Wall clock time and date at job start Tue Mar 31 2020 23:37:01 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 O 1.42904 * 1 3 3 C 1.42895 * 114.00331 * 2 1 4 4 C 1.52997 * 109.47420 * 179.97438 * 3 2 1 5 5 C 1.52994 * 109.47447 * 175.34325 * 4 3 2 6 6 N 1.46501 * 109.46167 * 305.34913 * 5 4 3 7 7 C 1.34781 * 119.99696 * 295.38228 * 6 5 4 8 8 O 1.21278 * 120.00196 * 5.19641 * 7 6 5 9 9 C 1.50701 * 120.00011 * 185.20173 * 7 6 5 10 10 H 1.09000 * 109.86800 * 304.29341 * 9 7 6 11 11 C 1.54099 * 109.87943 * 65.30226 * 9 7 6 12 12 C 1.54815 * 104.18560 * 121.45756 * 11 9 7 13 13 C 1.54994 * 102.09497 * 20.87935 * 12 11 9 14 14 H 1.09000 * 110.61818 * 81.47685 * 13 12 11 15 15 C 1.53003 * 110.62035 * 204.32167 * 13 12 11 16 16 O 1.43744 * 109.87995 * 183.29443 * 9 7 6 17 17 C 1.53036 * 109.46327 * 185.38728 * 5 4 3 18 18 C 1.53194 * 109.31581 * 178.61439 * 17 5 4 19 19 N 1.46930 * 108.77497 * 54.63020 * 18 17 5 20 20 C 1.36938 * 120.62703 * 126.36744 * 19 18 17 21 21 H 1.07994 * 120.00452 * 328.56829 * 20 19 18 22 22 C 1.38812 * 119.99807 * 148.56731 * 20 19 18 23 23 N 1.31628 * 120.00077 * 345.01834 * 22 20 19 24 24 Si 1.86806 * 120.00228 * 165.01222 * 22 20 19 25 25 H 1.48500 * 109.46617 * 89.99939 * 24 22 20 26 26 H 1.48493 * 109.47122 * 210.00374 * 24 22 20 27 27 H 1.48501 * 109.46875 * 330.00782 * 24 22 20 28 28 C 1.46923 * 118.74153 * 306.39745 * 19 18 17 29 29 C 1.53041 * 109.45845 * 65.31560 * 5 4 3 30 30 H 1.09004 * 109.47042 * 180.02562 * 1 2 3 31 31 H 1.08998 * 109.47001 * 299.99967 * 1 2 3 32 32 H 1.09000 * 109.47144 * 59.99859 * 1 2 3 33 33 H 1.09004 * 109.46933 * 59.99752 * 3 2 1 34 34 H 1.08999 * 109.46692 * 300.00272 * 3 2 1 35 35 H 1.08996 * 109.47162 * 295.34759 * 4 3 2 36 36 H 1.09005 * 109.46785 * 55.34829 * 4 3 2 37 37 H 0.97003 * 120.00642 * 115.37822 * 6 5 4 38 38 H 1.08997 * 110.48998 * 240.12735 * 11 9 7 39 39 H 1.08995 * 110.48978 * 2.64719 * 11 9 7 40 40 H 1.08999 * 110.90841 * 139.07758 * 12 11 9 41 41 H 1.09006 * 110.90476 * 262.64716 * 12 11 9 42 42 H 1.08995 * 109.47003 * 59.99722 * 15 13 12 43 43 H 1.09002 * 109.46963 * 179.97438 * 15 13 12 44 44 H 1.08996 * 109.46687 * 300.00002 * 15 13 12 45 45 H 1.08994 * 109.49797 * 298.56532 * 17 5 4 46 46 H 1.09000 * 109.49755 * 58.66211 * 17 5 4 47 47 H 1.09004 * 109.58608 * 294.84902 * 18 17 5 48 48 H 1.08994 * 109.70575 * 174.49287 * 18 17 5 49 49 H 0.96993 * 119.99619 * 180.02562 * 23 22 20 50 50 H 1.08999 * 109.58926 * 293.81831 * 28 19 18 51 51 H 1.09006 * 109.70676 * 173.45970 * 28 19 18 52 52 H 1.09000 * 109.49790 * 301.33943 * 29 5 4 53 53 H 1.09000 * 109.49488 * 61.40265 * 29 5 4 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 1.4290 0.0000 0.0000 3 6 2.0103 1.3054 0.0000 4 6 3.5355 1.1846 0.0006 5 6 4.1576 2.5774 -0.1165 6 7 3.6191 3.2546 -1.2987 7 6 3.8729 2.7663 -2.5290 8 8 4.4662 1.7159 -2.6541 9 6 3.4196 3.5254 -3.7494 10 1 2.3456 3.7040 -3.6967 11 6 4.1703 4.8681 -3.8401 12 6 4.8868 4.8103 -5.2112 13 6 4.0601 3.7374 -5.9647 14 1 3.1527 4.1746 -6.3812 15 6 4.8984 3.0875 -7.0674 16 8 3.7328 2.7762 -4.9354 17 6 5.6765 2.4479 -0.2510 18 6 6.2925 3.8423 -0.4027 19 7 5.8555 4.6775 0.7243 20 6 6.7716 5.3312 1.5045 21 1 7.7486 4.9005 1.6660 22 6 6.4443 6.5476 2.0878 23 7 5.3902 7.2157 1.6693 24 14 7.4996 7.2362 3.4669 25 1 8.5745 8.0838 2.8913 26 1 6.6559 8.0548 4.3742 27 1 8.1072 6.1173 4.2310 28 6 4.4171 4.7975 0.9987 29 6 3.8221 3.3924 1.1347 30 1 -0.3633 -1.0277 0.0005 31 1 -0.3633 0.5138 0.8900 32 1 -0.3633 0.5139 -0.8900 33 1 1.6887 1.8463 0.8900 34 1 1.6886 1.8463 -0.8900 35 1 3.8626 0.7175 0.9296 36 1 3.8519 0.5732 -0.8445 37 1 3.0799 4.0544 -1.1962 38 1 3.4675 5.7008 -3.8118 39 1 4.8959 4.9549 -3.0314 40 1 4.8310 5.7726 -5.7201 41 1 5.9232 4.4931 -5.0954 42 1 5.7742 2.6124 -6.6256 43 1 4.3000 2.3370 -7.5840 44 1 5.2181 3.8499 -7.7777 45 1 6.0808 1.9665 0.6394 46 1 5.9140 1.8477 -1.1293 47 1 5.9591 4.2891 -1.3394 48 1 7.3798 3.7659 -0.4010 49 1 5.1618 8.0658 2.0766 50 1 3.9308 5.3222 0.1763 51 1 4.2647 5.3502 1.9258 52 1 2.7399 3.4644 1.2427 53 1 4.2434 2.9018 2.0122 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 ZINC001151320576.mol2 53 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Tue Mar 31 2020 23:37:01 Heat of formation + Delta-G solvation = -109.114320 kcal Electronic energy + Delta-G solvation = -32721.697899 eV Core-core repulsion = 28594.004089 eV Total energy + Delta-G solvation = -4127.693811 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 1.25 seconds Orbital eigenvalues (eV) -40.62305 -39.25462 -37.67414 -37.02472 -34.53775 -32.63635 -32.32297 -31.65034 -30.97707 -30.00782 -28.97831 -26.77002 -26.43043 -24.80483 -23.03220 -22.70799 -22.11938 -21.29863 -20.82712 -20.06235 -18.70728 -17.44369 -16.84509 -16.57011 -16.35212 -15.94557 -15.71512 -15.09757 -14.91308 -14.73536 -14.34807 -14.10582 -13.92058 -13.75779 -13.48296 -13.45576 -13.18352 -12.89619 -12.69996 -12.54852 -12.37497 -12.30670 -11.76143 -11.70873 -11.52022 -11.48544 -11.29180 -11.09718 -11.00127 -10.97966 -10.94860 -10.85984 -10.73661 -10.39804 -10.31920 -10.01756 -9.92136 -9.77372 -9.61123 -9.44841 -8.93476 -8.62229 -8.50288 -6.64409 -5.84123 -3.28570 2.90061 3.12853 3.34122 3.41479 3.44264 3.83172 3.99243 4.45771 4.47160 4.64974 4.77680 4.87406 5.02491 5.10545 5.18870 5.22714 5.27032 5.29993 5.32470 5.37305 5.42455 5.45697 5.51223 5.53653 5.56836 5.58731 5.62934 5.72586 5.77648 5.79517 5.92852 6.00670 6.06067 6.10816 6.19966 6.28090 6.29998 6.41232 6.49589 6.62663 6.65376 6.80173 6.82342 6.94988 7.05883 7.23829 7.24819 7.51522 7.76856 7.88530 8.43173 8.56939 9.18222 9.80364 10.39315 11.24504 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.008560 B = 0.004412 C = 0.003187 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 3270.268270 B = 6344.262509 C = 8784.588482 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.033 3.967 2 O -0.393 6.393 3 C 0.067 3.933 4 C -0.128 4.128 5 C 0.197 3.803 6 N -0.711 5.711 7 C 0.516 3.484 8 O -0.518 6.518 9 C 0.061 3.939 10 H 0.086 0.914 11 C -0.149 4.149 12 C -0.147 4.147 13 C 0.069 3.931 14 H 0.070 0.930 15 C -0.145 4.145 16 O -0.345 6.345 17 C -0.144 4.144 18 C 0.153 3.847 19 N -0.589 5.589 20 C -0.252 4.252 21 H 0.063 0.937 22 C 0.006 3.994 23 N -0.904 5.904 24 Si 0.900 3.100 25 H -0.287 1.287 26 H -0.290 1.290 27 H -0.279 1.279 28 C 0.176 3.824 29 C -0.149 4.149 30 H 0.082 0.918 31 H 0.039 0.961 32 H 0.037 0.963 33 H 0.048 0.952 34 H 0.045 0.955 35 H 0.073 0.927 36 H 0.087 0.913 37 H 0.399 0.601 38 H 0.084 0.916 39 H 0.092 0.908 40 H 0.082 0.918 41 H 0.080 0.920 42 H 0.066 0.934 43 H 0.061 0.939 44 H 0.070 0.930 45 H 0.065 0.935 46 H 0.076 0.924 47 H 0.014 0.986 48 H 0.051 0.949 49 H 0.253 0.747 50 H 0.017 0.983 51 H 0.084 0.916 52 H 0.054 0.946 53 H 0.073 0.927 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -9.042 -6.049 -10.885 15.389 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 -0.064 4.064 2 O -0.312 6.312 3 C -0.009 4.009 4 C -0.166 4.166 5 C 0.111 3.889 6 N -0.365 5.365 7 C 0.301 3.699 8 O -0.393 6.393 9 C -0.001 4.001 10 H 0.104 0.896 11 C -0.187 4.187 12 C -0.185 4.185 13 C 0.011 3.989 14 H 0.087 0.913 15 C -0.202 4.202 16 O -0.263 6.263 17 C -0.184 4.184 18 C 0.027 3.973 19 N -0.312 5.312 20 C -0.382 4.382 21 H 0.080 0.920 22 C -0.192 4.192 23 N -0.548 5.548 24 Si 0.730 3.270 25 H -0.214 1.214 26 H -0.216 1.216 27 H -0.204 1.204 28 C 0.050 3.950 29 C -0.188 4.188 30 H 0.100 0.900 31 H 0.057 0.943 32 H 0.056 0.944 33 H 0.066 0.934 34 H 0.063 0.937 35 H 0.091 0.909 36 H 0.105 0.895 37 H 0.234 0.766 38 H 0.103 0.897 39 H 0.111 0.889 40 H 0.100 0.900 41 H 0.099 0.901 42 H 0.085 0.915 43 H 0.080 0.920 44 H 0.089 0.911 45 H 0.084 0.916 46 H 0.095 0.905 47 H 0.032 0.968 48 H 0.069 0.931 49 H 0.063 0.937 50 H 0.035 0.965 51 H 0.102 0.898 52 H 0.073 0.927 53 H 0.092 0.908 Dipole moment (debyes) X Y Z Total from point charges -8.521 -7.038 -10.935 15.547 hybrid contribution -0.132 1.421 0.867 1.669 sum -8.653 -5.618 -10.068 14.416 Atomic orbital electron populations 1.22687 0.81671 1.02313 0.99721 1.87878 1.19179 1.28782 1.95379 1.22561 0.94601 0.83969 0.99791 1.21969 0.92609 0.98106 1.03929 1.20184 0.93953 0.90157 0.84568 1.46066 1.54332 1.30871 1.05195 1.20254 0.79838 0.85701 0.84082 1.90639 1.40279 1.22180 1.86227 1.22587 0.99661 0.91412 0.86402 0.89596 1.22959 1.00601 0.95692 0.99418 1.23164 1.00637 0.99617 0.95070 1.23221 0.96935 0.89077 0.89656 0.91257 1.21752 1.00285 1.01114 0.97079 1.89040 1.89264 1.29402 1.18625 1.22397 0.93295 1.00268 1.02416 1.20837 0.96985 0.89126 0.90401 1.43976 1.01848 1.54544 1.30785 1.19152 0.96489 0.99316 1.23247 0.91968 1.25089 0.98135 0.95473 1.00530 1.69997 1.28368 1.14412 1.42004 0.86336 0.79738 0.78772 0.82159 1.21401 1.21601 1.20444 1.20669 0.83607 0.89945 1.00762 1.22599 0.99681 1.00676 0.95864 0.89987 0.94277 0.94398 0.93355 0.93664 0.90857 0.89454 0.76629 0.89723 0.88936 0.89977 0.90087 0.91473 0.91958 0.91144 0.91645 0.90527 0.96783 0.93069 0.93714 0.96486 0.89803 0.92729 0.90820 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 16. 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 0.03 0.35 11.01 101.05 1.11 1.47 16 2 O -0.39 -5.84 10.70 -35.23 -0.38 -6.21 16 3 C 0.07 0.96 5.45 37.16 0.20 1.16 16 4 C -0.13 -2.02 4.40 -26.74 -0.12 -2.13 16 5 C 0.20 3.22 0.35 -131.78 -0.05 3.17 16 6 N -0.71 -10.66 2.96 -47.57 -0.14 -10.80 16 7 C 0.52 8.27 6.15 -10.98 -0.07 8.20 16 8 O -0.52 -10.09 12.84 -14.01 -0.18 -10.27 16 9 C 0.06 0.81 3.84 -27.31 -0.10 0.71 16 10 H 0.09 0.95 8.14 -51.93 -0.42 0.53 16 11 C -0.15 -1.80 6.62 -25.20 -0.17 -1.97 16 12 C -0.15 -1.60 6.59 -24.72 -0.16 -1.76 16 13 C 0.07 0.76 3.97 -25.68 -0.10 0.65 16 14 H 0.07 0.65 8.14 -51.93 -0.42 0.22 16 15 C -0.15 -1.39 9.66 37.16 0.36 -1.03 16 16 O -0.34 -5.11 10.47 -54.80 -0.57 -5.69 16 17 C -0.14 -2.66 4.59 -26.61 -0.12 -2.78 16 18 C 0.15 3.20 6.26 -3.71 -0.02 3.17 16 19 N -0.59 -13.91 2.98 -172.31 -0.51 -14.43 16 20 C -0.25 -6.69 9.56 -15.06 -0.14 -6.84 16 21 H 0.06 1.66 7.87 -52.49 -0.41 1.24 16 22 C 0.01 0.17 4.94 -17.43 -0.09 0.09 16 23 N -0.90 -24.88 11.33 55.49 0.63 -24.26 16 24 Si 0.90 21.12 29.58 -169.99 -5.03 16.09 16 25 H -0.29 -6.78 7.11 56.52 0.40 -6.37 16 26 H -0.29 -6.83 7.11 56.52 0.40 -6.43 16 27 H -0.28 -6.48 7.11 56.52 0.40 -6.08 16 28 C 0.18 3.78 4.99 -3.71 -0.02 3.76 16 29 C -0.15 -2.55 4.73 -26.61 -0.13 -2.68 16 30 H 0.08 0.74 8.14 -51.93 -0.42 0.32 16 31 H 0.04 0.37 8.14 -51.93 -0.42 -0.05 16 32 H 0.04 0.38 8.14 -51.93 -0.42 -0.05 16 33 H 0.05 0.64 6.77 -51.93 -0.35 0.29 16 34 H 0.05 0.63 7.29 -51.93 -0.38 0.25 16 35 H 0.07 1.14 8.14 -51.93 -0.42 0.72 16 36 H 0.09 1.57 6.49 -51.93 -0.34 1.24 16 37 H 0.40 5.43 7.43 -40.82 -0.30 5.13 16 38 H 0.08 0.86 8.14 -51.93 -0.42 0.43 16 39 H 0.09 1.35 6.58 -51.93 -0.34 1.01 16 40 H 0.08 0.72 8.14 -51.93 -0.42 0.30 16 41 H 0.08 0.96 8.06 -51.93 -0.42 0.54 16 42 H 0.07 0.72 8.14 -51.93 -0.42 0.30 16 43 H 0.06 0.57 8.14 -51.93 -0.42 0.15 16 44 H 0.07 0.52 8.14 -51.93 -0.42 0.10 16 45 H 0.06 1.22 8.14 -51.93 -0.42 0.80 16 46 H 0.08 1.48 6.06 -51.93 -0.31 1.16 16 47 H 0.01 0.30 6.45 -51.93 -0.33 -0.03 16 48 H 0.05 1.10 7.93 -51.93 -0.41 0.68 16 49 H 0.25 6.79 8.31 -40.82 -0.34 6.45 16 50 H 0.02 0.37 7.03 -51.93 -0.37 0.00 16 51 H 0.08 2.06 6.27 -51.93 -0.33 1.74 16 52 H 0.05 0.82 6.62 -51.93 -0.34 0.47 16 53 H 0.07 1.32 8.14 -51.93 -0.42 0.90 16 LS Contribution 400.28 15.07 6.03 6.03 Total: -1.00 -31.34 400.28 -9.04 -40.38 By element: Atomic # 1 Polarization: 15.23 SS G_CDS: -9.27 Total: 5.96 kcal Atomic # 6 Polarization: 2.81 SS G_CDS: 0.39 Total: 3.20 kcal Atomic # 7 Polarization: -49.46 SS G_CDS: -0.03 Total: -49.49 kcal Atomic # 8 Polarization: -21.04 SS G_CDS: -1.13 Total: -22.17 kcal Atomic # 14 Polarization: 21.12 SS G_CDS: -5.03 Total: 16.09 kcal Total LS contribution 6.03 Total: 6.03 kcal Total: -31.34 -9.04 -40.38 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. ZINC001151320576.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 -68.737 kcal (2) G-P(sol) polarization free energy of solvation -31.342 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -100.079 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.036 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -40.378 kcal (6) G-S(sol) free energy of system = (1) + (5) -109.114 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.25 seconds