Wall clock time and date at job start Sat Apr 11 2020 06:14:01 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 1.52997 * 1 3 3 N 1.46904 * 109.46909 * 2 1 4 4 C 1.46907 * 110.99466 * 164.53641 * 3 2 1 5 5 C 1.50693 * 109.47226 * 283.79019 * 4 3 2 6 6 O 1.21297 * 120.00255 * 0.61159 * 5 4 3 7 7 N 1.34779 * 120.00100 * 180.61021 * 5 4 3 8 8 C 1.37094 * 119.99863 * 180.02562 * 7 5 4 9 9 H 1.08003 * 120.00495 * 359.97438 * 8 7 5 10 10 C 1.38958 * 119.99911 * 179.97438 * 8 7 5 11 11 N 1.31415 * 119.99574 * 0.02562 * 10 8 7 12 12 Si 1.86794 * 120.00052 * 179.97438 * 10 8 7 13 13 H 1.48510 * 109.46798 * 90.00511 * 12 10 8 14 14 H 1.48504 * 109.47265 * 210.00030 * 12 10 8 15 15 H 1.48493 * 109.47502 * 330.00171 * 12 10 8 16 16 C 1.46894 * 110.99899 * 288.48876 * 3 2 1 17 17 H 1.09002 * 109.47449 * 49.85947 * 16 3 2 18 18 C 1.53002 * 109.47145 * 289.85972 * 16 3 2 19 19 C 1.52995 * 109.47137 * 169.86091 * 16 3 2 20 20 N 1.46504 * 109.46962 * 304.81156 * 19 16 3 21 21 C 1.34774 * 120.00101 * 184.71768 * 20 19 16 22 22 O 1.21290 * 120.00072 * 0.02562 * 21 20 19 23 23 C 1.50700 * 120.00113 * 180.02562 * 21 20 19 24 24 H 1.08999 * 110.36744 * 40.70139 * 23 21 20 25 25 C 1.54381 * 110.41216 * 278.35188 * 23 21 20 26 26 C 1.54259 * 105.06273 * 217.37084 * 25 23 21 27 27 C 1.54384 * 105.05810 * 359.97438 * 26 25 23 28 28 N 1.48564 * 110.41326 * 163.05308 * 23 21 20 29 29 C 1.46898 * 110.99781 * 277.81670 * 28 23 21 30 30 H 1.09001 * 109.47196 * 65.80045 * 1 2 3 31 31 H 1.09003 * 109.47018 * 185.79607 * 1 2 3 32 32 H 1.08995 * 109.47511 * 305.80196 * 1 2 3 33 33 H 1.08998 * 109.47170 * 239.99719 * 2 1 3 34 34 H 1.09005 * 109.47006 * 119.99291 * 2 1 3 35 35 H 1.08995 * 109.47019 * 43.79472 * 4 3 2 36 36 H 1.09007 * 109.46287 * 163.79347 * 4 3 2 37 37 H 0.96998 * 119.99649 * 0.02562 * 7 5 4 38 38 H 0.97002 * 119.99718 * 179.97438 * 11 10 8 39 39 H 1.08993 * 109.47327 * 60.00012 * 18 16 3 40 40 H 1.08998 * 109.47060 * 180.02562 * 18 16 3 41 41 H 1.09004 * 109.46890 * 299.99750 * 18 16 3 42 42 H 1.08999 * 109.47195 * 64.81216 * 19 16 3 43 43 H 1.08996 * 109.47411 * 184.81872 * 19 16 3 44 44 H 0.97001 * 119.99901 * 4.72587 * 20 19 16 45 45 H 1.08997 * 110.32554 * 336.26492 * 25 23 21 46 46 H 1.08997 * 110.32448 * 98.37051 * 25 23 21 47 47 H 1.08990 * 110.32801 * 118.89504 * 26 25 23 48 48 H 1.08997 * 110.32167 * 241.10591 * 26 25 23 49 49 H 1.08996 * 110.40998 * 142.63975 * 27 26 25 50 50 H 1.09005 * 110.40911 * 265.07224 * 27 26 25 51 51 H 1.09002 * 109.46839 * 60.00329 * 29 28 23 52 52 H 1.09000 * 109.47177 * 179.97438 * 29 28 23 53 53 H 1.08997 * 109.47825 * 299.99821 * 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 7 2.0196 1.3850 0.0000 4 6 3.4413 1.4407 0.3657 5 6 3.5855 1.2453 1.8529 6 8 2.6017 1.0652 2.5392 7 7 4.8077 1.2706 2.4206 8 6 4.9388 1.0923 3.7736 9 1 4.0628 0.9319 4.3846 10 6 6.1989 1.1178 4.3588 11 7 7.2647 1.3134 3.6153 12 14 6.3776 0.8756 6.2023 13 1 6.5427 -0.5704 6.4978 14 1 7.5687 1.6188 6.6861 15 1 5.1635 1.3856 6.8886 16 6 1.7850 2.0263 -1.3006 17 1 0.7474 1.8752 -1.5984 18 6 2.7117 1.4073 -2.3490 19 6 2.0705 3.5252 -1.1890 20 7 1.2655 4.0964 -0.1064 21 6 1.2805 5.4257 0.1154 22 8 1.9602 6.1492 -0.5815 23 6 0.4529 6.0131 1.2294 24 1 0.5006 5.3772 2.1134 25 6 -1.0113 6.1940 0.7746 26 6 -1.4730 7.5142 1.4255 27 6 -0.2491 8.0195 2.2193 28 7 0.9194 7.3860 1.5530 29 6 2.0830 7.3490 2.4489 30 1 -0.3633 0.4213 -0.9374 31 1 -0.3633 -1.0224 0.1038 32 1 -0.3634 0.6011 0.8334 33 1 1.8933 -0.5139 -0.8899 34 1 1.8933 -0.5137 0.8901 35 1 3.9824 0.6530 -0.1585 36 1 3.8507 2.4113 0.0854 37 1 5.5944 1.4150 1.8719 38 1 8.1443 1.3316 4.0239 39 1 2.5084 0.3394 -2.4285 40 1 2.5380 1.8834 -3.3139 41 1 3.7493 1.5585 -2.0512 42 1 3.1282 3.6787 -0.9752 43 1 1.8150 4.0147 -2.1288 44 1 0.7217 3.5178 0.4508 45 1 -1.0639 6.2688 -0.3115 46 1 -1.6224 5.3628 1.1262 47 1 -1.7522 8.2369 0.6589 48 1 -2.3110 7.3318 2.0981 49 1 -0.1788 9.1055 2.1588 50 1 -0.3120 7.6992 3.2593 51 1 2.8967 6.8082 1.9655 52 1 2.4043 8.3670 2.6693 53 1 1.8119 6.8444 3.3762 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 ZINC001152386659.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 06:14:01 Heat of formation + Delta-G solvation = -57.798569 kcal Electronic energy + Delta-G solvation = -31604.666931 eV Core-core repulsion = 27511.491090 eV Total energy + Delta-G solvation = -4093.175842 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.226 amu Computer time = 0.81 seconds Orbital eigenvalues (eV) -40.16827 -39.20854 -37.88520 -37.18213 -34.33767 -33.80508 -32.32527 -31.76144 -31.23527 -30.11232 -29.52602 -26.48166 -26.27113 -25.62638 -24.22623 -22.76756 -21.96247 -21.10048 -20.18309 -19.73823 -18.75191 -17.80932 -17.27247 -16.65363 -16.34525 -15.79078 -15.47515 -15.10606 -14.75763 -14.46588 -14.43410 -14.24117 -14.08031 -13.87945 -13.84389 -13.62808 -13.20678 -13.00409 -12.71338 -12.61692 -12.46098 -12.17310 -12.04973 -11.99641 -11.86660 -11.61524 -11.54072 -11.51502 -11.34992 -11.24377 -11.17101 -11.07006 -10.80685 -10.69332 -10.42695 -10.40049 -10.20994 -9.56531 -9.47677 -8.80734 -8.53616 -8.47960 -7.95778 -7.89228 -6.40710 -3.81424 2.83442 3.17137 3.21257 3.25846 3.31140 3.87040 3.94574 4.08174 4.22966 4.46615 4.51145 4.71510 4.79091 4.92812 5.07324 5.11639 5.12225 5.19626 5.27100 5.30709 5.33758 5.39418 5.40254 5.42923 5.51381 5.55392 5.61883 5.64033 5.65177 5.70765 5.76413 5.83102 5.85854 5.87421 5.95285 5.96465 6.02538 6.07365 6.14589 6.26383 6.35213 6.44187 6.62869 6.68418 6.87599 7.23857 7.32629 7.55384 7.80774 8.07210 8.50309 8.63239 9.19389 9.56490 10.08394 10.77145 Molecular weight = 340.23amu Principal moments of inertia in cm(-1) A = 0.008016 B = 0.003778 C = 0.002925 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 3492.179359 B = 7408.977564 C = 9569.151746 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.141 4.141 2 C 0.053 3.947 3 N -0.506 5.506 4 C 0.041 3.959 5 C 0.446 3.554 6 O -0.577 6.577 7 N -0.567 5.567 8 C -0.298 4.298 9 H 0.102 0.898 10 C 0.022 3.978 11 N -0.902 5.902 12 Si 0.928 3.072 13 H -0.279 1.279 14 H -0.284 1.284 15 H -0.270 1.270 16 C 0.064 3.936 17 H 0.091 0.909 18 C -0.186 4.186 19 C 0.131 3.869 20 N -0.714 5.714 21 C 0.522 3.478 22 O -0.529 6.529 23 C 0.041 3.959 24 H 0.077 0.923 25 C -0.110 4.110 26 C -0.122 4.122 27 C 0.031 3.969 28 N -0.490 5.490 29 C 0.014 3.986 30 H 0.045 0.955 31 H 0.053 0.947 32 H 0.066 0.934 33 H 0.029 0.971 34 H 0.085 0.915 35 H 0.051 0.949 36 H 0.087 0.913 37 H 0.391 0.609 38 H 0.271 0.729 39 H 0.062 0.938 40 H 0.062 0.938 41 H 0.063 0.937 42 H 0.065 0.935 43 H 0.070 0.930 44 H 0.410 0.590 45 H 0.075 0.925 46 H 0.078 0.922 47 H 0.074 0.926 48 H 0.071 0.929 49 H 0.084 0.916 50 H 0.046 0.954 51 H 0.073 0.927 52 H 0.072 0.928 53 H 0.031 0.969 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -14.475 5.696 -9.334 18.141 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 -0.199 4.199 2 C -0.074 4.074 3 N -0.230 5.230 4 C -0.090 4.090 5 C 0.231 3.769 6 O -0.460 6.460 7 N -0.204 5.204 8 C -0.427 4.427 9 H 0.120 0.880 10 C -0.179 4.179 11 N -0.543 5.543 12 Si 0.755 3.245 13 H -0.205 1.205 14 H -0.209 1.209 15 H -0.195 1.195 16 C -0.045 4.045 17 H 0.109 0.891 18 C -0.245 4.245 19 C 0.006 3.994 20 N -0.367 5.367 21 C 0.306 3.694 22 O -0.405 6.405 23 C -0.071 4.071 24 H 0.095 0.905 25 C -0.149 4.149 26 C -0.160 4.160 27 C -0.097 4.097 28 N -0.214 5.214 29 C -0.135 4.135 30 H 0.064 0.936 31 H 0.072 0.928 32 H 0.085 0.915 33 H 0.047 0.953 34 H 0.104 0.896 35 H 0.069 0.931 36 H 0.105 0.895 37 H 0.224 0.776 38 H 0.081 0.919 39 H 0.081 0.919 40 H 0.081 0.919 41 H 0.082 0.918 42 H 0.083 0.917 43 H 0.088 0.912 44 H 0.246 0.754 45 H 0.094 0.906 46 H 0.096 0.904 47 H 0.092 0.908 48 H 0.090 0.910 49 H 0.102 0.898 50 H 0.065 0.935 51 H 0.092 0.908 52 H 0.091 0.909 53 H 0.050 0.950 Dipole moment (debyes) X Y Z Total from point charges -14.519 6.668 -9.422 18.548 hybrid contribution 0.935 -1.288 1.030 1.896 sum -13.584 5.379 -8.392 16.849 Atomic orbital electron populations 1.21723 0.95300 1.01288 1.01593 1.22099 0.95793 0.88477 1.01030 1.61765 1.16963 1.17968 1.26329 1.21913 0.88978 1.01847 0.96249 1.19757 0.84189 0.84375 0.88573 1.90501 1.37595 1.54190 1.63748 1.41871 1.06536 1.63284 1.08672 1.19660 0.94045 1.45997 0.83019 0.88032 1.25240 0.94922 0.97460 1.00303 1.69614 0.98560 1.49920 1.36233 0.85892 0.77888 0.78297 0.82402 1.20466 1.20943 1.19490 1.22046 1.00367 0.93154 0.88969 0.89118 1.22412 1.00891 1.01547 0.99635 1.21360 0.95893 0.91738 0.90364 1.45815 1.48416 1.07160 1.35348 1.20195 0.82095 0.81983 0.85104 1.90679 1.41628 1.59925 1.48224 1.22645 0.94979 0.92131 0.97324 0.90548 1.22211 0.92748 0.98243 1.01683 1.22275 0.97283 0.96881 0.99539 1.23188 0.90021 1.00320 0.96204 1.65115 1.04359 1.12671 1.39288 1.22540 0.93946 1.02447 0.94543 0.93614 0.92810 0.91509 0.95305 0.89612 0.93130 0.89499 0.77629 0.91917 0.91857 0.91890 0.91773 0.91721 0.91221 0.75403 0.90636 0.90379 0.90760 0.90998 0.89775 0.93547 0.90838 0.90949 0.95034 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 -0.14 -1.65 9.85 37.16 0.37 -1.28 16 2 C 0.05 0.75 5.16 -3.82 -0.02 0.73 16 3 N -0.51 -7.29 3.36 -228.08 -0.77 -8.05 16 4 C 0.04 0.70 4.05 -4.98 -0.02 0.68 16 5 C 0.45 10.11 7.40 -10.99 -0.08 10.03 16 6 O -0.58 -14.72 14.89 5.54 0.08 -14.64 16 7 N -0.57 -14.16 5.29 -10.96 -0.06 -14.21 16 8 C -0.30 -8.20 9.68 -14.93 -0.14 -8.34 16 9 H 0.10 2.93 7.16 -52.48 -0.38 2.55 16 10 C 0.02 0.59 5.50 -17.46 -0.10 0.50 16 11 N -0.90 -24.58 13.05 55.50 0.72 -23.85 16 12 Si 0.93 21.01 29.55 -169.99 -5.02 15.99 16 13 H -0.28 -6.23 7.11 56.52 0.40 -5.83 16 14 H -0.28 -6.32 7.11 56.52 0.40 -5.92 16 15 H -0.27 -6.10 7.11 56.52 0.40 -5.70 16 16 C 0.06 0.73 2.39 -67.72 -0.16 0.56 16 17 H 0.09 0.93 6.48 -51.93 -0.34 0.59 16 18 C -0.19 -1.87 8.54 37.16 0.32 -1.56 16 19 C 0.13 1.67 4.91 -4.04 -0.02 1.65 16 20 N -0.71 -9.67 5.41 -60.29 -0.33 -10.00 16 21 C 0.52 7.94 6.71 -10.99 -0.07 7.86 16 22 O -0.53 -9.94 16.58 5.55 0.09 -9.84 16 23 C 0.04 0.53 2.68 -67.22 -0.18 0.35 16 24 H 0.08 1.00 7.97 -51.93 -0.41 0.58 16 25 C -0.11 -1.10 6.54 -25.35 -0.17 -1.27 16 26 C -0.12 -1.06 7.00 -25.35 -0.18 -1.24 16 27 C 0.03 0.31 6.50 -2.11 -0.01 0.30 16 28 N -0.49 -6.59 4.93 -231.60 -1.14 -7.73 16 29 C 0.01 0.19 9.45 60.06 0.57 0.75 16 30 H 0.04 0.45 6.80 -51.93 -0.35 0.10 16 31 H 0.05 0.57 8.14 -51.93 -0.42 0.15 16 32 H 0.07 0.87 8.14 -51.93 -0.42 0.44 16 33 H 0.03 0.36 6.26 -51.93 -0.33 0.03 16 34 H 0.09 1.49 6.75 -51.93 -0.35 1.14 16 35 H 0.05 0.80 7.34 -51.93 -0.38 0.42 16 36 H 0.09 1.43 5.93 -51.92 -0.31 1.12 16 37 H 0.39 9.50 7.90 -40.82 -0.32 9.17 16 38 H 0.27 7.01 8.31 -40.82 -0.34 6.67 16 39 H 0.06 0.63 6.50 -51.93 -0.34 0.29 16 40 H 0.06 0.54 8.14 -51.93 -0.42 0.12 16 41 H 0.06 0.70 6.76 -51.93 -0.35 0.35 16 42 H 0.06 0.94 6.44 -51.93 -0.33 0.61 16 43 H 0.07 0.85 8.14 -51.93 -0.42 0.43 16 44 H 0.41 5.37 8.07 -40.82 -0.33 5.04 16 45 H 0.07 0.79 7.85 -51.93 -0.41 0.39 16 46 H 0.08 0.64 8.14 -51.93 -0.42 0.22 16 47 H 0.07 0.62 8.14 -51.93 -0.42 0.20 16 48 H 0.07 0.51 8.14 -51.93 -0.42 0.08 16 49 H 0.08 0.78 8.14 -51.93 -0.42 0.36 16 50 H 0.05 0.45 7.91 -51.93 -0.41 0.04 16 51 H 0.07 1.14 7.96 -51.93 -0.41 0.73 16 52 H 0.07 0.85 8.14 -51.93 -0.42 0.43 16 53 H 0.03 0.40 7.98 -51.93 -0.41 -0.01 16 LS Contribution 414.37 15.07 6.24 6.24 Total: -1.00 -32.40 414.37 -9.18 -41.58 By element: Atomic # 1 Polarization: 23.90 SS G_CDS: -9.10 Total: 14.79 kcal Atomic # 6 Polarization: 9.63 SS G_CDS: 0.10 Total: 9.73 kcal Atomic # 7 Polarization: -62.28 SS G_CDS: -1.57 Total: -63.85 kcal Atomic # 8 Polarization: -24.66 SS G_CDS: 0.17 Total: -24.49 kcal Atomic # 14 Polarization: 21.01 SS G_CDS: -5.02 Total: 15.99 kcal Total LS contribution 6.24 Total: 6.24 kcal Total: -32.40 -9.18 -41.58 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. ZINC001152386659.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 -16.216 kcal (2) G-P(sol) polarization free energy of solvation -32.403 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -48.619 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.180 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -41.583 kcal (6) G-S(sol) free energy of system = (1) + (5) -57.799 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.81 seconds