2 44 44 H 1.08998 * 109.50720 * 182.40108 * 12 11 3 45 45 H 1.09004 * 109.53428 * 62.30391 * 12 11 3 46 46 H 1.08998 * 109.45841 * 299.16311 * 13 12 11 47 47 H 1.08994 * 109.45235 * 179.18876 * 13 12 11 48 48 H 1.08994 * 109.47346 * 306.05012 * 15 14 13 49 49 H 1.08998 * 109.47279 * 186.04684 * 15 14 13 50 50 H 0.97000 * 120.00140 * 0.02562 * 18 16 15 51 51 H 0.97004 * 119.99542 * 180.02562 * 22 21 19 52 52 H 1.09001 * 109.45981 * 181.75660 * 27 14 13 53 53 H 1.09002 * 109.46484 * 301.72096 * 27 14 13 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 1.5300 0.0000 0.0000 3 6 2.0400 1.4425 0.0000 4 6 1.5396 2.1531 1.2312 5 8 2.3260 2.6108 2.0261 6 8 0.2203 2.2774 1.4447 7 6 -0.1896 2.9741 2.6509 8 6 0.3594 4.4021 2.6266 9 6 -1.7173 3.0167 2.7213 10 6 0.3575 2.2383 3.8757 11 6 1.5300 2.1651 -1.2500 12 6 2.0909 1.4722 -2.4949 13 6 3.6198 1.4722 -2.4275 14 7 4.0576 0.7690 -1.2149 15 6 5.5196 0.6284 -1.1868 16 6 6.1528 1.9901 -1.0600 17 8 5.4549 2.9803 -0.9995 18 7 7.4946 2.1076 -1.0138 19 6 8.0707 3.3463 -0.8979 20 1 7.4492 4.2280 -0.8441 21 6 9.4542 3.4679 -0.8561 22 7 10.2104 2.3952 -0.9221 23 14 10.2393 5.1563 -0.7060 24 1 10.4147 5.4948 0.7292 25 1 11.5635 5.1479 -1.3781 26 1 9.3639 6.1683 -1.3499 27 6 3.5703 1.4435 -0.0049 28 1 -0.3633 0.5138 0.8900 29 1 -0.3633 0.5138 -0.8900 30 1 -0.3632 -1.0277 0.0005 31 1 1.8934 -0.5138 -0.8900 32 1 1.8933 -0.5138 0.8901 33 1 -0.0304 4.9263 1.7540 34 1 0.0520 4.9249 3.5323 35 1 1.4478 4.3722 2.5763 36 1 -2.1087 1.9995 2.7385 37 1 -2.0249 3.5393 3.6270 38 1 -2.1067 3.5411 1.8487 39 1 1.4460 2.2083 3.8254 40 1 0.0495 2.7610 4.7813 41 1 -0.0335 1.2209 3.8930 42 1 1.8606 3.2035 -1.2308 43 1 0.4408 2.1300 -1.2732 44 1 1.7660 2.0077 -3.3870 45 1 1.7285 0.4450 -2.5348 46 1 3.9822 2.4999 -2.4022 47 1 4.0219 0.9668 -3.3055 48 1 5.8569 0.1554 -2.1089 49 1 5.8090 0.0124 -0.3354 50 1 8.0528 1.3158 -1.0625 51 1 11.1762 2.4801 -0.8925 52 1 3.9366 0.9173 0.8766 53 1 3.9330 2.4713 0.0091 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 ZINC000932686280.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 06:09:11 Heat of formation + Delta-G solvation = -126.470912 kcal Electronic energy + Delta-G solvation = -32513.944121 eV Core-core repulsion = 28385.497672 eV Total energy + Delta-G solvation = -4128.446449 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.80 seconds Orbital eigenvalues (eV) -41.21295 -39.50863 -37.85983 -36.70944 -34.92556 -33.97380 -33.50604 -31.85069 -31.26344 -29.66605 -27.56295 -27.50771 -27.33324 -24.80009 -24.57586 -23.38032 -22.38469 -21.48763 -19.83430 -19.22153 -18.49069 -17.79622 -16.84581 -16.63814 -16.04842 -16.00982 -15.31086 -14.87074 -14.73273 -14.59890 -14.47413 -14.04355 -13.92424 -13.73790 -13.66159 -13.37260 -13.03749 -12.82203 -12.61948 -12.50677 -12.41924 -12.27052 -12.13100 -12.01946 -11.81766 -11.62189 -11.55641 -11.42195 -11.30778 -11.17503 -10.98581 -10.79268 -10.64889 -10.51583 -10.42741 -10.32395 -10.25581 -10.21056 -10.01969 -9.62223 -9.45034 -9.17512 -7.98332 -7.37786 -6.44240 -3.85276 2.39656 2.67842 3.15556 3.24842 3.30590 3.84427 4.15899 4.33818 4.57099 4.61504 4.62718 4.76244 4.79534 4.89845 5.02414 5.18150 5.22090 5.30470 5.30826 5.34080 5.38997 5.45490 5.53119 5.58723 5.62090 5.71846 5.72228 5.74910 5.80532 5.83530 5.90716 5.95162 6.00897 6.05241 6.13557 6.14660 6.17722 6.18237 6.21502 6.25330 6.29860 6.41947 6.49850 6.62132 6.68654 6.80827 7.36688 7.46072 7.52624 7.99601 8.02695 8.57474 9.14574 9.50720 10.01539 10.72372 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.014079 B = 0.003134 C = 0.002764 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1988.326093 B = 8932.752819 C =10128.681511 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.166 4.166 2 C -0.105 4.105 3 C -0.040 4.040 4 C 0.475 3.525 5 O -0.496 6.496 6 O -0.342 6.342 7 C 0.111 3.889 8 C -0.184 4.184 9 C -0.138 4.138 10 C -0.182 4.182 11 C -0.108 4.108 12 C -0.110 4.110 13 C 0.037 3.963 14 N -0.510 5.510 15 C 0.043 3.957 16 C 0.406 3.594 17 O -0.591 6.591 18 N -0.556 5.556 19 C -0.301 4.301 20 H 0.102 0.898 21 C 0.024 3.976 22 N -0.899 5.899 23 Si 0.929 3.071 24 H -0.278 1.278 25 H -0.283 1.283 26 H -0.270 1.270 27 C 0.055 3.945 28 H 0.072 0.928 29 H 0.057 0.943 30 H 0.049 0.951 31 H 0.092 0.908 32 H 0.059 0.941 33 H 0.060 0.940 34 H 0.068 0.932 35 H 0.085 0.915 36 H 0.065 0.935 37 H 0.075 0.925 38 H 0.065 0.935 39 H 0.084 0.916 40 H 0.068 0.932 41 H 0.059 0.941 42 H 0.065 0.935 43 H 0.074 0.926 44 H 0.066 0.934 45 H 0.070 0.930 46 H 0.069 0.931 47 H 0.066 0.934 48 H 0.090 0.910 49 H 0.089 0.911 50 H 0.393 0.607 51 H 0.272 0.728 52 H 0.068 0.932 53 H 0.096 0.904 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -21.335 -4.980 2.817 22.089 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 -0.223 4.223 2 C -0.142 4.142 3 C -0.042 4.042 4 C 0.317 3.683 5 O -0.382 6.382 6 O -0.260 6.260 7 C 0.075 3.925 8 C -0.241 4.241 9 C -0.195 4.195 10 C -0.240 4.240 11 C -0.145 4.145 12 C -0.148 4.148 13 C -0.091 4.091 14 N -0.232 5.232 15 C -0.089 4.089 16 C 0.192 3.808 17 O -0.479 6.479 18 N -0.192 5.192 19 C -0.431 4.431 20 H 0.120 0.880 21 C -0.178 4.178 22 N -0.540 5.540 23 Si 0.756 3.244 24 H -0.204 1.204 25 H -0.209 1.209 26 H -0.194 1.194 27 C -0.073 4.073 28 H 0.091 0.909 29 H 0.076 0.924 30 H 0.068 0.932 31 H 0.111 0.889 32 H 0.078 0.922 33 H 0.079 0.921 34 H 0.086 0.914 35 H 0.104 0.896 36 H 0.084 0.916 37 H 0.093 0.907 38 H 0.084 0.916 39 H 0.103 0.897 40 H 0.087 0.913 41 H 0.079 0.921 42 H 0.084 0.916 43 H 0.092 0.908 44 H 0.085 0.915 45 H 0.089 0.911 46 H 0.087 0.913 47 H 0.085 0.915 48 H 0.108 0.892 49 H 0.107 0.893 50 H 0.226 0.774 51 H 0.082 0.918 52 H 0.087 0.913 53 H 0.114 0.886 Dipole moment (debyes) X Y Z Total from point charges -21.565 -4.660 3.114 22.282 hybrid contribution 1.348 1.216 0.300 1.840 sum -20.217 -3.445 3.414 20.791 Atomic orbital electron populations 1.22135 0.95684 1.01157 1.03295 1.21509 0.95634 0.93395 1.03669 1.20622 0.97246 0.95933 0.90355 1.23662 0.80359 0.76897 0.87343 1.90595 1.56835 1.44843 1.45972 1.86651 1.25969 1.69805 1.43576 1.22147 0.95152 0.91957 0.83216 1.22489 1.04407 0.94741 1.02455 1.21831 0.91978 1.02988 1.02751 1.22482 1.04282 1.00341 0.96846 1.21627 1.00558 0.99354 0.92970 1.21567 0.95659 1.00880 0.96697 1.22274 0.94576 0.99991 0.92224 1.62371 1.08747 1.49788 1.02345 1.22030 0.87686 0.95754 1.03455 1.21100 0.83380 0.91391 0.84931 1.90399 1.61183 1.39480 1.56792 1.42050 1.05066 1.09549 1.62504 1.19711 0.90110 0.86126 1.47115 0.88002 1.25275 0.96266 0.99116 0.97158 1.69614 1.05731 1.28565 1.50078 0.85873 0.78283 0.81764 0.78477 1.20354 1.20870 1.19443 1.22240 0.89894 1.02739 0.92406 0.90892 0.92418 0.93217 0.88923 0.92209 0.92076 0.91352 0.89600 0.91617 0.90666 0.91564 0.89685 0.91344 0.92146 0.91629 0.90763 0.91534 0.91144 0.91314 0.91524 0.89177 0.89267 0.77388 0.91799 0.91325 0.88639 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 -0.17 -1.68 9.05 37.16 0.34 -1.35 16 2 C -0.10 -1.25 4.54 -26.73 -0.12 -1.38 16 3 C -0.04 -0.57 0.51 -155.58 -0.08 -0.65 16 4 C 0.48 7.13 5.80 36.01 0.21 7.34 16 5 O -0.50 -8.86 11.49 -18.75 -0.22 -9.07 16 6 O -0.34 -4.31 6.75 -39.24 -0.26 -4.58 16 7 C 0.11 1.22 1.13 -90.62 -0.10 1.12 16 8 C -0.18 -2.13 8.37 37.16 0.31 -1.82 16 9 C -0.14 -1.10 8.85 37.16 0.33 -0.77 16 10 C -0.18 -1.98 8.37 37.16 0.31 -1.67 16 11 C -0.11 -1.42 4.43 -26.61 -0.12 -1.54 16 12 C -0.11 -1.37 5.74 -26.65 -0.15 -1.53 16 13 C 0.04 0.58 5.09 -3.83 -0.02 0.56 16 14 N -0.51 -8.29 4.14 -236.12 -0.98 -9.27 16 15 C 0.04 0.75 5.86 -4.98 -0.03 0.72 16 16 C 0.41 9.35 7.20 -10.98 -0.08 9.27 16 17 O -0.59 -15.26 11.20 5.55 0.06 -15.20 16 18 N -0.56 -14.01 5.29 -10.96 -0.06 -14.07 16 19 C -0.30 -8.39 9.68 -14.93 -0.14 -8.53 16 20 H 0.10 3.00 7.16 -52.49 -0.38 2.62 16 21 C 0.02 0.64 5.50 -17.47 -0.10 0.55 16 22 N -0.90 -24.50 13.05 55.50 0.72 -23.78 16 23 Si 0.93 21.22 29.55 -169.99 -5.02 16.20 16 24 H -0.28 -6.30 7.11 56.52 0.40 -5.90 16 25 H -0.28 -6.31 7.11 56.52 0.40 -5.91 16 26 H -0.27 -6.16 7.11 56.52 0.40 -5.76 16 27 C 0.05 0.96 2.99 -3.84 -0.01 0.95 16 28 H 0.07 0.78 5.33 -51.93 -0.28 0.51 16 29 H 0.06 0.56 6.38 -51.93 -0.33 0.23 16 30 H 0.05 0.44 8.14 -51.93 -0.42 0.02 16 31 H 0.09 1.11 6.01 -51.93 -0.31 0.80 16 32 H 0.06 0.74 8.14 -51.93 -0.42 0.31 16 33 H 0.06 0.68 8.14 -51.93 -0.42 0.26 16 34 H 0.07 0.65 8.14 -51.93 -0.42 0.23 16 35 H 0.09 1.26 5.89 -51.93 -0.31 0.96 16 36 H 0.06 0.49 8.14 -51.93 -0.42 0.06 16 37 H 0.07 0.48 8.14 -51.93 -0.42 0.06 16 38 H 0.07 0.51 8.14 -51.93 -0.42 0.09 16 39 H 0.08 1.16 5.89 -51.93 -0.31 0.85 16 40 H 0.07 0.62 8.14 -51.93 -0.42 0.19 16 41 H 0.06 0.60 8.14 -51.92 -0.42 0.18 16 42 H 0.06 0.99 8.14 -51.93 -0.42 0.56 16 43 H 0.07 0.85 6.32 -51.93 -0.33 0.52 16 44 H 0.07 0.74 8.14 -51.93 -0.42 0.31 16 45 H 0.07 0.79 6.59 -51.93 -0.34 0.45 16 46 H 0.07 1.33 6.00 -51.93 -0.31 1.02 16 47 H 0.07 0.97 8.06 -51.93 -0.42 0.55 16 48 H 0.09 1.42 8.06 -51.93 -0.42 1.00 16 49 H 0.09 1.46 8.14 -51.93 -0.42 1.04 16 50 H 0.39 9.50 7.90 -40.82 -0.32 9.18 16 51 H 0.27 7.02 8.31 -40.82 -0.34 6.68 16 52 H 0.07 1.25 8.10 -51.93 -0.42 0.83 16 53 H 0.10 2.10 5.30 -51.93 -0.28 1.82 16 LS Contribution 394.89 15.07 5.95 5.95 Total: -1.00 -30.57 394.89 -8.21 -38.78 By element: Atomic # 1 Polarization: 22.72 SS G_CDS: -8.95 Total: 13.76 kcal Atomic # 6 Polarization: 0.73 SS G_CDS: 0.54 Total: 1.27 kcal Atomic # 7 Polarization: -46.81 SS G_CDS: -0.31 Total: -47.12 kcal Atomic # 8 Polarization: -28.43 SS G_CDS: -0.42 Total: -28.85 kcal Atomic # 14 Polarization: 21.22 SS G_CDS: -5.02 Total: 16.20 kcal Total LS contribution 5.95 Total: 5.95 kcal Total: -30.57 -8.21 -38.78 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. ZINC000932686280.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 -87.690 kcal (2) G-P(sol) polarization free energy of solvation -30.569 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -118.259 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.212 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -38.781 kcal (6) G-S(sol) free energy of system = (1) + (5) -126.471 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.80 seconds