Wall clock time and date at job start Sat Apr 11 2020 06:10:47 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 1.50707 * 1 3 3 C 1.50704 * 119.99504 * 2 1 4 4 C 1.30995 * 119.99927 * 179.97438 * 2 1 3 5 5 C 1.50703 * 120.00128 * 356.01354 * 4 2 1 6 6 N 1.46897 * 109.47036 * 126.82830 * 5 4 2 7 7 C 1.46898 * 110.99986 * 179.97438 * 6 5 4 8 8 C 1.53005 * 109.47223 * 180.02562 * 7 6 5 9 9 H 1.09002 * 109.58262 * 306.49593 * 8 7 6 10 10 C 1.53192 * 109.70418 * 186.13930 * 8 7 6 11 11 C 1.53036 * 109.31257 * 185.51044 * 10 8 7 12 12 H 1.09000 * 109.45946 * 301.33932 * 11 10 8 13 13 C 1.52999 * 109.45914 * 181.38610 * 11 10 8 14 14 C 1.53033 * 109.54087 * 61.36546 * 11 10 8 15 15 C 1.53198 * 109.31081 * 298.63368 * 14 11 10 16 16 N 1.46925 * 109.58542 * 66.77708 * 8 7 6 17 17 C 1.34776 * 120.63019 * 353.51974 * 16 8 7 18 18 O 1.21280 * 120.00486 * 5.57258 * 17 16 8 19 19 C 1.50700 * 119.99966 * 185.57613 * 17 16 8 20 20 S 1.80997 * 109.47299 * 179.97438 * 19 17 16 21 21 C 1.76207 * 99.99859 * 180.02562 * 20 19 17 22 22 H 1.07998 * 120.00149 * 359.97438 * 21 20 19 23 23 C 1.38802 * 119.99416 * 180.02562 * 21 20 19 24 24 N 1.31624 * 120.00567 * 359.97438 * 23 21 20 25 25 Si 1.86798 * 119.99526 * 179.97438 * 23 21 20 26 26 H 1.48498 * 109.47373 * 59.99596 * 25 23 21 27 27 H 1.48504 * 109.47194 * 179.97438 * 25 23 21 28 28 H 1.48501 * 109.47262 * 299.99469 * 25 23 21 29 29 H 1.09001 * 109.47034 * 185.83086 * 1 2 3 30 30 H 1.08998 * 109.46983 * 305.83314 * 1 2 3 31 31 H 1.09002 * 109.46999 * 65.82547 * 1 2 3 32 32 H 1.09000 * 109.46953 * 269.99199 * 3 2 1 33 33 H 1.08994 * 109.47393 * 30.00299 * 3 2 1 34 34 H 1.09004 * 109.46359 * 150.00011 * 3 2 1 35 35 H 1.08000 * 119.99682 * 176.00834 * 4 2 1 36 36 H 1.09001 * 109.46784 * 6.83184 * 5 4 2 37 37 H 1.08994 * 109.47032 * 246.83224 * 5 4 2 38 38 H 1.00900 * 111.00581 * 303.95809 * 6 5 4 39 39 H 1.09005 * 109.46873 * 60.00453 * 7 6 5 40 40 H 1.08997 * 109.47606 * 300.00660 * 7 6 5 41 41 H 1.09006 * 109.49572 * 305.46019 * 10 8 7 42 42 H 1.08999 * 109.49809 * 65.55446 * 10 8 7 43 43 H 1.09004 * 109.47400 * 299.92811 * 13 11 10 44 44 H 1.09002 * 109.47569 * 59.93063 * 13 11 10 45 45 H 1.09001 * 109.47310 * 179.97438 * 13 11 10 46 46 H 1.08998 * 109.50004 * 178.68431 * 14 11 10 47 47 H 1.09002 * 109.52670 * 58.60066 * 14 11 10 48 48 H 1.08994 * 109.58876 * 294.85131 * 15 14 11 49 49 H 1.09004 * 109.70073 * 174.49106 * 15 14 11 50 50 H 1.08999 * 109.47380 * 300.00480 * 19 17 16 51 51 H 1.09008 * 109.46802 * 59.99585 * 19 17 16 52 52 H 0.96996 * 120.00343 * 180.02562 * 24 23 21 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 1.5071 0.0000 0.0000 3 6 2.2605 1.3052 0.0000 4 6 2.1620 -1.1345 0.0005 5 6 1.4113 -2.4380 0.0918 6 7 1.8187 -3.3161 -1.0131 7 6 1.1060 -4.5994 -0.9559 8 6 1.5562 -5.4851 -2.1194 9 1 1.4401 -4.9427 -3.0577 10 6 0.7088 -6.7608 -2.1554 11 6 1.2542 -7.7005 -3.2331 12 1 1.2317 -7.1967 -4.1994 13 6 0.3892 -8.9610 -3.2955 14 6 2.6953 -8.0874 -2.8932 15 6 3.5653 -6.8268 -2.8656 16 7 2.9655 -5.8585 -1.9374 17 6 3.6944 -5.3228 -0.9383 18 8 3.1637 -4.6033 -0.1188 19 6 5.1689 -5.6178 -0.8394 20 16 5.8610 -4.7592 0.5958 21 6 7.5445 -5.2648 0.4722 22 1 7.8547 -5.9178 -0.3301 23 6 8.4716 -4.8244 1.4067 24 7 8.0935 -4.0289 2.3847 25 14 10.2561 -5.3609 1.2761 26 1 10.8148 -4.9099 -0.0238 27 1 11.0369 -4.7576 2.3859 28 1 10.3356 -6.8413 1.3620 29 1 -0.3633 -1.0224 0.1044 30 1 -0.3633 0.6016 0.8331 31 1 -0.3633 0.4209 -0.9376 32 1 2.4422 1.6198 -1.0277 33 1 1.6714 2.0648 0.5138 34 1 3.2129 1.1748 0.5139 35 1 3.2401 -1.1356 -0.0646 36 1 0.3403 -2.2457 0.0271 37 1 1.6369 -2.9213 1.0423 38 1 1.6795 -2.8642 -1.9044 39 1 0.0328 -4.4224 -1.0276 40 1 1.3298 -5.0976 -0.0126 41 1 0.7540 -7.2551 -1.1849 42 1 -0.3253 -6.5043 -2.3857 43 1 0.4119 -9.4655 -2.3296 44 1 -0.6373 -8.6857 -3.5376 45 1 0.7772 -9.6303 -4.0634 46 1 3.0752 -8.7751 -3.6487 47 1 2.7223 -8.5695 -1.9160 48 1 3.6130 -6.3938 -3.8647 49 1 4.5704 -7.0812 -2.5292 50 1 5.3180 -6.6917 -0.7276 51 1 5.6697 -5.2738 -1.7445 52 1 8.7414 -3.7209 3.0375 RHF calculation, no. of doubly occupied orbitals= 63 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). S: (AM1): M.J.S. DEWAR, Y.-C. YUAN, INORGANIC CHEM., 29, 589 (1990) 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 ZINC001707152357.mol2 52 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 06:10:47 Heat of formation + Delta-G solvation = 6.888728 kcal Electronic energy + Delta-G solvation = -28498.353433 eV Core-core repulsion = 24818.442763 eV Total energy + Delta-G solvation = -3679.910670 eV No. of doubly occupied orbitals = 63 Molecular weight (most abundant/longest-lived isotopes) = 340.193 amu Computer time = 0.75 seconds Orbital eigenvalues (eV) -40.21099 -37.37227 -37.10241 -34.88340 -33.65402 -32.35241 -31.80490 -29.20162 -28.39518 -27.76729 -27.60364 -25.40839 -24.94261 -23.30733 -22.55301 -21.80535 -20.29154 -18.97019 -17.62089 -17.40064 -16.42520 -15.87198 -15.53341 -15.33442 -14.80597 -14.75621 -14.72828 -14.29260 -14.05851 -13.85232 -13.66044 -13.51253 -13.33351 -13.23413 -12.95600 -12.52144 -12.34731 -12.32691 -12.09521 -12.01606 -11.96122 -11.81698 -11.68308 -11.48943 -11.20351 -11.12621 -10.99701 -10.95077 -10.89653 -10.70517 -10.60140 -10.52181 -10.32929 -9.70775 -8.98624 -8.55764 -8.39501 -8.24498 -8.08849 -7.49139 -6.37048 -6.14183 -3.81927 2.38679 3.12976 3.27306 3.31181 3.34511 3.48722 3.77068 4.28988 4.38688 4.60091 4.63934 4.78699 4.98744 5.04396 5.09460 5.11871 5.20648 5.24410 5.29259 5.35223 5.38360 5.46896 5.48358 5.55828 5.57045 5.62615 5.63765 5.70628 5.73550 5.74833 5.76494 5.81587 5.89572 5.92352 5.97873 5.99083 6.02532 6.07743 6.09319 6.20188 6.23530 6.29964 6.32548 6.38836 6.93147 6.97981 7.07192 7.46896 7.66287 7.84337 7.94128 8.42343 9.05106 9.31265 10.92995 Molecular weight = 340.19amu Principal moments of inertia in cm(-1) A = 0.006522 B = 0.004347 C = 0.002705 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 4292.208021 B = 6439.132575 C =10348.885574 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.125 4.125 2 C -0.157 4.157 3 C -0.112 4.112 4 C -0.133 4.133 5 C 0.093 3.907 6 N -0.641 5.641 7 C 0.076 3.924 8 C 0.155 3.845 9 H 0.061 0.939 10 C -0.124 4.124 11 C -0.090 4.090 12 H 0.069 0.931 13 C -0.146 4.146 14 C -0.130 4.130 15 C 0.111 3.889 16 N -0.617 5.617 17 C 0.521 3.479 18 O -0.454 6.454 19 C -0.147 4.147 20 S -0.057 6.057 21 C -0.535 4.535 22 H 0.069 0.931 23 C 0.074 3.926 24 N -0.869 5.869 25 Si 0.914 3.086 26 H -0.275 1.275 27 H -0.283 1.283 28 H -0.275 1.275 29 H 0.071 0.929 30 H 0.058 0.942 31 H 0.058 0.942 32 H 0.060 0.940 33 H 0.056 0.944 34 H 0.064 0.936 35 H 0.119 0.881 36 H 0.029 0.971 37 H 0.084 0.916 38 H 0.313 0.687 39 H 0.011 0.989 40 H 0.094 0.906 41 H 0.069 0.931 42 H 0.068 0.932 43 H 0.054 0.946 44 H 0.053 0.947 45 H 0.054 0.946 46 H 0.071 0.929 47 H 0.068 0.932 48 H 0.060 0.940 49 H 0.087 0.913 50 H 0.079 0.921 51 H 0.080 0.920 52 H 0.267 0.733 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -17.714 -2.192 -11.936 21.473 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 -0.182 4.182 2 C -0.158 4.158 3 C -0.169 4.169 4 C -0.151 4.151 5 C -0.034 4.034 6 N -0.272 5.272 7 C -0.053 4.053 8 C 0.051 3.949 9 H 0.079 0.921 10 C -0.163 4.163 11 C -0.108 4.108 12 H 0.087 0.913 13 C -0.203 4.203 14 C -0.169 4.169 15 C -0.013 4.013 16 N -0.356 5.356 17 C 0.307 3.693 18 O -0.322 6.322 19 C -0.298 4.298 20 S 0.170 5.830 21 C -0.683 4.683 22 H 0.087 0.913 23 C -0.135 4.135 24 N -0.504 5.504 25 Si 0.741 3.259 26 H -0.200 1.200 27 H -0.209 1.209 28 H -0.200 1.200 29 H 0.089 0.911 30 H 0.077 0.923 31 H 0.077 0.923 32 H 0.079 0.921 33 H 0.075 0.925 34 H 0.083 0.917 35 H 0.136 0.864 36 H 0.046 0.954 37 H 0.102 0.898 38 H 0.131 0.869 39 H 0.029 0.971 40 H 0.112 0.888 41 H 0.087 0.913 42 H 0.087 0.913 43 H 0.073 0.927 44 H 0.072 0.928 45 H 0.073 0.927 46 H 0.089 0.911 47 H 0.086 0.914 48 H 0.078 0.922 49 H 0.105 0.895 50 H 0.097 0.903 51 H 0.098 0.902 52 H 0.077 0.923 Dipole moment (debyes) X Y Z Total from point charges -17.880 -1.235 -10.164 20.604 hybrid contribution 1.078 -1.002 -1.521 2.116 sum -16.802 -2.237 -11.685 20.588 Atomic orbital electron populations 1.21014 0.93156 1.02692 1.01312 1.21511 0.95312 0.95226 1.03707 1.20741 0.99794 0.94801 1.01572 1.22756 1.00650 0.92790 0.98946 1.21076 0.94796 0.91028 0.96540 1.60862 1.59179 1.03005 1.04121 1.22057 0.92386 0.91197 0.99680 1.21076 0.81432 0.94190 0.98191 0.92113 1.21998 0.98705 0.95823 0.99758 1.21077 0.94958 0.96025 0.98755 0.91270 1.21823 0.99360 0.97328 1.01815 1.22000 0.94901 0.97596 1.02386 1.21609 0.97420 0.88707 0.93517 1.47903 1.10345 1.45537 1.31771 1.20004 0.87857 0.79910 0.81513 1.90764 1.70425 1.32977 1.38073 1.23562 0.95366 1.04459 1.06406 1.85272 1.05700 1.63195 1.28842 1.22860 0.94284 1.35231 1.15912 0.91286 1.24946 0.99150 0.94780 0.94583 1.70006 1.34983 1.31750 1.13676 0.86293 0.82888 0.78874 0.77849 1.20012 1.20884 1.20023 0.91083 0.92299 0.92336 0.92118 0.92484 0.91682 0.86351 0.95355 0.89820 0.86928 0.97087 0.88780 0.91275 0.91336 0.92663 0.92836 0.92733 0.91083 0.91366 0.92213 0.89499 0.90300 0.90185 0.92296 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 -0.13 -1.34 9.93 36.01 0.36 -0.98 16 2 C -0.16 -2.02 6.05 -101.06 -0.61 -2.63 16 3 C -0.11 -1.31 10.03 36.01 0.36 -0.95 16 4 C -0.13 -2.01 9.36 -36.02 -0.34 -2.35 16 5 C 0.09 1.38 5.50 -4.98 -0.03 1.36 16 6 N -0.64 -9.60 3.66 -115.06 -0.42 -10.02 16 7 C 0.08 1.02 4.30 -3.82 -0.02 1.00 16 8 C 0.16 1.85 3.07 -67.60 -0.21 1.65 16 9 H 0.06 0.69 8.14 -51.93 -0.42 0.27 16 10 C -0.12 -1.20 4.66 -26.61 -0.12 -1.32 16 11 C -0.09 -0.77 2.68 -90.58 -0.24 -1.01 16 12 H 0.07 0.57 8.14 -51.93 -0.42 0.15 16 13 C -0.15 -1.08 9.19 37.16 0.34 -0.74 16 14 C -0.13 -1.24 5.36 -26.61 -0.14 -1.38 16 15 C 0.11 1.28 6.33 -3.71 -0.02 1.25 16 16 N -0.62 -8.67 2.97 -165.22 -0.49 -9.16 16 17 C 0.52 9.62 7.38 -10.99 -0.08 9.54 16 18 O -0.45 -9.30 9.20 5.56 0.05 -9.25 16 19 C -0.15 -3.05 4.57 36.01 0.16 -2.88 16 20 S -0.06 -1.54 20.57 -107.50 -2.21 -3.76 16 21 C -0.53 -15.42 9.50 30.94 0.29 -15.12 16 22 H 0.07 1.90 7.80 -52.49 -0.41 1.49 16 23 C 0.07 2.15 5.49 -17.43 -0.10 2.05 16 24 N -0.87 -26.40 13.22 55.49 0.73 -25.66 16 25 Si 0.91 21.69 29.55 -169.99 -5.02 16.67 16 26 H -0.27 -6.37 7.11 56.52 0.40 -5.97 16 27 H -0.28 -6.60 7.11 56.52 0.40 -6.20 16 28 H -0.27 -6.36 7.11 56.52 0.40 -5.96 16 29 H 0.07 0.76 4.96 -51.93 -0.26 0.50 16 30 H 0.06 0.58 8.14 -51.93 -0.42 0.15 16 31 H 0.06 0.56 8.14 -51.93 -0.42 0.14 16 32 H 0.06 0.66 8.14 -51.93 -0.42 0.23 16 33 H 0.06 0.58 8.12 -51.93 -0.42 0.16 16 34 H 0.06 0.81 8.06 -51.93 -0.42 0.39 16 35 H 0.12 2.09 8.05 -52.49 -0.42 1.67 16 36 H 0.03 0.37 4.97 -51.93 -0.26 0.11 16 37 H 0.08 1.45 7.88 -51.93 -0.41 1.04 16 38 H 0.31 4.34 8.72 -39.29 -0.34 4.00 16 39 H 0.01 0.13 8.14 -51.93 -0.42 -0.29 16 40 H 0.09 1.53 6.52 -51.93 -0.34 1.19 16 41 H 0.07 0.75 8.14 -51.93 -0.42 0.33 16 42 H 0.07 0.57 8.14 -51.93 -0.42 0.15 16 43 H 0.05 0.43 8.14 -51.93 -0.42 0.01 16 44 H 0.05 0.36 8.14 -51.93 -0.42 -0.06 16 45 H 0.05 0.37 8.14 -51.93 -0.42 -0.05 16 46 H 0.07 0.57 8.14 -51.93 -0.42 0.14 16 47 H 0.07 0.73 8.14 -51.93 -0.42 0.30 16 48 H 0.06 0.62 8.14 -51.93 -0.42 0.20 16 49 H 0.09 1.06 5.96 -51.93 -0.31 0.75 16 50 H 0.08 1.55 7.46 -51.92 -0.39 1.16 16 51 H 0.08 1.61 8.12 -51.91 -0.42 1.19 16 52 H 0.27 7.59 8.31 -40.82 -0.34 7.25 16 LS Contribution 412.82 15.07 6.22 6.22 Total: -1.00 -32.05 412.82 -10.98 -43.04 By element: Atomic # 1 Polarization: 13.89 SS G_CDS: -9.45 Total: 4.44 kcal Atomic # 6 Polarization: -12.12 SS G_CDS: -0.39 Total: -12.51 kcal Atomic # 7 Polarization: -44.67 SS G_CDS: -0.18 Total: -44.85 kcal Atomic # 8 Polarization: -9.30 SS G_CDS: 0.05 Total: -9.25 kcal Atomic # 14 Polarization: 21.69 SS G_CDS: -5.02 Total: 16.67 kcal Atomic # 16 Polarization: -1.54 SS G_CDS: -2.21 Total: -3.76 kcal Total LS contribution 6.22 Total: 6.22 kcal Total: -32.05 -10.98 -43.04 kcal The number of atoms in the molecule is 52 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. ZINC001707152357.mol2 52 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 49.925 kcal (2) G-P(sol) polarization free energy of solvation -32.053 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 17.872 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -10.983 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -43.036 kcal (6) G-S(sol) free energy of system = (1) + (5) 6.889 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.76 seconds