Wall clock time and date at job start Tue Mar 9 2021 13:36:28 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= 0 * 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 1.42905 * 1 3 3 C 1.35661 * 117.00430 * 2 1 4 4 C 1.38400 * 120.11608 * 0.02562 * 3 2 1 5 5 C 1.38724 * 120.03181 * 180.02562 * 4 3 2 6 6 O 1.35719 * 119.86712 * 179.97438 * 5 4 3 7 7 C 1.42897 * 116.99383 * 359.97438 * 6 5 4 8 8 C 1.39143 * 120.27313 * 359.97438 * 5 4 3 9 9 C 1.50704 * 119.88311 * 179.97438 * 8 5 4 10 10 O 1.42896 * 109.46765 * 75.00333 * 9 8 5 11 11 Si 1.86297 * 109.47017 * 195.00166 * 9 8 5 12 12 C 1.37596 * 120.23837 * 359.67870 * 8 5 4 13 13 C 1.39815 * 119.96285 * 0.62243 * 12 8 5 14 14 C 1.47296 * 120.13676 * 179.67820 * 13 12 8 15 15 O 1.21620 * 120.00142 * 179.73239 * 14 13 12 16 16 N 1.34777 * 119.99792 * 359.71534 * 14 13 12 17 17 C 1.46502 * 119.99738 * 180.02562 * 16 14 13 18 18 C 1.50701 * 112.84818 * 50.34117 * 17 16 14 19 19 C 1.38436 * 120.01380 * 189.66313 * 18 17 16 20 20 F 1.35106 * 120.02572 * 359.95685 * 19 18 17 21 21 C 1.38477 * 119.95193 * 179.97438 * 19 18 17 22 22 C 1.38175 * 119.97476 * 359.97438 * 21 19 18 23 23 C 1.38270 * 120.02272 * 0.02562 * 22 21 19 24 24 C 1.38218 * 120.01214 * 9.64361 * 18 17 16 25 25 C 1.53779 * 113.61797 * 279.14399 * 17 16 14 26 26 C 1.53956 * 87.01822 * 270.77183 * 25 17 16 27 27 H 1.09001 * 113.66548 * 220.06674 * 26 25 17 28 28 O 1.42902 * 113.53889 * 89.18824 * 26 25 17 29 29 C 1.53779 * 113.61395 * 181.53329 * 17 16 14 30 30 H 1.08993 * 109.46558 * 59.99887 * 1 2 3 31 31 H 1.08990 * 109.47257 * 180.02562 * 1 2 3 32 32 H 1.09000 * 109.47044 * 300.00319 * 1 2 3 33 33 H 1.08003 * 119.98590 * 359.97438 * 4 3 2 34 34 H 1.09000 * 109.47445 * 60.00452 * 7 6 5 35 35 H 1.09006 * 109.46725 * 179.97438 * 7 6 5 36 36 H 1.08995 * 109.47348 * 299.99602 * 7 6 5 37 37 H 1.08998 * 109.46843 * 315.00642 * 9 8 5 38 38 H 0.96701 * 114.00092 * 179.97438 * 10 9 8 39 39 H 1.48496 * 110.00318 * 300.00105 * 11 9 8 40 40 H 1.48499 * 110.00187 * 61.32119 * 11 9 8 41 41 H 1.07994 * 120.01596 * 180.29630 * 12 8 5 42 42 H 0.96994 * 120.00190 * 0.02562 * 16 14 13 43 43 H 1.08001 * 120.02037 * 179.97438 * 21 19 18 44 44 H 1.07999 * 119.99463 * 179.72577 * 22 21 19 45 45 H 1.08003 * 119.97471 * 179.97438 * 23 22 21 46 46 H 1.08000 * 119.98639 * 0.02562 * 24 18 17 47 47 H 1.09003 * 113.61170 * 25.34802 * 25 17 16 48 48 H 1.09003 * 113.61356 * 156.25177 * 25 17 16 49 49 H 0.96708 * 113.99378 * 82.50164 * 28 26 25 50 50 H 1.09003 * 113.62073 * 203.75101 * 29 17 16 51 51 H 1.09003 * 113.61433 * 334.65756 * 29 17 16 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 1.4291 0.0000 0.0000 3 6 2.0450 1.2087 0.0000 4 6 1.2937 2.3710 0.0005 5 6 1.9254 3.6061 0.0000 6 8 1.1853 4.7437 0.0000 7 6 -0.2357 4.5931 0.0000 8 6 3.3147 3.6834 -0.0005 9 6 3.9918 5.0297 -0.0017 10 8 3.8948 5.6127 1.2993 11 14 5.7863 4.8219 -0.4568 12 6 4.0726 2.5350 0.0061 13 6 3.4463 1.2850 0.0003 14 6 4.2539 0.0532 0.0002 15 8 3.7066 -1.0329 0.0001 16 7 5.5995 0.1296 0.0000 17 6 6.4028 -1.0955 -0.0006 18 6 5.9822 -2.0704 -1.0701 19 6 6.5015 -3.3537 -1.0803 20 9 7.3863 -3.7325 -0.1321 21 6 6.1138 -4.2487 -2.0632 22 6 5.2087 -3.8602 -3.0324 23 6 4.6907 -2.5783 -3.0212 24 6 5.0775 -1.6839 -2.0409 25 6 6.5536 -1.7340 1.3902 26 6 7.8036 -0.8535 1.5703 27 1 8.6303 -1.3633 2.0651 28 8 7.5221 0.4282 2.1360 29 6 7.9185 -0.8384 0.0369 30 1 -0.3632 0.5138 -0.8899 31 1 -0.3633 -1.0276 0.0005 32 1 -0.3633 0.5139 0.8900 33 1 0.2150 2.3165 0.0005 34 1 -0.5429 4.0439 0.8900 35 1 -0.7053 5.5768 0.0005 36 1 -0.5428 4.0439 -0.8900 37 1 3.5055 5.6803 -0.7286 38 1 4.3106 6.4827 1.3725 39 1 6.4606 3.9369 0.5266 40 1 5.9010 4.2458 -1.8207 41 1 5.1506 2.5992 0.0105 42 1 6.0361 0.9958 0.0002 43 1 6.5185 -5.2499 -2.0725 44 1 4.9094 -4.5566 -3.8018 45 1 3.9836 -2.2754 -3.7793 46 1 4.6724 -0.6828 -2.0332 47 1 5.7420 -1.4868 2.0745 48 1 6.7722 -2.8015 1.3592 49 1 7.4487 0.4250 3.1003 50 1 8.5110 -1.6604 -0.3647 51 1 8.2071 0.1309 -0.3698 There are 74 doubly filled levels RHF calculation, no. of doubly occupied orbitals= 74 No. of singly occupied orbitals= 1 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=0 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 s_22_17639084_12297780.mol2 51 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Tue Mar 9 2021 13:36:28 Heat of formation + Delta-G solvation = -111.429202 kcal Electronic energy + Delta-G solvation = -41015.724340 eV Core-core repulsion = 35764.757244 eV Total energy + Delta-G solvation = -5250.967096 eV No. of doubly occupied orbitals = 74 and no. of open levels = 1 Molecular weight (most abundant/longest-lived isotopes) = 404.156 amu Computer time = 1.31 seconds Orbital eigenvalues (eV) -49.93221 -42.24156 -41.56873 -40.12080 -39.28485 -39.21319 -38.28207 -36.98999 -36.16626 -33.90420 -32.32666 -32.03705 -31.34731 -31.18466 -29.07999 -28.27724 -26.93907 -26.11731 -25.90113 -24.53872 -23.55100 -22.98441 -22.42808 -21.37645 -20.49600 -19.96466 -18.83629 -18.44033 -18.37243 -18.25991 -17.96744 -17.45660 -17.13967 -17.06562 -16.86330 -16.61454 -16.55853 -16.38812 -16.30853 -15.79834 -15.74669 -15.59968 -15.29296 -15.19750 -15.05905 -14.59266 -14.23151 -14.20589 -14.12661 -13.88184 -13.76089 -13.67169 -13.56097 -13.40446 -13.34464 -12.84375 -12.83111 -12.61779 -12.53242 -12.39071 -12.24266 -12.12148 -11.89359 -11.79905 -11.64634 -11.55440 -10.84756 -10.64636 -10.23030 -10.01182 -9.89849 -9.64160 -9.42567 -9.11313 -5.00899 -0.18809 0.12693 0.30111 0.42475 1.27627 1.61561 1.86279 1.92830 2.05133 2.07780 2.14967 2.66368 2.74760 3.01377 3.35180 3.39635 3.43581 3.51183 3.56950 3.65578 3.69526 3.79923 3.83916 3.92353 3.97285 4.00430 4.05690 4.09373 4.13234 4.14699 4.15570 4.23673 4.32556 4.42343 4.44128 4.48328 4.52819 4.54249 4.67649 4.68933 4.80493 4.89772 4.92055 4.98999 4.99817 5.06509 5.08027 5.19718 5.23120 5.30547 5.46568 5.59716 5.72586 6.00695 6.04482 6.29459 6.59233 6.66447 6.71272 7.41216 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.019 3.981 2 O -0.273 6.273 3 C 0.235 3.765 4 C -0.314 4.314 5 C 0.224 3.776 6 O -0.295 6.295 7 C 0.021 3.979 8 C -0.152 4.152 9 C -0.053 4.053 10 O -0.543 6.543 11 Si 0.670 3.330 12 C -0.011 4.011 13 C -0.209 4.209 14 C 0.563 3.437 15 O -0.503 6.503 16 N -0.704 5.704 17 C 0.203 3.797 18 C -0.102 4.102 19 C 0.103 3.897 20 F -0.135 7.135 21 C -0.154 4.154 22 C -0.091 4.091 23 C -0.129 4.129 24 C -0.054 4.054 25 C -0.184 4.184 26 C 0.083 3.917 27 H 0.077 0.923 28 O -0.551 6.551 29 C -0.127 4.127 30 H 0.057 0.943 31 H 0.107 0.893 32 H 0.057 0.943 33 H 0.146 0.854 34 H 0.059 0.941 35 H 0.107 0.893 36 H 0.059 0.941 37 H 0.074 0.926 38 H 0.380 0.620 39 H -0.243 1.243 40 H -0.251 1.251 41 H 0.136 0.864 42 H 0.402 0.598 43 H 0.136 0.864 44 H 0.132 0.868 45 H 0.126 0.874 46 H 0.122 0.878 47 H 0.079 0.921 48 H 0.117 0.883 49 H 0.384 0.616 50 H 0.113 0.887 51 H 0.085 0.915 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -0.909 4.779 -1.517 5.096 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 -0.076 4.076 2 O -0.183 6.183 3 C 0.185 3.815 4 C -0.333 4.333 5 C 0.177 3.823 6 O -0.206 6.206 7 C -0.074 4.074 8 C -0.153 4.153 9 C -0.164 4.164 10 O -0.349 6.349 11 Si 0.571 3.429 12 C -0.030 4.030 13 C -0.213 4.213 14 C 0.352 3.648 15 O -0.378 6.378 16 N -0.357 5.357 17 C 0.116 3.884 18 C -0.104 4.104 19 C 0.083 3.917 20 F -0.114 7.114 21 C -0.173 4.173 22 C -0.109 4.109 23 C -0.147 4.147 24 C -0.073 4.073 25 C -0.222 4.222 26 C 0.023 3.977 27 H 0.095 0.905 28 O -0.357 6.357 29 C -0.165 4.165 30 H 0.076 0.924 31 H 0.125 0.875 32 H 0.076 0.924 33 H 0.164 0.836 34 H 0.078 0.922 35 H 0.126 0.874 36 H 0.077 0.923 37 H 0.092 0.908 38 H 0.227 0.773 39 H -0.168 1.168 40 H -0.175 1.175 41 H 0.153 0.847 42 H 0.239 0.761 43 H 0.154 0.846 44 H 0.150 0.850 45 H 0.144 0.856 46 H 0.140 0.860 47 H 0.098 0.902 48 H 0.134 0.866 49 H 0.233 0.767 50 H 0.131 0.869 51 H 0.104 0.896 Dipole moment (debyes) X Y Z Total from point charges -0.831 3.032 -2.211 3.844 hybrid contribution -0.961 0.064 0.787 1.244 sum -1.792 3.096 -1.424 3.851 Atomic orbital electron populations 1.23239 0.78252 1.04826 1.01331 1.86405 1.21144 1.24901 1.85800 1.18672 0.90458 0.84474 0.87856 1.21286 1.01124 0.91412 1.19527 1.18669 0.90269 0.84775 0.88633 1.86136 1.19441 1.28436 1.86609 1.23218 0.77815 1.04670 1.01652 1.18410 0.90197 0.94269 1.12411 1.24390 1.09983 0.93006 0.88989 1.86519 1.81986 1.37551 1.28822 0.95243 0.77908 0.89507 0.80252 1.20787 0.98893 0.90367 0.92907 1.19007 0.90712 0.93375 1.18238 1.17740 0.81586 0.88718 0.76803 1.90902 1.71225 1.28117 1.47554 1.45486 1.05502 1.08279 1.76435 1.19723 0.90766 0.84394 0.93510 1.19602 0.99855 0.93207 0.97705 1.17301 0.92348 0.92982 0.89059 1.91366 1.66236 1.91632 1.62147 1.21074 1.00729 0.99912 0.95604 1.21013 0.95755 0.96301 0.97871 1.21181 1.00550 0.93833 0.99126 1.20836 0.94098 0.99975 0.92345 1.24467 0.99370 1.02148 0.96213 1.22681 0.96270 0.84380 0.94333 0.90536 1.86394 1.94127 1.29029 1.26149 1.23455 0.93676 1.04111 0.95253 0.92397 0.87470 0.92398 0.83615 0.92201 0.87430 0.92278 0.90812 0.77296 1.16751 1.17547 0.84725 0.76145 0.84635 0.85035 0.85560 0.85999 0.90198 0.86552 0.76739 0.86864 0.89619 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 0.02 0.00 9.81 101.05 0.99 0.99 16 2 O -0.27 -1.18 8.56 -40.61 -0.35 -1.53 16 3 C 0.23 0.94 6.70 -38.73 -0.26 0.69 16 4 C -0.31 -0.66 8.01 -39.34 -0.31 -0.98 16 5 C 0.22 0.64 6.67 -39.07 -0.26 0.38 16 6 O -0.30 -0.55 9.80 -18.86 -0.18 -0.73 16 7 C 0.02 -0.04 9.80 101.05 0.99 0.95 16 8 C -0.15 -0.46 5.30 -104.52 -0.55 -1.02 16 9 C -0.05 -0.04 2.36 36.01 0.08 0.04 16 10 O -0.54 -0.57 12.86 -35.23 -0.45 -1.02 16 11 Si 0.67 -0.58 30.20 -169.99 -5.13 -5.71 16 12 C -0.01 -0.04 8.14 -39.23 -0.32 -0.35 16 13 C -0.21 -0.93 5.89 -104.84 -0.62 -1.54 16 14 C 0.56 2.97 5.69 -12.58 -0.07 2.90 16 15 O -0.50 -3.97 12.53 -16.66 -0.21 -4.17 16 16 N -0.70 -2.38 4.31 -49.03 -0.21 -2.59 16 17 C 0.20 0.64 1.03 -132.16 -0.14 0.50 16 18 C -0.10 -0.42 4.57 -104.56 -0.48 -0.90 16 19 C 0.10 0.38 6.71 -39.42 -0.26 0.11 16 20 F -0.14 -0.43 12.93 2.25 0.03 -0.40 16 21 C -0.15 -0.39 10.03 -39.52 -0.40 -0.78 16 22 C -0.09 -0.18 10.04 -39.59 -0.40 -0.58 16 23 C -0.13 -0.37 10.04 -39.57 -0.40 -0.77 16 24 C -0.05 -0.23 7.48 -39.59 -0.30 -0.53 16 25 C -0.18 -0.51 6.92 -25.83 -0.18 -0.69 16 26 C 0.08 0.08 5.28 -25.83 -0.14 -0.06 16 27 H 0.08 -0.04 8.14 -51.93 -0.42 -0.46 16 28 O -0.55 -0.59 12.96 -35.23 -0.46 -1.05 16 29 C -0.13 -0.16 6.88 -25.92 -0.18 -0.34 16 30 H 0.06 -0.10 7.66 -51.93 -0.40 -0.50 16 31 H 0.11 -0.13 8.14 -51.93 -0.42 -0.56 16 32 H 0.06 -0.08 7.66 -51.93 -0.40 -0.48 16 33 H 0.15 -0.08 4.50 -52.48 -0.24 -0.31 16 34 H 0.06 -0.14 7.65 -51.93 -0.40 -0.54 16 35 H 0.11 -0.38 8.14 -51.93 -0.42 -0.80 16 36 H 0.06 -0.17 7.65 -51.93 -0.40 -0.57 16 37 H 0.07 -0.01 7.82 -51.93 -0.41 -0.42 16 38 H 0.38 -1.51 8.74 45.56 0.40 -1.12 16 39 H -0.24 -0.37 6.73 56.52 0.38 0.02 16 40 H -0.25 -0.33 7.11 56.52 0.40 0.08 16 41 H 0.14 0.28 3.21 -52.49 -0.17 0.11 16 42 H 0.40 0.93 6.49 -40.82 -0.27 0.66 16 43 H 0.14 0.08 8.06 -52.49 -0.42 -0.34 16 44 H 0.13 -0.06 8.06 -52.49 -0.42 -0.49 16 45 H 0.13 0.14 8.06 -52.48 -0.42 -0.28 16 46 H 0.12 0.57 5.64 -52.49 -0.30 0.27 16 47 H 0.08 0.34 8.14 -51.93 -0.42 -0.08 16 48 H 0.12 0.34 5.22 -51.93 -0.27 0.07 16 49 H 0.38 -0.86 9.12 45.56 0.42 -0.45 16 50 H 0.11 0.07 6.93 -51.93 -0.36 -0.29 16 51 H 0.09 0.07 8.11 -51.93 -0.42 -0.35 16 LS Contribution 408.48 15.07 6.16 6.16 Total: 0.00 -10.49 408.48 -9.38 -19.86 By element: Atomic # 1 Polarization: -1.44 SS G_CDS: -5.38 Total: -6.82 kcal Atomic # 6 Polarization: 1.21 SS G_CDS: -3.19 Total: -1.98 kcal Atomic # 7 Polarization: -2.38 SS G_CDS: -0.21 Total: -2.59 kcal Atomic # 8 Polarization: -6.86 SS G_CDS: -1.65 Total: -8.51 kcal Atomic # 9 Polarization: -0.43 SS G_CDS: 0.03 Total: -0.40 kcal Atomic # 14 Polarization: -0.58 SS G_CDS: -5.13 Total: -5.71 kcal Total LS contribution 6.16 Total: 6.16 kcal Total: -10.49 -9.38 -19.86 kcal The number of atoms in the molecule is 51 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. s_22_17639084_12297780.mol2 51 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 -91.564 kcal (2) G-P(sol) polarization free energy of solvation -10.487 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -102.051 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.378 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -19.865 kcal (6) G-S(sol) free energy of system = (1) + (5) -111.429 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.31 seconds