Wall clock time and date at job start Tue Mar 31 2020 06:52:23 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 1.50706 * 1 3 3 C 1.38280 * 119.92816 * 2 1 4 4 C 1.38112 * 120.07081 * 179.97438 * 3 2 1 5 5 C 1.50695 * 120.03562 * 180.02562 * 4 3 2 6 6 C 1.38868 * 119.92589 * 0.02562 * 4 3 2 7 7 N 1.39931 * 120.06842 * 180.02562 * 6 4 3 8 8 C 1.46766 * 124.34858 * 89.99912 * 7 6 4 9 9 C 1.54480 * 105.47504 * 162.96062 * 8 7 6 10 10 C 1.54631 * 101.76379 * 25.41563 * 9 8 7 11 11 H 1.08997 * 110.48613 * 216.52254 * 10 9 8 12 12 N 1.46499 * 110.48598 * 93.87973 * 10 9 8 13 13 C 1.39987 * 120.00029 * 158.77565 * 12 10 9 14 14 C 1.40426 * 125.97532 * 359.71480 * 13 12 10 15 15 C 1.35250 * 107.86275 * 179.83406 * 14 13 12 16 16 N 1.34956 * 107.86154 * 0.42169 * 15 14 13 17 17 C 1.46502 * 125.96973 * 179.72835 * 16 15 14 18 18 C 1.50701 * 109.46812 * 124.98130 * 17 16 15 19 19 H 1.07994 * 120.00093 * 0.02562 * 18 17 16 20 20 C 1.37878 * 119.99941 * 179.97438 * 18 17 16 21 21 N 1.31519 * 119.99848 * 359.97438 * 20 18 17 22 22 Si 1.86801 * 120.00281 * 179.97438 * 20 18 17 23 23 H 1.48506 * 109.47062 * 89.99967 * 22 20 18 24 24 H 1.48492 * 109.47485 * 210.00348 * 22 20 18 25 25 H 1.48509 * 109.46950 * 330.00407 * 22 20 18 26 26 N 1.31229 * 125.97577 * 180.02562 * 13 12 10 27 27 C 1.34417 * 124.35339 * 269.97356 * 7 6 4 28 28 O 1.21294 * 124.93699 * 0.45229 * 27 7 6 29 29 C 1.38870 * 119.86362 * 0.27350 * 6 4 3 30 30 C 1.50701 * 120.03840 * 179.70794 * 29 6 4 31 31 C 1.38115 * 119.92562 * 359.42846 * 29 6 4 32 32 H 1.08992 * 109.47599 * 89.99675 * 1 2 3 33 33 H 1.08998 * 109.47073 * 210.00092 * 1 2 3 34 34 H 1.09004 * 109.47109 * 329.99786 * 1 2 3 35 35 H 1.08003 * 119.96766 * 359.97438 * 3 2 1 36 36 H 1.08998 * 109.47353 * 269.97787 * 5 4 3 37 37 H 1.09002 * 109.47252 * 29.98243 * 5 4 3 38 38 H 1.09002 * 109.47141 * 149.97747 * 5 4 3 39 39 H 1.09000 * 110.24445 * 281.96284 * 8 7 6 40 40 H 1.08996 * 110.24758 * 43.96015 * 8 7 6 41 41 H 1.08998 * 110.96675 * 143.53087 * 9 8 7 42 42 H 1.08998 * 110.96857 * 267.29572 * 9 8 7 43 43 H 0.97002 * 120.00191 * 338.77062 * 12 10 9 44 44 H 1.08000 * 126.07084 * 359.96213 * 14 13 12 45 45 H 1.07995 * 126.07100 * 180.13757 * 15 14 13 46 46 H 1.09010 * 109.47306 * 244.97743 * 17 16 15 47 47 H 1.08994 * 109.47397 * 4.97831 * 17 16 15 48 48 H 0.96998 * 119.99655 * 179.97438 * 21 20 18 49 49 H 1.09009 * 109.46924 * 90.00022 * 30 29 6 50 50 H 1.09001 * 109.46892 * 209.99817 * 30 29 6 51 51 H 1.08992 * 109.46948 * 329.99908 * 30 29 6 52 52 H 1.07997 * 119.96809 * 180.29973 * 31 29 6 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 1.5071 0.0000 0.0000 3 6 2.1970 1.1984 0.0000 4 6 3.5781 1.2018 0.0005 5 6 4.3291 2.5083 0.0011 6 6 4.2738 0.0000 0.0005 7 7 5.6732 0.0000 0.0016 8 6 6.5003 -0.0005 1.2140 9 6 7.9084 -0.4365 0.7520 10 6 7.8986 -0.0106 -0.7344 11 1 8.4417 -0.7343 -1.3422 12 7 8.4765 1.3267 -0.8885 13 6 8.9760 1.7345 -2.1310 14 6 8.9917 0.9660 -3.3062 15 6 9.5500 1.7150 -4.2843 16 7 9.8852 2.9087 -3.7512 17 6 10.5233 4.0197 -4.4616 18 6 9.6866 5.2632 -4.3042 19 1 8.7715 5.2294 -3.7318 20 6 10.0901 6.4443 -4.8900 21 7 11.2054 6.4858 -5.5858 22 14 9.0528 7.9856 -4.6955 23 1 9.4889 8.7262 -3.4844 24 1 9.2208 8.8496 -5.8914 25 1 7.6238 7.6061 -4.5558 26 7 9.5165 2.8997 -2.3999 27 6 6.4325 0.0000 -1.1075 28 8 6.0045 0.0079 -2.2424 29 6 3.5781 -1.2018 -0.0058 30 6 4.3292 -2.5083 -0.0124 31 6 2.1970 -1.1984 0.0000 32 1 -0.3634 0.0001 -1.0276 33 1 -0.3633 -0.8900 0.5138 34 1 -0.3633 0.8900 0.5139 35 1 1.6552 2.1328 -0.0004 36 1 4.5109 2.8234 -1.0264 37 1 3.7383 3.2668 0.5146 38 1 5.2814 2.3797 0.5156 39 1 6.5378 0.9998 1.6454 40 1 6.1048 -0.7106 1.9401 41 1 8.6825 0.0955 1.3051 42 1 8.0339 -1.5150 0.8480 43 1 8.5131 1.9296 -0.1295 44 1 8.6216 -0.0432 -3.4111 45 1 9.7048 1.4102 -5.3087 46 1 11.5158 4.1946 -4.0461 47 1 10.6107 3.7721 -5.5195 48 1 11.4891 7.3167 -5.9982 49 1 4.5102 -2.8285 1.0137 50 1 3.7387 -3.2641 -0.5302 51 1 5.2818 -2.3770 -0.5255 52 1 1.6552 -2.1327 0.0000 RHF calculation, no. of doubly occupied orbitals= 69 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 ZINC000190976437.mol2 52 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 06:52:23 Heat of formation + Delta-G solvation = 77.265721 kcal Electronic energy + Delta-G solvation = -33327.666235 eV Core-core repulsion = 29100.747808 eV Total energy + Delta-G solvation = -4226.918427 eV No. of doubly occupied orbitals = 69 Molecular weight (most abundant/longest-lived isotopes) = 368.195 amu Computer time = 1.21 seconds Orbital eigenvalues (eV) -41.28504 -40.11961 -39.27410 -36.56996 -35.49100 -33.80708 -33.74673 -33.00701 -31.22609 -30.02110 -29.13771 -28.20651 -27.10412 -26.92526 -26.49374 -25.98544 -22.87722 -22.30711 -21.52579 -21.09673 -20.01609 -19.85363 -19.35264 -17.52416 -17.07021 -16.49867 -16.39004 -16.09218 -15.35056 -15.12849 -14.99663 -14.54809 -14.44305 -14.31910 -14.11657 -13.74148 -13.65407 -13.59521 -13.42663 -13.28940 -13.21583 -12.97533 -12.88356 -12.73850 -12.66787 -12.27983 -12.11583 -11.96026 -11.79497 -11.68419 -11.53845 -11.45718 -11.41259 -11.29016 -10.96345 -10.81709 -10.47870 -10.17758 -9.80148 -9.54125 -9.21987 -9.00945 -8.78282 -8.62058 -8.55374 -7.85146 -7.02595 -6.17086 -4.21542 0.99086 1.14377 2.38554 2.78054 2.99061 3.27993 3.33269 3.34182 3.36572 3.40753 3.78310 4.15415 4.21042 4.35422 4.40184 4.49846 4.54162 4.57418 4.59740 4.76184 5.00385 5.04569 5.10592 5.17497 5.18336 5.25982 5.29809 5.31913 5.33820 5.41072 5.48840 5.50912 5.53388 5.59224 5.60054 5.63107 5.66887 5.87744 6.04089 6.09219 6.16393 6.31099 6.36714 6.40292 6.46196 6.56633 6.83178 6.86616 6.99192 7.06711 7.20186 7.59871 7.78199 7.94676 8.13345 8.20325 8.21030 8.82738 8.95492 9.43584 10.91206 Molecular weight = 368.20amu Principal moments of inertia in cm(-1) A = 0.011027 B = 0.002400 C = 0.002117 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2538.619642 B =11665.218848 C =13224.992994 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.114 4.114 2 C -0.075 4.075 3 C -0.123 4.123 4 C -0.063 4.063 5 C -0.114 4.114 6 C 0.136 3.864 7 N -0.577 5.577 8 C 0.105 3.895 9 C -0.140 4.140 10 C 0.149 3.851 11 H 0.112 0.888 12 N -0.706 5.706 13 C 0.301 3.699 14 C -0.316 4.316 15 C 0.065 3.935 16 N -0.327 5.327 17 C 0.260 3.740 18 C -0.523 4.523 19 H 0.068 0.932 20 C 0.061 3.939 21 N -0.897 5.897 22 Si 0.906 3.094 23 H -0.278 1.278 24 H -0.285 1.285 25 H -0.273 1.273 26 N -0.328 5.328 27 C 0.504 3.496 28 O -0.499 6.499 29 C -0.070 4.070 30 C -0.110 4.110 31 C -0.124 4.124 32 H 0.071 0.929 33 H 0.066 0.934 34 H 0.066 0.934 35 H 0.125 0.875 36 H 0.075 0.925 37 H 0.067 0.933 38 H 0.067 0.933 39 H 0.073 0.927 40 H 0.081 0.919 41 H 0.102 0.898 42 H 0.097 0.903 43 H 0.402 0.598 44 H 0.131 0.869 45 H 0.163 0.837 46 H 0.043 0.957 47 H 0.054 0.946 48 H 0.266 0.734 49 H 0.070 0.930 50 H 0.067 0.933 51 H 0.066 0.934 52 H 0.124 0.876 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -15.276 -19.117 16.978 29.784 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 -0.171 4.171 2 C -0.075 4.075 3 C -0.141 4.141 4 C -0.065 4.065 5 C -0.170 4.170 6 C 0.047 3.953 7 N -0.310 5.310 8 C -0.017 4.017 9 C -0.179 4.179 10 C 0.038 3.962 11 H 0.129 0.871 12 N -0.350 5.350 13 C 0.046 3.954 14 C -0.349 4.349 15 C -0.087 4.087 16 N -0.107 5.107 17 C 0.143 3.857 18 C -0.562 4.562 19 H 0.086 0.914 20 C -0.142 4.142 21 N -0.536 5.536 22 Si 0.734 3.266 23 H -0.204 1.204 24 H -0.210 1.210 25 H -0.198 1.198 26 N -0.159 5.159 27 C 0.289 3.711 28 O -0.369 6.369 29 C -0.071 4.071 30 C -0.166 4.166 31 C -0.143 4.143 32 H 0.090 0.910 33 H 0.085 0.915 34 H 0.085 0.915 35 H 0.143 0.857 36 H 0.093 0.907 37 H 0.086 0.914 38 H 0.085 0.915 39 H 0.092 0.908 40 H 0.099 0.901 41 H 0.121 0.879 42 H 0.116 0.884 43 H 0.237 0.763 44 H 0.149 0.851 45 H 0.180 0.820 46 H 0.060 0.940 47 H 0.071 0.929 48 H 0.076 0.924 49 H 0.089 0.911 50 H 0.086 0.914 51 H 0.085 0.915 52 H 0.142 0.858 Dipole moment (debyes) X Y Z Total from point charges -15.030 -17.858 16.487 28.577 hybrid contribution -0.834 0.406 -0.109 0.934 sum -15.865 -17.453 16.378 28.714 Atomic orbital electron populations 1.20796 0.91021 1.02738 1.02503 1.19930 0.96129 0.92967 0.98518 1.20804 0.92842 0.97820 1.02655 1.20161 0.93827 0.94976 0.97513 1.20757 0.99818 0.93321 1.03142 1.17022 0.81674 0.91927 1.04719 1.45516 1.02986 1.74613 1.07841 1.22152 0.90143 1.02237 0.87155 1.22936 0.96800 1.03288 0.94831 1.21221 0.90399 0.87295 0.97282 0.87051 1.42914 1.69069 1.14577 1.08455 1.19081 0.97189 0.92527 0.86607 1.20732 1.19128 1.02676 0.92403 1.22316 0.99876 0.87248 0.99231 1.48957 1.44335 1.12010 1.05430 1.19648 0.93375 0.81888 0.90820 1.21275 1.08606 0.93147 1.33156 0.91393 1.24941 0.95339 0.99104 0.94781 1.69924 1.22025 1.27720 1.33907 0.86351 0.80558 0.82087 0.77639 1.20390 1.21027 1.19754 1.77380 1.25055 1.17760 0.95750 1.21913 0.89751 0.75130 0.84264 1.90758 1.78335 1.46975 1.20836 1.20061 0.93788 0.94726 0.98537 1.20703 1.00292 0.93581 1.02071 1.20746 0.92776 0.97681 1.03084 0.91002 0.91515 0.91469 0.85726 0.90651 0.91413 0.91451 0.90844 0.90105 0.87927 0.88438 0.76251 0.85142 0.82015 0.93954 0.92860 0.92445 0.91138 0.91429 0.91530 0.85802 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 -0.11 -0.76 10.01 36.01 0.36 -0.40 16 2 C -0.08 -0.72 5.88 -104.59 -0.62 -1.34 16 3 C -0.12 -1.31 9.35 -39.61 -0.37 -1.68 16 4 C -0.06 -0.77 5.90 -104.44 -0.62 -1.39 16 5 C -0.11 -1.37 9.77 36.00 0.35 -1.02 16 6 C 0.14 1.65 5.34 -83.69 -0.45 1.20 16 7 N -0.58 -6.48 1.10 -112.27 -0.12 -6.61 16 8 C 0.11 0.77 7.06 -3.12 -0.02 0.75 16 9 C -0.14 -0.93 6.78 -25.10 -0.17 -1.10 16 10 C 0.15 1.74 3.22 -67.94 -0.22 1.52 16 11 H 0.11 1.29 7.26 -51.93 -0.38 0.91 16 12 N -0.71 -10.46 5.34 -53.58 -0.29 -10.74 16 13 C 0.30 6.01 8.16 -154.54 -1.26 4.75 16 14 C -0.32 -6.17 9.94 -39.82 -0.40 -6.57 16 15 C 0.06 1.33 11.43 -17.24 -0.20 1.13 16 16 N -0.33 -7.87 3.67 -62.56 -0.23 -8.10 16 17 C 0.26 6.85 6.26 -5.19 -0.03 6.82 16 18 C -0.52 -15.08 9.24 -34.44 -0.32 -15.40 16 19 H 0.07 2.05 7.81 -52.49 -0.41 1.64 16 20 C 0.06 1.72 5.46 -17.82 -0.10 1.62 16 21 N -0.90 -26.00 13.29 55.43 0.74 -25.27 16 22 Si 0.91 22.03 29.54 -169.99 -5.02 17.01 16 23 H -0.28 -6.67 7.11 56.52 0.40 -6.27 16 24 H -0.28 -6.74 7.11 56.52 0.40 -6.34 16 25 H -0.27 -6.65 7.11 56.52 0.40 -6.25 16 26 N -0.33 -7.78 12.42 31.41 0.39 -7.39 16 27 C 0.50 7.20 7.02 -10.86 -0.08 7.13 16 28 O -0.50 -9.58 17.71 5.55 0.10 -9.48 16 29 C -0.07 -0.75 5.90 -104.43 -0.62 -1.36 16 30 C -0.11 -0.93 9.77 36.01 0.35 -0.58 16 31 C -0.12 -1.19 9.35 -39.61 -0.37 -1.56 16 32 H 0.07 0.46 8.14 -51.93 -0.42 0.04 16 33 H 0.07 0.36 8.08 -51.93 -0.42 -0.06 16 34 H 0.07 0.39 8.08 -51.93 -0.42 -0.03 16 35 H 0.12 1.12 8.06 -52.48 -0.42 0.70 16 36 H 0.07 1.10 8.14 -51.93 -0.42 0.67 16 37 H 0.07 0.68 8.09 -51.93 -0.42 0.26 16 38 H 0.07 0.79 6.56 -51.93 -0.34 0.45 16 39 H 0.07 0.51 7.43 -51.93 -0.39 0.12 16 40 H 0.08 0.45 8.14 -51.93 -0.42 0.02 16 41 H 0.10 0.56 8.03 -51.93 -0.42 0.14 16 42 H 0.10 0.45 8.14 -51.93 -0.42 0.02 16 43 H 0.40 5.36 8.70 -40.82 -0.36 5.00 16 44 H 0.13 2.30 7.48 -52.49 -0.39 1.90 16 45 H 0.16 2.77 8.06 -52.49 -0.42 2.34 16 46 H 0.04 1.17 8.14 -51.92 -0.42 0.75 16 47 H 0.05 1.38 8.07 -51.93 -0.42 0.96 16 48 H 0.27 7.27 8.31 -40.82 -0.34 6.93 16 49 H 0.07 0.46 8.14 -51.92 -0.42 0.04 16 50 H 0.07 0.51 8.09 -51.93 -0.42 0.09 16 51 H 0.07 0.65 6.96 -51.93 -0.36 0.29 16 52 H 0.12 0.91 8.06 -52.49 -0.42 0.49 16 LS Contribution 432.19 15.07 6.51 6.51 Total: -1.00 -35.97 432.19 -10.76 -46.73 By element: Atomic # 1 Polarization: 12.89 SS G_CDS: -8.08 Total: 4.82 kcal Atomic # 6 Polarization: -2.72 SS G_CDS: -4.76 Total: -7.48 kcal Atomic # 7 Polarization: -58.60 SS G_CDS: 0.49 Total: -58.11 kcal Atomic # 8 Polarization: -9.58 SS G_CDS: 0.10 Total: -9.48 kcal Atomic # 14 Polarization: 22.03 SS G_CDS: -5.02 Total: 17.01 kcal Total LS contribution 6.51 Total: 6.51 kcal Total: -35.97 -10.76 -46.73 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. ZINC000190976437.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 123.996 kcal (2) G-P(sol) polarization free energy of solvation -35.970 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 88.026 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -10.760 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -46.730 kcal (6) G-S(sol) free energy of system = (1) + (5) 77.266 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.21 seconds