Wall clock time and date at job start Sat Apr 11 2020 06:10:52 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 1.42899 * 109.46895 * 2 1 4 4 C 1.42898 * 114.00266 * 180.02562 * 3 2 1 5 5 H 1.08998 * 109.46848 * 29.99990 * 4 3 2 6 6 C 1.50699 * 109.47207 * 270.00078 * 4 3 2 7 7 O 1.21280 * 119.99834 * 353.96327 * 6 4 3 8 8 N 1.34776 * 120.00138 * 173.96005 * 6 4 3 9 9 C 1.46499 * 120.00060 * 185.29684 * 8 6 4 10 10 C 1.53000 * 109.47025 * 174.88919 * 9 8 6 11 11 H 1.08996 * 109.71257 * 300.23554 * 10 9 8 12 12 C 1.52885 * 109.61698 * 179.97438 * 10 9 8 13 13 O 1.42961 * 109.29397 * 188.11806 * 12 10 9 14 14 C 1.42954 * 114.16736 * 62.45311 * 13 12 10 15 15 C 1.53299 * 109.22132 * 297.41324 * 14 13 12 16 16 N 1.47150 * 108.38530 * 52.30575 * 15 14 13 17 17 C 1.36933 * 120.98396 * 129.43757 * 16 15 14 18 18 H 1.07993 * 120.00198 * 212.10345 * 17 16 15 19 19 C 1.38815 * 119.99395 * 32.10697 * 17 16 15 20 20 N 1.31612 * 120.00586 * 4.78162 * 19 17 16 21 21 Si 1.86804 * 119.99549 * 184.78652 * 19 17 16 22 22 H 1.48507 * 109.47093 * 271.63543 * 21 19 17 23 23 H 1.48496 * 109.47222 * 31.63541 * 21 19 17 24 24 H 1.48498 * 109.47342 * 151.63739 * 21 19 17 25 25 C 1.53001 * 109.47372 * 149.99693 * 4 3 2 26 26 C 1.54267 * 110.02812 * 58.69513 * 25 4 3 27 27 C 1.54897 * 104.19320 * 217.10412 * 26 25 4 28 28 C 1.54886 * 102.74794 * 37.94009 * 27 26 25 29 29 C 1.53878 * 110.03305 * 301.52590 * 25 4 3 30 30 H 1.08997 * 109.47192 * 60.00478 * 1 2 3 31 31 H 1.09008 * 109.46902 * 179.97438 * 1 2 3 32 32 H 1.08999 * 109.47174 * 299.99949 * 1 2 3 33 33 H 1.08999 * 109.47174 * 240.00051 * 2 1 3 34 34 H 1.08997 * 109.47192 * 119.99522 * 2 1 3 35 35 H 0.96998 * 119.99830 * 5.31095 * 8 6 4 36 36 H 1.09005 * 109.46473 * 54.89353 * 9 8 6 37 37 H 1.08997 * 109.47465 * 294.89300 * 9 8 6 38 38 H 1.08993 * 109.58143 * 68.10272 * 12 10 9 39 39 H 1.08995 * 109.40908 * 308.02481 * 12 10 9 40 40 H 1.09003 * 109.51137 * 177.49052 * 14 13 12 41 41 H 1.09002 * 109.56029 * 57.36572 * 14 13 12 42 42 H 1.09002 * 109.68132 * 292.57986 * 15 14 13 43 43 H 1.09001 * 109.71201 * 172.04690 * 15 14 13 44 44 H 0.97000 * 120.00192 * 179.97438 * 20 19 17 45 45 H 1.08997 * 110.01610 * 180.13326 * 25 4 3 46 46 H 1.08996 * 110.48649 * 335.77897 * 26 25 4 47 47 H 1.08995 * 110.48577 * 98.42851 * 26 25 4 48 48 H 1.08999 * 110.75304 * 279.63255 * 27 26 25 49 49 H 1.08994 * 110.75549 * 156.25859 * 27 26 25 50 50 H 1.09004 * 110.49108 * 203.37845 * 28 27 26 51 51 H 1.09004 * 110.48723 * 80.73503 * 28 27 26 52 52 H 1.08997 * 110.02949 * 238.56760 * 29 25 4 53 53 H 1.08992 * 110.03065 * 0.02562 * 29 25 4 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 3.4308 1.4602 -0.0006 5 1 3.8631 0.6018 -0.5147 6 6 3.9322 1.4997 1.4200 7 8 3.1437 1.5478 2.3402 8 7 5.2568 1.4815 1.6679 9 6 5.7428 1.4026 3.0477 10 6 7.2670 1.2691 3.0446 11 1 7.5560 0.3678 2.5042 12 6 7.7779 1.1872 4.4833 13 8 9.2060 1.2534 4.4819 14 6 9.7347 2.4766 3.9643 15 6 9.3246 2.6216 2.4943 16 7 7.8664 2.4483 2.3999 17 6 7.0896 3.3602 1.7367 18 1 6.0795 3.5514 2.0677 19 6 7.6005 4.0390 0.6389 20 7 8.7961 3.7393 0.1777 21 14 6.5908 5.3782 -0.1839 22 1 5.7256 4.7743 -1.2290 23 1 5.7429 6.0531 0.8313 24 1 7.5011 6.3715 -0.8081 25 6 3.8402 2.7459 -0.7219 26 6 3.2081 3.9677 -0.0236 27 6 2.8457 4.9245 -1.1866 28 6 2.3613 3.9522 -2.2907 29 6 3.3018 2.7360 -2.1633 30 1 -0.3633 0.5137 -0.8900 31 1 -0.3633 -1.0277 -0.0005 32 1 -0.3633 0.5138 0.8900 33 1 1.8934 -0.5138 -0.8900 34 1 1.8934 -0.5137 0.8900 35 1 5.8884 1.5208 0.9327 36 1 5.3030 0.5345 3.5386 37 1 5.4584 2.3071 3.5854 38 1 7.4574 0.2469 4.9317 39 1 7.3754 2.0208 5.0586 40 1 10.8220 2.4639 4.0394 41 1 9.3400 3.3159 4.5368 42 1 9.8244 1.8591 1.8968 43 1 9.6009 3.6116 2.1315 44 1 9.1529 4.2133 -0.5897 45 1 4.9261 2.8398 -0.7295 46 1 2.3114 3.6737 0.5219 47 1 3.9270 4.4379 0.6472 48 1 3.7235 5.4790 -1.5183 49 1 2.0462 5.6044 -0.8926 50 1 2.4621 4.4110 -3.2743 51 1 1.3278 3.6556 -2.1113 52 1 4.1263 2.8260 -2.8705 53 1 2.7485 1.8155 -2.3488 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 ZINC001724772824.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 06:10:52 Heat of formation + Delta-G solvation = -111.687967 kcal Electronic energy + Delta-G solvation = -33146.301538 eV Core-core repulsion = 29018.496126 eV Total energy + Delta-G solvation = -4127.805412 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.86 seconds Orbital eigenvalues (eV) -40.02246 -38.65241 -37.62983 -36.77240 -35.26569 -33.57127 -32.05039 -31.38474 -30.47106 -29.50251 -28.45280 -27.25295 -26.15466 -24.33971 -23.47994 -22.79640 -21.71287 -20.63154 -20.04552 -19.67183 -19.28983 -17.47573 -16.63564 -16.52539 -15.90554 -15.70786 -15.56048 -15.16605 -14.98085 -14.66062 -14.54647 -14.17729 -13.92618 -13.69261 -13.55096 -13.27340 -13.03016 -12.88019 -12.72312 -12.59850 -12.28260 -11.86821 -11.75926 -11.56286 -11.31556 -11.11470 -10.99688 -10.96833 -10.87895 -10.76680 -10.70093 -10.45592 -10.35644 -10.31002 -10.20763 -10.19273 -10.06796 -10.02290 -9.68495 -9.10266 -8.75695 -8.67366 -8.27964 -6.75049 -5.93904 -3.46239 3.11164 3.24412 3.34051 3.36603 3.51963 3.97815 4.30334 4.51933 4.76453 4.85378 4.97364 5.06386 5.12495 5.14017 5.22230 5.29375 5.36288 5.39566 5.48715 5.58924 5.63525 5.70675 5.74258 5.83692 5.85781 5.92168 5.94334 5.96907 6.00830 6.03721 6.07407 6.10597 6.14032 6.14977 6.18034 6.22281 6.32874 6.33346 6.50870 6.53071 6.57896 6.74265 6.75868 7.08363 7.09703 7.25828 7.51093 7.66651 7.86026 8.21521 8.27656 8.82075 9.02886 9.62106 10.21764 11.11493 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.011666 B = 0.004883 C = 0.003684 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2399.547212 B = 5732.764641 C = 7598.733124 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.146 4.146 2 C 0.055 3.945 3 O -0.349 6.349 4 C 0.084 3.916 5 H 0.079 0.921 6 C 0.487 3.513 7 O -0.547 6.547 8 N -0.696 5.696 9 C 0.136 3.864 10 C 0.126 3.874 11 H 0.041 0.959 12 C 0.056 3.944 13 O -0.393 6.393 14 C 0.034 3.966 15 C 0.142 3.858 16 N -0.592 5.592 17 C -0.255 4.255 18 H 0.074 0.926 19 C 0.011 3.989 20 N -0.900 5.900 21 Si 0.883 3.117 22 H -0.264 1.264 23 H -0.278 1.278 24 H -0.295 1.295 25 C -0.087 4.087 26 C -0.117 4.117 27 C -0.127 4.127 28 C -0.116 4.116 29 C -0.112 4.112 30 H 0.060 0.940 31 H 0.066 0.934 32 H 0.064 0.936 33 H 0.044 0.956 34 H 0.048 0.952 35 H 0.415 0.585 36 H 0.058 0.942 37 H 0.065 0.935 38 H 0.082 0.918 39 H 0.046 0.954 40 H 0.079 0.921 41 H 0.040 0.960 42 H 0.028 0.972 43 H 0.098 0.902 44 H 0.256 0.744 45 H 0.099 0.901 46 H 0.078 0.922 47 H 0.065 0.935 48 H 0.064 0.936 49 H 0.062 0.938 50 H 0.058 0.942 51 H 0.065 0.935 52 H 0.062 0.938 53 H 0.065 0.935 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -8.808 -5.031 -2.650 10.484 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 -0.204 4.204 2 C -0.022 4.022 3 O -0.267 6.267 4 C 0.023 3.977 5 H 0.097 0.903 6 C 0.271 3.729 7 O -0.426 6.426 8 N -0.350 5.350 9 C 0.012 3.988 10 C 0.018 3.982 11 H 0.058 0.942 12 C -0.023 4.023 13 O -0.311 6.311 14 C -0.044 4.044 15 C 0.017 3.983 16 N -0.318 5.318 17 C -0.384 4.384 18 H 0.092 0.908 19 C -0.188 4.188 20 N -0.544 5.544 21 Si 0.713 3.287 22 H -0.190 1.190 23 H -0.203 1.203 24 H -0.221 1.221 25 C -0.106 4.106 26 C -0.155 4.155 27 C -0.165 4.165 28 C -0.154 4.154 29 C -0.149 4.149 30 H 0.079 0.921 31 H 0.085 0.915 32 H 0.083 0.917 33 H 0.062 0.938 34 H 0.067 0.933 35 H 0.254 0.746 36 H 0.076 0.924 37 H 0.083 0.917 38 H 0.100 0.900 39 H 0.064 0.936 40 H 0.097 0.903 41 H 0.058 0.942 42 H 0.046 0.954 43 H 0.116 0.884 44 H 0.066 0.934 45 H 0.117 0.883 46 H 0.097 0.903 47 H 0.083 0.917 48 H 0.082 0.918 49 H 0.081 0.919 50 H 0.076 0.924 51 H 0.084 0.916 52 H 0.081 0.919 53 H 0.083 0.917 Dipole moment (debyes) X Y Z Total from point charges -9.292 -4.934 -2.090 10.727 hybrid contribution 0.075 0.798 -0.852 1.170 sum -9.218 -4.136 -2.943 10.523 Atomic orbital electron populations 1.21684 0.93821 1.01819 1.03045 1.22513 0.95635 0.84282 0.99738 1.87977 1.18582 1.25722 1.94421 1.22007 0.82944 0.99819 0.92954 0.90320 1.21164 0.82934 0.77063 0.91703 1.90638 1.55677 1.50235 1.46037 1.46148 1.06450 1.72471 1.09937 1.21140 0.93371 1.00827 0.83466 1.21340 0.91126 0.92136 0.93551 0.94177 1.22783 0.82001 1.00750 0.96789 1.87799 1.19947 1.39021 1.84379 1.23377 0.97458 0.85620 0.97974 1.21486 0.83845 1.02899 0.90061 1.44072 1.02879 1.21996 1.62834 1.19253 0.97563 1.15543 1.06086 0.90815 1.25184 0.97018 1.00016 0.96599 1.69932 1.16572 1.42483 1.25440 0.86697 0.79607 0.81991 0.80429 1.18999 1.20316 1.22118 1.21996 1.01493 0.92522 0.94575 1.22369 1.01142 0.94525 0.97443 1.22550 1.00508 0.97550 0.95866 1.22265 0.99285 0.95675 0.98149 1.22077 0.98707 0.98727 0.95421 0.92091 0.91473 0.91705 0.93772 0.93322 0.74575 0.92387 0.91706 0.89972 0.93577 0.90296 0.94185 0.95399 0.88373 0.93411 0.88266 0.90288 0.91665 0.91756 0.91921 0.92366 0.91578 0.91912 0.91653 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 15. 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 -1.55 10.28 37.16 0.38 -1.17 16 2 C 0.06 0.70 6.46 37.16 0.24 0.94 16 3 O -0.35 -5.43 7.98 -55.07 -0.44 -5.86 16 4 C 0.08 1.33 2.07 -27.88 -0.06 1.27 16 5 H 0.08 1.08 7.79 -51.93 -0.40 0.68 16 6 C 0.49 8.99 6.47 -10.99 -0.07 8.91 16 7 O -0.55 -11.69 16.52 -14.28 -0.24 -11.93 16 8 N -0.70 -12.86 3.91 -60.29 -0.24 -13.09 16 9 C 0.14 2.51 4.44 -4.04 -0.02 2.49 16 10 C 0.13 2.42 3.21 -67.63 -0.22 2.20 16 11 H 0.04 0.80 8.14 -51.93 -0.42 0.38 16 12 C 0.06 0.98 6.27 37.10 0.23 1.22 16 13 O -0.39 -7.61 10.74 -35.23 -0.38 -7.99 16 14 C 0.03 0.64 6.98 37.31 0.26 0.90 16 15 C 0.14 3.19 5.37 -3.53 -0.02 3.17 16 16 N -0.59 -13.30 3.04 -164.54 -0.50 -13.80 16 17 C -0.26 -6.09 6.94 -15.06 -0.10 -6.20 16 18 H 0.07 1.81 5.83 -52.49 -0.31 1.50 16 19 C 0.01 0.28 5.18 -17.43 -0.09 0.19 16 20 N -0.90 -23.49 10.87 55.49 0.60 -22.89 16 21 Si 0.88 19.73 26.53 -169.99 -4.51 15.22 16 22 H -0.26 -5.46 5.40 56.52 0.30 -5.16 16 23 H -0.28 -6.36 7.11 56.52 0.40 -5.96 16 24 H -0.29 -6.91 7.11 56.52 0.40 -6.51 16 25 C -0.09 -1.41 2.65 -89.50 -0.24 -1.65 16 26 C -0.12 -2.02 5.29 -25.07 -0.13 -2.16 16 27 C -0.13 -1.92 6.91 -24.74 -0.17 -2.10 16 28 C -0.12 -1.54 6.83 -25.07 -0.17 -1.71 16 29 C -0.11 -1.55 6.21 -25.61 -0.16 -1.71 16 30 H 0.06 0.61 8.14 -51.93 -0.42 0.19 16 31 H 0.07 0.56 8.14 -51.92 -0.42 0.14 16 32 H 0.06 0.75 8.14 -51.93 -0.42 0.33 16 33 H 0.04 0.48 8.08 -51.93 -0.42 0.06 16 34 H 0.05 0.66 8.14 -51.93 -0.42 0.24 16 35 H 0.42 8.00 6.82 -40.82 -0.28 7.73 16 36 H 0.06 0.98 8.14 -51.93 -0.42 0.55 16 37 H 0.06 1.31 7.55 -51.93 -0.39 0.91 16 38 H 0.08 1.22 8.14 -51.93 -0.42 0.80 16 39 H 0.05 0.81 8.13 -51.93 -0.42 0.39 16 40 H 0.08 1.34 8.14 -51.93 -0.42 0.91 16 41 H 0.04 0.77 8.14 -51.93 -0.42 0.34 16 42 H 0.03 0.67 8.14 -51.93 -0.42 0.24 16 43 H 0.10 2.43 6.19 -51.93 -0.32 2.11 16 44 H 0.26 6.59 8.31 -40.82 -0.34 6.25 16 45 H 0.10 1.78 6.36 -51.93 -0.33 1.45 16 46 H 0.08 1.43 7.18 -51.93 -0.37 1.05 16 47 H 0.06 1.27 6.51 -51.93 -0.34 0.93 16 48 H 0.06 1.03 6.84 -51.93 -0.36 0.67 16 49 H 0.06 0.86 8.14 -51.93 -0.42 0.43 16 50 H 0.06 0.69 8.14 -51.93 -0.42 0.27 16 51 H 0.07 0.84 8.14 -51.93 -0.42 0.42 16 52 H 0.06 0.85 8.14 -51.93 -0.42 0.43 16 53 H 0.06 0.83 7.37 -51.93 -0.38 0.45 16 LS Contribution 397.72 15.07 5.99 5.99 Total: -1.00 -28.01 397.72 -9.51 -37.52 By element: Atomic # 1 Polarization: 21.71 SS G_CDS: -9.47 Total: 12.23 kcal Atomic # 6 Polarization: 4.94 SS G_CDS: -0.33 Total: 4.61 kcal Atomic # 7 Polarization: -49.65 SS G_CDS: -0.13 Total: -49.79 kcal Atomic # 8 Polarization: -24.73 SS G_CDS: -1.05 Total: -25.78 kcal Atomic # 14 Polarization: 19.73 SS G_CDS: -4.51 Total: 15.22 kcal Total LS contribution 5.99 Total: 5.99 kcal Total: -28.01 -9.51 -37.52 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. ZINC001724772824.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 -74.171 kcal (2) G-P(sol) polarization free energy of solvation -28.006 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -102.178 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.510 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -37.517 kcal (6) G-S(sol) free energy of system = (1) + (5) -111.688 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.86 seconds