Wall clock time and date at job start Wed Apr 1 2020 05:31:20 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 1.53003 * 1 3 3 H 1.09009 * 109.47032 * 2 1 4 4 C 1.52992 * 109.47545 * 240.00346 * 2 1 3 5 5 C 1.52999 * 109.47682 * 175.00152 * 4 2 1 6 6 H 1.09004 * 109.46931 * 304.99705 * 5 4 2 7 7 C 1.53003 * 109.47273 * 184.99938 * 5 4 2 8 8 N 1.46492 * 109.47238 * 64.99531 * 5 4 2 9 9 C 1.36943 * 120.00115 * 204.72757 * 8 5 4 10 10 H 1.07996 * 119.99582 * 0.27955 * 9 8 5 11 11 C 1.38807 * 120.00009 * 180.27504 * 9 8 5 12 12 N 1.31617 * 120.00171 * 180.02562 * 11 9 8 13 13 Si 1.86803 * 120.00178 * 0.02562 * 11 9 8 14 14 H 1.48507 * 109.47261 * 89.99955 * 13 11 9 15 15 H 1.48500 * 109.47230 * 209.99755 * 13 11 9 16 16 H 1.48505 * 109.46878 * 329.99909 * 13 11 9 17 17 N 1.46497 * 109.47261 * 119.99863 * 2 1 3 18 18 C 1.34775 * 120.00180 * 275.00080 * 17 2 1 19 19 O 1.21288 * 120.00051 * 0.02562 * 18 17 2 20 20 C 1.50704 * 120.00190 * 179.97438 * 18 17 2 21 21 C 1.53122 * 109.52439 * 299.87801 * 20 18 17 22 22 C 1.53039 * 109.27198 * 182.50107 * 21 20 18 23 23 N 1.46846 * 109.58039 * 59.08649 * 22 21 20 24 24 C 1.46890 * 111.00350 * 174.19191 * 23 22 21 25 25 C 1.53005 * 109.47013 * 200.99547 * 24 23 22 26 26 F 1.39903 * 109.46542 * 294.19022 * 25 24 23 27 27 F 1.39893 * 109.47289 * 54.19169 * 25 24 23 28 28 C 1.46847 * 111.19333 * 298.28909 * 23 22 21 29 29 C 1.53035 * 109.52841 * 61.73824 * 28 23 22 30 30 H 1.08998 * 109.46685 * 59.99816 * 1 2 3 31 31 H 1.09000 * 109.46894 * 179.97438 * 1 2 3 32 32 H 1.09000 * 109.46965 * 300.00251 * 1 2 3 33 33 H 1.09001 * 109.47670 * 54.99338 * 4 2 1 34 34 H 1.09007 * 109.47280 * 295.00058 * 4 2 1 35 35 H 1.09004 * 109.46953 * 299.99754 * 7 5 4 36 36 H 1.08995 * 109.47049 * 59.99753 * 7 5 4 37 37 H 1.09001 * 109.47137 * 179.97438 * 7 5 4 38 38 H 0.97002 * 120.00251 * 25.00388 * 8 5 4 39 39 H 0.97001 * 120.00570 * 180.02562 * 12 11 9 40 40 H 0.97001 * 119.99867 * 95.00208 * 17 2 1 41 41 H 1.09001 * 109.51579 * 60.00290 * 20 18 17 42 42 H 1.08999 * 109.50353 * 302.37970 * 21 20 18 43 43 H 1.08995 * 109.49959 * 62.49771 * 21 20 18 44 44 H 1.09001 * 109.41149 * 299.06157 * 22 21 20 45 45 H 1.09004 * 109.45060 * 179.12720 * 22 21 20 46 46 H 1.09004 * 109.47185 * 320.99088 * 24 23 22 47 47 H 1.08998 * 109.47533 * 80.98945 * 24 23 22 48 48 H 1.09005 * 109.47113 * 174.19465 * 25 24 23 49 49 H 1.09001 * 109.46193 * 301.71927 * 28 23 22 50 50 H 1.09003 * 109.45464 * 181.74657 * 28 23 22 51 51 H 1.08998 * 109.50999 * 180.87926 * 29 28 23 52 52 H 1.09000 * 109.50276 * 60.76014 * 29 28 23 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 1 1.8934 1.0278 0.0000 4 6 2.0401 -0.7211 -1.2492 5 6 3.5649 -0.6132 -1.3136 6 1 3.8572 0.4359 -1.2677 7 6 4.0646 -1.2249 -2.6240 8 7 4.1537 -1.3341 -0.1824 9 6 5.3968 -0.9891 0.2771 10 1 5.9411 -0.1827 -0.1917 11 6 5.9571 -1.6759 1.3453 12 7 7.1517 -1.3441 1.7873 13 14 5.0159 -3.0712 2.1557 14 1 5.3487 -4.3511 1.4799 15 1 5.3932 -3.1558 3.5894 16 1 3.5573 -2.8160 2.0419 17 7 2.0184 -0.6906 1.1961 18 6 2.1471 -0.0182 2.3571 19 8 1.8582 1.1585 2.4117 20 6 2.6490 -0.7287 3.5878 21 6 1.7028 -1.8816 3.9346 22 6 2.1829 -2.5598 5.2198 23 7 2.2116 -1.5792 6.3125 24 6 2.5354 -2.2253 7.5913 25 6 2.0590 -1.3402 8.7449 26 9 2.7939 -0.1498 8.7534 27 9 0.7009 -1.0488 8.5790 28 6 3.1500 -0.4877 6.0218 29 6 2.6981 0.2534 4.7614 30 1 -0.3632 0.5139 -0.8900 31 1 -0.3633 -1.0277 -0.0005 32 1 -0.3633 0.5139 0.8900 33 1 1.6055 -0.2617 -2.1370 34 1 1.7518 -1.7715 -1.2056 35 1 3.7724 -2.2740 -2.6700 36 1 3.6265 -0.6885 -3.4657 37 1 5.1509 -1.1476 -2.6701 38 1 3.6648 -2.0584 0.2387 39 1 7.5434 -1.8243 2.5335 40 1 2.2491 -1.6317 1.1526 41 1 3.6481 -1.1216 3.3994 42 1 0.6953 -1.4933 4.0835 43 1 1.6977 -2.6057 3.1200 44 1 3.1845 -2.9610 5.0654 45 1 1.5025 -3.3713 5.4780 46 1 2.0368 -3.1930 7.6461 47 1 3.6137 -2.3676 7.6638 48 1 2.2054 -1.8643 9.6894 49 1 4.1472 -0.8986 5.8637 50 1 3.1720 0.2057 6.8625 51 1 3.4033 1.0535 4.5371 52 1 1.7067 0.6762 4.9237 RHF calculation, no. of doubly occupied orbitals= 67 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) F: (AM1): M.J.S. DEWAR AND E. G. ZOEBISCH, THEOCHEM, 180, 1 (1988). 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 ZINC001135289212.mol2 52 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 05:31:20 Heat of formation + Delta-G solvation = -128.388972 kcal Electronic energy + Delta-G solvation = -33671.635578 eV Core-core repulsion = 29148.824999 eV Total energy + Delta-G solvation = -4522.810579 eV No. of doubly occupied orbitals = 67 Molecular weight (most abundant/longest-lived isotopes) = 347.213 amu Computer time = 1.05 seconds Orbital eigenvalues (eV) -48.99310 -46.98803 -39.99466 -38.44723 -36.90524 -34.34227 -33.88682 -32.28678 -31.05413 -30.58957 -29.38480 -28.91876 -26.42352 -24.91503 -23.39683 -23.14611 -22.36269 -21.26060 -20.52862 -20.00346 -19.26683 -17.78876 -17.60217 -17.39288 -16.71689 -16.49352 -16.12939 -15.32700 -15.01721 -14.81847 -14.61631 -14.41403 -14.12848 -13.94436 -13.60658 -13.53160 -13.35335 -13.32881 -13.23574 -12.71326 -12.67202 -12.53730 -12.39506 -12.29826 -12.08421 -12.02433 -11.93440 -11.76384 -11.50980 -11.20389 -11.11986 -11.05406 -10.80420 -10.72035 -10.56297 -10.40232 -10.21475 -10.18208 -9.99652 -9.65428 -9.15955 -9.03050 -8.49350 -8.47219 -7.29820 -5.82465 -3.16616 3.04172 3.17993 3.24960 3.30316 3.50418 3.71166 3.77856 4.10083 4.33149 4.44901 4.72482 4.80321 4.88900 4.97695 5.05585 5.17477 5.20263 5.30105 5.31414 5.34381 5.45736 5.47277 5.51274 5.55263 5.66868 5.74004 5.76825 5.78549 5.86289 5.89681 5.90688 6.03393 6.04806 6.13247 6.17362 6.28389 6.34548 6.36602 6.39929 6.49181 6.58062 6.77387 6.83918 6.94944 6.96360 7.06613 7.93606 8.05892 8.35552 8.80763 9.13175 9.84978 10.05314 11.36263 Molecular weight = 347.21amu Principal moments of inertia in cm(-1) A = 0.012951 B = 0.003837 C = 0.003287 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2161.458202 B = 7296.269968 C = 8515.732707 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.161 4.161 2 C 0.147 3.853 3 H 0.086 0.914 4 C -0.136 4.136 5 C 0.175 3.825 6 H 0.057 0.943 7 C -0.164 4.164 8 N -0.741 5.741 9 C -0.230 4.230 10 H 0.090 0.910 11 C 0.002 3.998 12 N -0.932 5.932 13 Si 0.878 3.122 14 H -0.290 1.290 15 H -0.292 1.292 16 H -0.276 1.276 17 N -0.705 5.705 18 C 0.534 3.466 19 O -0.552 6.552 20 C -0.114 4.114 21 C -0.107 4.107 22 C 0.056 3.944 23 N -0.531 5.531 24 C -0.001 4.001 25 C 0.271 3.729 26 F -0.204 7.204 27 F -0.196 7.196 28 C 0.038 3.962 29 C -0.090 4.090 30 H 0.060 0.940 31 H 0.051 0.949 32 H 0.058 0.942 33 H 0.077 0.923 34 H 0.062 0.938 35 H 0.043 0.957 36 H 0.039 0.961 37 H 0.057 0.943 38 H 0.354 0.646 39 H 0.258 0.742 40 H 0.396 0.604 41 H 0.099 0.901 42 H 0.077 0.923 43 H 0.072 0.928 44 H 0.038 0.962 45 H 0.079 0.921 46 H 0.102 0.898 47 H 0.068 0.932 48 H 0.110 0.890 49 H 0.038 0.962 50 H 0.095 0.905 51 H 0.078 0.922 52 H 0.077 0.923 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -13.190 -4.399 7.596 15.844 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 -0.220 4.220 2 C 0.042 3.958 3 H 0.104 0.896 4 C -0.175 4.175 5 C 0.066 3.934 6 H 0.075 0.925 7 C -0.224 4.224 8 N -0.385 5.385 9 C -0.360 4.360 10 H 0.108 0.892 11 C -0.193 4.193 12 N -0.581 5.581 13 Si 0.711 3.289 14 H -0.217 1.217 15 H -0.219 1.219 16 H -0.203 1.203 17 N -0.358 5.358 18 C 0.321 3.679 19 O -0.431 6.431 20 C -0.135 4.135 21 C -0.145 4.145 22 C -0.071 4.071 23 N -0.256 5.256 24 C -0.131 4.131 25 C 0.217 3.783 26 F -0.185 7.185 27 F -0.177 7.177 28 C -0.089 4.089 29 C -0.128 4.128 30 H 0.079 0.921 31 H 0.070 0.930 32 H 0.077 0.923 33 H 0.096 0.904 34 H 0.080 0.920 35 H 0.063 0.937 36 H 0.058 0.942 37 H 0.076 0.924 38 H 0.187 0.813 39 H 0.068 0.932 40 H 0.234 0.766 41 H 0.117 0.883 42 H 0.096 0.904 43 H 0.091 0.909 44 H 0.056 0.944 45 H 0.097 0.903 46 H 0.120 0.880 47 H 0.086 0.914 48 H 0.127 0.873 49 H 0.057 0.943 50 H 0.113 0.887 51 H 0.096 0.904 52 H 0.095 0.905 Dipole moment (debyes) X Y Z Total from point charges -13.646 -3.204 7.688 15.987 hybrid contribution 0.581 -1.956 0.444 2.088 sum -13.066 -5.160 8.132 16.232 Atomic orbital electron populations 1.22196 0.96194 1.01512 1.02069 1.20840 0.92578 0.97934 0.84418 0.89579 1.22240 0.97731 1.00497 0.96982 1.20250 0.89483 0.96214 0.87462 0.92545 1.22397 1.02012 1.00142 0.97884 1.42820 1.19070 1.40206 1.36445 1.19083 0.91296 1.14353 1.11266 0.89240 1.24640 0.96516 0.99252 0.98902 1.69680 1.15812 1.43496 1.29107 0.86823 0.78968 0.83900 0.79193 1.21719 1.21917 1.20320 1.46127 1.66531 1.13983 1.09116 1.20228 0.76417 0.86906 0.84356 1.90623 1.50958 1.16009 1.85465 1.21460 1.01195 0.96927 0.93909 1.21598 0.99659 0.96768 0.96459 1.22127 1.00248 0.93917 0.90853 1.61937 1.51339 1.11135 1.01151 1.23225 1.01420 0.97951 0.90482 1.21951 0.73856 0.82368 1.00141 1.92915 1.77201 1.50998 1.97423 1.92994 1.33406 1.94305 1.97044 1.22557 0.93065 0.93590 0.99698 1.21328 1.03283 0.96926 0.91269 0.92057 0.92968 0.92321 0.90400 0.91976 0.93743 0.94197 0.92392 0.81277 0.93214 0.76613 0.88342 0.90434 0.90933 0.94358 0.90289 0.88002 0.91394 0.87292 0.94334 0.88662 0.90366 0.90452 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 -0.16 -2.08 9.48 37.16 0.35 -1.73 16 2 C 0.15 2.27 2.57 -67.93 -0.17 2.10 16 3 H 0.09 1.53 7.58 -51.92 -0.39 1.14 16 4 C -0.14 -1.91 4.43 -26.74 -0.12 -2.03 16 5 C 0.17 3.12 2.89 -67.93 -0.20 2.92 16 6 H 0.06 1.10 8.08 -51.93 -0.42 0.68 16 7 C -0.16 -2.69 9.49 37.16 0.35 -2.34 16 8 N -0.74 -15.81 3.65 -53.43 -0.19 -16.01 16 9 C -0.23 -6.08 10.41 -15.06 -0.16 -6.24 16 10 H 0.09 2.63 8.06 -52.49 -0.42 2.21 16 11 C 0.00 0.05 5.50 -17.43 -0.10 -0.04 16 12 N -0.93 -28.21 13.97 55.49 0.78 -27.44 16 13 Si 0.88 20.03 25.17 -169.99 -4.28 15.75 16 14 H -0.29 -6.86 7.11 56.52 0.40 -6.46 16 15 H -0.29 -6.83 7.11 56.52 0.40 -6.43 16 16 H -0.28 -5.31 3.62 56.52 0.20 -5.10 16 17 N -0.70 -12.07 3.70 -53.80 -0.20 -12.27 16 18 C 0.53 10.20 7.12 -10.98 -0.08 10.12 16 19 O -0.55 -11.97 15.64 5.55 0.09 -11.88 16 20 C -0.11 -2.00 2.19 -91.65 -0.20 -2.20 16 21 C -0.11 -1.54 5.10 -26.65 -0.14 -1.68 16 22 C 0.06 0.73 5.42 -3.83 -0.02 0.71 16 23 N -0.53 -6.98 4.40 -234.67 -1.03 -8.02 16 24 C 0.00 -0.01 5.38 -3.83 -0.02 -0.03 16 25 C 0.27 2.55 5.59 37.16 0.21 2.76 16 26 F -0.20 -2.43 14.68 2.25 0.03 -2.40 16 27 F -0.20 -2.37 17.15 2.25 0.04 -2.33 16 28 C 0.04 0.57 5.23 -3.83 -0.02 0.55 16 29 C -0.09 -1.52 4.68 -26.65 -0.12 -1.64 16 30 H 0.06 0.67 8.14 -51.93 -0.42 0.25 16 31 H 0.05 0.61 8.14 -51.93 -0.42 0.19 16 32 H 0.06 0.84 8.14 -51.93 -0.42 0.42 16 33 H 0.08 0.92 8.14 -51.93 -0.42 0.49 16 34 H 0.06 0.82 8.14 -51.93 -0.42 0.40 16 35 H 0.04 0.70 8.14 -51.93 -0.42 0.28 16 36 H 0.04 0.54 8.14 -51.93 -0.42 0.12 16 37 H 0.06 1.07 8.14 -51.93 -0.42 0.65 16 38 H 0.35 7.20 3.77 -40.82 -0.15 7.04 16 39 H 0.26 7.48 8.31 -40.82 -0.34 7.14 16 40 H 0.40 6.66 4.60 -40.82 -0.19 6.47 16 41 H 0.10 1.98 5.04 -51.93 -0.26 1.71 16 42 H 0.08 1.09 8.14 -51.93 -0.42 0.67 16 43 H 0.07 0.99 6.81 -51.93 -0.35 0.64 16 44 H 0.04 0.55 8.14 -51.93 -0.42 0.13 16 45 H 0.08 0.84 7.92 -51.93 -0.41 0.43 16 46 H 0.10 0.77 7.77 -51.93 -0.40 0.37 16 47 H 0.07 0.64 7.98 -51.93 -0.41 0.22 16 48 H 0.11 0.58 8.14 -51.93 -0.42 0.16 16 49 H 0.04 0.61 8.14 -51.93 -0.42 0.19 16 50 H 0.10 1.37 5.46 -51.93 -0.28 1.08 16 51 H 0.08 1.42 8.14 -51.93 -0.42 0.99 16 52 H 0.08 1.33 8.04 -51.93 -0.42 0.91 16 LS Contribution 396.98 15.07 5.98 5.98 Total: -1.00 -32.20 396.98 -8.17 -40.37 By element: Atomic # 1 Polarization: 25.96 SS G_CDS: -8.95 Total: 17.01 kcal Atomic # 6 Polarization: 1.66 SS G_CDS: -0.43 Total: 1.23 kcal Atomic # 7 Polarization: -63.08 SS G_CDS: -0.65 Total: -63.73 kcal Atomic # 8 Polarization: -11.97 SS G_CDS: 0.09 Total: -11.88 kcal Atomic # 9 Polarization: -4.80 SS G_CDS: 0.07 Total: -4.73 kcal Atomic # 14 Polarization: 20.03 SS G_CDS: -4.28 Total: 15.75 kcal Total LS contribution 5.98 Total: 5.98 kcal Total: -32.20 -8.17 -40.37 kcal The number of atoms in the molecule is 52 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. ZINC001135289212.mol2 52 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 -88.015 kcal (2) G-P(sol) polarization free energy of solvation -32.200 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -120.215 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.174 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -40.374 kcal (6) G-S(sol) free energy of system = (1) + (5) -128.389 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.06 seconds