Wall clock time and date at job start Sat Apr 11 2020 06:12:46 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 O 1.42897 * 1 3 3 C 1.42897 * 113.99757 * 2 1 4 4 H 1.08995 * 110.06143 * 28.58058 * 3 2 1 5 5 C 1.54268 * 110.03108 * 267.16128 * 3 2 1 6 6 C 1.54882 * 104.19921 * 264.32699 * 5 3 2 7 7 C 1.54972 * 102.77637 * 322.08264 * 6 5 3 8 8 C 1.53878 * 110.03360 * 149.99744 * 3 2 1 9 9 H 1.09001 * 110.03068 * 359.95128 * 8 3 2 10 10 C 1.50704 * 110.03322 * 238.56526 * 8 3 2 11 11 O 1.21277 * 119.99655 * 343.73329 * 10 8 3 12 12 N 1.34774 * 119.99673 * 163.72553 * 10 8 3 13 13 C 1.46923 * 120.63325 * 355.74486 * 12 10 8 14 14 C 1.53195 * 108.77649 * 233.58347 * 13 12 10 15 15 C 1.53038 * 109.31214 * 305.36589 * 14 13 12 16 16 N 1.46499 * 109.46087 * 181.38308 * 15 14 13 17 17 C 1.36929 * 119.99986 * 300.00366 * 16 15 14 18 18 H 1.08004 * 120.00320 * 41.45630 * 17 16 15 19 19 C 1.38815 * 120.00161 * 221.45868 * 17 16 15 20 20 N 1.31623 * 119.99827 * 19.75166 * 19 17 16 21 21 Si 1.86800 * 120.00463 * 199.74906 * 19 17 16 22 22 H 1.48497 * 109.47222 * 179.97438 * 21 19 17 23 23 H 1.48506 * 109.46854 * 300.00253 * 21 19 17 24 24 H 1.48502 * 109.46761 * 59.99680 * 21 19 17 25 25 C 1.46502 * 119.99957 * 120.00135 * 16 15 14 26 26 C 1.53001 * 109.46905 * 276.28071 * 25 16 15 27 27 O 1.42909 * 109.47126 * 65.00123 * 26 25 16 28 28 C 1.53044 * 109.53873 * 61.36338 * 15 14 13 29 29 C 1.46928 * 120.62598 * 175.72144 * 12 10 8 30 30 H 1.09001 * 109.47491 * 300.00036 * 1 2 3 31 31 H 1.08997 * 109.47254 * 60.00749 * 1 2 3 32 32 H 1.09006 * 109.46639 * 180.02562 * 1 2 3 33 33 H 1.08998 * 110.48320 * 23.00374 * 5 3 2 34 34 H 1.08999 * 110.48468 * 145.64260 * 5 3 2 35 35 H 1.08996 * 110.75912 * 80.37216 * 6 5 3 36 36 H 1.09001 * 110.76041 * 203.56007 * 6 5 3 37 37 H 1.08995 * 110.47534 * 279.23591 * 7 6 5 38 38 H 1.09005 * 110.52541 * 156.56562 * 7 6 5 39 39 H 1.09002 * 109.58564 * 113.79502 * 13 12 10 40 40 H 1.08995 * 109.58717 * 353.37380 * 13 12 10 41 41 H 1.09002 * 109.49635 * 185.41380 * 14 13 12 42 42 H 1.08997 * 109.51901 * 65.33499 * 14 13 12 43 43 H 1.09002 * 109.46155 * 301.35896 * 15 14 13 44 44 H 0.96999 * 120.00379 * 180.02562 * 20 19 17 45 45 H 1.08990 * 109.47264 * 36.27884 * 25 16 15 46 46 H 1.08998 * 109.46863 * 156.28337 * 25 16 15 47 47 H 1.08994 * 109.47152 * 184.99730 * 26 25 16 48 48 H 1.08996 * 109.47356 * 305.00242 * 26 25 16 49 49 H 0.96700 * 114.00028 * 180.02562 * 27 26 25 50 50 H 1.09000 * 109.49446 * 58.58619 * 28 15 14 51 51 H 1.08999 * 109.50133 * 178.68252 * 28 15 14 52 52 H 1.09004 * 109.58564 * 246.20547 * 29 12 10 53 53 H 1.08995 * 109.58899 * 6.48577 * 29 12 10 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 8 1.4290 0.0000 0.0000 3 6 2.0101 1.3054 0.0000 4 1 1.3408 2.0127 0.4898 5 6 2.2906 1.7590 -1.4476 6 6 3.7774 1.3922 -1.6793 7 6 4.4274 1.7149 -0.3100 8 6 3.3683 1.2779 0.7229 9 1 3.5836 0.2688 1.0745 10 6 3.3541 2.2371 1.8851 11 8 2.4956 3.0909 1.9562 12 7 4.2952 2.1461 2.8455 13 6 5.2852 1.0607 2.8230 14 6 5.2572 0.3397 4.1744 15 6 5.4675 1.3590 5.2963 16 7 5.4743 0.6684 6.5883 17 6 4.3758 -0.0438 6.9897 18 1 3.8433 -0.6604 6.2807 19 6 3.9465 0.0268 8.3079 20 7 4.3190 1.0345 9.0683 21 14 2.8403 -1.3084 9.0028 22 1 2.5265 -1.0026 10.4217 23 1 1.5809 -1.3659 8.2180 24 1 3.5346 -2.6186 8.9212 25 6 6.6563 0.7396 7.4508 26 6 7.6710 -0.3188 7.0138 27 8 8.1427 -0.0128 5.6999 28 6 4.3335 2.3866 5.2735 29 6 4.3510 3.1307 3.9346 30 1 -0.3634 0.5138 0.8900 31 1 -0.3633 0.5137 -0.8900 32 1 -0.3633 -1.0278 0.0005 33 1 1.6513 1.2200 -2.1468 34 1 2.1432 2.8345 -1.5457 35 1 3.8818 0.3333 -1.9157 36 1 4.2085 2.0071 -2.4693 37 1 4.6257 2.7833 -0.2244 38 1 5.3465 1.1436 -0.1791 39 1 6.2783 1.4755 2.6506 40 1 5.0379 0.3570 2.0282 41 1 6.0524 -0.4052 4.2058 42 1 4.2931 -0.1516 4.3051 43 1 6.4207 1.8673 5.1512 44 1 4.0193 1.0837 9.9895 45 1 7.1060 1.7292 7.3699 46 1 6.3633 0.5570 8.4846 47 1 8.5107 -0.3260 7.7086 48 1 7.1945 -1.2991 7.0096 49 1 8.7905 -0.6439 5.3577 50 1 3.3778 1.8763 5.3936 51 1 4.4712 3.0985 6.0872 52 1 5.2680 3.7144 3.8529 53 1 3.4887 3.7944 3.8717 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 ZINC001098410171.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 06:12:46 Heat of formation + Delta-G solvation = -116.974960 kcal Electronic energy + Delta-G solvation = -32177.748930 eV Core-core repulsion = 28049.714257 eV Total energy + Delta-G solvation = -4128.034674 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.83 seconds Orbital eigenvalues (eV) -40.46688 -38.61370 -37.37045 -36.19658 -35.75128 -34.64312 -32.07064 -30.93046 -30.34535 -29.10747 -28.34385 -27.56474 -26.31579 -24.85309 -23.33026 -22.72116 -21.48405 -20.86764 -20.43448 -19.58176 -18.52474 -17.71485 -16.77181 -16.28552 -16.20770 -15.86305 -15.40138 -15.24132 -14.88866 -14.69331 -14.49753 -14.14842 -13.94729 -13.55421 -13.50731 -13.42168 -13.11208 -12.79223 -12.63390 -12.45927 -12.08298 -11.94759 -11.70094 -11.60405 -11.48677 -11.38640 -11.20426 -11.15235 -10.97564 -10.88180 -10.76087 -10.67446 -10.55373 -10.42136 -10.17877 -9.89545 -9.81588 -9.64219 -9.46674 -9.36055 -9.15799 -8.46294 -8.26923 -6.48174 -5.80768 -3.39383 2.81603 3.17556 3.35337 3.41222 3.43356 3.79392 4.32875 4.43767 4.46735 4.73241 4.95162 5.09249 5.15506 5.18958 5.25953 5.28260 5.30051 5.31121 5.35737 5.44736 5.51473 5.58506 5.63130 5.65092 5.68163 5.72404 5.77678 5.83877 5.89847 5.95357 5.99095 6.06124 6.14572 6.19289 6.22970 6.28003 6.42151 6.49324 6.55502 6.70448 6.86802 6.95799 7.03906 7.16506 7.27397 7.36725 7.49534 7.71892 7.84047 8.27742 8.40196 8.55844 9.21750 9.82215 10.45932 11.20813 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.012639 B = 0.003393 C = 0.003020 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2214.815655 B = 8251.354051 C = 9270.737131 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.032 3.968 2 O -0.384 6.384 3 C 0.090 3.910 4 H 0.087 0.913 5 C -0.143 4.143 6 C -0.118 4.118 7 C -0.108 4.108 8 C -0.114 4.114 9 H 0.110 0.890 10 C 0.522 3.478 11 O -0.553 6.553 12 N -0.598 5.598 13 C 0.108 3.892 14 C -0.136 4.136 15 C 0.189 3.811 16 N -0.573 5.573 17 C -0.257 4.257 18 H 0.056 0.944 19 C 0.017 3.983 20 N -0.888 5.888 21 Si 0.892 3.108 22 H -0.291 1.291 23 H -0.281 1.281 24 H -0.283 1.283 25 C 0.159 3.841 26 C 0.053 3.947 27 O -0.567 6.567 28 C -0.134 4.134 29 C 0.112 3.888 30 H 0.043 0.957 31 H 0.039 0.961 32 H 0.084 0.916 33 H 0.072 0.928 34 H 0.074 0.926 35 H 0.072 0.928 36 H 0.068 0.932 37 H 0.071 0.929 38 H 0.077 0.923 39 H 0.065 0.935 40 H 0.076 0.924 41 H 0.073 0.927 42 H 0.062 0.938 43 H 0.053 0.947 44 H 0.255 0.745 45 H 0.028 0.972 46 H 0.097 0.903 47 H 0.022 0.978 48 H 0.040 0.960 49 H 0.356 0.644 50 H 0.068 0.932 51 H 0.069 0.931 52 H 0.059 0.941 53 H 0.082 0.918 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 2.442 -0.521 -17.634 17.810 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 -0.065 4.065 2 O -0.302 6.302 3 C 0.032 3.968 4 H 0.105 0.895 5 C -0.181 4.181 6 C -0.156 4.156 7 C -0.146 4.146 8 C -0.135 4.135 9 H 0.127 0.873 10 C 0.310 3.690 11 O -0.433 6.433 12 N -0.330 5.330 13 C -0.015 4.015 14 C -0.176 4.176 15 C 0.081 3.919 16 N -0.292 5.292 17 C -0.387 4.387 18 H 0.074 0.926 19 C -0.184 4.184 20 N -0.530 5.530 21 Si 0.722 3.278 22 H -0.217 1.217 23 H -0.207 1.207 24 H -0.209 1.209 25 C 0.032 3.968 26 C -0.026 4.026 27 O -0.370 6.370 28 C -0.174 4.174 29 C -0.011 4.011 30 H 0.062 0.938 31 H 0.057 0.943 32 H 0.103 0.897 33 H 0.091 0.909 34 H 0.093 0.907 35 H 0.091 0.909 36 H 0.087 0.913 37 H 0.090 0.910 38 H 0.096 0.904 39 H 0.084 0.916 40 H 0.094 0.906 41 H 0.092 0.908 42 H 0.080 0.920 43 H 0.071 0.929 44 H 0.065 0.935 45 H 0.046 0.954 46 H 0.114 0.886 47 H 0.040 0.960 48 H 0.058 0.942 49 H 0.199 0.801 50 H 0.087 0.913 51 H 0.088 0.912 52 H 0.077 0.923 53 H 0.101 0.899 Dipole moment (debyes) X Y Z Total from point charges 1.645 0.337 -17.274 17.356 hybrid contribution -0.388 -1.146 0.650 1.374 sum 1.256 -0.810 -16.624 16.691 Atomic orbital electron populations 1.22773 0.81143 1.02524 1.00047 1.87882 1.19619 1.27771 1.94967 1.22706 0.94115 0.85021 0.94966 0.89497 1.22838 0.97353 1.01290 0.96570 1.22459 0.94899 1.01698 0.96521 1.22290 0.97045 1.01793 0.93424 1.21968 0.96227 1.00792 0.94525 0.87256 1.20301 0.80753 0.84930 0.83052 1.90627 1.36903 1.37948 1.77777 1.48111 1.30968 1.28785 1.25160 1.21902 0.91349 0.88645 0.99620 1.22288 1.02499 0.99564 0.93241 1.20198 0.94911 0.90306 0.86437 1.43655 1.11766 1.57305 1.16501 1.18862 1.05837 1.19864 0.94143 0.92616 1.25266 0.97691 0.96426 0.99009 1.70012 1.47265 1.27886 1.07843 0.86550 0.80950 0.82335 0.78001 1.21662 1.20717 1.20943 1.20882 0.85003 0.93635 0.97280 1.23230 0.96066 1.01184 0.82165 1.86584 1.62843 1.54053 1.33544 1.22311 1.02171 0.99135 0.93804 1.21754 1.01764 0.90902 0.86667 0.93817 0.94251 0.89748 0.90946 0.90735 0.90924 0.91297 0.91049 0.90428 0.91640 0.90605 0.90841 0.91968 0.92904 0.93545 0.95358 0.88563 0.96029 0.94184 0.80057 0.91346 0.91217 0.92268 0.89944 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 16. 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 0.03 0.34 10.85 101.05 1.10 1.43 16 2 O -0.38 -5.09 10.25 -35.23 -0.36 -5.45 16 3 C 0.09 1.16 2.95 -25.61 -0.08 1.09 16 4 H 0.09 1.29 6.20 -51.93 -0.32 0.97 16 5 C -0.14 -1.46 6.57 -25.08 -0.16 -1.63 16 6 C -0.12 -1.07 6.91 -24.70 -0.17 -1.24 16 7 C -0.11 -1.10 6.11 -25.03 -0.15 -1.26 16 8 C -0.11 -1.48 2.18 -90.65 -0.20 -1.68 16 9 H 0.11 1.43 6.33 -51.93 -0.33 1.10 16 10 C 0.52 8.48 6.76 -10.98 -0.07 8.41 16 11 O -0.55 -10.64 14.77 5.56 0.08 -10.56 16 12 N -0.60 -9.58 2.97 -172.77 -0.51 -10.10 16 13 C 0.11 1.54 6.20 -3.71 -0.02 1.52 16 14 C -0.14 -2.41 5.30 -26.61 -0.14 -2.55 16 15 C 0.19 3.82 1.94 -67.89 -0.13 3.69 16 16 N -0.57 -13.43 2.33 -165.62 -0.39 -13.81 16 17 C -0.26 -6.67 8.17 -15.06 -0.12 -6.80 16 18 H 0.06 1.49 6.94 -52.48 -0.36 1.12 16 19 C 0.02 0.45 4.89 -17.43 -0.09 0.36 16 20 N -0.89 -24.70 11.76 55.49 0.65 -24.05 16 21 Si 0.89 21.18 29.60 -169.99 -5.03 16.15 16 22 H -0.29 -6.96 7.11 56.52 0.40 -6.56 16 23 H -0.28 -6.73 7.11 56.52 0.40 -6.32 16 24 H -0.28 -6.65 7.11 56.52 0.40 -6.25 16 25 C 0.16 3.56 5.59 -4.04 -0.02 3.54 16 26 C 0.05 0.99 7.39 37.16 0.27 1.27 16 27 O -0.57 -9.49 12.12 -35.23 -0.43 -9.91 16 28 C -0.13 -2.73 5.31 -26.61 -0.14 -2.88 16 29 C 0.11 1.92 6.44 -3.71 -0.02 1.90 16 30 H 0.04 0.48 8.10 -51.93 -0.42 0.06 16 31 H 0.04 0.35 8.14 -51.93 -0.42 -0.07 16 32 H 0.08 0.75 8.14 -51.93 -0.42 0.33 16 33 H 0.07 0.68 8.07 -51.93 -0.42 0.26 16 34 H 0.07 0.74 8.14 -51.93 -0.42 0.32 16 35 H 0.07 0.64 8.14 -51.93 -0.42 0.22 16 36 H 0.07 0.52 8.14 -51.93 -0.42 0.10 16 37 H 0.07 0.77 7.85 -51.93 -0.41 0.36 16 38 H 0.08 0.68 8.04 -51.93 -0.42 0.27 16 39 H 0.07 0.85 8.14 -51.93 -0.42 0.43 16 40 H 0.08 0.93 5.35 -51.93 -0.28 0.65 16 41 H 0.07 1.30 7.63 -51.93 -0.40 0.91 16 42 H 0.06 1.25 7.09 -51.93 -0.37 0.88 16 43 H 0.05 1.07 7.54 -51.93 -0.39 0.68 16 44 H 0.25 6.92 8.31 -40.82 -0.34 6.58 16 45 H 0.03 0.64 8.05 -51.93 -0.42 0.22 16 46 H 0.10 2.41 5.86 -51.93 -0.30 2.11 16 47 H 0.02 0.36 8.14 -51.93 -0.42 -0.06 16 48 H 0.04 0.78 8.14 -51.93 -0.42 0.36 16 49 H 0.36 4.21 9.12 45.56 0.42 4.63 16 50 H 0.07 1.59 7.71 -51.93 -0.40 1.19 16 51 H 0.07 1.53 8.14 -51.93 -0.42 1.11 16 52 H 0.06 0.92 8.14 -51.93 -0.42 0.50 16 53 H 0.08 1.49 7.00 -51.93 -0.36 1.13 16 LS Contribution 405.26 15.07 6.11 6.11 Total: -1.00 -30.66 405.26 -8.58 -39.24 By element: Atomic # 1 Polarization: 15.76 SS G_CDS: -8.55 Total: 7.22 kcal Atomic # 6 Polarization: 5.32 SS G_CDS: -0.16 Total: 5.17 kcal Atomic # 7 Polarization: -47.71 SS G_CDS: -0.25 Total: -47.96 kcal Atomic # 8 Polarization: -25.22 SS G_CDS: -0.71 Total: -25.92 kcal Atomic # 14 Polarization: 21.18 SS G_CDS: -5.03 Total: 16.15 kcal Total LS contribution 6.11 Total: 6.11 kcal Total: -30.66 -8.58 -39.24 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. ZINC001098410171.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 -77.737 kcal (2) G-P(sol) polarization free energy of solvation -30.660 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -108.396 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.579 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -39.238 kcal (6) G-S(sol) free energy of system = (1) + (5) -116.975 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.83 seconds