Wall clock time and date at job start Sat Apr 11 2020 06:11:20 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 1.52998 * 1 3 3 N 1.46498 * 109.47427 * 2 1 4 4 C 1.37105 * 119.99948 * 264.14073 * 3 2 1 5 5 H 1.07994 * 120.00398 * 139.08913 * 4 3 2 6 6 C 1.38950 * 119.99609 * 319.09002 * 4 3 2 7 7 N 1.31408 * 120.00143 * 171.74182 * 6 4 3 8 8 Si 1.86805 * 120.00174 * 351.73803 * 6 4 3 9 9 H 1.48492 * 109.47118 * 90.25472 * 8 6 4 10 10 H 1.48502 * 109.47209 * 210.25332 * 8 6 4 11 11 H 1.48498 * 109.47040 * 330.25075 * 8 6 4 12 12 C 1.34777 * 120.00116 * 84.13699 * 3 2 1 13 13 O 1.21285 * 120.00238 * 5.66244 * 12 3 2 14 14 C 1.50704 * 119.99784 * 185.65916 * 12 3 2 15 15 C 1.53008 * 109.49533 * 66.41845 * 14 12 3 16 16 C 1.53034 * 109.52245 * 186.49678 * 14 12 3 17 17 C 1.53036 * 109.53792 * 58.60361 * 16 14 12 18 18 C 1.52765 * 109.38380 * 61.23990 * 17 16 14 19 19 N 1.46925 * 109.00896 * 305.59000 * 18 17 16 20 20 C 1.34776 * 120.63450 * 233.58493 * 19 18 17 21 21 O 1.21505 * 120.00445 * 183.16498 * 20 19 18 22 22 O 1.34637 * 119.99556 * 2.88878 * 20 19 18 23 23 C 1.45201 * 117.00041 * 181.58037 * 22 20 19 24 24 C 1.52998 * 109.47120 * 57.40767 * 23 22 20 25 25 C 1.52992 * 109.47253 * 177.41418 * 23 22 20 26 26 C 1.53001 * 109.46792 * 297.41069 * 23 22 20 27 27 C 1.46931 * 118.73819 * 53.30277 * 19 18 17 28 28 H 1.08998 * 109.46922 * 64.95467 * 1 2 3 29 29 H 1.08993 * 109.47650 * 184.95646 * 1 2 3 30 30 H 1.08997 * 109.47112 * 304.96148 * 1 2 3 31 31 H 1.09004 * 109.47115 * 239.99528 * 2 1 3 32 32 H 1.09001 * 109.46739 * 119.99894 * 2 1 3 33 33 H 0.96998 * 120.00799 * 179.97438 * 7 6 4 34 34 H 1.08995 * 109.47308 * 312.41420 * 15 14 12 35 35 H 1.09004 * 109.46875 * 72.41324 * 15 14 12 36 36 H 1.09000 * 109.46721 * 192.41192 * 15 14 12 37 37 H 1.08994 * 109.46208 * 178.62460 * 16 14 12 38 38 H 1.09008 * 109.46483 * 298.58577 * 16 14 12 39 39 H 1.09003 * 109.49966 * 181.31608 * 17 16 14 40 40 H 1.09001 * 109.50290 * 301.41738 * 17 16 14 41 41 H 1.08996 * 109.51175 * 185.70362 * 18 17 16 42 42 H 1.09004 * 109.43058 * 65.42323 * 18 17 16 43 43 H 1.09001 * 109.46692 * 60.00728 * 24 23 22 44 44 H 1.09000 * 109.46939 * 179.97438 * 24 23 22 45 45 H 1.08995 * 109.47220 * 300.00344 * 24 23 22 46 46 H 1.09003 * 109.47481 * 59.99668 * 25 23 22 47 47 H 1.09000 * 109.47526 * 179.97438 * 25 23 22 48 48 H 1.09001 * 109.47334 * 299.99746 * 25 23 22 49 49 H 1.09004 * 109.47424 * 61.61845 * 26 23 22 50 50 H 1.09009 * 109.47272 * 181.61669 * 26 23 22 51 51 H 1.09000 * 109.47440 * 301.61369 * 26 23 22 52 52 H 1.08999 * 109.58351 * 66.43524 * 27 19 18 53 53 H 1.08997 * 109.58990 * 186.86046 * 27 19 18 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 1.5300 0.0000 0.0000 3 7 2.0184 1.3812 0.0000 4 6 2.3612 1.9871 -1.1812 5 1 2.0919 3.0179 -1.3574 6 6 3.0552 1.2747 -2.1515 7 7 3.2422 1.7975 -3.3425 8 14 3.7225 -0.4263 -1.7630 9 1 2.7012 -1.4486 -2.1050 10 1 4.9522 -0.6695 -2.5593 11 1 4.0446 -0.5131 -0.3160 12 6 2.1306 2.0563 1.1611 13 8 1.9263 1.4901 2.2140 14 6 2.5102 3.5147 1.1510 15 6 1.3896 4.3295 0.5019 16 6 2.7262 3.9969 2.5873 17 6 3.8243 3.1606 3.2482 18 6 5.1307 3.3383 2.4765 19 7 4.8978 3.0190 1.0614 20 6 5.6682 2.1140 0.4258 21 8 5.5030 1.9007 -0.7590 22 8 6.6244 1.4503 1.1024 23 6 7.4393 0.5163 0.3462 24 6 8.1195 1.2527 -0.8096 25 6 8.5045 -0.0891 1.2626 26 6 6.5525 -0.5990 -0.2111 27 6 3.8051 3.7005 0.3540 28 1 -0.3633 0.4350 -0.9310 29 1 -0.3634 -1.0237 0.0888 30 1 -0.3633 0.5889 0.8422 31 1 1.8933 -0.5139 -0.8900 32 1 1.8932 -0.5138 0.8900 33 1 3.7270 1.3004 -4.0199 34 1 1.0862 3.8522 -0.4299 35 1 0.5371 4.3789 1.1793 36 1 1.7473 5.3379 0.2939 37 1 3.0244 5.0451 2.5774 38 1 1.7990 3.8886 3.1501 39 1 3.9614 3.4890 4.2785 40 1 3.5379 2.1090 3.2362 41 1 5.8876 2.6674 2.8827 42 1 5.4680 4.3708 2.5674 43 1 8.7514 2.0472 -0.4125 44 1 8.7316 0.5516 -1.3770 45 1 7.3607 1.6839 -1.4624 46 1 8.0199 -0.6137 2.0860 47 1 9.1160 -0.7906 0.6951 48 1 9.1363 0.7054 1.6597 49 1 5.8117 -0.1709 -0.8865 50 1 7.1684 -1.3156 -0.7546 51 1 6.0457 -1.1051 0.6105 52 1 4.0321 4.7632 0.2683 53 1 3.6877 3.2686 -0.6398 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 ZINC000367043749.mol2 53 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Sat Apr 11 2020 06:11:20 Heat of formation + Delta-G solvation = -79.795936 kcal Electronic energy + Delta-G solvation = -35198.043578 eV Core-core repulsion = 31071.621108 eV Total energy + Delta-G solvation = -4126.422470 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.71 seconds Orbital eigenvalues (eV) -40.57995 -39.59912 -37.34029 -36.01881 -34.99619 -33.95309 -32.94073 -31.99453 -31.47310 -29.61894 -27.28706 -27.15781 -26.41948 -25.18087 -24.88815 -23.35649 -21.91254 -21.55748 -20.50823 -18.90903 -18.30610 -17.34317 -16.79122 -16.31523 -15.78402 -15.51808 -15.40967 -14.76880 -14.51759 -14.28506 -14.07645 -13.83651 -13.44331 -13.33855 -13.18589 -12.99024 -12.74527 -12.65548 -12.36077 -12.25274 -12.10716 -11.94740 -11.84702 -11.67553 -11.61433 -11.54848 -11.38119 -11.29438 -11.11489 -11.04964 -10.90877 -10.62663 -10.43439 -10.24044 -10.13953 -10.02967 -9.88848 -9.57285 -9.45886 -9.22773 -8.87113 -8.35919 -7.99274 -7.57477 -6.28782 -3.97651 2.71081 3.13535 3.34401 3.39331 3.64268 3.81399 4.29217 4.36908 4.44220 4.97314 4.99692 5.13717 5.15963 5.23054 5.31251 5.45887 5.52704 5.60862 5.71469 5.73276 5.75104 5.79194 5.86835 5.90073 5.93294 5.96939 6.07337 6.09230 6.11544 6.13546 6.15492 6.19195 6.21441 6.30349 6.38050 6.42313 6.53487 6.60054 6.62627 6.64963 6.66014 6.76558 6.84486 6.86062 6.98581 7.16698 7.29061 7.55117 8.07745 8.16484 8.32090 9.07848 9.09274 9.45085 9.77385 10.78751 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.010539 B = 0.007576 C = 0.005656 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2656.266764 B = 3695.045049 C = 4949.481363 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.155 4.155 2 C 0.095 3.905 3 N -0.460 5.460 4 C -0.355 4.355 5 H 0.115 0.885 6 C 0.093 3.907 7 N -0.861 5.861 8 Si 0.920 3.080 9 H -0.303 1.303 10 H -0.296 1.296 11 H -0.266 1.266 12 C 0.499 3.501 13 O -0.596 6.596 14 C -0.074 4.074 15 C -0.142 4.142 16 C -0.090 4.090 17 C -0.146 4.146 18 C 0.112 3.888 19 N -0.586 5.586 20 C 0.645 3.355 21 O -0.532 6.532 22 O -0.371 6.371 23 C 0.139 3.861 24 C -0.184 4.184 25 C -0.137 4.137 26 C -0.196 4.196 27 C 0.107 3.893 28 H 0.059 0.941 29 H 0.049 0.951 30 H 0.054 0.946 31 H 0.062 0.938 32 H 0.063 0.937 33 H 0.273 0.727 34 H 0.084 0.916 35 H 0.051 0.949 36 H 0.056 0.944 37 H 0.057 0.943 38 H 0.064 0.936 39 H 0.062 0.938 40 H 0.095 0.905 41 H 0.080 0.920 42 H 0.058 0.942 43 H 0.056 0.944 44 H 0.063 0.937 45 H 0.096 0.904 46 H 0.064 0.936 47 H 0.075 0.925 48 H 0.064 0.936 49 H 0.094 0.906 50 H 0.064 0.936 51 H 0.059 0.941 52 H 0.055 0.945 53 H 0.168 0.832 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 5.814 1.548 7.477 9.597 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 -0.213 4.213 2 C -0.027 4.027 3 N -0.180 5.180 4 C -0.481 4.481 5 H 0.132 0.868 6 C -0.116 4.116 7 N -0.496 5.496 8 Si 0.755 3.245 9 H -0.234 1.234 10 H -0.224 1.224 11 H -0.192 1.192 12 C 0.288 3.712 13 O -0.482 6.482 14 C -0.078 4.078 15 C -0.200 4.200 16 C -0.128 4.128 17 C -0.184 4.184 18 C -0.011 4.011 19 N -0.326 5.326 20 C 0.400 3.600 21 O -0.419 6.419 22 O -0.287 6.287 23 C 0.102 3.898 24 C -0.242 4.242 25 C -0.194 4.194 26 C -0.253 4.253 27 C -0.013 4.013 28 H 0.078 0.922 29 H 0.068 0.932 30 H 0.073 0.927 31 H 0.079 0.921 32 H 0.081 0.919 33 H 0.083 0.917 34 H 0.103 0.897 35 H 0.070 0.930 36 H 0.075 0.925 37 H 0.076 0.924 38 H 0.083 0.917 39 H 0.081 0.919 40 H 0.114 0.886 41 H 0.099 0.901 42 H 0.077 0.923 43 H 0.075 0.925 44 H 0.082 0.918 45 H 0.114 0.886 46 H 0.083 0.917 47 H 0.094 0.906 48 H 0.083 0.917 49 H 0.113 0.887 50 H 0.083 0.917 51 H 0.078 0.922 52 H 0.073 0.927 53 H 0.185 0.815 Dipole moment (debyes) X Y Z Total from point charges 5.819 1.126 7.370 9.458 hybrid contribution 0.421 -0.929 0.053 1.021 sum 6.240 0.197 7.423 9.700 Atomic orbital electron populations 1.21999 0.96546 1.00596 1.02152 1.21581 0.94303 0.86262 1.00598 1.43665 1.56922 1.11037 1.06384 1.19059 1.37034 0.99789 0.92197 0.86808 1.25142 0.93499 0.98366 0.94560 1.69591 1.38403 1.38521 1.03070 0.86681 0.75981 0.82894 0.78964 1.23399 1.22431 1.19157 1.20009 0.79418 0.88568 0.83178 1.90453 1.55961 1.70532 1.31227 1.20804 0.96698 0.94112 0.96210 1.21895 0.96760 0.99208 1.02137 1.21326 0.99111 0.97877 0.94464 1.22051 0.94399 1.04166 0.97737 1.21566 0.98088 1.00255 0.81162 1.46812 1.33200 1.41265 1.11317 1.17988 0.79050 0.78981 0.84017 1.90906 1.70495 1.66845 1.13614 1.86229 1.45491 1.54039 1.42921 1.21877 0.89229 0.87536 0.91205 1.22549 1.01978 1.00734 0.98890 1.21823 0.97190 1.00775 0.99656 1.22983 1.01538 0.98224 1.02537 1.22645 0.81415 0.95733 1.01487 0.92185 0.93209 0.92705 0.92056 0.91896 0.91716 0.89709 0.92970 0.92471 0.92409 0.91697 0.91901 0.88627 0.90107 0.92339 0.92525 0.91778 0.88554 0.91737 0.90606 0.91742 0.88727 0.91738 0.92229 0.92725 0.81502 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 14. 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 -0.15 -3.02 10.19 37.16 0.38 -2.64 16 2 C 0.10 2.18 4.43 -4.04 -0.02 2.16 16 3 N -0.46 -10.87 2.22 -114.81 -0.26 -11.13 16 4 C -0.36 -8.84 5.98 -14.93 -0.09 -8.93 16 5 H 0.11 2.87 4.58 -52.49 -0.24 2.63 16 6 C 0.09 2.45 4.30 -17.47 -0.08 2.38 16 7 N -0.86 -23.73 13.96 55.50 0.77 -22.95 16 8 Si 0.92 22.98 18.84 -169.99 -3.20 19.77 16 9 H -0.30 -7.46 6.70 56.52 0.38 -7.09 16 10 H -0.30 -7.46 6.83 56.52 0.39 -7.07 16 11 H -0.27 -6.76 5.86 56.52 0.33 -6.43 16 12 C 0.50 11.25 5.73 -10.98 -0.06 11.19 16 13 O -0.60 -14.41 13.50 5.55 0.07 -14.34 16 14 C -0.07 -1.41 0.50 -155.54 -0.08 -1.49 16 15 C -0.14 -2.42 8.25 37.16 0.31 -2.12 16 16 C -0.09 -1.47 4.30 -26.69 -0.11 -1.59 16 17 C -0.15 -2.39 5.75 -26.83 -0.15 -2.54 16 18 C 0.11 1.80 6.43 -3.93 -0.03 1.78 16 19 N -0.59 -11.38 2.69 -178.82 -0.48 -11.86 16 20 C 0.65 13.62 7.74 54.05 0.42 14.04 16 21 O -0.53 -12.49 7.98 -19.28 -0.15 -12.65 16 22 O -0.37 -7.03 8.52 -40.32 -0.34 -7.37 16 23 C 0.14 2.32 1.13 -90.62 -0.10 2.22 16 24 C -0.18 -2.94 8.33 37.16 0.31 -2.63 16 25 C -0.14 -1.71 8.85 37.15 0.33 -1.38 16 26 C -0.20 -3.67 7.18 37.16 0.27 -3.40 16 27 C 0.11 2.11 4.72 -3.71 -0.02 2.10 16 28 H 0.06 1.17 8.14 -51.93 -0.42 0.75 16 29 H 0.05 0.84 8.14 -51.93 -0.42 0.41 16 30 H 0.05 1.08 8.14 -51.93 -0.42 0.65 16 31 H 0.06 1.47 2.86 -51.93 -0.15 1.32 16 32 H 0.06 1.46 7.53 -51.93 -0.39 1.07 16 33 H 0.27 7.28 8.31 -40.82 -0.34 6.94 16 34 H 0.08 1.62 5.35 -51.93 -0.28 1.35 16 35 H 0.05 0.83 8.09 -51.93 -0.42 0.41 16 36 H 0.06 0.84 8.05 -51.93 -0.42 0.42 16 37 H 0.06 0.81 8.14 -51.93 -0.42 0.39 16 38 H 0.06 1.08 8.07 -51.92 -0.42 0.67 16 39 H 0.06 0.86 8.14 -51.93 -0.42 0.43 16 40 H 0.10 1.93 5.62 -51.93 -0.29 1.64 16 41 H 0.08 1.26 6.92 -51.93 -0.36 0.90 16 42 H 0.06 0.80 8.14 -51.93 -0.42 0.38 16 43 H 0.06 0.81 8.14 -51.93 -0.42 0.39 16 44 H 0.06 0.88 8.14 -51.93 -0.42 0.45 16 45 H 0.10 1.87 5.73 -51.93 -0.30 1.57 16 46 H 0.06 0.79 8.14 -51.93 -0.42 0.37 16 47 H 0.08 0.79 8.14 -51.93 -0.42 0.36 16 48 H 0.06 0.73 8.14 -51.93 -0.42 0.30 16 49 H 0.09 2.11 1.51 -51.93 -0.08 2.03 16 50 H 0.06 1.03 8.14 -51.92 -0.42 0.60 16 51 H 0.06 1.11 8.03 -51.93 -0.42 0.69 16 52 H 0.05 0.96 8.09 -51.93 -0.42 0.54 16 53 H 0.17 3.91 3.10 -51.93 -0.16 3.75 16 LS Contribution 370.47 15.07 5.58 5.58 Total: -1.00 -29.57 370.47 -5.39 -34.97 By element: Atomic # 1 Polarization: 19.50 SS G_CDS: -8.66 Total: 10.84 kcal Atomic # 6 Polarization: 7.87 SS G_CDS: 1.27 Total: 9.14 kcal Atomic # 7 Polarization: -45.98 SS G_CDS: 0.04 Total: -45.94 kcal Atomic # 8 Polarization: -33.94 SS G_CDS: -0.42 Total: -34.36 kcal Atomic # 14 Polarization: 22.98 SS G_CDS: -3.20 Total: 19.77 kcal Total LS contribution 5.58 Total: 5.58 kcal Total: -29.57 -5.39 -34.97 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. ZINC000367043749.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 -44.831 kcal (2) G-P(sol) polarization free energy of solvation -29.575 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -74.406 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -5.390 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -34.965 kcal (6) G-S(sol) free energy of system = (1) + (5) -79.796 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.71 seconds