Wall clock time and date at job start Sat Apr 11 2020 06:11:02 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 1.52996 * 1 3 3 C 1.53005 * 109.47229 * 2 1 4 4 C 1.52996 * 109.47229 * 179.97438 * 3 2 1 5 5 H 1.09006 * 109.47217 * 54.99888 * 4 3 2 6 6 C 1.53000 * 109.47310 * 175.00072 * 4 3 2 7 7 N 1.46506 * 109.47193 * 295.00257 * 4 3 2 8 8 C 1.46761 * 124.34998 * 120.00085 * 7 4 3 9 9 C 1.54476 * 105.47099 * 162.98591 * 8 7 4 10 10 H 1.08999 * 110.96971 * 143.53436 * 9 8 7 11 11 C 1.50705 * 111.00050 * 267.28035 * 9 8 7 12 12 O 1.21281 * 119.99581 * 4.02810 * 11 9 8 13 13 N 1.34777 * 120.00214 * 184.03211 * 11 9 8 14 14 C 1.46498 * 119.99728 * 5.35485 * 13 11 9 15 15 C 1.50696 * 109.47419 * 84.50591 * 14 13 11 16 16 H 1.08002 * 120.00025 * 359.97438 * 15 14 13 17 17 C 1.37883 * 119.99994 * 179.97438 * 15 14 13 18 18 N 1.31513 * 120.00006 * 359.97438 * 17 15 14 19 19 Si 1.86799 * 119.99856 * 179.97438 * 17 15 14 20 20 H 1.48507 * 109.47020 * 60.00104 * 19 17 15 21 21 H 1.48501 * 109.47085 * 179.97438 * 19 17 15 22 22 H 1.48496 * 109.47375 * 300.00365 * 19 17 15 23 23 C 1.46497 * 119.99943 * 185.34934 * 13 11 9 24 24 C 1.53005 * 109.46878 * 90.00481 * 23 13 11 25 25 O 1.42897 * 109.47492 * 64.99395 * 24 23 13 26 26 C 1.42901 * 114.00112 * 180.02562 * 25 24 23 27 27 C 1.54624 * 101.76841 * 25.41020 * 9 8 7 28 28 C 1.34423 * 124.34274 * 299.99831 * 7 4 3 29 29 O 1.21275 * 124.94450 * 0.44157 * 28 7 4 30 30 H 1.09005 * 109.47487 * 59.99760 * 1 2 3 31 31 H 1.09000 * 109.47524 * 179.97438 * 1 2 3 32 32 H 1.08997 * 109.47136 * 300.00506 * 1 2 3 33 33 H 1.08998 * 109.46942 * 240.00011 * 2 1 3 34 34 H 1.08998 * 109.47160 * 119.99649 * 2 1 3 35 35 H 1.08996 * 109.46739 * 59.99801 * 3 2 1 36 36 H 1.08998 * 109.46763 * 299.99893 * 3 2 1 37 37 H 1.09000 * 109.47066 * 180.02562 * 6 4 3 38 38 H 1.09002 * 109.47155 * 300.00188 * 6 4 3 39 39 H 1.08996 * 109.47214 * 59.99825 * 6 4 3 40 40 H 1.08992 * 110.24951 * 43.98461 * 8 7 4 41 41 H 1.09002 * 110.24209 * 281.97832 * 8 7 4 42 42 H 1.09003 * 109.46901 * 204.50693 * 14 13 11 43 43 H 1.08997 * 109.47109 * 324.49840 * 14 13 11 44 44 H 0.96995 * 119.99641 * 179.97438 * 18 17 15 45 45 H 1.09002 * 109.46980 * 209.99570 * 23 13 11 46 46 H 1.08994 * 109.47542 * 330.00592 * 23 13 11 47 47 H 1.08997 * 109.47088 * 185.00173 * 24 23 13 48 48 H 1.08999 * 109.46858 * 304.99664 * 24 23 13 49 49 H 1.08996 * 109.47313 * 60.00057 * 26 25 24 50 50 H 1.08999 * 109.46709 * 180.02562 * 26 25 24 51 51 H 1.09001 * 109.46837 * 300.00042 * 26 25 24 52 52 H 1.09004 * 110.48603 * 93.88532 * 27 9 8 53 53 H 1.08999 * 110.49378 * 216.52297 * 27 9 8 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 6 2.0400 1.4425 0.0000 4 6 3.5700 1.4425 0.0006 5 1 3.9337 0.8529 -0.8410 6 6 4.0801 2.8795 -0.1251 7 7 4.0578 0.8589 1.2528 8 6 4.9050 -0.3367 1.3343 9 6 5.5111 -0.3161 2.7551 10 1 5.5948 -1.3254 3.1581 11 6 6.8494 0.3768 2.7614 12 8 7.2712 0.8900 1.7467 13 7 7.5775 0.4262 3.8945 14 6 7.1246 -0.2928 5.0879 15 6 7.5826 -1.7266 5.0147 16 1 8.1536 -2.0683 4.1640 17 6 7.2728 -2.6022 6.0337 18 7 6.5780 -2.1860 7.0698 19 14 7.8400 -4.3797 5.9426 20 1 9.3227 -4.4231 5.8706 21 1 7.3821 -5.1080 7.1530 22 1 7.2667 -5.0207 4.7320 23 6 8.8216 1.1986 3.9327 24 6 8.5179 2.6334 4.3687 25 8 8.0334 2.6303 5.7130 26 6 7.7174 3.9285 6.2200 27 6 4.4589 0.5058 3.5349 28 6 3.7869 1.3499 2.4745 29 8 3.1029 2.3268 2.6945 30 1 -0.3634 0.5139 -0.8900 31 1 -0.3634 -1.0276 -0.0005 32 1 -0.3633 0.5139 0.8899 33 1 1.8933 -0.5138 -0.8900 34 1 1.8933 -0.5138 0.8900 35 1 1.6766 1.9563 0.8900 36 1 1.6767 1.9563 -0.8900 37 1 5.1701 2.8794 -0.1251 38 1 3.7171 3.3137 -1.0566 39 1 3.7164 3.4691 0.7165 40 1 5.6961 -0.2902 0.5861 41 1 4.3040 -1.2351 1.1937 42 1 7.5447 0.1779 5.9768 43 1 6.0364 -0.2611 5.1400 44 1 6.3597 -2.8021 7.7865 45 1 9.5114 0.7416 4.6423 46 1 9.2739 1.2083 2.9410 47 1 9.4279 3.2307 4.3118 48 1 7.7612 3.0606 3.7108 49 1 6.9439 4.3822 5.6004 50 1 7.3572 3.8404 7.2450 51 1 8.6106 4.5530 6.2015 52 1 3.7351 -0.1554 4.0115 53 1 4.9436 1.1402 4.2770 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 ZINC000609136625.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 06:11:02 Heat of formation + Delta-G solvation = -129.106540 kcal Electronic energy + Delta-G solvation = -32351.046563 eV Core-core repulsion = 28222.485824 eV Total energy + Delta-G solvation = -4128.560738 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.64 seconds Orbital eigenvalues (eV) -40.71366 -38.95355 -37.42492 -36.38656 -35.41717 -34.94321 -32.81663 -32.62174 -30.41774 -29.15126 -27.35685 -27.04621 -26.67615 -25.93840 -23.72439 -22.92042 -22.34695 -21.60284 -21.23142 -18.65477 -18.37044 -17.13783 -16.65524 -16.38518 -16.07714 -15.90485 -15.36635 -15.06200 -15.00920 -14.75598 -14.53178 -14.32486 -14.09099 -13.83429 -13.46453 -13.38844 -13.16476 -12.71417 -12.62760 -12.47180 -12.21139 -12.13381 -11.95166 -11.91288 -11.64849 -11.56403 -11.48571 -11.45816 -11.21911 -11.16626 -10.96581 -10.88080 -10.84962 -10.68781 -10.68430 -10.53765 -10.13321 -9.74926 -9.40466 -9.27731 -9.06388 -8.53127 -8.43117 -7.74316 -6.16470 -4.24451 2.90495 3.20039 3.23334 3.26416 3.29527 3.33014 3.80219 4.14383 4.33488 4.54678 4.74550 4.87793 4.97396 4.98815 5.08645 5.17906 5.22488 5.30381 5.35817 5.38817 5.48935 5.50398 5.59700 5.62460 5.65244 5.67658 5.68339 5.75688 5.80294 5.84368 5.87046 5.88555 5.90481 5.96188 6.08106 6.09689 6.18332 6.21093 6.30232 6.31627 6.34617 6.35233 6.81472 6.87703 7.29069 7.40658 7.46740 7.55960 7.79624 8.09051 8.31314 8.49313 8.77835 8.95244 9.42893 10.89755 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.009391 B = 0.004168 C = 0.003320 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2980.755479 B = 6716.536327 C = 8432.794966 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.150 4.150 2 C -0.121 4.121 3 C -0.136 4.136 4 C 0.160 3.840 5 H 0.084 0.916 6 C -0.167 4.167 7 N -0.606 5.606 8 C 0.117 3.883 9 C -0.118 4.118 10 H 0.136 0.864 11 C 0.526 3.474 12 O -0.573 6.573 13 N -0.584 5.584 14 C 0.236 3.764 15 C -0.543 4.543 16 H 0.059 0.941 17 C 0.068 3.932 18 N -0.887 5.887 19 Si 0.894 3.106 20 H -0.277 1.277 21 H -0.286 1.286 22 H -0.276 1.276 23 C 0.121 3.879 24 C 0.048 3.952 25 O -0.375 6.375 26 C 0.033 3.967 27 C -0.140 4.140 28 C 0.522 3.478 29 O -0.539 6.539 30 H 0.051 0.949 31 H 0.052 0.948 32 H 0.053 0.947 33 H 0.058 0.942 34 H 0.063 0.937 35 H 0.080 0.920 36 H 0.069 0.931 37 H 0.061 0.939 38 H 0.061 0.939 39 H 0.069 0.931 40 H 0.091 0.909 41 H 0.074 0.926 42 H 0.049 0.951 43 H 0.039 0.961 44 H 0.265 0.735 45 H 0.087 0.913 46 H 0.088 0.912 47 H 0.050 0.950 48 H 0.046 0.954 49 H 0.036 0.964 50 H 0.084 0.916 51 H 0.034 0.966 52 H 0.112 0.888 53 H 0.107 0.893 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -4.802 6.208 -10.364 13.000 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 -0.208 4.208 2 C -0.159 4.159 3 C -0.174 4.174 4 C 0.057 3.943 5 H 0.102 0.898 6 C -0.225 4.225 7 N -0.340 5.340 8 C -0.006 4.006 9 C -0.139 4.139 10 H 0.153 0.847 11 C 0.313 3.687 12 O -0.455 6.455 13 N -0.313 5.313 14 C 0.117 3.883 15 C -0.582 4.582 16 H 0.077 0.923 17 C -0.136 4.136 18 N -0.524 5.524 19 Si 0.722 3.278 20 H -0.202 1.202 21 H -0.212 1.212 22 H -0.201 1.201 23 C -0.003 4.003 24 C -0.030 4.030 25 O -0.293 6.293 26 C -0.064 4.064 27 C -0.180 4.180 28 C 0.311 3.689 29 O -0.417 6.417 30 H 0.070 0.930 31 H 0.071 0.929 32 H 0.072 0.928 33 H 0.077 0.923 34 H 0.081 0.919 35 H 0.098 0.902 36 H 0.087 0.913 37 H 0.080 0.920 38 H 0.080 0.920 39 H 0.088 0.912 40 H 0.109 0.891 41 H 0.092 0.908 42 H 0.067 0.933 43 H 0.057 0.943 44 H 0.075 0.925 45 H 0.105 0.895 46 H 0.106 0.894 47 H 0.068 0.932 48 H 0.064 0.936 49 H 0.054 0.946 50 H 0.102 0.898 51 H 0.053 0.947 52 H 0.130 0.870 53 H 0.125 0.875 Dipole moment (debyes) X Y Z Total from point charges -5.056 6.776 -10.517 13.494 hybrid contribution 0.465 -0.872 0.102 0.993 sum -4.591 5.905 -10.415 12.822 Atomic orbital electron populations 1.21752 0.96044 1.01359 1.01627 1.21487 0.95665 0.96800 1.01941 1.22051 0.94680 0.97394 1.03310 1.20902 0.93516 0.94541 0.85309 0.89750 1.22151 1.01837 0.96151 1.02320 1.48289 1.50985 1.28889 1.05869 1.22040 0.93809 0.87038 0.97686 1.22236 0.92732 1.03216 0.95724 0.84667 1.20050 0.86060 0.79504 0.83044 1.90581 1.72446 1.49379 1.33046 1.48107 1.21917 1.47840 1.13461 1.19564 0.96189 0.90598 0.81958 1.21493 1.35908 0.94657 1.06092 0.92280 1.24915 0.94856 0.98783 0.95034 1.69922 1.37950 1.35752 1.08820 0.86625 0.79245 0.84470 0.77500 1.20220 1.21200 1.20126 1.21347 0.87840 0.89150 1.01962 1.23021 0.97678 0.98511 0.83799 1.88045 1.85465 1.27436 1.28370 1.22688 0.98605 0.85450 0.99684 1.22330 0.98455 0.99565 0.97683 1.20892 0.79673 0.83983 0.84372 1.90636 1.40162 1.26850 1.84045 0.93026 0.92933 0.92772 0.92337 0.91866 0.90180 0.91285 0.92027 0.92041 0.91240 0.89097 0.90819 0.93285 0.94273 0.92487 0.89500 0.89390 0.93226 0.93591 0.94570 0.89787 0.94744 0.86959 0.87507 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 -0.15 -1.44 9.91 37.16 0.37 -1.07 16 2 C -0.12 -1.28 5.82 -26.73 -0.16 -1.44 16 3 C -0.14 -1.58 4.64 -26.73 -0.12 -1.70 16 4 C 0.16 2.01 2.86 -67.93 -0.19 1.82 16 5 H 0.08 0.92 8.07 -51.93 -0.42 0.51 16 6 C -0.17 -2.18 9.20 37.16 0.34 -1.84 16 7 N -0.61 -8.89 2.28 -164.85 -0.38 -9.27 16 8 C 0.12 1.66 6.60 -3.13 -0.02 1.64 16 9 C -0.12 -1.98 2.54 -90.14 -0.23 -2.20 16 10 H 0.14 2.36 7.34 -51.93 -0.38 1.98 16 11 C 0.53 10.21 6.86 -10.98 -0.08 10.14 16 12 O -0.57 -11.85 15.13 5.56 0.08 -11.76 16 13 N -0.58 -11.76 2.43 -175.06 -0.43 -12.18 16 14 C 0.24 5.40 4.49 -5.20 -0.02 5.38 16 15 C -0.54 -13.48 8.82 -34.44 -0.30 -13.78 16 16 H 0.06 1.48 7.81 -52.49 -0.41 1.07 16 17 C 0.07 1.72 5.46 -17.82 -0.10 1.63 16 18 N -0.89 -23.77 13.29 55.43 0.74 -23.03 16 19 Si 0.89 19.88 29.54 -169.99 -5.02 14.86 16 20 H -0.28 -6.18 7.11 56.52 0.40 -5.78 16 21 H -0.29 -6.38 7.11 56.52 0.40 -5.98 16 22 H -0.28 -6.02 7.11 56.52 0.40 -5.62 16 23 C 0.12 2.16 5.83 -4.04 -0.02 2.14 16 24 C 0.05 0.78 6.28 37.16 0.23 1.01 16 25 O -0.37 -6.65 9.63 -35.23 -0.34 -6.99 16 26 C 0.03 0.45 11.01 101.05 1.11 1.56 16 27 C -0.14 -2.34 5.26 -26.74 -0.14 -2.48 16 28 C 0.52 8.95 7.39 -10.86 -0.08 8.87 16 29 O -0.54 -10.55 15.07 5.56 0.08 -10.47 16 30 H 0.05 0.44 8.14 -51.93 -0.42 0.02 16 31 H 0.05 0.46 8.14 -51.93 -0.42 0.04 16 32 H 0.05 0.56 8.14 -51.93 -0.42 0.13 16 33 H 0.06 0.55 8.14 -51.93 -0.42 0.13 16 34 H 0.06 0.75 7.75 -51.93 -0.40 0.35 16 35 H 0.08 1.14 6.62 -51.93 -0.34 0.80 16 36 H 0.07 0.68 8.14 -51.93 -0.42 0.26 16 37 H 0.06 0.88 8.14 -51.93 -0.42 0.46 16 38 H 0.06 0.64 8.14 -51.93 -0.42 0.22 16 39 H 0.07 1.07 6.80 -51.93 -0.35 0.71 16 40 H 0.09 1.34 7.08 -51.93 -0.37 0.97 16 41 H 0.07 0.87 8.14 -51.93 -0.42 0.45 16 42 H 0.05 1.24 7.23 -51.93 -0.38 0.87 16 43 H 0.04 0.91 5.23 -51.93 -0.27 0.64 16 44 H 0.27 6.83 8.31 -40.82 -0.34 6.49 16 45 H 0.09 1.57 8.07 -51.93 -0.42 1.15 16 46 H 0.09 1.51 7.35 -51.93 -0.38 1.13 16 47 H 0.05 0.68 8.14 -51.93 -0.42 0.25 16 48 H 0.05 0.79 8.14 -51.93 -0.42 0.37 16 49 H 0.04 0.48 8.14 -51.93 -0.42 0.06 16 50 H 0.08 1.07 8.14 -51.93 -0.42 0.64 16 51 H 0.03 0.40 8.14 -51.93 -0.42 -0.02 16 52 H 0.11 1.72 8.14 -51.93 -0.42 1.30 16 53 H 0.11 1.98 6.96 -51.93 -0.36 1.62 16 LS Contribution 420.27 15.07 6.33 6.33 Total: -1.00 -29.77 420.27 -7.88 -37.65 By element: Atomic # 1 Polarization: 14.74 SS G_CDS: -9.54 Total: 5.20 kcal Atomic # 6 Polarization: 9.07 SS G_CDS: 0.59 Total: 9.66 kcal Atomic # 7 Polarization: -44.41 SS G_CDS: -0.07 Total: -44.48 kcal Atomic # 8 Polarization: -29.05 SS G_CDS: -0.17 Total: -29.22 kcal Atomic # 14 Polarization: 19.88 SS G_CDS: -5.02 Total: 14.86 kcal Total LS contribution 6.33 Total: 6.33 kcal Total: -29.77 -7.88 -37.65 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. ZINC000609136625.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 -91.461 kcal (2) G-P(sol) polarization free energy of solvation -29.769 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -121.229 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -7.877 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -37.646 kcal (6) G-S(sol) free energy of system = (1) + (5) -129.107 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.64 seconds