Wall clock time and date at job start Wed Apr 1 2020 00:14:09 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 1.52993 * 1 3 3 H 1.09001 * 109.47189 * 2 1 4 4 C 1.50690 * 109.47694 * 239.99698 * 2 1 3 5 5 H 1.08005 * 120.00592 * 245.45830 * 4 2 1 6 6 C 1.37879 * 120.00236 * 65.45670 * 4 2 1 7 7 N 1.31517 * 119.99458 * 9.61782 * 6 4 2 8 8 Si 1.86792 * 120.00315 * 189.62030 * 6 4 2 9 9 H 1.48499 * 109.47210 * 84.99431 * 8 6 4 10 10 H 1.48508 * 109.47337 * 204.99119 * 8 6 4 11 11 H 1.48498 * 109.47253 * 324.99302 * 8 6 4 12 12 N 1.46507 * 109.46949 * 119.99640 * 2 1 3 13 13 C 1.46502 * 120.00053 * 60.00139 * 12 2 1 14 14 C 1.34777 * 119.99900 * 240.00576 * 12 2 1 15 15 O 1.21280 * 120.00235 * 0.02562 * 14 12 2 16 16 C 1.50700 * 119.99992 * 180.02562 * 14 12 2 17 17 H 1.09004 * 110.64199 * 56.85101 * 16 14 12 18 18 C 1.55163 * 110.87217 * 293.60963 * 16 14 12 19 19 C 1.54907 * 101.58306 * 206.06227 * 18 16 14 20 20 N 1.47747 * 104.83860 * 37.09232 * 19 18 16 21 21 C 1.34784 * 125.81839 * 155.83216 * 20 19 18 22 22 O 1.21517 * 119.99430 * 179.90822 * 21 20 19 23 23 O 1.34632 * 119.99996 * 359.90157 * 21 20 19 24 24 C 1.45202 * 116.99864 * 180.02562 * 23 21 20 25 25 C 1.52996 * 109.47092 * 60.00063 * 24 23 21 26 26 C 1.52997 * 109.47314 * 180.02562 * 24 23 21 27 27 C 1.53009 * 109.46862 * 300.00393 * 24 23 21 28 28 C 1.47014 * 108.53106 * 335.75160 * 20 19 18 29 29 H 1.08995 * 109.88520 * 120.68070 * 28 20 19 30 30 C 1.53003 * 109.88108 * 241.68867 * 28 20 19 31 31 H 1.09000 * 109.47749 * 303.29153 * 1 2 3 32 32 H 1.09005 * 109.47017 * 63.29167 * 1 2 3 33 33 H 1.08999 * 109.47399 * 183.28533 * 1 2 3 34 34 H 0.97005 * 119.99691 * 179.97438 * 7 6 4 35 35 H 1.08998 * 109.47183 * 270.00736 * 13 12 2 36 36 H 1.09001 * 109.46585 * 29.99905 * 13 12 2 37 37 H 1.08997 * 109.46872 * 150.00194 * 13 12 2 38 38 H 1.08999 * 111.00016 * 324.13898 * 18 16 14 39 39 H 1.09006 * 111.00777 * 87.98357 * 18 16 14 40 40 H 1.09002 * 110.36666 * 155.84386 * 19 18 16 41 41 H 1.08998 * 110.36722 * 278.05846 * 19 18 16 42 42 H 1.08996 * 109.47264 * 60.00384 * 25 24 23 43 43 H 1.09004 * 109.46808 * 180.02562 * 25 24 23 44 44 H 1.09002 * 109.47082 * 299.99997 * 25 24 23 45 45 H 1.09001 * 109.47002 * 60.00047 * 26 24 23 46 46 H 1.08998 * 109.47463 * 180.02562 * 26 24 23 47 47 H 1.08994 * 109.47145 * 300.00133 * 26 24 23 48 48 H 1.08991 * 109.47102 * 59.99846 * 27 24 23 49 49 H 1.08998 * 109.46771 * 180.02562 * 27 24 23 50 50 H 1.09001 * 109.46677 * 299.99503 * 27 24 23 51 51 H 1.09005 * 109.46994 * 178.28528 * 30 28 20 52 52 H 1.08993 * 109.47495 * 58.28386 * 30 28 20 53 53 H 1.09001 * 109.47421 * 298.28210 * 30 28 20 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 1.5299 0.0000 0.0000 3 1 1.8933 1.0277 0.0000 4 6 2.0324 -0.7104 -1.2303 5 1 2.5787 -1.6371 -1.1337 6 6 1.7947 -0.1775 -2.4795 7 7 1.3003 1.0359 -2.5935 8 14 2.1746 -1.1789 -4.0099 9 1 1.0217 -2.0609 -4.3232 10 1 2.4217 -0.2627 -5.1523 11 1 3.3824 -2.0091 -3.7710 12 7 2.0182 -0.6906 1.1963 13 6 1.6643 -2.0932 1.4282 14 6 2.7930 -0.0355 2.0835 15 8 3.0856 1.1258 1.8918 16 6 3.2958 -0.7460 3.3137 17 1 3.8585 -1.6382 3.0391 18 6 2.1219 -1.1076 4.2618 19 6 2.8364 -1.1606 5.6352 20 7 3.8351 -0.0730 5.5844 21 6 4.3639 0.5626 6.6489 22 8 5.1828 1.4452 6.4842 23 8 3.9847 0.2198 7.8944 24 6 4.5952 0.9470 8.9929 25 6 4.2722 2.4366 8.8603 26 6 4.0452 0.4217 10.3205 27 6 6.1119 0.7487 8.9555 28 6 4.1579 0.1995 4.1763 29 1 3.9241 1.2367 3.9364 30 6 5.6419 -0.0715 3.9209 31 1 -0.3634 0.5641 0.8590 32 1 -0.3633 0.4619 -0.9181 33 1 -0.3634 -1.0259 0.0589 34 1 1.1334 1.4110 -3.4724 35 1 0.7374 -2.1443 1.9994 36 1 1.5295 -2.5968 0.4710 37 1 2.4628 -2.5817 1.9866 38 1 1.3564 -0.3317 4.2492 39 1 1.6967 -2.0778 4.0048 40 1 2.1239 -0.9823 6.4406 41 1 3.3273 -2.1243 5.7705 42 1 3.1918 2.5780 8.8870 43 1 4.7309 2.9826 9.6848 44 1 4.6644 2.8106 7.9145 45 1 4.2756 -0.6395 10.4147 46 1 4.5030 0.9679 11.1451 47 1 2.9647 0.5626 10.3473 48 1 6.5039 1.1226 8.0098 49 1 6.5700 1.2942 9.7805 50 1 6.3419 -0.3126 9.0501 51 1 5.8674 0.1033 2.8688 52 1 5.8712 -1.1064 4.1745 53 1 6.2445 0.5957 4.5372 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 ZINC000492307821.mol2 53 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Wed Apr 1 2020 00:14:09 Heat of formation + Delta-G solvation = -114.716549 kcal Electronic energy + Delta-G solvation = -31679.724555 eV Core-core repulsion = 27551.787813 eV Total energy + Delta-G solvation = -4127.936742 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 1.05 seconds Orbital eigenvalues (eV) -40.99440 -39.85635 -38.07701 -36.42950 -35.37810 -34.24762 -32.98544 -31.66662 -31.30225 -29.42115 -27.63678 -27.56255 -26.50803 -25.99271 -25.19896 -23.91619 -22.40091 -21.54680 -20.29150 -19.26869 -18.45279 -17.69858 -17.16719 -16.54345 -16.34650 -16.14981 -15.52265 -15.04946 -14.86997 -14.53192 -14.41460 -14.27557 -13.85703 -13.64035 -13.32523 -13.19636 -12.90753 -12.72002 -12.56909 -12.44444 -12.36308 -12.18689 -12.09674 -12.05052 -11.88242 -11.71050 -11.62085 -11.57862 -11.45991 -11.34124 -11.05462 -10.93930 -10.89657 -10.75824 -10.69680 -10.47956 -10.30775 -10.20187 -10.01168 -9.26528 -8.97870 -8.72632 -8.42321 -7.65305 -6.10977 -4.15989 1.99136 2.83435 3.24957 3.26857 3.33004 3.34760 3.73509 3.85612 4.36997 4.40756 4.50736 4.52729 4.54733 4.69303 4.86594 5.11520 5.16065 5.20640 5.22774 5.28178 5.31242 5.35769 5.44546 5.45920 5.51297 5.54344 5.61622 5.65737 5.66293 5.72914 5.74836 5.84139 5.94399 6.00987 6.10274 6.14632 6.21750 6.29425 6.30809 6.34752 6.45054 6.64843 6.72515 6.95665 7.30536 7.46547 7.51998 7.66478 7.89972 8.14116 8.32476 8.47641 8.81721 9.00124 9.49066 10.96439 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.026540 B = 0.002387 C = 0.002350 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1054.755324 B =11729.618284 C =11909.892819 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.140 4.140 2 C 0.256 3.744 3 H 0.070 0.930 4 C -0.530 4.530 5 H 0.060 0.940 6 C 0.067 3.933 7 N -0.883 5.883 8 Si 0.895 3.105 9 H -0.279 1.279 10 H -0.286 1.286 11 H -0.275 1.275 12 N -0.588 5.588 13 C 0.081 3.919 14 C 0.515 3.485 15 O -0.545 6.545 16 C -0.119 4.119 17 H 0.109 0.891 18 C -0.123 4.123 19 C 0.106 3.894 20 N -0.600 5.600 21 C 0.669 3.331 22 O -0.564 6.564 23 O -0.364 6.364 24 C 0.136 3.864 25 C -0.184 4.184 26 C -0.139 4.139 27 C -0.183 4.183 28 C 0.165 3.835 29 H 0.102 0.898 30 C -0.161 4.161 31 H 0.015 0.985 32 H 0.075 0.925 33 H 0.032 0.968 34 H 0.264 0.736 35 H 0.044 0.956 36 H 0.080 0.920 37 H 0.054 0.946 38 H 0.083 0.917 39 H 0.095 0.905 40 H 0.081 0.919 41 H 0.072 0.928 42 H 0.059 0.941 43 H 0.068 0.932 44 H 0.089 0.911 45 H 0.065 0.935 46 H 0.079 0.921 47 H 0.066 0.934 48 H 0.089 0.911 49 H 0.068 0.932 50 H 0.058 0.942 51 H 0.072 0.928 52 H 0.052 0.948 53 H 0.071 0.929 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 3.144 -6.710 22.979 24.144 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 -0.198 4.198 2 C 0.156 3.844 3 H 0.088 0.912 4 C -0.569 4.569 5 H 0.078 0.922 6 C -0.136 4.136 7 N -0.521 5.521 8 Si 0.722 3.278 9 H -0.205 1.205 10 H -0.212 1.212 11 H -0.200 1.200 12 N -0.319 5.319 13 C -0.063 4.063 14 C 0.300 3.700 15 O -0.423 6.423 16 C -0.141 4.141 17 H 0.127 0.873 18 C -0.161 4.161 19 C -0.017 4.017 20 N -0.342 5.342 21 C 0.424 3.576 22 O -0.453 6.453 23 O -0.279 6.279 24 C 0.099 3.901 25 C -0.241 4.241 26 C -0.197 4.197 27 C -0.240 4.240 28 C 0.064 3.936 29 H 0.120 0.880 30 C -0.219 4.219 31 H 0.034 0.966 32 H 0.094 0.906 33 H 0.051 0.949 34 H 0.074 0.926 35 H 0.063 0.937 36 H 0.099 0.901 37 H 0.073 0.927 38 H 0.102 0.898 39 H 0.114 0.886 40 H 0.100 0.900 41 H 0.090 0.910 42 H 0.078 0.922 43 H 0.087 0.913 44 H 0.108 0.892 45 H 0.084 0.916 46 H 0.098 0.902 47 H 0.085 0.915 48 H 0.107 0.893 49 H 0.087 0.913 50 H 0.077 0.923 51 H 0.091 0.909 52 H 0.071 0.929 53 H 0.090 0.910 Dipole moment (debyes) X Y Z Total from point charges 3.523 -5.615 22.809 23.752 hybrid contribution 0.124 -0.708 -0.902 1.154 sum 3.647 -6.323 21.906 23.090 Atomic orbital electron populations 1.22007 0.98559 0.98845 1.00431 1.18965 0.90415 0.95136 0.79923 0.91191 1.21249 1.36655 1.08597 0.90366 0.92197 1.24905 0.95127 0.94609 0.98979 1.69975 1.44260 1.13687 1.24132 0.86570 0.78659 0.80014 0.82514 1.20492 1.21206 1.19982 1.48160 1.48816 1.11530 1.23365 1.21691 0.98773 0.83414 1.02425 1.19872 0.79431 0.86957 0.83731 1.90676 1.58244 1.16983 1.76408 1.22399 0.97589 0.99658 0.94439 0.87342 1.22855 0.96888 1.03649 0.92696 1.22393 0.90617 0.90261 0.98432 1.47351 1.44329 1.38067 1.04408 1.17415 0.79763 0.80273 0.80153 1.90895 1.36024 1.32932 1.85424 1.86290 1.65993 1.61862 1.13762 1.22044 0.93005 0.91524 0.83535 1.22520 1.02239 0.94441 1.04914 1.21845 1.02061 1.02088 0.93659 1.22512 0.94284 1.02314 1.04883 1.21401 0.94848 1.01140 0.76240 0.88009 1.22142 0.95100 1.01606 1.03014 0.96561 0.90589 0.94931 0.92633 0.93729 0.90121 0.92701 0.89843 0.88633 0.90050 0.90975 0.92199 0.91268 0.89217 0.91559 0.90234 0.91517 0.89266 0.91276 0.92303 0.90862 0.92850 0.91028 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 -0.14 -3.19 9.12 37.15 0.34 -2.85 16 2 C 0.26 6.32 2.50 -69.09 -0.17 6.14 16 3 H 0.07 2.05 6.84 -51.93 -0.36 1.70 16 4 C -0.53 -13.93 8.01 -34.44 -0.28 -14.21 16 5 H 0.06 1.54 7.16 -52.48 -0.38 1.16 16 6 C 0.07 1.81 5.17 -17.82 -0.09 1.72 16 7 N -0.88 -25.05 12.16 55.43 0.67 -24.38 16 8 Si 0.89 20.67 29.55 -169.99 -5.02 15.65 16 9 H -0.28 -6.30 7.11 56.52 0.40 -5.90 16 10 H -0.29 -6.66 7.11 56.52 0.40 -6.26 16 11 H -0.27 -6.29 7.11 56.52 0.40 -5.89 16 12 N -0.59 -11.76 2.75 -175.27 -0.48 -12.24 16 13 C 0.08 1.21 7.97 59.85 0.48 1.69 16 14 C 0.51 10.07 7.05 -10.99 -0.08 9.99 16 15 O -0.54 -13.12 14.75 5.56 0.08 -13.04 16 16 C -0.12 -1.67 1.88 -89.94 -0.17 -1.84 16 17 H 0.11 1.32 6.98 -51.93 -0.36 0.96 16 18 C -0.12 -1.34 5.75 -24.58 -0.14 -1.48 16 19 C 0.11 1.08 6.94 -2.35 -0.02 1.06 16 20 N -0.60 -8.11 3.08 -168.50 -0.52 -8.63 16 21 C 0.67 9.65 7.72 54.06 0.42 10.07 16 22 O -0.56 -9.26 10.92 -19.29 -0.21 -9.47 16 23 O -0.36 -4.52 9.43 -40.30 -0.38 -4.90 16 24 C 0.14 1.37 1.13 -90.62 -0.10 1.27 16 25 C -0.18 -1.89 8.37 37.16 0.31 -1.58 16 26 C -0.14 -0.99 8.85 37.16 0.33 -0.66 16 27 C -0.18 -1.78 8.37 37.16 0.31 -1.47 16 28 C 0.17 2.50 2.88 -66.96 -0.19 2.30 16 29 H 0.10 1.89 6.80 -51.93 -0.35 1.54 16 30 C -0.16 -2.28 9.10 37.16 0.34 -1.94 16 31 H 0.02 0.33 8.14 -51.93 -0.42 -0.09 16 32 H 0.08 1.91 6.84 -51.93 -0.36 1.55 16 33 H 0.03 0.66 7.56 -51.93 -0.39 0.27 16 34 H 0.26 7.12 8.31 -40.82 -0.34 6.78 16 35 H 0.04 0.57 7.79 -51.93 -0.40 0.17 16 36 H 0.08 1.32 6.92 -51.93 -0.36 0.96 16 37 H 0.05 0.65 6.06 -51.93 -0.31 0.33 16 38 H 0.08 1.03 8.04 -51.93 -0.42 0.61 16 39 H 0.10 0.81 6.79 -51.93 -0.35 0.46 16 40 H 0.08 0.75 8.05 -51.93 -0.42 0.34 16 41 H 0.07 0.61 8.14 -51.93 -0.42 0.19 16 42 H 0.06 0.60 8.14 -51.93 -0.42 0.17 16 43 H 0.07 0.56 8.14 -51.93 -0.42 0.14 16 44 H 0.09 1.17 5.88 -51.93 -0.31 0.87 16 45 H 0.07 0.44 8.14 -51.93 -0.42 0.02 16 46 H 0.08 0.42 8.14 -51.93 -0.42 0.00 16 47 H 0.07 0.46 8.14 -51.93 -0.42 0.04 16 48 H 0.09 1.10 5.88 -51.93 -0.31 0.80 16 49 H 0.07 0.53 8.14 -51.93 -0.42 0.11 16 50 H 0.06 0.54 8.14 -51.93 -0.42 0.12 16 51 H 0.07 1.09 8.14 -51.93 -0.42 0.66 16 52 H 0.05 0.66 8.14 -51.93 -0.42 0.23 16 53 H 0.07 1.09 6.89 -51.93 -0.36 0.73 16 LS Contribution 407.15 15.07 6.14 6.14 Total: -1.00 -32.23 407.15 -7.66 -39.88 By element: Atomic # 1 Polarization: 11.97 SS G_CDS: -9.22 Total: 2.76 kcal Atomic # 6 Polarization: 6.94 SS G_CDS: 1.28 Total: 8.23 kcal Atomic # 7 Polarization: -44.92 SS G_CDS: -0.33 Total: -45.25 kcal Atomic # 8 Polarization: -26.90 SS G_CDS: -0.51 Total: -27.41 kcal Atomic # 14 Polarization: 20.67 SS G_CDS: -5.02 Total: 15.65 kcal Total LS contribution 6.14 Total: 6.14 kcal Total: -32.23 -7.66 -39.88 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. ZINC000492307821.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 -74.834 kcal (2) G-P(sol) polarization free energy of solvation -32.228 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -107.061 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -7.655 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -39.883 kcal (6) G-S(sol) free energy of system = (1) + (5) -114.717 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.05 seconds