Wall clock time and date at job start Sun Mar 7 2021 10:12:32 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 * SM5.42R - SM5.42R CALCULATIONS WILL BE PERFORMED * - CHARGE MODEL 2 WILL BE USED (CM2A) * - THE SOLVENT IS WATER ******************************************************************************* 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 Si 1.86302 * 1 3 3 C 1.86296 * 111.29248 * 2 1 4 4 C 1.89522 * 111.50035 * 234.84343 * 2 1 3 5 5 C 1.55142 * 101.35640 * 245.87503 * 4 2 1 6 6 C 1.53579 * 111.29168 * 331.41615 * 5 4 2 7 7 C 1.52995 * 109.47126 * 169.06332 * 6 5 4 8 8 N 1.46499 * 109.47347 * 64.95551 * 7 6 5 9 9 C 1.34772 * 120.00390 * 179.97438 * 8 7 6 10 10 O 1.21616 * 119.99992 * 0.02562 * 9 8 7 11 11 C 1.47376 * 120.00598 * 180.02562 * 9 8 7 12 12 C 1.36412 * 127.19819 * 180.02562 * 11 9 8 13 13 C 1.50704 * 125.80054 * 359.97438 * 12 11 9 14 14 O 1.42894 * 109.46971 * 90.00155 * 13 12 11 15 15 C 1.35902 * 117.00054 * 180.02562 * 14 13 12 16 16 C 1.38738 * 120.05131 * 359.72552 * 15 14 13 17 17 C 1.38153 * 119.93745 * 179.74372 * 16 15 14 18 18 C 1.38261 * 120.05657 * 0.51353 * 17 16 15 19 19 C 1.50702 * 119.94151 * 179.74602 * 18 17 16 20 20 O 1.42901 * 109.46788 * 245.01398 * 19 18 17 21 21 Si 1.86294 * 109.47268 * 5.01603 * 19 18 17 22 22 H 1.48498 * 109.47526 * 60.00176 * 21 19 18 23 23 H 1.48506 * 109.47338 * 180.02562 * 21 19 18 24 24 H 1.48501 * 109.46989 * 300.00115 * 21 19 18 25 25 C 1.38267 * 120.11376 * 359.75926 * 18 17 16 26 26 C 1.38142 * 120.05630 * 359.97438 * 25 18 17 27 27 O 1.33650 * 108.39891 * 180.02562 * 12 11 9 28 28 C 1.34213 * 110.91234 * 359.97438 * 27 12 11 29 29 C 1.34187 * 109.11916 * 359.71181 * 28 27 12 30 30 C 1.55915 * 109.50369 * 49.04142 * 6 5 4 31 31 H 1.08996 * 109.47140 * 294.89926 * 1 2 3 32 32 H 1.09003 * 109.46829 * 54.89548 * 1 2 3 33 33 H 1.08996 * 109.47108 * 174.89587 * 1 2 3 34 34 H 1.08994 * 109.47400 * 185.10569 * 3 2 1 35 35 H 1.09005 * 109.47314 * 305.10736 * 3 2 1 36 36 H 1.09006 * 109.47297 * 65.10365 * 3 2 1 37 37 H 1.08998 * 111.03441 * 127.85278 * 4 2 1 38 38 H 1.09008 * 111.08072 * 3.91071 * 4 2 1 39 39 H 1.09003 * 109.12430 * 210.93608 * 5 4 2 40 40 H 1.09003 * 109.12868 * 91.90331 * 5 4 2 41 41 H 1.08998 * 109.47087 * 289.01591 * 6 5 4 42 42 H 1.09005 * 109.47049 * 184.95682 * 7 6 5 43 43 H 1.08998 * 109.47561 * 304.95752 * 7 6 5 44 44 H 0.96999 * 119.99704 * 0.02562 * 8 7 6 45 45 H 1.09003 * 109.47018 * 210.00423 * 13 12 11 46 46 H 1.09003 * 109.46871 * 329.99657 * 13 12 11 47 47 H 1.07992 * 120.03246 * 359.97438 * 16 15 14 48 48 H 1.07999 * 119.96858 * 180.22771 * 17 16 15 49 49 H 1.09002 * 109.47545 * 125.01850 * 19 18 17 50 50 H 0.96697 * 113.99995 * 179.97438 * 20 19 18 51 51 H 1.08001 * 119.97179 * 179.97438 * 25 18 17 52 52 H 1.07997 * 120.03254 * 179.97438 * 26 25 18 53 53 H 1.07997 * 125.44302 * 180.02562 * 28 27 12 54 54 H 1.07998 * 127.02191 * 180.27021 * 29 28 27 55 55 H 1.09002 * 111.42836 * 76.90973 * 30 6 5 56 56 H 1.09001 * 111.42626 * 201.79891 * 30 6 5 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 14 1.8630 0.0000 0.0000 3 6 2.5395 1.7358 0.0000 4 6 2.5576 -1.0154 -1.4417 5 6 3.2480 -2.1828 -0.6884 6 6 3.7201 -1.7450 0.7059 7 6 4.1423 -2.9756 1.5110 8 7 5.3118 -3.5936 0.8812 9 6 5.8623 -4.6992 1.4206 10 8 5.3879 -5.1842 2.4300 11 6 7.0391 -5.3206 0.7874 12 6 7.7088 -6.4334 1.2046 13 6 7.3721 -7.2620 2.4175 14 8 6.4544 -8.2937 2.0497 15 6 6.0457 -9.1359 3.0349 16 6 6.5227 -8.9761 4.3279 17 6 6.1016 -9.8303 5.3287 18 6 5.2139 -10.8503 5.0405 19 6 4.7607 -11.7841 6.1330 20 8 5.2301 -13.1050 5.8557 21 14 5.4496 -11.2102 7.7660 22 1 4.9618 -9.8376 8.0542 23 1 5.0035 -12.1308 8.8425 24 1 6.9333 -11.2052 7.7029 25 6 4.7414 -11.0152 3.7515 26 6 5.1551 -10.1603 2.7483 27 8 8.7150 -6.6633 0.3555 28 6 8.7406 -5.7400 -0.6182 29 6 7.7326 -4.8745 -0.4298 30 6 2.5568 -1.0151 1.4440 31 1 -0.3633 0.4327 0.9321 32 1 -0.3633 0.5910 -0.8408 33 1 -0.3633 -1.0235 -0.0914 34 1 3.6251 1.7027 -0.0914 35 1 2.1208 2.2890 -0.8407 36 1 2.2684 2.2315 0.9322 37 1 3.2819 -0.4364 -2.0148 38 1 1.7572 -1.3828 -2.0839 39 1 4.1078 -2.5218 -1.2664 40 1 2.5427 -3.0073 -0.5841 41 1 4.5687 -1.0682 0.6063 42 1 4.3936 -2.6755 2.5283 43 1 3.3218 -3.6926 1.5359 44 1 5.6904 -3.2066 0.0763 45 1 8.2825 -7.7103 2.8154 46 1 6.9182 -6.6258 3.1775 47 1 7.2197 -8.1823 4.5526 48 1 6.4698 -9.7040 6.3361 49 1 3.6716 -11.7879 6.1793 50 1 4.9753 -13.7604 6.5194 51 1 4.0483 -11.8130 3.5289 52 1 4.7861 -10.2897 1.7416 53 1 9.4550 -5.7027 -1.4273 54 1 7.4836 -4.0224 -1.0449 55 1 1.8198 -1.7228 1.8236 56 1 2.9319 -0.3711 2.2394 RHF calculation, no. of doubly occupied orbitals= 73 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=0 AM1 1SCF TLIMIT=15 GEO-OK SM5.42R & SOLVNT=WATER s_22_17310366_4549634.mol2 56 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Sun Mar 7 2021 10:12:32 Heat of formation + Delta-G solvation = -104.927330 kcal Electronic energy + Delta-G solvation = -35001.173966 eV Core-core repulsion = 30386.644398 eV Total energy + Delta-G solvation = -4614.529568 eV No. of doubly occupied orbitals = 73 Molecular weight (most abundant/longest-lived isotopes) = 403.182 amu Computer time = 1.15 seconds Orbital eigenvalues (eV) -43.74512 -41.31817 -40.66808 -39.17083 -37.88747 -37.24955 -34.86729 -33.96136 -32.91136 -32.03579 -31.49916 -30.49574 -29.10284 -28.37700 -28.20214 -26.95378 -26.09019 -24.47005 -23.92717 -23.77505 -22.33395 -22.02546 -21.27146 -20.53064 -19.55306 -19.14460 -18.44771 -17.68326 -17.28647 -17.24090 -16.94446 -16.82482 -16.68906 -16.42850 -16.00370 -15.72342 -15.70973 -15.52887 -14.91369 -14.63264 -14.57378 -14.51158 -14.47381 -14.24081 -13.89339 -13.84411 -13.82577 -13.80907 -13.66441 -13.53223 -13.43149 -13.26302 -13.12847 -13.08017 -12.53829 -12.50186 -12.27129 -12.19252 -12.12530 -11.87820 -11.84679 -11.71084 -11.39829 -11.25665 -10.99945 -10.75624 -10.39183 -10.30733 -10.29581 -10.15116 -10.09141 -9.84931 -9.26583 -0.06766 0.21871 0.25773 1.01139 1.16604 1.44554 1.48537 1.49864 1.74533 1.89893 2.01133 2.04700 2.06663 2.15274 2.44429 2.58309 2.65791 3.30937 3.49004 3.58531 3.63662 3.68555 3.80442 3.82813 3.88470 3.97884 4.02546 4.06795 4.09135 4.23832 4.38260 4.42813 4.45597 4.51044 4.56212 4.60002 4.64903 4.65594 4.77604 4.78411 4.81448 4.83463 4.84439 4.86950 4.88998 4.90462 5.11177 5.12109 5.19600 5.23116 5.23591 5.30946 5.36626 5.44619 5.52346 5.55833 5.61397 5.64670 5.65749 5.86011 6.21044 6.42469 6.84380 7.08354 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.462 4.462 2 Si 1.041 2.959 3 C -0.454 4.454 4 C -0.407 4.407 5 C -0.114 4.114 6 C -0.091 4.091 7 C 0.128 3.872 8 N -0.707 5.707 9 C 0.579 3.421 10 O -0.575 6.575 11 C -0.223 4.223 12 C 0.040 3.960 13 C 0.135 3.865 14 O -0.321 6.321 15 C 0.122 3.878 16 C -0.207 4.207 17 C -0.093 4.093 18 C -0.125 4.125 19 C -0.076 4.076 20 O -0.563 6.563 21 Si 0.974 3.026 22 H -0.262 1.262 23 H -0.251 1.251 24 H -0.270 1.270 25 C -0.053 4.053 26 C -0.160 4.160 27 O -0.177 6.177 28 C -0.010 4.010 29 C -0.197 4.197 30 C -0.406 4.406 31 H 0.068 0.932 32 H 0.069 0.931 33 H 0.066 0.934 34 H 0.072 0.928 35 H 0.069 0.931 36 H 0.068 0.932 37 H 0.082 0.918 38 H 0.076 0.924 39 H 0.066 0.934 40 H 0.054 0.946 41 H 0.094 0.906 42 H 0.060 0.940 43 H 0.055 0.945 44 H 0.414 0.586 45 H 0.099 0.901 46 H 0.106 0.894 47 H 0.145 0.855 48 H 0.134 0.866 49 H 0.096 0.904 50 H 0.398 0.602 51 H 0.150 0.850 52 H 0.139 0.861 53 H 0.254 0.746 54 H 0.192 0.808 55 H 0.076 0.924 56 H 0.084 0.916 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 0.270 4.538 -2.818 5.349 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 -0.568 4.568 2 Si 1.234 2.766 3 C -0.562 4.562 4 C -0.493 4.493 5 C -0.152 4.152 6 C -0.110 4.110 7 C 0.005 3.995 8 N -0.359 5.359 9 C 0.367 3.633 10 O -0.456 6.456 11 C -0.228 4.228 12 C -0.013 4.013 13 C 0.060 3.940 14 O -0.235 6.235 15 C 0.077 3.923 16 C -0.225 4.225 17 C -0.110 4.110 18 C -0.126 4.126 19 C -0.186 4.186 20 O -0.372 6.372 21 Si 0.798 3.202 22 H -0.186 1.186 23 H -0.175 1.175 24 H -0.195 1.195 25 C -0.071 4.071 26 C -0.179 4.179 27 O -0.073 6.073 28 C -0.076 4.076 29 C -0.216 4.216 30 C -0.491 4.491 31 H 0.087 0.913 32 H 0.088 0.912 33 H 0.085 0.915 34 H 0.092 0.908 35 H 0.089 0.911 36 H 0.088 0.912 37 H 0.101 0.899 38 H 0.094 0.906 39 H 0.085 0.915 40 H 0.073 0.927 41 H 0.112 0.888 42 H 0.078 0.922 43 H 0.073 0.927 44 H 0.252 0.748 45 H 0.117 0.883 46 H 0.124 0.876 47 H 0.162 0.838 48 H 0.151 0.849 49 H 0.114 0.886 50 H 0.248 0.752 51 H 0.167 0.833 52 H 0.157 0.843 53 H 0.270 0.730 54 H 0.209 0.791 55 H 0.095 0.905 56 H 0.103 0.897 Dipole moment (debyes) X Y Z Total from point charges 0.618 4.599 -2.010 5.056 hybrid contribution -0.119 -0.153 -0.182 0.266 sum 0.499 4.445 -2.192 4.981 Atomic orbital electron populations 1.26250 1.21844 1.04310 1.04416 0.79413 0.65348 0.65902 0.65912 1.26164 1.06890 1.18637 1.04487 1.26629 1.05748 1.06256 1.10627 1.21786 1.00611 0.98584 0.94175 1.21870 0.99628 0.95116 0.94338 1.21534 0.86607 0.94612 0.96765 1.45772 1.31765 1.27577 1.30740 1.17490 0.82253 0.80388 0.83130 1.90775 1.64095 1.64165 1.26609 1.21400 1.00379 1.00295 1.00721 1.22006 0.89552 0.96094 0.93694 1.21124 0.93641 0.88220 0.90985 1.86043 1.60807 1.41201 1.35451 1.19175 0.94965 0.90653 0.87461 1.21345 1.05398 1.03644 0.92161 1.20998 0.95939 0.94744 0.99343 1.19500 1.00104 0.97306 0.95649 1.24677 1.02997 0.85638 1.05269 1.86466 1.79407 1.17628 1.53657 0.85367 0.79591 0.80125 0.75080 1.18595 1.17488 1.19471 1.21011 0.97930 0.97202 0.90995 1.20681 1.00042 0.95705 1.01459 1.83792 1.43712 1.47678 1.32088 1.24935 1.01867 0.88326 0.92462 1.23251 0.97163 1.04108 0.97065 1.26961 1.02704 1.08145 1.11288 0.91274 0.91192 0.91488 0.90834 0.91137 0.91245 0.89909 0.90557 0.91535 0.92685 0.88794 0.92205 0.92705 0.74843 0.88347 0.87637 0.83761 0.84880 0.88608 0.75202 0.83271 0.84343 0.73036 0.79079 0.90470 0.89719 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 C -0.46 1.76 8.65 113.37 0.98 2.74 16 2 Si 1.04 -7.53 13.37 68.60 0.92 -6.62 16 3 C -0.45 2.51 8.65 113.37 0.98 3.49 16 4 C -0.41 2.21 5.85 72.72 0.43 2.64 16 5 C -0.11 0.44 5.14 31.52 0.16 0.60 16 6 C -0.09 0.34 2.21 -9.59 -0.02 0.32 16 7 C 0.13 0.23 5.06 86.38 0.44 0.67 16 8 N -0.71 -1.20 5.35 -466.43 -2.49 -3.70 16 9 C 0.58 5.00 7.81 86.65 0.68 5.67 16 10 O -0.57 -9.24 14.85 -4.08 -0.06 -9.30 16 11 C -0.22 -1.29 6.31 -18.99 -0.12 -1.41 16 12 C 0.04 0.29 7.00 25.26 0.18 0.47 16 13 C 0.13 1.04 4.74 71.24 0.34 1.38 16 14 O -0.32 -3.86 10.12 -92.45 -0.94 -4.79 16 15 C 0.12 1.31 6.69 22.51 0.15 1.46 16 16 C -0.21 -1.69 9.04 22.37 0.20 -1.49 16 17 C -0.09 -0.66 8.66 22.25 0.19 -0.47 16 18 C -0.13 -0.82 5.38 -19.85 -0.11 -0.93 16 19 C -0.08 -0.10 2.79 71.24 0.20 0.10 16 20 O -0.56 -0.98 12.81 -148.98 -1.91 -2.89 16 21 Si 0.97 0.80 25.13 68.60 1.72 2.52 16 22 H -0.26 -0.70 7.11 99.48 0.71 0.00 16 23 H -0.25 0.07 7.11 99.48 0.71 0.78 16 24 H -0.27 -1.13 7.04 99.48 0.70 -0.43 16 25 C -0.05 -0.35 9.68 22.25 0.22 -0.14 16 26 C -0.16 -1.43 9.99 22.37 0.22 -1.21 16 27 O -0.18 -0.76 10.52 4.51 0.05 -0.71 16 28 C -0.01 0.03 12.03 66.90 0.80 0.84 16 29 C -0.20 0.43 10.60 23.65 0.25 0.68 16 30 C -0.41 1.77 5.28 72.99 0.39 2.16 16 31 H 0.07 -0.24 7.96 -2.39 -0.02 -0.25 16 32 H 0.07 -0.26 7.96 -2.39 -0.02 -0.28 16 33 H 0.07 -0.19 7.96 -2.39 -0.02 -0.21 16 34 H 0.07 -0.42 7.96 -2.39 -0.02 -0.44 16 35 H 0.07 -0.36 7.96 -2.38 -0.02 -0.38 16 36 H 0.07 -0.34 7.96 -2.38 -0.02 -0.36 16 37 H 0.08 -0.53 8.04 -2.39 -0.02 -0.55 16 38 H 0.08 -0.35 8.05 -2.38 -0.02 -0.36 16 39 H 0.07 -0.34 7.46 -2.39 -0.02 -0.36 16 40 H 0.05 -0.08 8.06 -2.39 -0.02 -0.10 16 41 H 0.09 -0.60 8.14 -2.39 -0.02 -0.62 16 42 H 0.06 0.25 8.14 -2.38 -0.02 0.23 16 43 H 0.05 0.28 8.10 -2.39 -0.02 0.26 16 44 H 0.41 -1.83 6.91 -92.71 -0.64 -2.47 16 45 H 0.10 0.31 7.65 -2.39 -0.02 0.30 16 46 H 0.11 0.96 6.02 -2.39 -0.01 0.95 16 47 H 0.14 0.60 6.30 -2.91 -0.02 0.59 16 48 H 0.13 0.52 4.86 -2.91 -0.01 0.51 16 49 H 0.10 -0.29 7.96 -2.39 -0.02 -0.31 16 50 H 0.40 -3.03 8.74 -74.06 -0.65 -3.68 16 51 H 0.15 0.38 8.06 -2.91 -0.02 0.36 16 52 H 0.14 0.93 8.06 -2.91 -0.02 0.90 16 53 H 0.25 -3.16 8.06 -2.91 -0.02 -3.19 16 54 H 0.19 -1.82 7.74 -2.91 -0.02 -1.84 16 55 H 0.08 -0.22 8.03 -2.39 -0.02 -0.24 16 56 H 0.08 -0.41 8.06 -2.39 -0.02 -0.43 16 Total: 0.00 -23.72 455.17 4.21 -19.51 By element: Atomic # 1 Polarization: -11.98 SS G_CDS: 0.36 Total: -11.62 kcal Atomic # 6 Polarization: 11.04 SS G_CDS: 6.55 Total: 17.59 kcal Atomic # 7 Polarization: -1.20 SS G_CDS: -2.49 Total: -3.70 kcal Atomic # 8 Polarization: -14.84 SS G_CDS: -2.86 Total: -17.69 kcal Atomic # 14 Polarization: -6.73 SS G_CDS: 2.64 Total: -4.09 kcal Total: -23.72 4.21 -19.51 kcal The number of atoms in the molecule is 56 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_17310366_4549634.mol2 56 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 -85.419 kcal (2) G-P(sol) polarization free energy of solvation -23.716 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -109.135 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy 4.208 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -19.509 kcal (6) G-S(sol) free energy of system = (1) + (5) -104.927 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.15 seconds