Wall clock time and date at job start Sat Apr 11 2020 05:30:08 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 N 1.46898 * 1 3 3 C 1.46907 * 110.99993 * 2 1 4 4 C 1.50693 * 109.46852 * 293.95396 * 3 2 1 5 5 H 1.08001 * 120.00273 * 0.02562 * 4 3 2 6 6 C 1.37881 * 119.99795 * 180.02562 * 4 3 2 7 7 N 1.31517 * 120.00051 * 0.02562 * 6 4 3 8 8 Si 1.86802 * 119.99965 * 180.02562 * 6 4 3 9 9 H 1.48500 * 109.47036 * 89.99696 * 8 6 4 10 10 H 1.48494 * 109.47011 * 210.00080 * 8 6 4 11 11 H 1.48507 * 109.47222 * 330.00146 * 8 6 4 12 12 C 1.46902 * 111.00010 * 123.95092 * 2 1 3 13 13 C 1.53009 * 109.46892 * 164.00738 * 12 2 1 14 14 H 1.09001 * 109.46358 * 58.51402 * 13 12 2 15 15 O 1.42893 * 109.47413 * 298.51321 * 13 12 2 16 16 C 1.52996 * 109.46876 * 178.51050 * 13 12 2 17 17 N 1.46899 * 109.46927 * 185.00240 * 16 13 12 18 18 C 1.46899 * 111.00080 * 180.02562 * 17 16 13 19 19 C 1.52999 * 109.47363 * 180.02562 * 18 17 16 20 20 C 1.52998 * 109.47207 * 59.99880 * 19 18 17 21 21 C 1.52995 * 109.47013 * 300.00121 * 19 18 17 22 22 C 1.50698 * 109.47101 * 180.02562 * 19 18 17 23 23 C 1.38271 * 119.99070 * 359.95228 * 22 19 18 24 24 C 1.38220 * 120.05114 * 179.97438 * 23 22 19 25 25 C 1.38223 * 120.02868 * 0.04873 * 24 23 22 26 26 C 1.38436 * 119.97205 * 359.97438 * 25 24 23 27 27 F 1.35102 * 120.02605 * 180.02562 * 26 25 24 28 28 C 1.38183 * 119.98802 * 180.02562 * 22 19 18 29 29 H 1.09003 * 109.47054 * 301.53089 * 1 2 3 30 30 H 1.08998 * 109.47422 * 61.52836 * 1 2 3 31 31 H 1.08998 * 109.47259 * 181.53396 * 1 2 3 32 32 H 1.08994 * 109.46875 * 53.95679 * 3 2 1 33 33 H 1.09004 * 109.46810 * 173.95454 * 3 2 1 34 34 H 0.96999 * 119.99520 * 180.02562 * 7 6 4 35 35 H 1.09002 * 109.47011 * 44.01805 * 12 2 1 36 36 H 1.08992 * 109.47290 * 284.01228 * 12 2 1 37 37 H 0.96701 * 113.99947 * 300.00419 * 15 13 12 38 38 H 1.09000 * 109.46979 * 65.00704 * 16 13 12 39 39 H 1.09000 * 109.47285 * 305.00058 * 16 13 12 40 40 H 1.00895 * 111.00012 * 303.95646 * 17 16 13 41 41 H 1.09002 * 109.47279 * 59.99785 * 18 17 16 42 42 H 1.09003 * 109.47448 * 300.00287 * 18 17 16 43 43 H 1.08994 * 109.47091 * 179.97438 * 20 19 18 44 44 H 1.08995 * 109.47325 * 300.00808 * 20 19 18 45 45 H 1.09007 * 109.47109 * 59.99824 * 20 19 18 46 46 H 1.09009 * 109.47121 * 299.99664 * 21 19 18 47 47 H 1.08994 * 109.47284 * 60.00081 * 21 19 18 48 48 H 1.09005 * 109.47480 * 180.02562 * 21 19 18 49 49 H 1.08000 * 119.97031 * 0.05000 * 23 22 19 50 50 H 1.07997 * 119.98493 * 180.02562 * 24 23 22 51 51 H 1.08002 * 120.01093 * 179.97438 * 25 24 23 52 52 H 1.08001 * 120.00802 * 0.25452 * 28 22 19 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 7 1.4690 0.0000 0.0000 3 6 1.9954 1.3715 0.0000 4 6 1.6369 2.0471 -1.2984 5 1 1.0739 1.5115 -2.0484 6 6 2.0277 3.3491 -1.5289 7 7 2.7137 4.0013 -0.6158 8 14 1.5826 4.1869 -3.1381 9 1 0.2707 4.8679 -2.9953 10 1 2.6252 5.1875 -3.4801 11 1 1.4981 3.1712 -4.2182 12 6 1.9954 -0.7659 1.1376 13 6 3.4728 -1.0840 0.8984 14 1 4.0282 -0.1549 0.7697 15 8 3.6034 -1.8838 -0.2785 16 6 4.0308 -1.8495 2.0998 17 7 5.4754 -2.0502 1.9246 18 6 6.0467 -2.7842 3.0616 19 6 7.5493 -2.9729 2.8438 20 6 8.2239 -1.6044 2.7295 21 6 7.7823 -3.7655 1.5562 22 6 8.1351 -3.7264 4.0100 23 6 7.3211 -4.1262 5.0538 24 6 7.8571 -4.8179 6.1237 25 6 9.2078 -5.1099 6.1520 26 6 10.0239 -4.7097 5.1077 27 9 11.3442 -4.9949 5.1340 28 6 9.4860 -4.0163 4.0366 29 1 -0.3633 0.5374 0.8760 30 1 -0.3634 0.4899 -0.9033 31 1 -0.3634 -1.0273 0.0275 32 1 1.5611 1.9273 0.8309 33 1 3.0798 1.3444 0.1082 34 1 2.9882 4.9174 -0.7778 35 1 1.4357 -1.6957 1.2399 36 1 1.8934 -0.1781 2.0498 37 1 3.1333 -2.7277 -0.2346 38 1 3.5360 -2.8178 2.1753 39 1 3.8512 -1.2777 3.0102 40 1 5.6720 -2.5218 1.0546 41 1 5.5658 -3.7589 3.1434 42 1 5.8810 -2.2193 3.9790 43 1 9.2943 -1.7388 2.5748 44 1 7.8000 -1.0597 1.8859 45 1 8.0578 -1.0396 3.6469 46 1 7.3018 -4.7405 1.6376 47 1 7.3585 -3.2209 0.7125 48 1 8.8528 -3.9004 1.4011 49 1 6.2655 -3.8989 5.0323 50 1 7.2202 -5.1300 6.9382 51 1 9.6264 -5.6500 6.9883 52 1 10.1225 -3.6993 3.2237 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) 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 ZINC000566114725.mol2 52 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 05:30:08 Heat of formation + Delta-G solvation = -73.644135 kcal Electronic energy + Delta-G solvation = -29208.053267 eV Core-core repulsion = 25121.581827 eV Total energy + Delta-G solvation = -4086.471440 eV No. of doubly occupied orbitals = 65 Molecular weight (most abundant/longest-lived isotopes) = 338.211 amu Computer time = 0.68 seconds Orbital eigenvalues (eV) -49.19438 -40.24164 -38.29779 -37.06122 -35.53669 -33.85691 -32.45119 -31.09520 -30.29843 -29.50084 -27.42174 -27.31916 -26.58062 -24.87665 -23.52888 -22.93543 -22.45285 -21.51331 -20.05014 -19.51608 -17.71422 -16.74205 -16.53584 -16.40828 -16.10240 -15.94618 -15.88737 -15.20627 -14.92031 -14.80289 -14.53969 -14.32510 -14.07221 -13.81570 -13.75655 -13.45982 -13.33581 -13.05114 -12.76177 -12.50314 -12.31998 -12.14209 -12.07780 -11.94841 -11.91888 -11.73698 -11.37587 -11.16113 -11.15722 -10.94081 -10.90539 -10.78269 -10.67437 -10.63420 -10.31514 -9.72110 -9.57950 -9.27907 -9.10325 -9.00304 -8.43252 -8.38139 -7.18621 -5.98035 -3.98384 0.82065 0.86307 3.23517 3.34955 3.41166 3.46236 3.75896 4.04502 4.29422 4.36742 4.47226 4.66301 4.68510 4.73121 4.78726 4.83259 4.95894 4.97504 5.03709 5.27851 5.34390 5.38573 5.38981 5.45687 5.51528 5.56339 5.57231 5.67502 5.71626 5.73216 5.75902 5.78908 5.81554 5.84821 5.97134 6.04098 6.05702 6.09847 6.21036 6.31814 6.34770 6.54586 6.55668 6.72331 6.95055 7.31768 7.34723 7.37644 7.83541 8.07621 8.14350 8.24065 8.59328 9.08595 9.65183 11.13012 Molecular weight = 338.21amu Principal moments of inertia in cm(-1) A = 0.019740 B = 0.001907 C = 0.001821 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1418.133258 B =14680.960556 C =15372.675540 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.040 3.960 2 N -0.531 5.531 3 C 0.192 3.808 4 C -0.504 4.504 5 H 0.062 0.938 6 C 0.054 3.946 7 N -0.899 5.899 8 Si 0.897 3.103 9 H -0.282 1.282 10 H -0.287 1.287 11 H -0.273 1.273 12 C 0.027 3.973 13 C 0.115 3.885 14 H 0.113 0.887 15 O -0.541 6.541 16 C 0.031 3.969 17 N -0.680 5.680 18 C 0.068 3.932 19 C -0.024 4.024 20 C -0.132 4.132 21 C -0.144 4.144 22 C -0.035 4.035 23 C -0.133 4.133 24 C -0.088 4.088 25 C -0.163 4.163 26 C 0.099 3.901 27 F -0.142 7.142 28 C -0.149 4.149 29 H 0.010 0.990 30 H 0.073 0.927 31 H 0.042 0.958 32 H -0.012 1.012 33 H 0.033 0.967 34 H 0.260 0.740 35 H 0.058 0.942 36 H 0.031 0.969 37 H 0.358 0.642 38 H 0.027 0.973 39 H 0.078 0.922 40 H 0.349 0.651 41 H 0.030 0.970 42 H 0.075 0.925 43 H 0.049 0.951 44 H 0.079 0.921 45 H 0.054 0.946 46 H 0.054 0.946 47 H 0.071 0.929 48 H 0.059 0.941 49 H 0.132 0.868 50 H 0.132 0.868 51 H 0.132 0.868 52 H 0.135 0.865 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 10.507 -20.177 13.586 26.497 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 -0.109 4.109 2 N -0.255 5.255 3 C 0.067 3.933 4 C -0.542 4.542 5 H 0.081 0.919 6 C -0.147 4.147 7 N -0.539 5.539 8 Si 0.725 3.275 9 H -0.209 1.209 10 H -0.213 1.213 11 H -0.198 1.198 12 C -0.103 4.103 13 C 0.055 3.945 14 H 0.131 0.869 15 O -0.344 6.344 16 C -0.099 4.099 17 N -0.314 5.314 18 C -0.062 4.062 19 C -0.024 4.024 20 C -0.189 4.189 21 C -0.201 4.201 22 C -0.035 4.035 23 C -0.152 4.152 24 C -0.106 4.106 25 C -0.182 4.182 26 C 0.080 3.920 27 F -0.120 7.120 28 C -0.167 4.167 29 H 0.028 0.972 30 H 0.092 0.908 31 H 0.060 0.940 32 H 0.005 0.995 33 H 0.051 0.949 34 H 0.070 0.930 35 H 0.076 0.924 36 H 0.049 0.951 37 H 0.203 0.797 38 H 0.045 0.955 39 H 0.096 0.904 40 H 0.169 0.831 41 H 0.048 0.952 42 H 0.093 0.907 43 H 0.068 0.932 44 H 0.098 0.902 45 H 0.074 0.926 46 H 0.073 0.927 47 H 0.090 0.910 48 H 0.078 0.922 49 H 0.150 0.850 50 H 0.149 0.851 51 H 0.150 0.850 52 H 0.153 0.847 Dipole moment (debyes) X Y Z Total from point charges 11.328 -19.100 13.228 25.848 hybrid contribution -0.904 -0.445 0.232 1.034 sum 10.424 -19.545 13.461 25.920 Atomic orbital electron populations 1.22193 0.88949 0.98795 1.00926 1.62054 1.06425 1.17936 1.39102 1.19781 0.95621 0.81381 0.96478 1.21146 1.34560 0.96802 1.01718 0.91944 1.24990 0.95363 0.97410 0.96959 1.69959 1.38435 1.11393 1.34107 0.86508 0.77883 0.79212 0.83875 1.20867 1.21267 1.19768 1.22661 0.95821 0.98114 0.93734 1.22007 0.94760 0.94658 0.83102 0.86914 1.86703 1.75120 1.33259 1.39308 1.22676 0.87914 0.98919 1.00432 1.60368 1.12425 1.53517 1.05042 1.22078 0.92874 0.96053 0.95163 1.19541 0.94808 0.95623 0.92468 1.21801 0.99139 0.94568 1.03390 1.21944 1.02188 0.99581 0.96427 1.19734 0.92424 0.95925 0.95440 1.21282 1.00653 0.99367 0.93849 1.21018 0.94141 0.97155 0.98270 1.21134 0.94414 1.03741 0.98889 1.17697 0.77845 1.00023 0.96459 1.91501 1.32132 1.91765 1.96643 1.20970 0.95966 1.01213 0.98589 0.97184 0.90804 0.93966 0.99454 0.94877 0.92998 0.92361 0.95105 0.79660 0.95451 0.90407 0.83078 0.95165 0.90693 0.93166 0.90167 0.92644 0.92719 0.91025 0.92194 0.84989 0.85056 0.84976 0.84720 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 12. 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 0.04 0.78 9.32 60.06 0.56 1.34 16 2 N -0.53 -11.39 4.60 -244.37 -1.12 -12.52 16 3 C 0.19 5.04 4.57 -4.98 -0.02 5.02 16 4 C -0.50 -14.38 8.54 -34.44 -0.29 -14.67 16 5 H 0.06 1.77 7.10 -52.49 -0.37 1.40 16 6 C 0.05 1.55 5.46 -17.82 -0.10 1.45 16 7 N -0.90 -27.00 13.29 55.43 0.74 -26.26 16 8 Si 0.90 21.98 29.54 -169.99 -5.02 16.96 16 9 H -0.28 -6.79 7.11 56.52 0.40 -6.39 16 10 H -0.29 -6.97 7.11 56.52 0.40 -6.56 16 11 H -0.27 -6.60 7.11 56.52 0.40 -6.20 16 12 C 0.03 0.45 4.63 -3.82 -0.02 0.43 16 13 C 0.11 1.80 3.23 -26.73 -0.09 1.72 16 14 H 0.11 2.21 6.55 -51.93 -0.34 1.87 16 15 O -0.54 -8.63 12.75 -35.23 -0.45 -9.08 16 16 C 0.03 0.36 5.36 -3.83 -0.02 0.34 16 17 N -0.68 -7.64 5.71 -113.78 -0.65 -8.29 16 18 C 0.07 0.62 3.30 -3.82 -0.01 0.61 16 19 C -0.02 -0.21 0.67 -155.67 -0.10 -0.31 16 20 C -0.13 -1.27 8.13 37.16 0.30 -0.97 16 21 C -0.14 -1.18 7.96 37.15 0.30 -0.89 16 22 C -0.03 -0.30 4.76 -104.63 -0.50 -0.79 16 23 C -0.13 -1.04 8.97 -39.58 -0.36 -1.39 16 24 C -0.09 -0.62 10.04 -39.59 -0.40 -1.01 16 25 C -0.16 -1.27 10.03 -39.51 -0.40 -1.67 16 26 C 0.10 0.91 7.30 -39.42 -0.29 0.63 16 27 F -0.14 -1.44 17.27 2.25 0.04 -1.40 16 28 C -0.15 -1.32 8.69 -39.51 -0.34 -1.66 16 29 H 0.01 0.19 8.13 -51.93 -0.42 -0.24 16 30 H 0.07 1.53 6.90 -51.93 -0.36 1.17 16 31 H 0.04 0.68 7.97 -51.93 -0.41 0.27 16 32 H -0.01 -0.34 8.11 -51.93 -0.42 -0.77 16 33 H 0.03 0.93 6.38 -51.93 -0.33 0.60 16 34 H 0.26 7.40 8.31 -40.82 -0.34 7.06 16 35 H 0.06 0.83 7.88 -51.93 -0.41 0.43 16 36 H 0.03 0.53 8.05 -51.93 -0.42 0.11 16 37 H 0.36 4.26 9.05 45.56 0.41 4.67 16 38 H 0.03 0.28 8.14 -51.93 -0.42 -0.14 16 39 H 0.08 0.93 8.14 -51.93 -0.42 0.50 16 40 H 0.35 3.92 6.33 -39.29 -0.25 3.67 16 41 H 0.03 0.26 7.51 -51.93 -0.39 -0.13 16 42 H 0.07 0.70 7.51 -51.93 -0.39 0.31 16 43 H 0.05 0.44 7.38 -51.93 -0.38 0.05 16 44 H 0.08 0.89 7.60 -51.93 -0.39 0.50 16 45 H 0.05 0.56 8.14 -51.92 -0.42 0.13 16 46 H 0.05 0.43 8.14 -51.92 -0.42 0.01 16 47 H 0.07 0.63 6.57 -51.93 -0.34 0.28 16 48 H 0.06 0.46 7.39 -51.93 -0.38 0.08 16 49 H 0.13 0.88 5.89 -52.49 -0.31 0.58 16 50 H 0.13 0.62 8.06 -52.49 -0.42 0.19 16 51 H 0.13 0.80 8.06 -52.49 -0.42 0.37 16 52 H 0.13 1.09 7.10 -52.49 -0.37 0.71 16 LS Contribution 411.85 15.07 6.21 6.21 Total: -1.00 -31.68 411.85 -10.00 -41.68 By element: Atomic # 1 Polarization: 12.51 SS G_CDS: -7.96 Total: 4.55 kcal Atomic # 6 Polarization: -10.07 SS G_CDS: -1.78 Total: -11.85 kcal Atomic # 7 Polarization: -46.03 SS G_CDS: -1.04 Total: -47.07 kcal Atomic # 8 Polarization: -8.63 SS G_CDS: -0.45 Total: -9.08 kcal Atomic # 9 Polarization: -1.44 SS G_CDS: 0.04 Total: -1.40 kcal Atomic # 14 Polarization: 21.98 SS G_CDS: -5.02 Total: 16.96 kcal Total LS contribution 6.21 Total: 6.21 kcal Total: -31.68 -10.00 -41.68 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. ZINC000566114725.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 -31.969 kcal (2) G-P(sol) polarization free energy of solvation -31.675 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -63.644 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -10.000 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -41.676 kcal (6) G-S(sol) free energy of system = (1) + (5) -73.644 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.68 seconds