Wall clock time and date at job start Tue Mar 31 2020 21:40:07 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 1.31001 * 1 3 3 C 1.50697 * 119.99938 * 2 1 4 4 C 1.53006 * 109.46858 * 120.39655 * 3 2 1 5 5 C 1.50699 * 109.54020 * 304.89480 * 4 3 2 6 6 O 1.21284 * 119.99964 * 126.55619 * 5 4 3 7 7 N 1.34773 * 120.00050 * 306.54912 * 5 4 3 8 8 C 1.46924 * 120.63085 * 354.97954 * 7 5 4 9 9 C 1.53195 * 108.77284 * 233.60504 * 8 7 5 10 10 C 1.53038 * 109.31640 * 305.36703 * 9 8 7 11 11 H 1.08995 * 109.46193 * 181.39116 * 10 9 8 12 12 N 1.46509 * 109.45581 * 301.34343 * 10 9 8 13 13 C 1.36930 * 120.00001 * 275.06720 * 12 10 9 14 14 H 1.08003 * 120.00189 * 0.02562 * 13 12 10 15 15 C 1.38816 * 119.99870 * 180.02562 * 13 12 10 16 16 N 1.31614 * 119.99846 * 0.02562 * 15 13 12 17 17 Si 1.86809 * 119.99907 * 179.97438 * 15 13 12 18 18 H 1.48498 * 109.46662 * 90.00117 * 17 15 13 19 19 H 1.48497 * 109.46863 * 209.99907 * 17 15 13 20 20 H 1.48502 * 109.46953 * 329.99998 * 17 15 13 21 21 C 1.53038 * 109.53946 * 61.36157 * 10 9 8 22 22 H 1.08998 * 109.49416 * 58.61975 * 21 10 9 23 23 C 1.52995 * 109.49830 * 178.68491 * 21 10 9 24 24 C 1.46931 * 120.62925 * 174.97541 * 7 5 4 25 25 C 1.53172 * 109.61557 * 65.11605 * 4 3 2 26 26 C 1.53099 * 109.16517 * 176.89023 * 25 4 3 27 27 O 1.42901 * 109.41195 * 302.39837 * 26 25 4 28 28 C 1.42900 * 114.10471 * 61.15478 * 27 26 25 29 29 C 1.53099 * 109.41155 * 298.83998 * 28 27 26 30 30 H 1.07998 * 120.00618 * 185.01509 * 1 2 3 31 31 H 1.08006 * 119.99783 * 5.02395 * 1 2 3 32 32 H 1.08000 * 119.99366 * 179.97438 * 2 1 3 33 33 H 1.08995 * 109.47282 * 0.39455 * 3 2 1 34 34 H 1.09000 * 109.46665 * 240.39087 * 3 2 1 35 35 H 1.09002 * 109.58939 * 113.82211 * 8 7 5 36 36 H 1.08993 * 109.70230 * 353.46488 * 8 7 5 37 37 H 1.09003 * 109.49740 * 185.40937 * 9 8 7 38 38 H 1.09002 * 109.52446 * 65.33402 * 9 8 7 39 39 H 0.96994 * 119.99638 * 95.06945 * 12 10 9 40 40 H 0.97009 * 119.99930 * 180.02562 * 16 15 13 41 41 H 1.08999 * 109.47281 * 59.99896 * 23 21 10 42 42 H 1.09000 * 109.47324 * 300.00201 * 23 21 10 43 43 H 1.08997 * 109.47659 * 180.02562 * 23 21 10 44 44 H 1.08997 * 109.58711 * 6.61100 * 24 7 5 45 45 H 1.08996 * 109.58428 * 246.17927 * 24 7 5 46 46 H 1.09000 * 109.52513 * 296.79483 * 25 4 3 47 47 H 1.08996 * 109.52437 * 56.98639 * 25 4 3 48 48 H 1.08996 * 109.48054 * 182.40685 * 26 25 4 49 49 H 1.09002 * 109.47316 * 62.37378 * 26 25 4 50 50 H 1.08997 * 109.48126 * 178.86001 * 28 27 26 51 51 H 1.09002 * 109.48152 * 58.82231 * 28 27 26 52 52 H 1.08997 * 109.52568 * 297.70559 * 29 28 27 53 53 H 1.08998 * 109.51853 * 177.51122 * 29 28 27 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 1.3100 0.0000 0.0000 3 6 2.0635 1.3051 0.0000 4 6 2.9506 1.3818 1.2443 5 6 2.1084 1.1775 2.4771 6 8 2.4138 0.3271 3.2862 7 7 1.0158 1.9399 2.6808 8 6 0.6940 3.0457 1.7685 9 6 0.5177 4.3269 2.5897 10 6 -0.5277 4.0884 3.6817 11 1 -0.6730 5.0059 4.2518 12 7 -1.7959 3.6914 3.0649 13 6 -2.6691 4.6473 2.6189 14 1 -2.4228 5.6938 2.7214 15 6 -3.8710 4.2711 2.0349 16 7 -4.1714 2.9958 1.9104 17 14 -5.0626 5.5751 1.4271 18 1 -4.7610 5.8989 0.0096 19 1 -6.4526 5.0633 1.5331 20 1 -4.9213 6.7994 2.2556 21 6 -0.0460 2.9774 4.6174 22 1 0.9095 3.2617 5.0581 23 6 -1.0765 2.7623 5.7276 24 6 0.1238 1.6809 3.8193 25 6 4.0289 0.2962 1.1747 26 6 4.9571 0.4314 2.3848 27 8 5.5290 1.7409 2.4007 28 6 4.5706 2.7949 2.5124 29 6 3.6270 2.7546 1.3074 30 1 -0.5401 -0.9317 0.0818 31 1 -0.5400 0.9318 -0.0819 32 1 1.8499 -0.9354 0.0004 33 1 1.3552 2.1335 0.0071 34 1 2.6848 1.3658 -0.8935 35 1 -0.2307 2.8229 1.2360 36 1 1.5048 3.1792 1.0525 37 1 0.1847 5.1342 1.9373 38 1 1.4680 4.5988 3.0490 39 1 -2.0169 2.7516 2.9725 40 1 -5.0111 2.7329 1.5020 41 1 -2.0316 2.4769 5.2866 42 1 -1.1992 3.6858 6.2935 43 1 -0.7329 1.9712 6.3941 44 1 0.5603 0.9131 4.4581 45 1 -0.8472 1.3468 3.4540 46 1 3.5576 -0.6866 1.1852 47 1 4.6063 0.4145 0.2579 48 1 5.7517 -0.3117 2.3182 49 1 4.3865 0.2728 3.2999 50 1 5.0870 3.7545 2.5378 51 1 3.9951 2.6673 3.4293 52 1 4.1963 2.9226 0.3932 53 1 2.8683 3.5301 1.4129 RHF calculation, no. of doubly occupied orbitals= 65 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 ZINC001715426973.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 21:40:07 Heat of formation + Delta-G solvation = -37.285915 kcal Electronic energy + Delta-G solvation = -32838.953449 eV Core-core repulsion = 28904.830403 eV Total energy + Delta-G solvation = -3934.123046 eV No. of doubly occupied orbitals = 65 Molecular weight (most abundant/longest-lived isotopes) = 336.220 amu Computer time = 1.11 seconds Orbital eigenvalues (eV) -41.33010 -38.80258 -37.37443 -36.13091 -34.22204 -33.01398 -32.60158 -31.43037 -31.02922 -29.23273 -27.81401 -26.31628 -25.37242 -23.84612 -23.62457 -23.09322 -21.70574 -21.49620 -19.68265 -19.08840 -18.14724 -17.36480 -16.47787 -16.25453 -16.03859 -15.63427 -15.34771 -14.98787 -14.67779 -14.49900 -14.21280 -14.13191 -13.71430 -13.65248 -13.46057 -13.29922 -13.02406 -12.62692 -12.47735 -12.33192 -12.23356 -11.98111 -11.63495 -11.59312 -11.37126 -11.33991 -11.18786 -11.10123 -10.93484 -10.81032 -10.59176 -10.52963 -10.49568 -10.22122 -10.11431 -9.86442 -9.58718 -9.49660 -9.31433 -9.01709 -8.94435 -8.18561 -7.01228 -5.82897 -3.11158 2.40563 2.83965 3.27396 3.37998 3.44483 3.45695 3.88093 4.38052 4.46522 4.53850 4.69140 4.91781 4.92417 5.11314 5.14378 5.17515 5.24929 5.31521 5.34403 5.44180 5.48664 5.49886 5.55774 5.61599 5.62373 5.68889 5.71026 5.75163 5.81597 5.84152 5.91584 5.99769 6.01422 6.04403 6.05610 6.14492 6.17258 6.24477 6.28895 6.38988 6.48386 6.62103 6.65424 6.74787 6.78102 6.88446 6.90652 6.99347 7.20009 7.64922 7.75259 8.35501 8.42505 9.47485 10.04143 10.39478 11.39284 Molecular weight = 336.22amu Principal moments of inertia in cm(-1) A = 0.015446 B = 0.004000 C = 0.003727 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1812.273437 B = 6997.961864 C = 7511.413891 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.169 4.169 2 C -0.170 4.170 3 C -0.098 4.098 4 C -0.070 4.070 5 C 0.529 3.471 6 O -0.552 6.552 7 N -0.592 5.592 8 C 0.094 3.906 9 C -0.152 4.152 10 C 0.179 3.821 11 H 0.050 0.950 12 N -0.717 5.717 13 C -0.238 4.238 14 H 0.069 0.931 15 C -0.010 4.010 16 N -0.931 5.931 17 Si 0.902 3.098 18 H -0.291 1.291 19 H -0.293 1.293 20 H -0.283 1.283 21 C -0.107 4.107 22 H 0.064 0.936 23 C -0.137 4.137 24 C 0.120 3.880 25 C -0.125 4.125 26 C 0.046 3.954 27 O -0.386 6.386 28 C 0.062 3.938 29 C -0.159 4.159 30 H 0.095 0.905 31 H 0.102 0.898 32 H 0.104 0.896 33 H 0.091 0.909 34 H 0.077 0.923 35 H 0.084 0.916 36 H 0.090 0.910 37 H 0.074 0.926 38 H 0.048 0.952 39 H 0.384 0.616 40 H 0.255 0.745 41 H 0.070 0.930 42 H 0.052 0.948 43 H 0.042 0.958 44 H 0.082 0.918 45 H 0.074 0.926 46 H 0.079 0.921 47 H 0.072 0.928 48 H 0.086 0.914 49 H 0.083 0.917 50 H 0.094 0.906 51 H 0.050 0.950 52 H 0.082 0.918 53 H 0.093 0.907 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 15.572 -2.886 -1.577 15.915 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 -0.205 4.205 2 C -0.188 4.188 3 C -0.135 4.135 4 C -0.073 4.073 5 C 0.317 3.683 6 O -0.431 6.431 7 N -0.323 5.323 8 C -0.028 4.028 9 C -0.193 4.193 10 C 0.069 3.931 11 H 0.068 0.932 12 N -0.360 5.360 13 C -0.369 4.369 14 H 0.087 0.913 15 C -0.206 4.206 16 N -0.579 5.579 17 Si 0.734 3.266 18 H -0.218 1.218 19 H -0.219 1.219 20 H -0.209 1.209 21 C -0.127 4.127 22 H 0.082 0.918 23 C -0.195 4.195 24 C -0.003 4.003 25 C -0.163 4.163 26 C -0.030 4.030 27 O -0.305 6.305 28 C -0.015 4.015 29 C -0.196 4.196 30 H 0.114 0.886 31 H 0.121 0.879 32 H 0.122 0.878 33 H 0.109 0.891 34 H 0.096 0.904 35 H 0.102 0.898 36 H 0.108 0.892 37 H 0.092 0.908 38 H 0.066 0.934 39 H 0.219 0.781 40 H 0.064 0.936 41 H 0.089 0.911 42 H 0.071 0.929 43 H 0.062 0.938 44 H 0.100 0.900 45 H 0.092 0.908 46 H 0.097 0.903 47 H 0.091 0.909 48 H 0.104 0.896 49 H 0.101 0.899 50 H 0.112 0.888 51 H 0.068 0.932 52 H 0.101 0.899 53 H 0.111 0.889 Dipole moment (debyes) X Y Z Total from point charges 15.789 -3.149 -1.194 16.144 hybrid contribution -1.292 0.392 -0.572 1.467 sum 14.497 -2.757 -1.766 14.862 Atomic orbital electron populations 1.23957 0.95775 1.02480 0.98305 1.22729 0.95963 0.97743 1.02386 1.21206 0.98662 0.97483 0.96101 1.20779 0.95249 0.97200 0.94118 1.20249 0.80546 0.80771 0.86687 1.90564 1.70382 1.35343 1.46842 1.47966 1.24520 1.31682 1.28084 1.22336 1.01930 0.86259 0.92282 1.22567 0.99465 0.96914 1.00381 1.20194 0.86658 0.95033 0.91224 0.93235 1.42462 1.15875 1.06564 1.71086 1.19208 0.97296 0.88805 1.31584 0.91322 1.24680 0.98122 0.95854 1.01946 1.69645 1.24589 1.13801 1.49907 0.86266 0.80875 0.80842 0.78632 1.21847 1.21901 1.20874 1.21688 0.98710 0.96049 0.96291 0.91779 1.21662 0.99883 1.00764 0.97184 1.21623 0.93702 0.97514 0.87429 1.22012 0.96062 0.98653 0.99568 1.22925 0.96962 0.83958 0.99181 1.87865 1.33229 1.14795 1.94633 1.22519 0.91218 0.91177 0.96562 1.22609 1.00025 0.96122 1.00848 0.88648 0.87926 0.87769 0.89050 0.90431 0.89805 0.89198 0.90777 0.93360 0.78081 0.93554 0.91076 0.92870 0.93841 0.89981 0.90790 0.90285 0.90902 0.89557 0.89904 0.88794 0.93197 0.89899 0.88868 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 -0.17 -2.32 14.32 29.01 0.42 -1.91 16 2 C -0.17 -2.14 8.05 -36.03 -0.29 -2.43 16 3 C -0.10 -1.11 4.33 -27.88 -0.12 -1.24 16 4 C -0.07 -0.85 0.28 -155.48 -0.04 -0.89 16 5 C 0.53 7.91 4.33 -10.99 -0.05 7.86 16 6 O -0.55 -9.67 13.07 5.55 0.07 -9.60 16 7 N -0.59 -8.92 2.96 -172.77 -0.51 -9.44 16 8 C 0.09 1.37 3.78 -3.71 -0.01 1.36 16 9 C -0.15 -2.34 5.64 -26.61 -0.15 -2.49 16 10 C 0.18 3.20 2.53 -67.89 -0.17 3.02 16 11 H 0.05 0.93 8.08 -51.93 -0.42 0.51 16 12 N -0.72 -15.80 3.64 -53.38 -0.19 -16.00 16 13 C -0.24 -6.00 9.93 -15.06 -0.15 -6.15 16 14 H 0.07 1.71 7.83 -52.48 -0.41 1.30 16 15 C -0.01 -0.26 5.50 -17.43 -0.10 -0.36 16 16 N -0.93 -26.27 13.06 55.49 0.72 -25.55 16 17 Si 0.90 21.31 29.55 -169.99 -5.02 16.29 16 18 H -0.29 -6.87 7.11 56.52 0.40 -6.47 16 19 H -0.29 -7.08 7.11 56.52 0.40 -6.68 16 20 H -0.28 -6.56 7.11 56.52 0.40 -6.16 16 21 C -0.11 -1.71 2.67 -90.50 -0.24 -1.95 16 22 H 0.06 0.97 8.14 -51.93 -0.42 0.55 16 23 C -0.14 -2.17 9.05 37.15 0.34 -1.84 16 24 C 0.12 1.96 5.43 -3.71 -0.02 1.94 16 25 C -0.12 -1.45 4.34 -26.59 -0.12 -1.57 16 26 C 0.05 0.58 6.56 37.21 0.24 0.82 16 27 O -0.39 -5.11 10.76 -35.23 -0.38 -5.49 16 28 C 0.06 0.73 6.62 37.21 0.25 0.98 16 29 C -0.16 -1.71 4.62 -26.59 -0.12 -1.83 16 30 H 0.10 1.26 8.06 -52.49 -0.42 0.84 16 31 H 0.10 1.55 7.56 -52.48 -0.40 1.16 16 32 H 0.10 1.24 7.20 -52.49 -0.38 0.86 16 33 H 0.09 1.09 4.21 -51.93 -0.22 0.87 16 34 H 0.08 0.76 8.14 -51.93 -0.42 0.33 16 35 H 0.08 1.47 7.40 -51.93 -0.38 1.09 16 36 H 0.09 1.11 2.48 -51.93 -0.13 0.98 16 37 H 0.07 1.20 8.14 -51.93 -0.42 0.78 16 38 H 0.05 0.66 8.14 -51.93 -0.42 0.23 16 39 H 0.38 9.12 5.92 -40.82 -0.24 8.88 16 40 H 0.25 7.08 8.31 -40.82 -0.34 6.74 16 41 H 0.07 1.31 7.54 -51.93 -0.39 0.92 16 42 H 0.05 0.82 8.14 -51.93 -0.42 0.39 16 43 H 0.04 0.61 8.14 -51.93 -0.42 0.19 16 44 H 0.08 1.38 7.00 -51.93 -0.36 1.02 16 45 H 0.07 1.36 6.64 -51.93 -0.34 1.02 16 46 H 0.08 0.95 6.93 -51.93 -0.36 0.59 16 47 H 0.07 0.75 8.14 -51.93 -0.42 0.32 16 48 H 0.09 0.93 8.14 -51.93 -0.42 0.51 16 49 H 0.08 1.23 5.58 -51.93 -0.29 0.94 16 50 H 0.09 0.92 8.14 -51.93 -0.42 0.50 16 51 H 0.05 0.66 7.38 -51.93 -0.38 0.28 16 52 H 0.08 0.79 8.14 -51.93 -0.42 0.36 16 53 H 0.09 0.98 4.94 -51.93 -0.26 0.73 16 LS Contribution 386.81 15.07 5.83 5.83 Total: -1.00 -28.48 386.81 -8.58 -37.06 By element: Atomic # 1 Polarization: 22.31 SS G_CDS: -8.75 Total: 13.56 kcal Atomic # 6 Polarization: -6.32 SS G_CDS: -0.34 Total: -6.66 kcal Atomic # 7 Polarization: -51.00 SS G_CDS: 0.02 Total: -50.98 kcal Atomic # 8 Polarization: -14.78 SS G_CDS: -0.31 Total: -15.09 kcal Atomic # 14 Polarization: 21.31 SS G_CDS: -5.02 Total: 16.29 kcal Total LS contribution 5.83 Total: 5.83 kcal Total: -28.48 -8.58 -37.06 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. ZINC001715426973.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 -0.228 kcal (2) G-P(sol) polarization free energy of solvation -28.481 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -28.708 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.578 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -37.058 kcal (6) G-S(sol) free energy of system = (1) + (5) -37.286 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.11 seconds