Wall clock time and date at job start Sat Apr 11 2020 06:12:20 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 1.53002 * 1 3 3 O 1.42900 * 109.46770 * 2 1 4 4 C 1.42899 * 113.99836 * 182.97474 * 3 2 1 5 5 H 1.09000 * 109.47121 * 346.84755 * 4 3 2 6 6 C 1.50702 * 109.47155 * 226.84933 * 4 3 2 7 7 O 1.21277 * 120.00016 * 329.51259 * 6 4 3 8 8 N 1.34773 * 119.99958 * 149.51437 * 6 4 3 9 9 C 1.46969 * 120.59671 * 175.02074 * 8 6 4 10 10 C 1.53368 * 108.63357 * 235.24707 * 9 8 6 11 11 H 1.08999 * 109.75047 * 70.40169 * 10 9 8 12 12 C 1.53002 * 109.60775 * 190.82564 * 10 9 8 13 13 N 1.46956 * 108.63862 * 310.57357 * 10 9 8 14 14 C 1.36941 * 120.59724 * 235.20849 * 13 10 9 15 15 H 1.07992 * 120.00441 * 125.20002 * 14 13 10 16 16 C 1.38814 * 119.99559 * 305.20722 * 14 13 10 17 17 N 1.31623 * 119.99972 * 166.12062 * 16 14 13 18 18 Si 1.86806 * 119.99856 * 346.11441 * 16 14 13 19 19 H 1.48500 * 109.47305 * 273.53941 * 18 16 14 20 20 H 1.48496 * 109.46983 * 33.54911 * 18 16 14 21 21 H 1.48506 * 109.46903 * 153.54082 * 18 16 14 22 22 C 1.46967 * 118.81359 * 55.47628 * 13 10 9 23 23 H 1.09006 * 109.60658 * 64.26675 * 22 13 10 24 24 C 1.52996 * 109.61130 * 184.77910 * 22 13 10 25 25 C 1.46969 * 120.59803 * 355.04036 * 8 6 4 26 26 C 1.53001 * 109.47437 * 106.84691 * 4 3 2 27 27 H 1.08995 * 110.80181 * 65.23636 * 26 4 3 28 28 C 1.54812 * 110.90600 * 301.61180 * 26 4 3 29 29 C 1.54099 * 104.18638 * 220.91901 * 28 26 4 30 30 O 1.43738 * 107.29391 * 357.96841 * 29 28 26 31 31 C 1.44422 * 107.00049 * 26.49272 * 30 29 28 32 32 H 1.08997 * 109.47274 * 299.99844 * 1 2 3 33 33 H 1.09006 * 109.47347 * 59.99739 * 1 2 3 34 34 H 1.08998 * 109.47366 * 179.97438 * 1 2 3 35 35 H 1.08997 * 109.46750 * 240.00110 * 2 1 3 36 36 H 1.09000 * 109.46760 * 119.99931 * 2 1 3 37 37 H 1.08997 * 109.61243 * 115.49964 * 9 8 6 38 38 H 1.09001 * 109.60595 * 354.99031 * 9 8 6 39 39 H 1.09001 * 109.47304 * 179.14538 * 12 10 9 40 40 H 1.08999 * 109.47248 * 299.14902 * 12 10 9 41 41 H 1.09002 * 109.46785 * 59.14719 * 12 10 9 42 42 H 0.96994 * 119.99573 * 179.97438 * 17 16 14 43 43 H 1.09005 * 109.47310 * 64.35303 * 24 22 13 44 44 H 1.09004 * 109.47326 * 184.34570 * 24 22 13 45 45 H 1.09001 * 109.47432 * 304.34925 * 24 22 13 46 46 H 1.09002 * 109.61160 * 244.50011 * 25 8 6 47 47 H 1.09010 * 109.60714 * 5.00444 * 25 8 6 48 48 H 1.09001 * 110.48796 * 339.59927 * 28 26 4 49 49 H 1.09007 * 110.48856 * 102.10897 * 28 26 4 50 50 H 1.08998 * 109.87588 * 117.39547 * 29 28 26 51 51 H 1.08997 * 109.87596 * 238.54325 * 29 28 26 52 52 H 1.09002 * 110.65241 * 201.48226 * 31 30 29 53 53 H 1.08997 * 110.60614 * 78.46895 * 31 30 29 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 8 2.0063 1.3473 0.0000 4 6 3.4291 1.4608 -0.0677 5 1 3.8809 0.4882 0.1274 6 6 3.9038 2.4512 0.9641 7 8 3.1914 3.3777 1.2882 8 7 5.1200 2.3075 1.5268 9 6 5.6409 3.3235 2.4523 10 6 7.0029 3.8041 1.9364 11 1 6.8659 4.3968 1.0319 12 6 7.6872 4.6543 3.0087 13 7 7.8322 2.6289 1.6351 14 6 9.0684 2.4833 2.2061 15 1 9.3062 1.5857 2.7575 16 6 10.0157 3.4895 2.0762 17 7 11.0900 3.4841 2.8367 18 14 9.7660 4.8512 0.8220 19 1 10.3003 4.4166 -0.4936 20 1 8.3164 5.1469 0.6945 21 1 10.4829 6.0728 1.2683 22 6 7.3138 1.6157 0.7053 23 1 7.1960 2.0546 -0.2855 24 6 8.2865 0.4367 0.6361 25 6 5.9495 1.1323 1.2255 26 6 3.8367 1.9418 -1.4618 27 1 3.4729 2.9530 -1.6441 28 6 3.3297 0.9673 -2.5526 29 6 4.5020 0.8718 -3.5482 30 8 5.5359 1.7519 -3.0765 31 6 5.3737 1.8653 -1.6459 32 1 -0.3634 0.5138 0.8900 33 1 -0.3634 0.5139 -0.8900 34 1 -0.3634 -1.0276 -0.0005 35 1 1.8933 -0.5138 -0.8900 36 1 1.8933 -0.5138 0.8900 37 1 5.7583 2.8884 3.4447 38 1 4.9495 4.1649 2.4985 39 1 8.6613 4.9820 2.6457 40 1 7.0702 5.5251 3.2304 41 1 7.8175 4.0614 3.9140 42 1 11.7521 4.1871 2.7456 43 1 8.3360 -0.0511 1.6096 44 1 7.9394 -0.2774 -0.1107 45 1 9.2770 0.7985 0.3601 46 1 6.0889 0.5412 2.1307 47 1 5.4619 0.5265 0.4616 48 1 3.1151 -0.0103 -2.1209 49 1 2.4428 1.3702 -3.0419 50 1 4.8747 -0.1519 -3.5847 51 1 4.1729 1.1841 -4.5392 52 1 5.8502 2.7731 -1.2758 53 1 5.7773 0.9865 -1.1432 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 ZINC000880453088.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 06:12:20 Heat of formation + Delta-G solvation = -71.906333 kcal Electronic energy + Delta-G solvation = -33580.942128 eV Core-core repulsion = 29454.861777 eV Total energy + Delta-G solvation = -4126.080351 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.81 seconds Orbital eigenvalues (eV) -40.81223 -39.08970 -38.19201 -37.23759 -34.55293 -33.37197 -32.97631 -31.67902 -31.32366 -29.79577 -28.28176 -27.14201 -26.33809 -25.36347 -23.54300 -23.15619 -22.78950 -21.10558 -20.72743 -19.82992 -19.07482 -17.86422 -16.81146 -16.78160 -16.49161 -16.25039 -15.53750 -15.37004 -15.25362 -15.09372 -14.68152 -14.67307 -14.05357 -13.77573 -13.70313 -13.47431 -13.03849 -12.80464 -12.74168 -12.53263 -12.35414 -12.25772 -12.14460 -11.92900 -11.80630 -11.64924 -11.62422 -11.34686 -11.27474 -11.20083 -10.97892 -10.90797 -10.55999 -10.47524 -10.24375 -10.06729 -10.02611 -9.92650 -9.76165 -9.38657 -9.18818 -8.62726 -8.30120 -6.53748 -6.05752 -3.71525 2.65835 2.85232 3.33172 3.42969 3.49110 3.61466 3.79286 4.22831 4.43297 4.46270 4.54249 4.60374 4.72990 4.78390 4.83061 4.86720 4.98805 5.06552 5.10335 5.16976 5.25767 5.36392 5.38267 5.41596 5.50037 5.57864 5.62215 5.65549 5.69414 5.79371 5.81606 5.85862 5.87483 5.94911 6.02250 6.07991 6.16443 6.25881 6.29285 6.41753 6.56835 6.69440 6.71478 6.78171 6.88545 6.94742 7.07255 7.22331 7.64962 8.05066 8.34311 8.44808 8.91183 9.60278 10.12098 11.05823 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.014938 B = 0.004234 C = 0.003792 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1873.991680 B = 6611.941879 C = 7382.021528 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 0.049 3.951 3 O -0.353 6.353 4 C 0.086 3.914 5 H 0.086 0.914 6 C 0.506 3.494 7 O -0.530 6.530 8 N -0.597 5.597 9 C 0.102 3.898 10 C 0.148 3.852 11 H 0.042 0.958 12 C -0.134 4.134 13 N -0.595 5.595 14 C -0.274 4.274 15 H 0.073 0.927 16 C 0.056 3.944 17 N -0.899 5.899 18 Si 0.869 3.131 19 H -0.293 1.293 20 H -0.251 1.251 21 H -0.298 1.298 22 C 0.145 3.855 23 H 0.042 0.958 24 C -0.132 4.132 25 C 0.082 3.918 26 C -0.131 4.131 27 H 0.099 0.901 28 C -0.146 4.146 29 C 0.045 3.955 30 O -0.371 6.371 31 C 0.045 3.955 32 H 0.064 0.936 33 H 0.063 0.937 34 H 0.071 0.929 35 H 0.052 0.948 36 H 0.050 0.950 37 H 0.069 0.931 38 H 0.082 0.918 39 H 0.064 0.936 40 H 0.039 0.961 41 H 0.068 0.932 42 H 0.264 0.736 43 H 0.056 0.944 44 H 0.038 0.962 45 H 0.074 0.926 46 H 0.074 0.926 47 H 0.072 0.928 48 H 0.075 0.925 49 H 0.082 0.918 50 H 0.059 0.941 51 H 0.083 0.917 52 H 0.102 0.898 53 H 0.075 0.925 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -16.108 -9.159 -8.311 20.309 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 -0.207 4.207 2 C -0.028 4.028 3 O -0.271 6.271 4 C 0.024 3.976 5 H 0.104 0.896 6 C 0.292 3.708 7 O -0.406 6.406 8 N -0.330 5.330 9 C -0.022 4.022 10 C 0.042 3.958 11 H 0.060 0.940 12 C -0.191 4.191 13 N -0.321 5.321 14 C -0.403 4.403 15 H 0.090 0.910 16 C -0.146 4.146 17 N -0.538 5.538 18 Si 0.699 3.301 19 H -0.221 1.221 20 H -0.176 1.176 21 H -0.225 1.225 22 C 0.038 3.962 23 H 0.059 0.941 24 C -0.189 4.189 25 C -0.042 4.042 26 C -0.150 4.150 27 H 0.118 0.882 28 C -0.183 4.183 29 C -0.032 4.032 30 O -0.289 6.289 31 C -0.032 4.032 32 H 0.084 0.916 33 H 0.082 0.918 34 H 0.090 0.910 35 H 0.070 0.930 36 H 0.068 0.932 37 H 0.087 0.913 38 H 0.101 0.899 39 H 0.082 0.918 40 H 0.058 0.942 41 H 0.087 0.913 42 H 0.074 0.926 43 H 0.075 0.925 44 H 0.057 0.943 45 H 0.093 0.907 46 H 0.092 0.908 47 H 0.090 0.910 48 H 0.093 0.907 49 H 0.101 0.899 50 H 0.078 0.922 51 H 0.102 0.898 52 H 0.121 0.879 53 H 0.093 0.907 Dipole moment (debyes) X Y Z Total from point charges -16.282 -8.325 -8.176 20.032 hybrid contribution 0.083 0.400 -0.488 0.636 sum -16.199 -7.925 -8.663 20.007 Atomic orbital electron populations 1.21719 0.93353 1.02186 1.03415 1.22751 0.96085 0.83784 1.00162 1.88053 1.18347 1.26142 1.94597 1.21922 0.83505 0.98738 0.93430 0.89616 1.20440 0.81560 0.86667 0.82151 1.90670 1.54329 1.33281 1.62335 1.48040 1.15986 1.23515 1.45461 1.22322 0.96637 0.91114 0.92086 1.21269 0.88854 0.89425 0.96232 0.94011 1.21918 0.99923 0.97811 0.99462 1.44374 1.16530 1.21255 1.49982 1.18404 0.87018 1.05719 1.29134 0.90999 1.25914 0.94441 0.98178 0.96108 1.69813 1.11179 1.34240 1.38600 0.87427 0.79345 0.81467 0.81868 1.22081 1.17606 1.22520 1.21292 0.90538 0.91460 0.92900 0.94051 1.21706 1.00585 0.95993 1.00664 1.22799 0.93553 0.87031 1.00834 1.23088 0.96889 1.01897 0.93140 0.88235 1.22993 0.99428 0.99668 0.96235 1.23179 0.87364 0.94539 0.98121 1.88940 1.51674 1.67391 1.20934 1.24173 0.93497 1.03248 0.82234 0.91640 0.91759 0.91037 0.92966 0.93221 0.91285 0.89927 0.91797 0.94238 0.91286 0.92584 0.92470 0.94262 0.90696 0.90794 0.90974 0.90670 0.89895 0.92227 0.89825 0.87949 0.90720 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 -0.15 -1.18 10.28 37.16 0.38 -0.80 16 2 C 0.05 0.45 6.20 37.16 0.23 0.68 16 3 O -0.35 -4.70 9.41 -52.99 -0.50 -5.19 16 4 C 0.09 1.11 1.75 -27.88 -0.05 1.07 16 5 H 0.09 0.93 5.40 -51.93 -0.28 0.65 16 6 C 0.51 8.47 6.56 -10.99 -0.07 8.40 16 7 O -0.53 -10.80 16.17 -12.20 -0.20 -11.00 16 8 N -0.60 -9.86 2.92 -172.21 -0.50 -10.36 16 9 C 0.10 1.84 5.89 -3.60 -0.02 1.82 16 10 C 0.15 3.02 2.40 -67.49 -0.16 2.86 16 11 H 0.04 0.91 6.35 -51.93 -0.33 0.58 16 12 C -0.13 -2.78 7.48 37.16 0.28 -2.50 16 13 N -0.60 -12.69 2.21 -156.77 -0.35 -13.04 16 14 C -0.27 -6.86 7.19 -15.06 -0.11 -6.97 16 15 H 0.07 1.98 7.52 -52.49 -0.39 1.59 16 16 C 0.06 1.48 4.22 -17.43 -0.07 1.41 16 17 N -0.90 -25.74 13.97 55.49 0.78 -24.96 16 18 Si 0.87 21.19 24.91 -169.99 -4.23 16.95 16 19 H -0.29 -7.40 7.11 56.52 0.40 -7.00 16 20 H -0.25 -5.78 4.16 56.52 0.24 -5.55 16 21 H -0.30 -7.41 7.11 56.52 0.40 -7.01 16 22 C 0.14 2.54 3.07 -67.26 -0.21 2.33 16 23 H 0.04 0.75 4.93 -51.93 -0.26 0.49 16 24 C -0.13 -2.19 8.21 37.16 0.31 -1.89 16 25 C 0.08 1.21 4.81 -3.37 -0.02 1.19 16 26 C -0.13 -1.62 2.86 -88.61 -0.25 -1.87 16 27 H 0.10 1.40 8.14 -51.93 -0.42 0.98 16 28 C -0.15 -1.36 6.10 -25.20 -0.15 -1.52 16 29 C 0.04 0.44 7.70 37.73 0.29 0.73 16 30 O -0.37 -5.14 11.52 -35.23 -0.41 -5.55 16 31 C 0.04 0.60 4.69 38.21 0.18 0.78 16 32 H 0.06 0.58 8.14 -51.93 -0.42 0.15 16 33 H 0.06 0.51 8.14 -51.93 -0.42 0.08 16 34 H 0.07 0.41 8.14 -51.93 -0.42 -0.02 16 35 H 0.05 0.39 5.96 -51.93 -0.31 0.08 16 36 H 0.05 0.43 8.14 -51.93 -0.42 0.01 16 37 H 0.07 1.24 8.12 -51.93 -0.42 0.82 16 38 H 0.08 1.52 7.02 -51.93 -0.36 1.15 16 39 H 0.06 1.48 2.64 -51.93 -0.14 1.34 16 40 H 0.04 0.70 8.14 -51.93 -0.42 0.28 16 41 H 0.07 1.48 7.91 -51.93 -0.41 1.07 16 42 H 0.26 7.29 8.31 -40.82 -0.34 6.95 16 43 H 0.06 0.97 7.73 -51.93 -0.40 0.57 16 44 H 0.04 0.52 8.14 -51.93 -0.42 0.09 16 45 H 0.07 1.45 7.50 -51.93 -0.39 1.06 16 46 H 0.07 1.09 8.11 -51.93 -0.42 0.67 16 47 H 0.07 0.85 3.49 -51.92 -0.18 0.67 16 48 H 0.07 0.58 5.73 -51.93 -0.30 0.29 16 49 H 0.08 0.72 8.14 -51.93 -0.42 0.30 16 50 H 0.06 0.50 8.14 -51.93 -0.42 0.08 16 51 H 0.08 0.71 8.14 -51.93 -0.42 0.29 16 52 H 0.10 1.60 6.91 -51.93 -0.36 1.24 16 53 H 0.07 0.92 4.74 -51.93 -0.25 0.67 16 LS Contribution 378.70 15.07 5.71 5.71 Total: -1.00 -31.25 378.70 -7.88 -39.13 By element: Atomic # 1 Polarization: 11.31 SS G_CDS: -8.73 Total: 2.58 kcal Atomic # 6 Polarization: 5.18 SS G_CDS: 0.55 Total: 5.73 kcal Atomic # 7 Polarization: -48.29 SS G_CDS: -0.07 Total: -48.37 kcal Atomic # 8 Polarization: -20.64 SS G_CDS: -1.10 Total: -21.74 kcal Atomic # 14 Polarization: 21.19 SS G_CDS: -4.23 Total: 16.95 kcal Total LS contribution 5.71 Total: 5.71 kcal Total: -31.25 -7.88 -39.13 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. ZINC000880453088.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 -32.772 kcal (2) G-P(sol) polarization free energy of solvation -31.251 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -64.023 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -7.883 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -39.135 kcal (6) G-S(sol) free energy of system = (1) + (5) -71.906 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.82 seconds