Wall clock time and date at job start Thu Mar 4 2021 13:29:31 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 C 1.50699 * 1 3 3 C 1.34849 * 125.90205 * 2 1 4 4 C 1.40933 * 107.46844 * 180.28173 * 3 2 1 5 5 C 1.50701 * 126.26401 * 179.75775 * 4 3 2 6 6 O 1.42905 * 109.46965 * 104.97611 * 5 4 3 7 7 Si 1.86293 * 109.47351 * 344.97680 * 5 4 3 8 8 H 1.48501 * 109.47230 * 59.99879 * 7 5 4 9 9 H 1.48507 * 109.47160 * 179.97438 * 7 5 4 10 10 H 1.48501 * 109.47093 * 299.99759 * 7 5 4 11 11 C 1.34850 * 107.46928 * 359.73574 * 4 3 2 12 12 C 1.50700 * 125.89936 * 179.97438 * 11 4 3 13 13 N 1.36561 * 108.19844 * 0.02562 * 11 4 3 14 14 C 1.40229 * 125.66536 * 180.02562 * 13 11 4 15 15 C 1.38901 * 119.99525 * 64.99780 * 14 13 11 16 16 C 1.38271 * 120.22750 * 179.97438 * 15 14 13 17 17 C 1.37972 * 120.21672 * 0.02562 * 16 15 14 18 18 C 1.39614 * 119.98642 * 359.97438 * 17 16 15 19 19 C 1.47855 * 120.11592 * 180.02562 * 18 17 16 20 20 O 1.21548 * 120.00075 * 317.92575 * 19 18 17 21 21 N 1.34778 * 120.00303 * 137.92188 * 19 18 17 22 22 C 1.46341 * 120.53087 * 354.56523 * 21 19 18 23 23 C 1.52505 * 111.69125 * 109.08063 * 22 21 19 24 24 C 1.53649 * 110.12182 * 71.26622 * 23 22 21 25 25 Si 1.87458 * 107.32625 * 299.66242 * 24 23 22 26 26 C 1.86301 * 110.01474 * 287.41350 * 25 24 23 27 27 C 1.86298 * 110.01402 * 165.98222 * 25 24 23 28 28 C 1.47789 * 120.53641 * 174.54281 * 21 19 18 29 29 C 1.38595 * 119.99220 * 245.26723 * 14 13 11 30 30 H 1.09001 * 109.47110 * 270.16558 * 1 2 3 31 31 H 1.08997 * 109.47320 * 30.16945 * 1 2 3 32 32 H 1.09005 * 109.47255 * 150.17070 * 1 2 3 33 33 H 1.08006 * 126.26521 * 359.97438 * 3 2 1 34 34 H 1.09002 * 109.47392 * 224.97544 * 5 4 3 35 35 H 0.96694 * 114.00178 * 300.00141 * 6 5 4 36 36 H 1.08994 * 109.47703 * 270.03107 * 12 11 4 37 37 H 1.09006 * 109.47007 * 30.03620 * 12 11 4 38 38 H 1.09002 * 109.46815 * 150.02963 * 12 11 4 39 39 H 1.08004 * 119.88831 * 0.02562 * 15 14 13 40 40 H 1.07998 * 119.89333 * 179.97438 * 16 15 14 41 41 H 1.07995 * 120.00845 * 180.02562 * 17 16 15 42 42 H 1.09000 * 109.04166 * 229.65027 * 22 21 19 43 43 H 1.08999 * 109.03727 * 348.51655 * 22 21 19 44 44 H 1.09004 * 109.36699 * 191.46776 * 23 22 21 45 45 H 1.09001 * 109.36566 * 311.07289 * 23 22 21 46 46 H 1.09003 * 109.88745 * 180.20545 * 24 23 22 47 47 H 1.09000 * 109.88274 * 59.12122 * 24 23 22 48 48 H 1.08995 * 109.47037 * 177.20674 * 26 25 24 49 49 H 1.08998 * 109.46924 * 297.20969 * 26 25 24 50 50 H 1.09003 * 109.47193 * 57.20779 * 26 25 24 51 51 H 1.09002 * 109.46856 * 302.78640 * 27 25 24 52 52 H 1.08999 * 109.47349 * 62.79563 * 27 25 24 53 53 H 1.09004 * 109.46701 * 182.79321 * 27 25 24 54 54 H 1.08993 * 110.08115 * 115.56711 * 28 21 19 55 55 H 1.09003 * 110.17248 * 354.00509 * 28 21 19 56 56 H 1.08000 * 120.10686 * 0.02562 * 29 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 1.5070 0.0000 0.0000 3 6 2.2977 1.0923 0.0000 4 6 3.6348 0.6467 -0.0066 5 6 4.8646 1.5176 -0.0141 6 8 5.4615 1.5102 1.2843 7 14 4.3887 3.2604 -0.4688 8 1 3.4177 3.7837 0.5253 9 1 5.6006 4.1187 -0.4756 10 1 3.7685 3.2681 -1.8181 11 6 3.6121 -0.7016 -0.0045 12 6 4.8178 -1.6057 -0.0102 13 7 2.3078 -1.1062 0.0026 14 6 1.8645 -2.4366 0.0074 15 6 2.1326 -3.2540 1.0979 16 6 1.6973 -4.5664 1.1078 17 6 0.9941 -5.0729 0.0343 18 6 0.7196 -4.2592 -1.0665 19 6 -0.0343 -4.7988 -2.2183 20 8 0.2072 -5.9154 -2.6334 21 7 -0.9894 -4.0527 -2.8080 22 6 -1.3723 -2.7565 -2.2468 23 6 -0.8969 -1.6011 -3.1214 24 6 -1.7181 -1.5475 -4.4188 25 14 -1.4576 -3.1749 -5.3121 26 6 0.2588 -3.2385 -6.0338 27 6 -2.7265 -3.3717 -6.6618 28 6 -1.6664 -4.5301 -4.0318 29 6 1.1637 -2.9372 -1.0785 30 1 -0.3633 0.0030 1.0277 31 1 -0.3634 0.8884 -0.5164 32 1 -0.3634 -0.8915 -0.5112 33 1 1.9670 2.1205 -0.0004 34 1 5.5774 1.1335 -0.7439 35 1 4.8826 1.8399 1.9851 36 1 5.1028 -1.8248 -1.0392 37 1 5.6452 -1.1111 0.4986 38 1 4.5774 -2.5352 0.5060 39 1 2.6823 -2.8630 1.9414 40 1 1.9091 -5.1973 1.9584 41 1 0.6553 -6.0982 0.0458 42 1 -2.4579 -2.7133 -2.1600 43 1 -0.9332 -2.6551 -1.2543 44 1 -1.0173 -0.6635 -2.5785 45 1 0.1560 -1.7422 -3.3658 46 1 -1.3729 -0.7229 -5.0425 47 1 -2.7746 -1.4186 -4.1838 48 1 0.4179 -4.2070 -6.5078 49 1 0.3704 -2.4480 -6.7759 50 1 0.9922 -3.0977 -5.2398 51 1 -3.7264 -3.3084 -6.2324 52 1 -2.5973 -2.5805 -7.4002 53 1 -2.5983 -4.3417 -7.1423 54 1 -2.7249 -4.6971 -3.8330 55 1 -1.2020 -5.4515 -4.3832 56 1 0.9585 -2.3043 -1.9293 RHF calculation, no. of doubly occupied orbitals= 70 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 m_22_15766672_12335854.mol2 56 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Thu Mar 4 2021 13:29:31 Heat of formation + Delta-G solvation = -16.641336 kcal Electronic energy + Delta-G solvation = -35510.352168 eV Core-core repulsion = 31316.051823 eV Total energy + Delta-G solvation = -4194.300345 eV No. of doubly occupied orbitals = 70 Molecular weight (most abundant/longest-lived isotopes) = 386.194 amu Computer time = 1.45 seconds Orbital eigenvalues (eV) -42.93203 -41.52782 -39.48102 -37.73548 -37.62336 -34.32814 -33.77134 -33.39903 -32.63112 -30.45861 -30.12371 -29.43046 -28.46174 -28.01019 -27.20378 -26.92281 -24.75662 -24.35067 -23.66472 -22.83580 -21.22131 -20.80258 -19.73064 -18.63850 -17.96179 -17.52886 -17.46989 -17.08426 -16.93673 -16.35118 -15.95827 -15.75062 -15.71925 -15.21804 -14.94699 -14.88484 -14.69250 -14.59540 -14.41839 -14.24063 -14.20250 -14.13112 -13.94309 -13.93435 -13.60663 -13.53082 -13.42983 -13.26476 -13.22087 -13.14394 -13.12778 -13.03503 -12.91264 -12.67010 -12.54785 -12.21377 -12.12024 -12.08503 -11.96561 -11.62662 -11.58979 -11.14929 -10.86434 -10.43423 -10.40313 -10.23954 -10.19041 -9.53396 -9.38018 -8.80571 -0.37367 -0.09568 1.09038 1.31429 1.41519 1.54179 1.60814 1.60941 1.70541 1.78862 1.82906 1.83647 2.02059 2.09446 2.41670 2.52111 3.22714 3.58338 3.70016 3.74269 3.83647 3.86946 3.92414 4.00843 4.02610 4.12196 4.15267 4.32377 4.37201 4.38943 4.47353 4.47844 4.54643 4.63230 4.64818 4.66343 4.68184 4.71050 4.74121 4.75253 4.79876 4.81173 4.83595 4.93414 4.94424 4.96232 5.04321 5.06866 5.08218 5.15626 5.17230 5.23893 5.33550 5.38577 5.43593 5.49164 5.53319 5.60718 5.99946 6.15878 6.17398 6.47597 6.82790 6.93036 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.093 4.093 2 C 0.024 3.976 3 C -0.207 4.207 4 C -0.204 4.204 5 C -0.045 4.045 6 O -0.556 6.556 7 Si 0.994 3.006 8 H -0.253 1.253 9 H -0.281 1.281 10 H -0.266 1.266 11 C 0.040 3.960 12 C -0.088 4.088 13 N -0.404 5.404 14 C 0.106 3.894 15 C -0.088 4.088 16 C -0.098 4.098 17 C -0.069 4.069 18 C -0.126 4.126 19 C 0.548 3.452 20 O -0.578 6.578 21 N -0.584 5.584 22 C 0.081 3.919 23 C -0.134 4.134 24 C -0.399 4.399 25 Si 1.061 2.939 26 C -0.467 4.467 27 C -0.452 4.452 28 C -0.205 4.205 29 C -0.087 4.087 30 H 0.078 0.922 31 H 0.099 0.901 32 H 0.072 0.928 33 H 0.149 0.851 34 H 0.109 0.891 35 H 0.385 0.615 36 H 0.071 0.929 37 H 0.089 0.911 38 H 0.067 0.933 39 H 0.144 0.856 40 H 0.166 0.834 41 H 0.137 0.863 42 H 0.101 0.899 43 H 0.091 0.909 44 H 0.099 0.901 45 H 0.057 0.943 46 H 0.089 0.911 47 H 0.098 0.902 48 H 0.060 0.940 49 H 0.077 0.923 50 H 0.052 0.948 51 H 0.080 0.920 52 H 0.077 0.923 53 H 0.066 0.934 54 H 0.090 0.910 55 H 0.078 0.922 56 H 0.148 0.852 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -4.921 3.663 1.180 6.247 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 -0.150 4.150 2 C -0.084 4.084 3 C -0.231 4.231 4 C -0.211 4.211 5 C -0.156 4.156 6 O -0.363 6.363 7 Si 0.819 3.181 8 H -0.176 1.176 9 H -0.206 1.206 10 H -0.190 1.190 11 C -0.069 4.069 12 C -0.145 4.145 13 N -0.079 5.079 14 C 0.017 3.983 15 C -0.107 4.107 16 C -0.117 4.117 17 C -0.087 4.087 18 C -0.130 4.130 19 C 0.337 3.663 20 O -0.459 6.459 21 N -0.314 5.314 22 C -0.041 4.041 23 C -0.172 4.172 24 C -0.487 4.487 25 Si 1.252 2.748 26 C -0.573 4.573 27 C -0.561 4.561 28 C -0.369 4.369 29 C -0.106 4.106 30 H 0.096 0.904 31 H 0.117 0.883 32 H 0.090 0.910 33 H 0.166 0.834 34 H 0.127 0.873 35 H 0.234 0.766 36 H 0.090 0.910 37 H 0.108 0.892 38 H 0.085 0.915 39 H 0.162 0.838 40 H 0.184 0.816 41 H 0.155 0.845 42 H 0.119 0.881 43 H 0.109 0.891 44 H 0.117 0.883 45 H 0.076 0.924 46 H 0.107 0.893 47 H 0.116 0.884 48 H 0.079 0.921 49 H 0.096 0.904 50 H 0.071 0.929 51 H 0.099 0.901 52 H 0.096 0.904 53 H 0.086 0.914 54 H 0.108 0.892 55 H 0.096 0.904 56 H 0.165 0.835 Dipole moment (debyes) X Y Z Total from point charges -4.650 3.348 0.422 5.745 hybrid contribution -0.009 -0.709 0.303 0.771 sum -4.659 2.639 0.725 5.403 Atomic orbital electron populations 1.20587 0.86335 1.04384 1.03699 1.20763 0.94536 0.84545 1.08582 1.20805 0.92101 0.98335 1.11863 1.19756 0.95238 0.92891 1.13173 1.24281 0.94382 1.08378 0.88528 1.86440 1.43970 1.88750 1.17150 0.85072 0.78531 0.74335 0.80143 1.17643 1.20646 1.19000 1.20484 0.84329 0.94254 1.07840 1.20399 0.93534 0.97715 1.02878 1.41463 1.05637 1.03011 1.57801 1.17579 1.01353 0.83801 0.95568 1.21590 0.98261 0.94035 0.96811 1.21321 0.96481 0.94812 0.99044 1.21488 0.95530 0.99817 0.91905 1.19724 1.02819 0.94414 0.95998 1.18651 0.80428 0.84410 0.82820 1.90770 1.68487 1.20845 1.65763 1.47893 1.36749 1.19530 1.27243 1.22040 1.02906 0.81106 0.98017 1.21727 0.99542 0.98721 0.97241 1.26163 1.03996 1.15670 1.02857 0.78870 0.65617 0.65574 0.64753 1.26379 1.19803 1.04306 1.06777 1.26102 1.12152 1.04957 1.12860 1.27331 1.00138 1.13157 0.96320 1.21606 0.97128 0.94071 0.97823 0.90368 0.88276 0.90959 0.83359 0.87301 0.76598 0.91040 0.89204 0.91454 0.83802 0.81644 0.84469 0.88097 0.89108 0.88250 0.92434 0.89259 0.88362 0.92119 0.90358 0.92860 0.90050 0.90367 0.91439 0.89157 0.90354 0.83473 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 -0.09 0.48 10.00 71.24 0.71 1.20 16 2 C 0.02 0.02 6.81 41.04 0.28 0.30 16 3 C -0.21 -0.38 9.27 22.15 0.21 -0.18 16 4 C -0.20 -0.62 5.35 -19.98 -0.11 -0.73 16 5 C -0.04 -0.06 2.50 71.24 0.18 0.11 16 6 O -0.56 -1.22 12.88 -148.98 -1.92 -3.14 16 7 Si 0.99 0.84 26.13 68.60 1.79 2.63 16 8 H -0.25 -0.08 7.05 99.48 0.70 0.62 16 9 H -0.28 -1.17 7.11 99.48 0.71 -0.46 16 10 H -0.27 -0.71 7.11 99.48 0.71 0.00 16 11 C 0.04 0.14 6.81 41.04 0.28 0.42 16 12 C -0.09 -0.11 9.87 71.24 0.70 0.59 16 13 N -0.40 -0.81 2.79 -320.37 -0.89 -1.71 16 14 C 0.11 0.08 5.01 38.04 0.19 0.27 16 15 C -0.09 0.12 8.77 22.44 0.20 0.32 16 16 C -0.10 0.26 10.02 22.21 0.22 0.48 16 17 C -0.07 -0.10 9.65 22.54 0.22 0.12 16 18 C -0.13 -0.44 5.00 -20.10 -0.10 -0.54 16 19 C 0.55 4.20 7.30 86.79 0.63 4.84 16 20 O -0.58 -9.32 16.41 -3.87 -0.06 -9.39 16 21 N -0.58 -0.82 2.63 -629.01 -1.65 -2.47 16 22 C 0.08 -0.40 4.81 86.25 0.42 0.01 16 23 C -0.13 0.91 4.56 30.65 0.14 1.05 16 24 C -0.40 3.31 5.03 72.20 0.36 3.67 16 25 Si 1.06 -6.24 11.99 68.60 0.82 -5.42 16 26 C -0.47 0.14 8.65 113.37 0.98 1.12 16 27 C -0.45 2.54 8.65 113.37 0.98 3.52 16 28 C -0.20 0.03 5.42 127.52 0.69 0.72 16 29 C -0.09 -0.08 6.31 22.65 0.14 0.06 16 30 H 0.08 -0.45 8.14 -2.39 -0.02 -0.47 16 31 H 0.10 -0.81 8.14 -2.39 -0.02 -0.83 16 32 H 0.07 -0.48 4.31 -2.38 -0.01 -0.49 16 33 H 0.15 -0.11 6.55 -2.91 -0.02 -0.13 16 34 H 0.11 0.07 7.96 -2.39 -0.02 0.05 16 35 H 0.39 -1.40 8.70 -74.06 -0.64 -2.04 16 36 H 0.07 0.07 8.14 -2.39 -0.02 0.05 16 37 H 0.09 0.12 7.87 -2.38 -0.02 0.10 16 38 H 0.07 0.01 6.85 -2.39 -0.02 -0.01 16 39 H 0.14 -0.46 8.06 -2.91 -0.02 -0.48 16 40 H 0.17 -1.30 8.06 -2.91 -0.02 -1.32 16 41 H 0.14 0.19 8.06 -2.91 -0.02 0.17 16 42 H 0.10 -0.84 8.11 -2.39 -0.02 -0.86 16 43 H 0.09 -0.46 3.73 -2.39 -0.01 -0.47 16 44 H 0.10 -0.95 7.37 -2.38 -0.02 -0.97 16 45 H 0.06 -0.25 6.26 -2.39 -0.01 -0.26 16 46 H 0.09 -0.78 7.99 -2.39 -0.02 -0.80 16 47 H 0.10 -1.05 7.99 -2.39 -0.02 -1.07 16 48 H 0.06 0.10 7.96 -2.39 -0.02 0.08 16 49 H 0.08 -0.15 7.96 -2.39 -0.02 -0.17 16 50 H 0.05 0.13 7.96 -2.39 -0.02 0.11 16 51 H 0.08 -0.57 7.96 -2.39 -0.02 -0.58 16 52 H 0.08 -0.46 7.96 -2.39 -0.02 -0.48 16 53 H 0.07 -0.28 7.96 -2.39 -0.02 -0.30 16 54 H 0.09 -0.28 8.00 -2.39 -0.02 -0.30 16 55 H 0.08 0.40 6.94 -2.39 -0.02 0.38 16 56 H 0.15 -0.06 4.48 -2.91 -0.01 -0.08 16 Total: 0.00 -19.52 433.37 6.41 -13.11 By element: Atomic # 1 Polarization: -11.99 SS G_CDS: 1.00 Total: -10.99 kcal Atomic # 6 Polarization: 10.05 SS G_CDS: 7.33 Total: 17.37 kcal Atomic # 7 Polarization: -1.64 SS G_CDS: -2.55 Total: -4.18 kcal Atomic # 8 Polarization: -10.54 SS G_CDS: -1.98 Total: -12.52 kcal Atomic # 14 Polarization: -5.40 SS G_CDS: 2.61 Total: -2.78 kcal Total: -19.52 6.41 -13.11 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. m_22_15766672_12335854.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 -3.533 kcal (2) G-P(sol) polarization free energy of solvation -19.516 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -23.050 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy 6.408 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -13.108 kcal (6) G-S(sol) free energy of system = (1) + (5) -16.641 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.45 seconds