Wall clock time and date at job start Sat Apr 11 2020 06:09:20 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 1.50697 * 1 3 3 C 1.50694 * 120.00479 * 2 1 4 4 C 1.31006 * 119.99839 * 179.97438 * 2 1 3 5 5 C 1.50704 * 119.99737 * 173.52562 * 4 2 1 6 6 N 1.46897 * 109.47227 * 235.98052 * 5 4 2 7 7 C 1.46900 * 111.00287 * 179.97438 * 6 5 4 8 8 C 1.52996 * 109.47422 * 180.02562 * 7 6 5 9 9 C 1.52993 * 109.47178 * 180.02562 * 8 7 6 10 10 H 1.08997 * 109.50033 * 54.93572 * 9 8 7 11 11 C 1.53044 * 109.49845 * 175.00272 * 9 8 7 12 12 C 1.53041 * 109.53785 * 181.31683 * 11 9 8 13 13 C 1.53195 * 109.31239 * 298.63163 * 12 11 9 14 14 N 1.46924 * 108.77375 * 54.63510 * 13 12 11 15 15 C 1.34782 * 120.63150 * 126.41414 * 14 13 12 16 16 O 1.21278 * 120.00197 * 179.97438 * 15 14 13 17 17 C 1.50702 * 119.99743 * 359.97438 * 15 14 13 18 18 S 1.80999 * 109.47281 * 179.97438 * 17 15 14 19 19 C 1.76200 * 100.00275 * 180.02562 * 18 17 15 20 20 H 1.08006 * 119.99768 * 0.02562 * 19 18 17 21 21 C 1.38793 * 120.00185 * 180.02562 * 19 18 17 22 22 N 1.31630 * 119.99776 * 0.02562 * 21 19 18 23 23 Si 1.86795 * 120.00186 * 180.02562 * 21 19 18 24 24 H 1.48507 * 109.47218 * 359.97438 * 23 21 19 25 25 H 1.48497 * 109.47376 * 119.99740 * 23 21 19 26 26 H 1.48500 * 109.47428 * 239.99997 * 23 21 19 27 27 C 1.46929 * 118.74123 * 306.39290 * 14 13 12 28 28 H 1.09001 * 109.47497 * 180.02562 * 1 2 3 29 29 H 1.08995 * 109.47302 * 299.99996 * 1 2 3 30 30 H 1.08996 * 109.47043 * 60.00058 * 1 2 3 31 31 H 1.08998 * 109.47167 * 265.02374 * 3 2 1 32 32 H 1.09005 * 109.47132 * 25.02176 * 3 2 1 33 33 H 1.08996 * 109.47806 * 145.02292 * 3 2 1 34 34 H 1.08000 * 120.00389 * 353.80415 * 4 2 1 35 35 H 1.08997 * 109.46960 * 355.98869 * 5 4 2 36 36 H 1.09008 * 109.46765 * 115.98419 * 5 4 2 37 37 H 1.00906 * 110.99721 * 56.04817 * 6 5 4 38 38 H 1.08994 * 109.47087 * 300.00923 * 7 6 5 39 39 H 1.09002 * 109.46814 * 60.00536 * 7 6 5 40 40 H 1.09003 * 109.46957 * 300.00303 * 8 7 6 41 41 H 1.09002 * 109.46906 * 60.00325 * 8 7 6 42 42 H 1.09002 * 109.45818 * 301.33541 * 11 9 8 43 43 H 1.09000 * 109.46188 * 61.30885 * 11 9 8 44 44 H 1.08996 * 109.50057 * 58.58117 * 12 11 9 45 45 H 1.09001 * 109.49453 * 178.64843 * 12 11 9 46 46 H 1.08996 * 109.58616 * 174.42226 * 13 12 11 47 47 H 1.09001 * 109.58785 * 294.70976 * 13 12 11 48 48 H 1.08994 * 109.47146 * 300.00414 * 17 15 14 49 49 H 1.09007 * 109.46792 * 59.99789 * 17 15 14 50 50 H 0.97006 * 119.99845 * 179.97438 * 22 21 19 51 51 H 1.08994 * 109.58541 * 293.82012 * 27 14 13 52 52 H 1.09002 * 109.58330 * 173.39595 * 27 14 13 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 1.5070 0.0000 0.0000 3 6 2.2606 1.3050 0.0000 4 6 2.1620 -1.1346 0.0005 5 6 3.6618 -1.1388 -0.1467 6 7 4.0392 -1.9789 -1.2910 7 6 5.4975 -2.0063 -1.4658 8 6 5.8510 -2.8887 -2.6647 9 6 7.3698 -2.9177 -2.8463 10 1 7.8414 -3.2368 -1.9169 11 6 7.7319 -3.8969 -3.9654 12 6 9.2529 -3.9512 -4.1257 13 6 9.7715 -2.5625 -4.5120 14 7 9.3042 -1.5892 -3.5156 15 6 10.1770 -0.7773 -2.8866 16 8 9.7787 0.0222 -2.0663 17 6 11.6481 -0.8633 -3.2025 18 16 12.5514 0.3458 -2.2035 19 6 14.1944 0.0360 -2.7597 20 1 14.3776 -0.7221 -3.5068 21 6 15.2530 0.7662 -2.2377 22 7 15.0297 1.6899 -1.3269 23 14 16.9947 0.4383 -2.8279 24 1 16.9769 -0.6415 -3.8472 25 1 17.5557 1.6759 -3.4270 26 1 17.8363 0.0193 -1.6784 27 6 7.8671 -1.5172 -3.2181 28 1 -0.3634 -1.0276 0.0005 29 1 -0.3633 0.5138 0.8899 30 1 -0.3633 0.5138 -0.8900 31 1 2.5194 1.5751 -1.0238 32 1 1.6358 2.0853 0.4347 33 1 3.1714 1.1987 0.5891 34 1 1.6267 -2.0671 0.1019 35 1 4.0135 -0.1204 -0.3118 36 1 4.1148 -1.5368 0.7614 37 1 3.5800 -1.6688 -2.1343 38 1 5.8615 -0.9939 -1.6403 39 1 5.9636 -2.4101 -0.5671 40 1 5.4868 -3.9012 -2.4905 41 1 5.3849 -2.4845 -3.5633 42 1 7.3575 -4.8894 -3.7146 43 1 7.2801 -3.5638 -4.8997 44 1 9.7072 -4.2603 -3.1844 45 1 9.5110 -4.6667 -4.9065 46 1 10.8613 -2.5716 -4.5308 47 1 9.3913 -2.2914 -5.4970 48 1 12.0104 -1.8659 -2.9758 49 1 11.8055 -0.6506 -4.2600 50 1 15.7697 2.2000 -0.9618 51 1 7.3296 -1.1599 -4.0964 52 1 7.7004 -0.8366 -2.3832 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 ZINC001732266147.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 06:09:20 Heat of formation + Delta-G solvation = -44.328913 kcal Electronic energy + Delta-G solvation = -26744.923286 eV Core-core repulsion = 23062.791652 eV Total energy + Delta-G solvation = -3682.131634 eV No. of doubly occupied orbitals = 63 Molecular weight (most abundant/longest-lived isotopes) = 340.193 amu Computer time = 0.76 seconds Orbital eigenvalues (eV) -40.03572 -38.10140 -37.40912 -35.72282 -33.65688 -32.43360 -32.02028 -30.09093 -29.01111 -28.14642 -26.96990 -25.58566 -24.98450 -23.94728 -22.91351 -21.46240 -20.47963 -19.05516 -18.15590 -17.66051 -16.74183 -16.51874 -15.84644 -15.44027 -15.20923 -14.95943 -14.80770 -14.72724 -14.43288 -14.25239 -14.03843 -13.87294 -13.52623 -13.29351 -13.19254 -13.07633 -12.74388 -12.65477 -12.59001 -12.33133 -12.19410 -11.93186 -11.79323 -11.72926 -11.37366 -11.24011 -11.14538 -11.07561 -11.01798 -10.85082 -10.76980 -10.73811 -10.43732 -9.79140 -9.33294 -9.07748 -9.07682 -8.66469 -8.47705 -8.21909 -6.50164 -6.22025 -3.92456 1.78564 2.95378 3.06921 3.21148 3.26263 3.30957 3.60880 3.93395 4.19876 4.48312 4.53607 4.59260 4.61324 4.68762 4.84442 4.89868 4.98118 5.06170 5.09906 5.13246 5.15338 5.17973 5.19939 5.23125 5.32770 5.38047 5.40995 5.44497 5.48604 5.53785 5.59986 5.60816 5.64834 5.66785 5.70675 5.72522 5.75242 5.83058 5.88686 5.93398 5.99861 6.08086 6.12286 6.24199 6.33442 6.51186 6.67950 6.76113 7.12452 7.58438 7.60279 8.35075 8.58067 9.23411 10.85461 Molecular weight = 340.19amu Principal moments of inertia in cm(-1) A = 0.014121 B = 0.001948 C = 0.001743 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1982.384234 B =14370.600902 C =16064.148874 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.116 4.116 2 C -0.131 4.131 3 C -0.124 4.124 4 C -0.160 4.160 5 C 0.081 3.919 6 N -0.686 5.686 7 C 0.053 3.947 8 C -0.106 4.106 9 C -0.101 4.101 10 H 0.077 0.923 11 C -0.111 4.111 12 C -0.136 4.136 13 C 0.107 3.893 14 N -0.620 5.620 15 C 0.535 3.465 16 O -0.519 6.519 17 C -0.150 4.150 18 S -0.062 6.062 19 C -0.534 4.534 20 H 0.073 0.927 21 C 0.073 3.927 22 N -0.867 5.867 23 Si 0.919 3.081 24 H -0.272 1.272 25 H -0.280 1.280 26 H -0.280 1.280 27 C 0.117 3.883 28 H 0.061 0.939 29 H 0.063 0.937 30 H 0.066 0.934 31 H 0.065 0.935 32 H 0.062 0.938 33 H 0.068 0.932 34 H 0.113 0.887 35 H 0.042 0.958 36 H 0.077 0.923 37 H 0.339 0.661 38 H 0.036 0.964 39 H 0.073 0.927 40 H 0.074 0.926 41 H 0.062 0.938 42 H 0.065 0.935 43 H 0.063 0.937 44 H 0.068 0.932 45 H 0.074 0.926 46 H 0.089 0.911 47 H 0.066 0.934 48 H 0.089 0.911 49 H 0.089 0.911 50 H 0.268 0.732 51 H 0.060 0.940 52 H 0.092 0.908 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -25.305 -10.257 -4.057 27.605 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 -0.173 4.173 2 C -0.132 4.132 3 C -0.180 4.180 4 C -0.178 4.178 5 C -0.048 4.048 6 N -0.317 5.317 7 C -0.076 4.076 8 C -0.145 4.145 9 C -0.121 4.121 10 H 0.095 0.905 11 C -0.149 4.149 12 C -0.174 4.174 13 C -0.016 4.016 14 N -0.356 5.356 15 C 0.323 3.677 16 O -0.393 6.393 17 C -0.301 4.301 18 S 0.165 5.835 19 C -0.683 4.683 20 H 0.091 0.909 21 C -0.136 4.136 22 N -0.503 5.503 23 Si 0.745 3.255 24 H -0.196 1.196 25 H -0.206 1.206 26 H -0.206 1.206 27 C -0.006 4.006 28 H 0.080 0.920 29 H 0.082 0.918 30 H 0.085 0.915 31 H 0.084 0.916 32 H 0.081 0.919 33 H 0.086 0.914 34 H 0.131 0.869 35 H 0.060 0.940 36 H 0.095 0.905 37 H 0.157 0.843 38 H 0.054 0.946 39 H 0.092 0.908 40 H 0.092 0.908 41 H 0.081 0.919 42 H 0.083 0.917 43 H 0.082 0.918 44 H 0.087 0.913 45 H 0.093 0.907 46 H 0.107 0.893 47 H 0.084 0.916 48 H 0.107 0.893 49 H 0.107 0.893 50 H 0.078 0.922 51 H 0.079 0.921 52 H 0.110 0.890 Dipole moment (debyes) X Y Z Total from point charges -25.807 -9.500 -2.349 27.600 hybrid contribution 1.757 -0.346 -1.700 2.469 sum -24.050 -9.846 -4.049 26.301 Atomic orbital electron populations 1.20832 0.92111 1.02364 1.01975 1.21697 0.95840 0.95194 1.00489 1.20888 0.99978 0.94963 1.02189 1.22622 0.95339 0.97501 1.02375 1.21055 0.93136 0.95691 0.94879 1.60454 1.07800 1.55928 1.07482 1.22082 0.87575 0.98785 0.99138 1.21525 0.94515 1.00881 0.97536 1.21522 0.95318 0.95731 0.99568 0.90487 1.21542 0.95711 0.99162 0.98483 1.21930 0.96157 0.96812 1.02536 1.21715 1.00636 0.87958 0.91339 1.48094 1.06898 1.38250 1.42312 1.20332 0.87786 0.79581 0.80014 1.90679 1.79312 1.36432 1.32921 1.23552 0.94287 1.06494 1.05743 1.85398 1.01301 1.44546 1.52302 1.22902 0.92118 1.25008 1.28225 0.90900 1.24992 0.99404 0.94499 0.94706 1.70032 1.32292 1.21429 1.26525 0.86117 0.82489 0.78278 0.78611 1.19611 1.20566 1.20568 1.21617 0.80550 0.96906 1.01498 0.92024 0.91837 0.91523 0.91594 0.91881 0.91359 0.86881 0.94003 0.90510 0.84347 0.94599 0.90811 0.90770 0.91946 0.91672 0.91834 0.91280 0.90729 0.89286 0.91617 0.89289 0.89322 0.92249 0.92143 0.88994 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 -0.12 -0.69 10.09 36.00 0.36 -0.32 16 2 C -0.13 -0.98 6.05 -101.07 -0.61 -1.59 16 3 C -0.12 -0.88 8.93 36.00 0.32 -0.56 16 4 C -0.16 -1.29 9.37 -36.03 -0.34 -1.62 16 5 C 0.08 0.70 5.75 -4.98 -0.03 0.68 16 6 N -0.69 -5.99 6.49 -115.06 -0.75 -6.73 16 7 C 0.05 0.49 5.45 -3.83 -0.02 0.47 16 8 C -0.11 -0.86 4.94 -26.74 -0.13 -1.00 16 9 C -0.10 -0.98 2.34 -90.50 -0.21 -1.19 16 10 H 0.08 0.86 8.14 -51.93 -0.42 0.44 16 11 C -0.11 -0.92 5.17 -26.69 -0.14 -1.05 16 12 C -0.14 -1.23 6.08 -26.61 -0.16 -1.39 16 13 C 0.11 1.18 6.34 -3.71 -0.02 1.16 16 14 N -0.62 -8.93 2.97 -172.77 -0.51 -9.45 16 15 C 0.53 10.34 7.72 -10.98 -0.08 10.26 16 16 O -0.52 -11.99 15.27 5.56 0.08 -11.90 16 17 C -0.15 -3.09 4.50 36.01 0.16 -2.93 16 18 S -0.06 -1.70 20.57 -107.50 -2.21 -3.92 16 19 C -0.53 -15.26 9.50 30.94 0.29 -14.97 16 20 H 0.07 1.97 7.80 -52.48 -0.41 1.56 16 21 C 0.07 2.09 5.49 -17.43 -0.10 2.00 16 22 N -0.87 -26.23 13.22 55.49 0.73 -25.49 16 23 Si 0.92 21.42 29.55 -169.99 -5.02 16.40 16 24 H -0.27 -6.12 7.11 56.52 0.40 -5.72 16 25 H -0.28 -6.42 7.11 56.52 0.40 -6.02 16 26 H -0.28 -6.42 7.11 56.52 0.40 -6.02 16 27 C 0.12 1.43 5.33 -3.71 -0.02 1.41 16 28 H 0.06 0.34 7.79 -51.93 -0.40 -0.06 16 29 H 0.06 0.34 8.14 -51.93 -0.42 -0.08 16 30 H 0.07 0.36 8.14 -51.93 -0.42 -0.07 16 31 H 0.07 0.46 8.14 -51.93 -0.42 0.04 16 32 H 0.06 0.39 8.09 -51.93 -0.42 -0.03 16 33 H 0.07 0.51 6.67 -51.93 -0.35 0.17 16 34 H 0.11 0.90 7.85 -52.49 -0.41 0.48 16 35 H 0.04 0.37 5.72 -51.93 -0.30 0.08 16 36 H 0.08 0.71 8.14 -51.92 -0.42 0.29 16 37 H 0.34 2.68 8.72 -39.29 -0.34 2.34 16 38 H 0.04 0.37 6.70 -51.93 -0.35 0.02 16 39 H 0.07 0.75 8.14 -51.93 -0.42 0.33 16 40 H 0.07 0.60 8.14 -51.93 -0.42 0.18 16 41 H 0.06 0.47 8.14 -51.93 -0.42 0.04 16 42 H 0.06 0.48 8.14 -51.93 -0.42 0.06 16 43 H 0.06 0.48 8.14 -51.93 -0.42 0.06 16 44 H 0.07 0.70 8.14 -51.93 -0.42 0.28 16 45 H 0.07 0.54 8.14 -51.93 -0.42 0.12 16 46 H 0.09 1.02 5.93 -51.93 -0.31 0.71 16 47 H 0.07 0.63 8.14 -51.93 -0.42 0.21 16 48 H 0.09 1.70 7.69 -51.92 -0.40 1.30 16 49 H 0.09 1.69 7.94 -51.91 -0.41 1.28 16 50 H 0.27 7.50 8.31 -40.82 -0.34 7.16 16 51 H 0.06 0.66 8.14 -51.93 -0.42 0.24 16 52 H 0.09 1.32 5.73 -51.93 -0.30 1.02 16 LS Contribution 421.41 15.07 6.35 6.35 Total: -1.00 -33.50 421.41 -11.50 -45.00 By element: Atomic # 1 Polarization: 9.84 SS G_CDS: -9.45 Total: 0.39 kcal Atomic # 6 Polarization: -9.92 SS G_CDS: -0.72 Total: -10.65 kcal Atomic # 7 Polarization: -41.15 SS G_CDS: -0.53 Total: -41.67 kcal Atomic # 8 Polarization: -11.99 SS G_CDS: 0.08 Total: -11.90 kcal Atomic # 14 Polarization: 21.42 SS G_CDS: -5.02 Total: 16.40 kcal Atomic # 16 Polarization: -1.70 SS G_CDS: -2.21 Total: -3.92 kcal Total LS contribution 6.35 Total: 6.35 kcal Total: -33.50 -11.50 -45.00 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. ZINC001732266147.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 0.674 kcal (2) G-P(sol) polarization free energy of solvation -33.500 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -32.826 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -11.503 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -45.003 kcal (6) G-S(sol) free energy of system = (1) + (5) -44.329 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.76 seconds