Wall clock time and date at job start Sat Apr 11 2020 06:13:54 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 1.53003 * 1 3 3 C 1.52999 * 109.46841 * 2 1 4 4 C 1.52998 * 109.47320 * 240.00050 * 2 1 3 5 5 C 1.52999 * 109.46978 * 120.00140 * 2 1 3 6 6 H 1.08997 * 109.47258 * 175.62822 * 5 2 1 7 7 N 1.46497 * 109.47199 * 55.62385 * 5 2 1 8 8 C 1.34784 * 119.99612 * 85.00097 * 7 5 2 9 9 N 1.34774 * 119.99623 * 179.72012 * 8 7 5 10 10 O 1.21588 * 119.99821 * 0.02562 * 8 7 5 11 11 C 1.50703 * 109.47094 * 295.62749 * 5 2 1 12 12 O 1.21277 * 120.00244 * 91.87026 * 11 5 2 13 13 N 1.34783 * 119.99885 * 271.87426 * 11 5 2 14 14 C 1.46502 * 119.99973 * 174.89243 * 13 11 5 15 15 H 1.09005 * 110.63926 * 323.38652 * 14 13 11 16 16 C 1.54324 * 110.72113 * 86.52980 * 14 13 11 17 17 N 1.47018 * 107.26988 * 96.17208 * 16 14 13 18 18 C 1.36936 * 125.64949 * 178.90692 * 17 16 14 19 19 H 1.07999 * 120.00217 * 180.02562 * 18 17 16 20 20 C 1.38817 * 119.99850 * 0.02562 * 18 17 16 21 21 N 1.31616 * 119.99710 * 359.97438 * 20 18 17 22 22 Si 1.86796 * 119.99984 * 180.02562 * 20 18 17 23 23 H 1.48500 * 109.47272 * 359.97438 * 22 20 18 24 24 H 1.48503 * 109.47174 * 119.99922 * 22 20 18 25 25 H 1.48501 * 109.47059 * 239.99788 * 22 20 18 26 26 C 1.47422 * 108.70615 * 358.93614 * 17 16 14 27 27 C 1.54916 * 104.83183 * 24.13091 * 26 17 16 28 28 C 1.52998 * 111.00609 * 204.91428 * 27 26 17 29 29 C 1.52998 * 111.00114 * 81.05984 * 27 26 17 30 30 H 1.08995 * 109.47318 * 299.99958 * 1 2 3 31 31 H 1.09001 * 109.47061 * 60.00017 * 1 2 3 32 32 H 1.09000 * 109.47083 * 179.97438 * 1 2 3 33 33 H 1.09002 * 109.47137 * 180.47689 * 3 2 1 34 34 H 1.08998 * 109.47359 * 300.48208 * 3 2 1 35 35 H 1.09004 * 109.46973 * 60.48488 * 3 2 1 36 36 H 1.09000 * 109.47224 * 300.00136 * 4 2 1 37 37 H 1.09001 * 109.47108 * 59.99962 * 4 2 1 38 38 H 1.08998 * 109.47452 * 179.97438 * 4 2 1 39 39 H 0.97002 * 120.00157 * 264.99825 * 7 5 2 40 40 H 0.97001 * 119.99929 * 180.27235 * 9 8 7 41 41 H 0.96997 * 120.00457 * 0.28518 * 9 8 7 42 42 H 0.97002 * 119.99846 * 354.88621 * 13 11 5 43 43 H 1.08999 * 109.88062 * 215.58518 * 16 14 13 44 44 H 1.09001 * 109.87853 * 336.75351 * 16 14 13 45 45 H 0.97005 * 119.99963 * 180.02562 * 21 20 18 46 46 H 1.08999 * 110.37005 * 142.96753 * 26 17 16 47 47 H 1.08998 * 110.37247 * 265.29446 * 26 17 16 48 48 H 1.08999 * 109.47075 * 174.71602 * 28 27 26 49 49 H 1.08997 * 109.47255 * 294.71438 * 28 27 26 50 50 H 1.08995 * 109.46780 * 54.71856 * 28 27 26 51 51 H 1.08994 * 109.47501 * 307.80608 * 29 27 26 52 52 H 1.08998 * 109.47116 * 67.80965 * 29 27 26 53 53 H 1.09001 * 109.46869 * 187.80386 * 29 27 26 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 6 2.0400 1.4425 0.0000 4 6 2.0401 -0.7212 -1.2492 5 6 2.0400 -0.7213 1.2492 6 1 3.1271 -0.7896 1.2110 7 7 1.4675 -2.0687 1.3031 8 6 2.0591 -3.0793 0.6357 9 7 1.5356 -4.3201 0.6898 10 8 3.0680 -2.8727 -0.0106 11 6 1.6280 0.0489 2.4773 12 8 0.5854 -0.2154 3.0375 13 7 2.4183 1.0316 2.9531 14 6 1.9672 1.8544 4.0782 15 1 0.8949 2.0390 4.0135 16 6 2.3261 1.1858 5.4220 17 7 3.5908 1.7787 5.8805 18 6 4.2400 1.4714 7.0464 19 1 5.1679 1.9653 7.2941 20 6 3.7052 0.5251 7.9098 21 7 2.5741 -0.0763 7.6081 22 14 4.5903 0.1064 9.5006 23 1 5.8310 0.9159 9.6047 24 1 3.7044 0.4070 10.6539 25 1 4.9395 -1.3369 9.5077 26 6 4.0442 2.7594 4.8775 27 6 2.7558 3.1895 4.1327 28 6 3.0786 3.6937 2.7247 29 6 1.9890 4.2471 4.9292 30 1 -0.3634 0.5138 0.8899 31 1 -0.3633 0.5138 -0.8900 32 1 -0.3633 -1.0277 -0.0005 33 1 3.1299 1.4426 -0.0086 34 1 1.6696 1.9588 -0.8856 35 1 1.6837 1.9538 0.8943 36 1 1.6767 -1.7489 -1.2493 37 1 1.6767 -0.2074 -2.1392 38 1 3.1300 -0.7208 -1.2495 39 1 0.6628 -2.2335 1.8190 40 1 1.9635 -5.0482 0.2127 41 1 0.7308 -4.4849 1.2056 42 1 3.2859 1.1939 2.5506 43 1 1.5404 1.3775 6.1528 44 1 2.4497 0.1121 5.2805 45 1 2.2002 -0.7373 8.2116 46 1 4.5038 3.6180 5.3671 47 1 4.7464 2.2963 4.1843 48 1 2.1508 3.9004 2.1912 49 1 3.6698 4.6069 2.7925 50 1 3.6449 2.9331 2.1874 51 1 1.8322 3.8920 5.9477 52 1 2.5641 5.1727 4.9517 53 1 1.0245 4.4300 4.4557 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 ZINC001725293411.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 06:13:54 Heat of formation + Delta-G solvation = -48.631082 kcal Electronic energy + Delta-G solvation = -32926.758014 eV Core-core repulsion = 28833.979705 eV Total energy + Delta-G solvation = -4092.778309 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.226 amu Computer time = 0.89 seconds Orbital eigenvalues (eV) -40.88234 -39.49555 -38.18058 -36.59847 -34.10313 -33.84947 -33.07724 -32.88678 -30.71015 -28.69111 -27.32816 -27.22795 -27.05412 -26.28348 -25.60788 -23.39812 -21.32453 -20.92550 -19.97043 -19.18234 -18.77009 -18.40527 -17.47354 -16.72577 -16.16252 -16.05365 -15.89148 -15.09700 -14.77766 -14.43165 -14.29067 -14.14981 -13.90450 -13.82814 -13.56991 -13.37715 -13.12333 -12.80048 -12.44256 -12.24607 -12.07050 -11.99262 -11.97704 -11.71652 -11.60358 -11.41389 -11.30483 -11.08656 -10.99222 -10.88527 -10.81455 -10.77496 -10.39406 -10.27248 -10.23160 -10.01541 -9.86826 -9.69863 -9.65171 -9.55345 -8.95452 -8.62827 -8.46126 -6.81862 -5.68731 -3.03237 2.62358 2.96415 3.18967 3.40330 3.45776 3.48363 3.56742 4.42024 4.50522 4.67417 4.73260 4.86058 4.92654 5.09233 5.25715 5.29073 5.32922 5.48984 5.53962 5.60315 5.62720 5.68749 5.78369 5.80587 5.88500 5.90102 5.93635 6.01212 6.05191 6.11653 6.14529 6.19740 6.22865 6.27719 6.36115 6.40410 6.44810 6.56235 6.61204 6.63472 6.67136 6.71894 6.85058 6.93992 7.55306 7.64442 7.80363 7.89260 7.92821 8.26389 8.50413 8.58627 9.22889 9.83640 10.48742 11.41890 Molecular weight = 340.23amu Principal moments of inertia in cm(-1) A = 0.011634 B = 0.003945 C = 0.003228 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2406.063563 B = 7095.994771 C = 8672.535214 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 -0.070 4.070 3 C -0.152 4.152 4 C -0.128 4.128 5 C 0.157 3.843 6 H 0.104 0.896 7 N -0.724 5.724 8 C 0.709 3.291 9 N -0.868 5.868 10 O -0.592 6.592 11 C 0.515 3.485 12 O -0.534 6.534 13 N -0.703 5.703 14 C 0.125 3.875 15 H 0.086 0.914 16 C 0.177 3.823 17 N -0.603 5.603 18 C -0.229 4.229 19 H 0.078 0.922 20 C -0.007 4.007 21 N -0.918 5.918 22 Si 0.909 3.091 23 H -0.280 1.280 24 H -0.291 1.291 25 H -0.292 1.292 26 C 0.143 3.857 27 C -0.089 4.089 28 C -0.132 4.132 29 C -0.126 4.126 30 H 0.062 0.938 31 H 0.053 0.947 32 H 0.055 0.945 33 H 0.059 0.941 34 H 0.061 0.939 35 H 0.066 0.934 36 H 0.058 0.942 37 H 0.046 0.954 38 H 0.062 0.938 39 H 0.406 0.594 40 H 0.414 0.586 41 H 0.397 0.603 42 H 0.397 0.603 43 H 0.053 0.947 44 H 0.048 0.952 45 H 0.251 0.749 46 H 0.041 0.959 47 H 0.016 0.984 48 H 0.054 0.946 49 H 0.055 0.945 50 H 0.052 0.948 51 H 0.069 0.931 52 H 0.052 0.948 53 H 0.047 0.953 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -4.556 0.747 -17.334 17.939 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 -0.198 4.198 2 C -0.072 4.072 3 C -0.210 4.210 4 C -0.185 4.185 5 C 0.047 3.953 6 H 0.122 0.878 7 N -0.381 5.381 8 C 0.407 3.593 9 N -0.436 5.436 10 O -0.470 6.470 11 C 0.299 3.701 12 O -0.411 6.411 13 N -0.354 5.354 14 C 0.021 3.979 15 H 0.104 0.896 16 C 0.052 3.948 17 N -0.329 5.329 18 C -0.357 4.357 19 H 0.096 0.904 20 C -0.203 4.203 21 N -0.565 5.565 22 Si 0.740 3.260 23 H -0.205 1.205 24 H -0.218 1.218 25 H -0.219 1.219 26 C 0.017 3.983 27 C -0.090 4.090 28 C -0.190 4.190 29 C -0.183 4.183 30 H 0.081 0.919 31 H 0.072 0.928 32 H 0.074 0.926 33 H 0.078 0.922 34 H 0.080 0.920 35 H 0.085 0.915 36 H 0.077 0.923 37 H 0.065 0.935 38 H 0.081 0.919 39 H 0.243 0.757 40 H 0.245 0.755 41 H 0.225 0.775 42 H 0.232 0.768 43 H 0.071 0.929 44 H 0.066 0.934 45 H 0.062 0.938 46 H 0.059 0.941 47 H 0.033 0.967 48 H 0.073 0.927 49 H 0.074 0.926 50 H 0.070 0.930 51 H 0.088 0.912 52 H 0.071 0.929 53 H 0.066 0.934 Dipole moment (debyes) X Y Z Total from point charges -4.493 0.773 -17.213 17.807 hybrid contribution 0.297 -0.826 1.083 1.394 sum -4.196 -0.053 -16.130 16.667 Atomic orbital electron populations 1.21856 0.93892 1.02024 1.02018 1.20849 0.96555 0.95538 0.94279 1.22063 1.01343 0.94746 1.02847 1.21862 1.01637 0.99981 0.95027 1.20726 0.99949 0.81666 0.92962 0.87807 1.44753 1.31869 1.07171 1.54286 1.15823 0.82867 0.80691 0.79886 1.42951 1.33305 1.09295 1.58071 1.90967 1.25953 1.83186 1.46886 1.20276 0.84581 0.80585 0.84633 1.90693 1.24682 1.66021 1.59674 1.46061 1.20488 1.34172 1.34657 1.22491 0.98011 0.89739 0.87698 0.89581 1.21496 0.88497 0.96190 0.88660 1.44443 1.23876 1.44629 1.19970 1.19070 1.03784 1.18332 0.94520 0.90447 1.24798 0.97480 0.99150 0.98909 1.69976 1.19689 1.29891 1.36975 0.86082 0.78611 0.77855 0.83430 1.20549 1.21788 1.21865 1.21633 0.92790 0.92632 0.91251 1.22007 0.97555 0.94187 0.95293 1.21726 1.01021 1.00595 0.95668 1.21592 0.98591 0.97081 1.01051 0.91872 0.92779 0.92639 0.92185 0.92012 0.91482 0.92314 0.93472 0.91928 0.75720 0.75450 0.77485 0.76762 0.92936 0.93365 0.93813 0.94101 0.96692 0.92741 0.92584 0.92950 0.91211 0.92868 0.93370 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 -0.14 -1.56 8.02 37.16 0.30 -1.27 16 2 C -0.07 -0.79 0.62 -154.51 -0.10 -0.89 16 3 C -0.15 -1.53 7.87 37.16 0.29 -1.24 16 4 C -0.13 -1.46 7.06 37.16 0.26 -1.20 16 5 C 0.16 2.10 1.94 -69.08 -0.13 1.97 16 6 H 0.10 1.48 7.58 -51.93 -0.39 1.09 16 7 N -0.72 -9.20 4.05 -59.81 -0.24 -9.44 16 8 C 0.71 9.11 7.38 -86.91 -0.64 8.47 16 9 N -0.87 -7.53 8.88 27.64 0.25 -7.28 16 10 O -0.59 -9.44 14.31 5.29 0.08 -9.37 16 11 C 0.51 8.17 5.31 -10.98 -0.06 8.11 16 12 O -0.53 -10.04 15.05 5.56 0.08 -9.96 16 13 N -0.70 -10.97 3.32 -52.03 -0.17 -11.14 16 14 C 0.13 2.26 2.47 -66.09 -0.16 2.10 16 15 H 0.09 1.59 7.68 -51.93 -0.40 1.20 16 16 C 0.18 4.25 4.79 -3.07 -0.01 4.23 16 17 N -0.60 -14.81 3.38 -170.07 -0.57 -15.39 16 18 C -0.23 -6.29 10.28 -15.06 -0.15 -6.44 16 19 H 0.08 2.06 7.83 -52.49 -0.41 1.65 16 20 C -0.01 -0.19 5.49 -17.43 -0.10 -0.29 16 21 N -0.92 -27.22 10.31 55.49 0.57 -26.65 16 22 Si 0.91 22.24 29.55 -169.99 -5.02 17.21 16 23 H -0.28 -6.63 7.11 56.52 0.40 -6.23 16 24 H -0.29 -7.15 7.11 56.52 0.40 -6.75 16 25 H -0.29 -7.23 7.11 56.52 0.40 -6.83 16 26 C 0.14 2.77 6.14 -2.53 -0.02 2.75 16 27 C -0.09 -1.40 0.83 -152.36 -0.13 -1.53 16 28 C -0.13 -1.58 8.20 37.16 0.30 -1.28 16 29 C -0.13 -1.92 8.57 37.16 0.32 -1.60 16 30 H 0.06 0.81 6.83 -51.93 -0.35 0.45 16 31 H 0.05 0.53 8.14 -51.93 -0.42 0.11 16 32 H 0.05 0.61 7.49 -51.93 -0.39 0.22 16 33 H 0.06 0.56 8.14 -51.93 -0.42 0.14 16 34 H 0.06 0.55 8.14 -51.93 -0.42 0.13 16 35 H 0.07 0.73 6.25 -51.93 -0.32 0.40 16 36 H 0.06 0.74 5.66 -51.93 -0.29 0.45 16 37 H 0.05 0.47 8.14 -51.93 -0.42 0.05 16 38 H 0.06 0.78 7.81 -51.93 -0.41 0.38 16 39 H 0.41 4.98 7.84 -40.82 -0.32 4.66 16 40 H 0.41 3.01 8.93 -40.82 -0.36 2.65 16 41 H 0.40 2.49 8.84 -40.82 -0.36 2.13 16 42 H 0.40 5.55 6.77 -40.82 -0.28 5.28 16 43 H 0.05 1.44 7.38 -51.93 -0.38 1.05 16 44 H 0.05 1.35 7.41 -51.93 -0.38 0.96 16 45 H 0.25 7.30 8.31 -40.82 -0.34 6.96 16 46 H 0.04 0.78 8.05 -51.93 -0.42 0.37 16 47 H 0.02 0.29 8.02 -51.93 -0.42 -0.13 16 48 H 0.05 0.60 8.09 -51.93 -0.42 0.18 16 49 H 0.06 0.61 8.14 -51.93 -0.42 0.19 16 50 H 0.05 0.58 6.31 -51.93 -0.33 0.25 16 51 H 0.07 1.28 7.91 -51.93 -0.41 0.87 16 52 H 0.05 0.72 8.14 -51.93 -0.42 0.30 16 53 H 0.05 0.65 8.14 -51.93 -0.42 0.23 16 LS Contribution 403.13 15.07 6.08 6.08 Total: -1.00 -33.50 403.13 -8.13 -41.63 By element: Atomic # 1 Polarization: 21.56 SS G_CDS: -9.15 Total: 12.41 kcal Atomic # 6 Polarization: 11.92 SS G_CDS: -0.02 Total: 11.90 kcal Atomic # 7 Polarization: -69.73 SS G_CDS: -0.17 Total: -69.90 kcal Atomic # 8 Polarization: -19.49 SS G_CDS: 0.16 Total: -19.33 kcal Atomic # 14 Polarization: 22.24 SS G_CDS: -5.02 Total: 17.21 kcal Total LS contribution 6.08 Total: 6.08 kcal Total: -33.50 -8.13 -41.63 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. ZINC001725293411.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 -6.998 kcal (2) G-P(sol) polarization free energy of solvation -33.500 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -40.498 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.133 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -41.633 kcal (6) G-S(sol) free energy of system = (1) + (5) -48.631 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.89 seconds