Wall clock time and date at job start Sat Apr 11 2020 06:11:57 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 1.53007 * 1 3 3 N 1.46501 * 109.46573 * 2 1 4 4 C 1.46501 * 119.99976 * 269.99206 * 3 2 1 5 5 C 1.50698 * 109.47457 * 270.00558 * 4 3 2 6 6 H 1.07998 * 119.99934 * 359.97438 * 5 4 3 7 7 C 1.37870 * 119.99936 * 179.97438 * 5 4 3 8 8 N 1.31509 * 120.00483 * 0.02562 * 7 5 4 9 9 Si 1.86807 * 120.00080 * 179.97438 * 7 5 4 10 10 H 1.48505 * 109.46995 * 60.00093 * 9 7 5 11 11 H 1.48491 * 109.47093 * 180.02562 * 9 7 5 12 12 H 1.48494 * 109.46988 * 300.00340 * 9 7 5 13 13 C 1.34779 * 119.99959 * 90.00209 * 3 2 1 14 14 O 1.21287 * 119.99738 * 179.97438 * 13 3 2 15 15 C 1.50696 * 120.00045 * 359.97438 * 13 3 2 16 16 N 1.46899 * 109.47094 * 179.97438 * 15 13 3 17 17 C 1.46897 * 111.00294 * 180.02562 * 16 15 13 18 18 H 1.09009 * 109.46828 * 35.00203 * 17 16 15 19 19 C 1.50706 * 109.47479 * 275.00802 * 17 16 15 20 20 O 1.20826 * 119.99287 * 359.97438 * 19 17 16 21 21 O 1.34228 * 120.00394 * 179.97438 * 19 17 16 22 22 C 1.45198 * 116.99985 * 179.97438 * 21 19 17 23 23 C 1.52995 * 109.47427 * 155.00414 * 17 16 15 24 24 C 1.53004 * 109.46810 * 299.99938 * 23 17 16 25 25 C 1.53007 * 109.46859 * 179.97438 * 24 23 17 26 26 C 1.53000 * 109.46734 * 60.00572 * 25 24 23 27 27 C 1.53001 * 109.47167 * 299.99678 * 26 25 24 28 28 C 1.53000 * 109.47019 * 180.02562 * 23 17 16 29 29 H 1.09000 * 109.46923 * 60.00663 * 1 2 3 30 30 H 1.09000 * 109.47133 * 179.97438 * 1 2 3 31 31 H 1.08997 * 109.47334 * 300.00304 * 1 2 3 32 32 H 1.08997 * 109.47334 * 239.99696 * 2 1 3 33 33 H 1.08996 * 109.46490 * 119.99508 * 2 1 3 34 34 H 1.09005 * 109.46782 * 30.00965 * 4 3 2 35 35 H 1.08997 * 109.46696 * 150.00285 * 4 3 2 36 36 H 0.96999 * 120.00659 * 179.97438 * 8 7 5 37 37 H 1.08997 * 109.47052 * 60.00398 * 15 13 3 38 38 H 1.09000 * 109.47559 * 300.00301 * 15 13 3 39 39 H 1.00899 * 110.99827 * 56.05089 * 16 15 13 40 40 H 1.09002 * 109.47379 * 299.99940 * 22 21 19 41 41 H 1.09001 * 109.46782 * 180.02562 * 22 21 19 42 42 H 1.09004 * 109.47085 * 60.00143 * 22 21 19 43 43 H 1.08999 * 109.47289 * 60.00096 * 23 17 16 44 44 H 1.08999 * 109.47324 * 300.00137 * 24 23 17 45 45 H 1.09002 * 109.46962 * 60.00337 * 24 23 17 46 46 H 1.09000 * 109.47061 * 300.00595 * 25 24 23 47 47 H 1.08999 * 109.47046 * 180.02562 * 25 24 23 48 48 H 1.09004 * 109.46903 * 179.97438 * 26 25 24 49 49 H 1.08999 * 109.47310 * 59.99630 * 26 25 24 50 50 H 1.08999 * 109.46966 * 300.00162 * 27 26 25 51 51 H 1.08998 * 109.47383 * 180.02562 * 27 26 25 52 52 H 1.09004 * 109.47443 * 299.99552 * 28 23 17 53 53 H 1.09000 * 109.47327 * 60.00301 * 28 23 17 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 1.5301 0.0000 0.0000 3 7 2.0183 1.3813 0.0000 4 6 2.2625 2.0718 -1.2687 5 6 3.6858 1.8351 -1.7037 6 1 4.3429 1.2310 -1.0957 7 6 4.1491 2.3897 -2.8779 8 7 3.3492 3.1257 -3.6181 9 14 5.9136 2.0968 -3.4167 10 1 6.1419 0.6401 -3.5934 11 1 6.1611 2.7967 -4.7028 12 1 6.8407 2.6212 -2.3820 13 6 2.2429 2.0166 1.1672 14 8 2.6475 3.1600 1.1672 15 6 1.9913 1.3064 2.4723 16 7 2.3101 2.2062 3.5888 17 6 2.0769 1.5459 4.8802 18 1 2.3279 0.4883 4.7981 19 6 0.6264 1.6896 5.2632 20 8 -0.1347 2.2817 4.5352 21 8 0.1802 1.1598 6.4129 22 6 -1.2283 1.3374 6.7176 23 6 2.9541 2.1966 5.9515 24 6 4.4267 2.0506 5.5627 25 6 5.3040 2.7019 6.6338 26 6 5.0612 2.0146 7.9790 27 6 3.5886 2.1606 8.3678 28 6 2.7116 1.5085 7.2963 29 1 -0.3633 0.5137 -0.8901 30 1 -0.3633 -1.0277 -0.0005 31 1 -0.3634 0.5139 0.8899 32 1 1.8934 -0.5139 -0.8899 33 1 1.8933 -0.5138 0.8900 34 1 1.5817 1.6877 -2.0284 35 1 2.0955 3.1410 -1.1384 36 1 3.6752 3.5162 -4.4440 37 1 2.6212 0.4188 2.5302 38 1 0.9432 1.0125 2.5299 39 1 1.7856 3.0655 3.5218 40 1 -1.4557 2.4017 6.7779 41 1 -1.4562 0.8629 7.6722 42 1 -1.8304 0.8811 5.9318 43 1 2.7031 3.2542 6.0336 44 1 4.6777 0.9931 5.4806 45 1 4.5998 2.5406 4.6045 46 1 5.0528 3.7594 6.7155 47 1 6.3530 2.5983 6.3566 48 1 5.6865 2.4783 8.7420 49 1 5.3123 0.9571 7.8973 50 1 3.3375 3.2181 8.4495 51 1 3.4157 1.6713 9.3264 52 1 1.6625 1.6121 7.5736 53 1 2.9630 0.4511 7.2140 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 ZINC000543546934.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 06:11:57 Heat of formation + Delta-G solvation = -138.040192 kcal Electronic energy + Delta-G solvation = -31413.780999 eV Core-core repulsion = 27284.832869 eV Total energy + Delta-G solvation = -4128.948131 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.91 seconds Orbital eigenvalues (eV) -41.06843 -39.09804 -38.61267 -37.00896 -35.50361 -35.01414 -32.79499 -31.77079 -30.78758 -30.05754 -28.51153 -27.94610 -26.46228 -24.67393 -22.99232 -22.73971 -22.23209 -22.11928 -20.64231 -19.92325 -18.46642 -17.91002 -17.28464 -16.77006 -16.43043 -16.20645 -15.80472 -15.30631 -14.86355 -14.64605 -14.49034 -14.30717 -14.12985 -13.91515 -13.76545 -13.48571 -13.34053 -12.93619 -12.73884 -12.60662 -12.33507 -12.30789 -12.11392 -12.09082 -11.91028 -11.76817 -11.55442 -11.23662 -11.20676 -11.15692 -11.02700 -10.89108 -10.74016 -10.67178 -10.58447 -10.48465 -10.17960 -10.09171 -10.04699 -9.60591 -8.92185 -8.56392 -8.39175 -7.61267 -5.99994 -4.04614 1.95002 2.47888 3.34824 3.39333 3.41052 3.49252 3.64743 4.20745 4.37222 4.48820 4.60862 4.63525 4.73864 4.85083 4.86368 4.92781 5.06217 5.11700 5.19363 5.21946 5.27697 5.29288 5.34393 5.39890 5.44324 5.45412 5.47968 5.56742 5.61772 5.67732 5.77716 5.81115 5.96486 5.99691 6.03365 6.04173 6.05533 6.10387 6.25093 6.25985 6.37448 6.47870 6.49923 6.64948 7.12570 7.24152 7.49383 7.51154 7.59994 7.96609 8.28247 8.47134 8.94925 9.15522 9.60351 11.08075 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.012021 B = 0.003014 C = 0.002534 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2328.737487 B = 9287.045445 C =11047.390026 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.170 4.170 2 C 0.107 3.893 3 N -0.598 5.598 4 C 0.248 3.752 5 C -0.525 4.525 6 H 0.057 0.943 7 C 0.061 3.939 8 N -0.896 5.896 9 Si 0.898 3.102 10 H -0.277 1.277 11 H -0.287 1.287 12 H -0.276 1.276 13 C 0.508 3.492 14 O -0.527 6.527 15 C 0.034 3.966 16 N -0.635 5.635 17 C 0.101 3.899 18 H 0.116 0.884 19 C 0.430 3.570 20 O -0.505 6.505 21 O -0.351 6.351 22 C 0.028 3.972 23 C -0.067 4.067 24 C -0.105 4.105 25 C -0.120 4.120 26 C -0.121 4.121 27 C -0.116 4.116 28 C -0.126 4.126 29 H 0.061 0.939 30 H 0.058 0.942 31 H 0.049 0.951 32 H 0.083 0.917 33 H 0.062 0.938 34 H 0.031 0.969 35 H 0.042 0.958 36 H 0.263 0.737 37 H 0.097 0.903 38 H 0.058 0.942 39 H 0.364 0.636 40 H 0.061 0.939 41 H 0.099 0.901 42 H 0.061 0.939 43 H 0.075 0.925 44 H 0.060 0.940 45 H 0.085 0.915 46 H 0.060 0.940 47 H 0.062 0.938 48 H 0.056 0.944 49 H 0.060 0.940 50 H 0.059 0.941 51 H 0.059 0.941 52 H 0.082 0.918 53 H 0.064 0.936 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -5.140 -8.155 24.760 26.570 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 -0.228 4.228 2 C -0.017 4.017 3 N -0.331 5.331 4 C 0.129 3.871 5 C -0.564 4.564 6 H 0.075 0.925 7 C -0.141 4.141 8 N -0.535 5.535 9 Si 0.726 3.274 10 H -0.203 1.203 11 H -0.212 1.212 12 H -0.201 1.201 13 C 0.294 3.706 14 O -0.403 6.403 15 C -0.098 4.098 16 N -0.268 5.268 17 C -0.013 4.013 18 H 0.134 0.866 19 C 0.271 3.729 20 O -0.392 6.392 21 O -0.267 6.267 22 C -0.066 4.066 23 C -0.086 4.086 24 C -0.143 4.143 25 C -0.158 4.158 26 C -0.158 4.158 27 C -0.153 4.153 28 C -0.163 4.163 29 H 0.080 0.920 30 H 0.077 0.923 31 H 0.068 0.932 32 H 0.101 0.899 33 H 0.080 0.920 34 H 0.049 0.951 35 H 0.061 0.939 36 H 0.073 0.927 37 H 0.115 0.885 38 H 0.076 0.924 39 H 0.186 0.814 40 H 0.080 0.920 41 H 0.118 0.882 42 H 0.080 0.920 43 H 0.093 0.907 44 H 0.078 0.922 45 H 0.104 0.896 46 H 0.079 0.921 47 H 0.080 0.920 48 H 0.075 0.925 49 H 0.079 0.921 50 H 0.078 0.922 51 H 0.078 0.922 52 H 0.100 0.900 53 H 0.083 0.917 Dipole moment (debyes) X Y Z Total from point charges -4.529 -7.373 24.314 25.808 hybrid contribution -0.403 -0.219 -0.458 0.648 sum -4.932 -7.592 23.856 25.516 Atomic orbital electron populations 1.22230 0.96922 1.01310 1.02350 1.21396 0.93399 0.84353 1.02562 1.48230 1.63999 1.13212 1.07669 1.19244 0.96201 0.93616 0.78031 1.21404 0.96924 1.31896 1.06163 0.92489 1.24931 0.97813 0.94948 0.96413 1.69921 1.35734 1.33470 1.14375 0.86562 0.84897 0.78186 0.77792 1.20293 1.21243 1.20135 1.20009 0.78849 0.87070 0.84694 1.90681 1.44913 1.17846 1.86873 1.22049 1.00411 0.96626 0.90696 1.60573 1.60596 1.07410 0.98261 1.21789 0.85571 1.02008 0.91889 0.86649 1.25553 0.93336 0.75295 0.78721 1.90707 1.57908 1.39179 1.51385 1.86652 1.28332 1.71869 1.39822 1.23274 0.78971 1.02529 1.01792 1.21040 0.95422 0.99976 0.92152 1.21472 0.92044 1.01178 0.99574 1.21550 0.99694 0.99843 0.94691 1.21570 0.96235 1.00798 0.97230 1.21503 0.95033 1.00768 0.98024 1.21865 1.00946 0.99747 0.93769 0.91981 0.92252 0.93193 0.89879 0.91961 0.95108 0.93948 0.92709 0.88481 0.92408 0.81363 0.91986 0.88239 0.92028 0.90697 0.92169 0.89616 0.92090 0.91966 0.92487 0.92089 0.92225 0.92210 0.90009 0.91686 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 13. 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 -0.17 -2.38 10.24 37.16 0.38 -2.00 16 2 C 0.11 1.74 5.93 -4.04 -0.02 1.72 16 3 N -0.60 -12.81 2.46 -175.06 -0.43 -13.24 16 4 C 0.25 6.59 5.16 -5.19 -0.03 6.56 16 5 C -0.52 -15.06 9.39 -34.44 -0.32 -15.38 16 6 H 0.06 1.63 7.81 -52.49 -0.41 1.22 16 7 C 0.06 1.76 5.46 -17.82 -0.10 1.66 16 8 N -0.90 -26.99 13.29 55.43 0.74 -26.25 16 9 Si 0.90 22.11 29.54 -169.99 -5.02 17.09 16 10 H -0.28 -6.60 7.11 56.52 0.40 -6.20 16 11 H -0.29 -6.95 7.11 56.52 0.40 -6.55 16 12 H -0.28 -6.83 7.11 56.52 0.40 -6.43 16 13 C 0.51 10.77 7.71 -10.99 -0.08 10.68 16 14 O -0.53 -13.52 15.78 5.55 0.09 -13.43 16 15 C 0.03 0.53 4.41 -4.98 -0.02 0.51 16 16 N -0.64 -9.23 4.96 -109.22 -0.54 -9.77 16 17 C 0.10 1.11 2.11 -68.87 -0.15 0.96 16 18 H 0.12 1.09 7.80 -51.92 -0.40 0.68 16 19 C 0.43 5.09 7.02 36.01 0.25 5.35 16 20 O -0.50 -7.61 15.06 -18.75 -0.28 -7.90 16 21 O -0.35 -3.38 7.48 -39.25 -0.29 -3.67 16 22 C 0.03 0.21 10.56 101.05 1.07 1.28 16 23 C -0.07 -0.65 1.95 -90.62 -0.18 -0.83 16 24 C -0.11 -1.07 5.05 -26.73 -0.13 -1.21 16 25 C -0.12 -1.09 5.92 -26.73 -0.16 -1.25 16 26 C -0.12 -0.93 5.92 -26.73 -0.16 -1.09 16 27 C -0.12 -0.87 5.93 -26.70 -0.16 -1.02 16 28 C -0.13 -1.02 4.69 -26.71 -0.13 -1.14 16 29 H 0.06 0.96 8.14 -51.93 -0.42 0.54 16 30 H 0.06 0.66 8.14 -51.93 -0.42 0.24 16 31 H 0.05 0.70 7.22 -51.93 -0.37 0.33 16 32 H 0.08 1.39 8.07 -51.93 -0.42 0.98 16 33 H 0.06 0.83 6.44 -51.93 -0.33 0.50 16 34 H 0.03 0.83 8.07 -51.93 -0.42 0.41 16 35 H 0.04 1.28 7.42 -51.93 -0.39 0.89 16 36 H 0.26 7.50 8.31 -40.82 -0.34 7.16 16 37 H 0.10 1.29 7.31 -51.93 -0.38 0.91 16 38 H 0.06 0.84 6.67 -51.93 -0.35 0.50 16 39 H 0.36 6.00 7.45 -39.29 -0.29 5.71 16 40 H 0.06 0.48 8.13 -51.93 -0.42 0.06 16 41 H 0.10 0.46 8.14 -51.93 -0.42 0.03 16 42 H 0.06 0.48 8.13 -51.93 -0.42 0.06 16 43 H 0.07 0.81 8.14 -51.93 -0.42 0.38 16 44 H 0.06 0.58 8.14 -51.93 -0.42 0.16 16 45 H 0.09 1.10 7.60 -51.93 -0.39 0.70 16 46 H 0.06 0.57 8.14 -51.93 -0.42 0.15 16 47 H 0.06 0.56 8.14 -51.93 -0.42 0.13 16 48 H 0.06 0.40 8.14 -51.93 -0.42 -0.02 16 49 H 0.06 0.46 8.14 -51.93 -0.42 0.03 16 50 H 0.06 0.46 8.14 -51.93 -0.42 0.04 16 51 H 0.06 0.39 8.14 -51.93 -0.42 -0.03 16 52 H 0.08 0.68 5.33 -51.93 -0.28 0.41 16 53 H 0.06 0.50 8.14 -51.93 -0.42 0.08 16 LS Contribution 416.80 15.07 6.28 6.28 Total: -1.00 -34.14 416.80 -8.89 -43.03 By element: Atomic # 1 Polarization: 12.56 SS G_CDS: -9.49 Total: 3.07 kcal Atomic # 6 Polarization: 4.73 SS G_CDS: 0.06 Total: 4.80 kcal Atomic # 7 Polarization: -49.03 SS G_CDS: -0.24 Total: -49.27 kcal Atomic # 8 Polarization: -24.51 SS G_CDS: -0.49 Total: -25.00 kcal Atomic # 14 Polarization: 22.11 SS G_CDS: -5.02 Total: 17.09 kcal Total LS contribution 6.28 Total: 6.28 kcal Total: -34.14 -8.89 -43.03 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. ZINC000543546934.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 -95.008 kcal (2) G-P(sol) polarization free energy of solvation -34.142 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -129.150 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.890 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -43.032 kcal (6) G-S(sol) free energy of system = (1) + (5) -138.040 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.92 seconds