Wall clock time and date at job start Sat Apr 11 2020 06:11:48 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 1.53001 * 1 3 3 N 1.46898 * 109.47127 * 2 1 4 4 C 1.46909 * 110.99920 * 297.53958 * 3 2 1 5 5 C 1.53000 * 109.46968 * 288.27168 * 4 3 2 6 6 C 1.53004 * 109.46774 * 179.97438 * 5 4 3 7 7 N 1.46510 * 109.46731 * 180.02562 * 6 5 4 8 8 C 1.34778 * 119.99702 * 180.02562 * 7 6 5 9 9 O 1.21280 * 119.99742 * 0.02562 * 8 7 6 10 10 C 1.50700 * 119.99706 * 179.97438 * 8 7 6 11 11 H 1.08997 * 110.36533 * 42.34718 * 10 8 7 12 12 C 1.54380 * 110.40989 * 279.99697 * 10 8 7 13 13 C 1.54251 * 105.06166 * 217.36916 * 12 10 8 14 14 C 1.54379 * 105.06188 * 0.02562 * 13 12 10 15 15 N 1.48562 * 110.40891 * 164.82702 * 10 8 7 16 16 C 1.46898 * 110.99973 * 277.81504 * 15 10 8 17 17 C 1.46897 * 111.00462 * 61.49343 * 3 2 1 18 18 C 1.50699 * 109.47220 * 66.04686 * 17 3 2 19 19 O 1.21300 * 119.99602 * 0.02562 * 18 17 3 20 20 N 1.34773 * 120.00310 * 180.02562 * 18 17 3 21 21 C 1.37097 * 120.00319 * 180.02562 * 20 18 17 22 22 H 1.07996 * 119.99749 * 359.97438 * 21 20 18 23 23 C 1.38945 * 120.00202 * 180.02562 * 21 20 18 24 24 N 1.31403 * 120.00181 * 359.97438 * 23 21 20 25 25 Si 1.86806 * 120.00107 * 179.97438 * 23 21 20 26 26 H 1.48504 * 109.46968 * 89.99776 * 25 23 21 27 27 H 1.48498 * 109.47189 * 209.99868 * 25 23 21 28 28 H 1.48496 * 109.47154 * 330.00038 * 25 23 21 29 29 H 1.08993 * 109.47209 * 181.26799 * 1 2 3 30 30 H 1.08997 * 109.47404 * 301.27256 * 1 2 3 31 31 H 1.09003 * 109.46799 * 61.27072 * 1 2 3 32 32 H 1.09001 * 109.47532 * 239.99223 * 2 1 3 33 33 H 1.09006 * 109.46865 * 119.99548 * 2 1 3 34 34 H 1.09001 * 109.46721 * 48.27132 * 4 3 2 35 35 H 1.08999 * 109.47470 * 168.27084 * 4 3 2 36 36 H 1.08997 * 109.47453 * 299.98006 * 5 4 3 37 37 H 1.09003 * 109.47032 * 59.98024 * 5 4 3 38 38 H 1.08999 * 109.47224 * 299.99526 * 6 5 4 39 39 H 1.08993 * 109.47125 * 60.00101 * 6 5 4 40 40 H 0.96998 * 119.99961 * 359.97438 * 7 6 5 41 41 H 1.09004 * 110.32414 * 336.27011 * 12 10 8 42 42 H 1.09000 * 110.32443 * 98.47193 * 12 10 8 43 43 H 1.09010 * 110.32772 * 118.89628 * 13 12 10 44 44 H 1.09001 * 110.33096 * 241.00445 * 13 12 10 45 45 H 1.09006 * 110.41507 * 142.62974 * 14 13 12 46 46 H 1.08994 * 110.41356 * 265.07263 * 14 13 12 47 47 H 1.09008 * 109.46719 * 60.00057 * 16 15 10 48 48 H 1.08999 * 109.46910 * 180.02562 * 16 15 10 49 49 H 1.08996 * 109.46962 * 300.00393 * 16 15 10 50 50 H 1.09001 * 109.47371 * 186.04972 * 17 3 2 51 51 H 1.09002 * 109.47158 * 306.05033 * 17 3 2 52 52 H 0.96998 * 119.99666 * 359.97438 * 20 18 17 53 53 H 0.97005 * 120.00671 * 180.02562 * 24 23 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 6 1.5300 0.0000 0.0000 3 7 2.0197 1.3850 0.0000 4 6 1.5973 2.0927 -1.2161 5 6 2.3844 1.5604 -2.4153 6 6 1.9440 2.2971 -3.6819 7 7 2.6973 1.7869 -4.8303 8 6 2.4756 2.2924 -6.0599 9 8 1.6529 3.1698 -6.2156 10 6 3.2508 1.7681 -7.2411 11 1 3.3277 0.6819 -7.1924 12 6 4.6560 2.4058 -7.2888 13 6 4.9469 2.6228 -8.7880 14 6 3.6929 2.0985 -9.5201 15 7 2.6058 2.1880 -8.5118 16 6 1.4922 1.2944 -8.8573 17 6 1.5781 2.0996 1.2051 18 6 2.2303 1.4888 2.4186 19 8 2.9888 0.5507 2.2919 20 7 1.9709 1.9848 3.6446 21 6 2.5647 1.4295 4.7485 22 1 3.2400 0.5943 4.6357 23 6 2.2968 1.9405 6.0125 24 7 1.4747 2.9564 6.1498 25 14 3.1053 1.1834 7.5167 26 1 4.3945 1.8703 7.7843 27 1 2.2092 1.3377 8.6908 28 1 3.3550 -0.2597 7.2709 29 1 -0.3633 -1.0273 0.0227 30 1 -0.3634 0.5334 0.8783 31 1 -0.3633 0.4940 -0.9012 32 1 1.8934 -0.5139 -0.8899 33 1 1.8933 -0.5138 0.8901 34 1 0.5319 1.9301 -1.3796 35 1 1.7885 3.1596 -1.1006 36 1 3.4497 1.7233 -2.2520 37 1 2.1934 0.4935 -2.5306 38 1 0.8787 2.1340 -3.8453 39 1 2.1348 3.3640 -3.5667 40 1 3.3560 1.0860 -4.7056 41 1 4.6570 3.3595 -6.7610 42 1 5.3930 1.7308 -6.8539 43 1 5.0908 3.6830 -8.9963 44 1 5.8279 2.0556 -9.0888 45 1 3.4654 2.7262 -10.3817 46 1 3.8386 1.0639 -9.8303 47 1 0.7468 1.3187 -8.0622 48 1 1.0382 1.6242 -9.7917 49 1 1.8656 0.2771 -8.9743 50 1 1.8620 3.1492 1.1296 51 1 0.4948 2.0219 1.2971 52 1 1.3646 2.7351 3.7458 53 1 1.2879 3.3134 7.0322 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 ZINC001713009352.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 06:11:48 Heat of formation + Delta-G solvation = -59.945559 kcal Electronic energy + Delta-G solvation = -29412.124865 eV Core-core repulsion = 25318.855923 eV Total energy + Delta-G solvation = -4093.268942 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.226 amu Computer time = 0.75 seconds Orbital eigenvalues (eV) -40.49957 -38.99792 -38.32797 -37.08001 -35.29947 -33.85371 -32.72303 -31.97477 -31.25369 -30.12323 -29.66985 -27.13406 -26.11787 -25.07398 -24.23468 -22.97236 -22.02314 -21.43141 -20.60099 -19.80230 -18.95416 -17.78842 -17.64606 -16.68305 -16.30181 -16.14404 -15.86803 -15.51223 -15.16358 -14.88702 -14.66390 -14.51614 -14.27314 -14.22418 -13.83729 -13.66303 -13.43234 -13.23077 -12.91706 -12.86668 -12.46863 -12.27792 -12.06455 -11.96793 -11.90770 -11.85781 -11.75728 -11.56426 -11.53141 -11.45322 -11.16050 -11.11579 -11.06448 -10.79036 -10.39050 -10.27358 -10.20548 -9.96495 -9.45045 -9.27332 -8.93268 -8.41656 -7.95848 -7.78619 -6.40425 -3.81202 2.41397 2.75178 3.18368 3.26896 3.32422 3.63494 3.92486 4.00507 4.10902 4.15049 4.25477 4.44556 4.61790 4.66683 4.83605 4.92972 4.94601 4.98004 5.05112 5.07483 5.11213 5.16440 5.25856 5.30355 5.33323 5.41505 5.45530 5.51770 5.52331 5.55955 5.58016 5.62012 5.66997 5.71204 5.75638 5.94715 6.00523 6.04080 6.16929 6.20874 6.29261 6.30758 6.37572 6.48583 6.64831 7.27570 7.31982 7.44454 7.56286 8.04612 8.08028 8.63589 9.19642 9.56408 10.08418 10.77334 Molecular weight = 340.23amu Principal moments of inertia in cm(-1) A = 0.028089 B = 0.001560 C = 0.001534 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 996.598521 B =17939.130433 C =18252.139586 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.194 4.194 2 C 0.044 3.956 3 N -0.512 5.512 4 C 0.052 3.948 5 C -0.124 4.124 6 C 0.122 3.878 7 N -0.731 5.731 8 C 0.519 3.481 9 O -0.518 6.518 10 C 0.042 3.958 11 H 0.073 0.927 12 C -0.113 4.113 13 C -0.123 4.123 14 C 0.031 3.969 15 N -0.491 5.491 16 C 0.015 3.985 17 C 0.041 3.959 18 C 0.446 3.554 19 O -0.578 6.578 20 N -0.565 5.565 21 C -0.299 4.299 22 H 0.103 0.897 23 C 0.022 3.978 24 N -0.902 5.902 25 Si 0.929 3.071 26 H -0.278 1.278 27 H -0.284 1.284 28 H -0.270 1.270 29 H 0.057 0.943 30 H 0.058 0.942 31 H 0.051 0.949 32 H 0.066 0.934 33 H 0.104 0.896 34 H 0.040 0.960 35 H 0.074 0.926 36 H 0.079 0.921 37 H 0.069 0.931 38 H 0.065 0.935 39 H 0.068 0.932 40 H 0.400 0.600 41 H 0.078 0.922 42 H 0.079 0.921 43 H 0.076 0.924 44 H 0.073 0.927 45 H 0.086 0.914 46 H 0.046 0.954 47 H 0.071 0.929 48 H 0.074 0.926 49 H 0.028 0.972 50 H 0.087 0.913 51 H 0.052 0.948 52 H 0.392 0.608 53 H 0.271 0.729 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 1.848 -2.581 -28.567 28.742 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 -0.253 4.253 2 C -0.084 4.084 3 N -0.235 5.235 4 C -0.077 4.077 5 C -0.163 4.163 6 C -0.002 4.002 7 N -0.384 5.384 8 C 0.304 3.696 9 O -0.392 6.392 10 C -0.070 4.070 11 H 0.091 0.909 12 C -0.151 4.151 13 C -0.161 4.161 14 C -0.096 4.096 15 N -0.215 5.215 16 C -0.134 4.134 17 C -0.090 4.090 18 C 0.231 3.769 19 O -0.462 6.462 20 N -0.202 5.202 21 C -0.428 4.428 22 H 0.121 0.879 23 C -0.179 4.179 24 N -0.543 5.543 25 Si 0.757 3.243 26 H -0.204 1.204 27 H -0.210 1.210 28 H -0.195 1.195 29 H 0.076 0.924 30 H 0.077 0.923 31 H 0.069 0.931 32 H 0.084 0.916 33 H 0.122 0.878 34 H 0.058 0.942 35 H 0.092 0.908 36 H 0.097 0.903 37 H 0.087 0.913 38 H 0.083 0.917 39 H 0.087 0.913 40 H 0.234 0.766 41 H 0.097 0.903 42 H 0.098 0.902 43 H 0.095 0.905 44 H 0.092 0.908 45 H 0.105 0.895 46 H 0.064 0.936 47 H 0.090 0.910 48 H 0.093 0.907 49 H 0.047 0.953 50 H 0.105 0.895 51 H 0.070 0.930 52 H 0.225 0.775 53 H 0.081 0.919 Dipole moment (debyes) X Y Z Total from point charges 1.953 -1.936 -28.541 28.673 hybrid contribution -0.417 -0.995 0.922 1.419 sum 1.536 -2.931 -27.620 27.817 Atomic orbital electron populations 1.22453 0.99243 1.02074 1.01490 1.22353 0.91757 0.90136 1.04151 1.61791 1.59399 1.02166 1.00120 1.22040 0.97194 0.98574 0.89885 1.21735 1.01872 1.00229 0.92426 1.21325 0.95922 0.98741 0.84230 1.46031 1.43192 1.41787 1.07399 1.20261 0.83138 0.82642 0.83563 1.90717 1.33848 1.29722 1.84869 1.22660 0.94707 0.98826 0.90839 0.90876 1.22247 0.93345 1.01832 0.97718 1.22291 0.97263 1.02435 0.94131 1.23173 0.90734 1.00013 0.95709 1.65067 1.07007 1.48902 1.00504 1.22540 0.94606 0.93654 1.02607 1.21916 0.98128 0.98471 0.90485 1.19739 0.86383 0.86875 0.83898 1.90473 1.39657 1.30492 1.85627 1.41868 1.41991 1.31503 1.04829 1.19689 1.24316 1.14979 0.83829 0.87943 1.25248 0.97113 0.96428 0.99151 1.69609 1.35503 1.24487 1.24746 0.85869 0.78683 0.79481 0.80307 1.20422 1.20977 1.19470 0.92359 0.92304 0.93055 0.91570 0.87827 0.94181 0.90798 0.90256 0.91256 0.91672 0.91330 0.76628 0.90304 0.90240 0.90518 0.90810 0.89534 0.93559 0.91028 0.90742 0.95337 0.89525 0.92992 0.77525 0.91908 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 -0.19 -2.61 9.28 37.16 0.34 -2.26 16 2 C 0.04 0.68 5.57 -3.82 -0.02 0.65 16 3 N -0.51 -8.11 4.41 -236.06 -1.04 -9.15 16 4 C 0.05 0.62 4.83 -3.82 -0.02 0.60 16 5 C -0.12 -1.22 5.37 -26.73 -0.14 -1.37 16 6 C 0.12 1.17 5.67 -4.03 -0.02 1.14 16 7 N -0.73 -6.24 5.56 -60.29 -0.33 -6.57 16 8 C 0.52 5.49 6.72 -10.98 -0.07 5.42 16 9 O -0.52 -7.74 16.56 5.56 0.09 -7.65 16 10 C 0.04 0.33 2.68 -67.22 -0.18 0.15 16 11 H 0.07 0.45 7.97 -51.93 -0.41 0.03 16 12 C -0.11 -0.72 6.54 -25.35 -0.17 -0.88 16 13 C -0.12 -0.67 7.00 -25.35 -0.18 -0.85 16 14 C 0.03 0.20 6.49 -2.19 -0.01 0.18 16 15 N -0.49 -4.35 4.92 -231.74 -1.14 -5.49 16 16 C 0.01 0.11 9.44 60.06 0.57 0.68 16 17 C 0.04 0.72 5.22 -4.98 -0.03 0.70 16 18 C 0.45 10.37 7.50 -10.99 -0.08 10.29 16 19 O -0.58 -15.28 13.89 5.54 0.08 -15.20 16 20 N -0.57 -14.23 5.29 -10.97 -0.06 -14.29 16 21 C -0.30 -8.28 9.68 -14.94 -0.14 -8.42 16 22 H 0.10 2.97 7.16 -52.49 -0.38 2.60 16 23 C 0.02 0.59 5.50 -17.47 -0.10 0.49 16 24 N -0.90 -24.50 13.05 55.50 0.72 -23.78 16 25 Si 0.93 21.00 29.55 -169.99 -5.02 15.98 16 26 H -0.28 -6.23 7.11 56.52 0.40 -5.83 16 27 H -0.28 -6.29 7.11 56.52 0.40 -5.89 16 28 H -0.27 -6.08 7.11 56.52 0.40 -5.68 16 29 H 0.06 0.72 8.14 -51.93 -0.42 0.30 16 30 H 0.06 0.87 6.24 -51.93 -0.32 0.55 16 31 H 0.05 0.61 6.29 -51.93 -0.33 0.28 16 32 H 0.07 0.89 6.60 -51.93 -0.34 0.55 16 33 H 0.10 2.01 5.86 -51.93 -0.30 1.70 16 34 H 0.04 0.46 5.89 -51.93 -0.31 0.15 16 35 H 0.07 0.85 7.81 -51.93 -0.41 0.45 16 36 H 0.08 0.83 8.14 -51.93 -0.42 0.40 16 37 H 0.07 0.66 6.71 -51.93 -0.35 0.32 16 38 H 0.06 0.67 8.14 -51.93 -0.42 0.25 16 39 H 0.07 0.72 8.14 -51.93 -0.42 0.30 16 40 H 0.40 2.41 8.47 -40.82 -0.35 2.07 16 41 H 0.08 0.61 7.85 -51.93 -0.41 0.20 16 42 H 0.08 0.35 8.14 -51.93 -0.42 -0.07 16 43 H 0.08 0.44 8.14 -51.92 -0.42 0.01 16 44 H 0.07 0.28 8.14 -51.93 -0.42 -0.14 16 45 H 0.09 0.50 8.14 -51.93 -0.42 0.08 16 46 H 0.05 0.24 7.90 -51.93 -0.41 -0.17 16 47 H 0.07 0.65 7.96 -51.92 -0.41 0.23 16 48 H 0.07 0.50 8.14 -51.93 -0.42 0.08 16 49 H 0.03 0.17 7.97 -51.93 -0.41 -0.24 16 50 H 0.09 1.40 7.86 -51.93 -0.41 0.99 16 51 H 0.05 0.85 6.02 -51.93 -0.31 0.54 16 52 H 0.39 9.47 7.90 -40.82 -0.32 9.15 16 53 H 0.27 6.98 8.31 -40.82 -0.34 6.64 16 LS Contribution 416.11 15.07 6.27 6.27 Total: -1.00 -33.71 416.11 -9.81 -43.51 By element: Atomic # 1 Polarization: 18.97 SS G_CDS: -9.12 Total: 9.85 kcal Atomic # 6 Polarization: 6.78 SS G_CDS: -0.25 Total: 6.52 kcal Atomic # 7 Polarization: -57.43 SS G_CDS: -1.85 Total: -59.28 kcal Atomic # 8 Polarization: -23.02 SS G_CDS: 0.17 Total: -22.85 kcal Atomic # 14 Polarization: 21.00 SS G_CDS: -5.02 Total: 15.98 kcal Total LS contribution 6.27 Total: 6.27 kcal Total: -33.71 -9.81 -43.51 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. ZINC001713009352.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 -16.431 kcal (2) G-P(sol) polarization free energy of solvation -33.706 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -50.137 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.809 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -43.515 kcal (6) G-S(sol) free energy of system = (1) + (5) -59.946 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.75 seconds