Wall clock time and date at job start Sat Apr 11 2020 06:09:53 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 1.53000 * 1 3 3 C 1.52997 * 109.47416 * 2 1 4 4 C 1.53003 * 109.47165 * 299.99758 * 3 2 1 5 5 C 1.52997 * 109.47504 * 300.00478 * 4 3 2 6 6 C 1.52995 * 109.47723 * 180.02562 * 5 4 3 7 7 N 1.46902 * 109.47472 * 174.99648 * 6 5 4 8 8 C 1.47959 * 110.99798 * 269.35637 * 7 6 5 9 9 C 1.53940 * 86.17705 * 222.41915 * 8 7 6 10 10 C 1.47960 * 110.99908 * 169.99515 * 7 6 5 11 11 H 1.09003 * 113.85649 * 23.25635 * 10 7 6 12 12 C 1.52996 * 113.76162 * 251.90151 * 10 7 6 13 13 N 1.46498 * 109.47059 * 58.93300 * 12 10 7 14 14 C 1.34777 * 119.99828 * 179.72339 * 13 12 10 15 15 O 1.21283 * 120.00222 * 0.28168 * 14 13 12 16 16 C 1.50703 * 120.00290 * 180.27728 * 14 13 12 17 17 S 1.81000 * 109.47389 * 180.02562 * 16 14 13 18 18 C 1.76198 * 99.99715 * 179.97438 * 17 16 14 19 19 H 1.08001 * 120.00516 * 0.02562 * 18 17 16 20 20 C 1.38803 * 119.99710 * 179.97438 * 18 17 16 21 21 N 1.31626 * 120.00053 * 180.02562 * 20 18 17 22 22 Si 1.86798 * 120.00174 * 0.02562 * 20 18 17 23 23 H 1.48500 * 109.47356 * 89.99148 * 22 20 18 24 24 H 1.48497 * 109.47342 * 209.99750 * 22 20 18 25 25 H 1.48505 * 109.46847 * 329.99403 * 22 20 18 26 26 C 1.53002 * 109.47345 * 59.99264 * 5 4 3 27 27 C 1.53001 * 109.47129 * 300.00546 * 26 5 4 28 28 H 1.09003 * 109.46578 * 60.00087 * 1 2 3 29 29 H 1.08992 * 109.47221 * 180.02562 * 1 2 3 30 30 H 1.09000 * 109.47166 * 300.00542 * 1 2 3 31 31 H 1.08995 * 109.47175 * 120.00152 * 2 1 3 32 32 H 1.09002 * 109.47225 * 180.02562 * 3 2 1 33 33 H 1.09000 * 109.47395 * 59.99598 * 3 2 1 34 34 H 1.08997 * 109.47702 * 179.97438 * 4 3 2 35 35 H 1.09007 * 109.47163 * 60.00050 * 4 3 2 36 36 H 1.09007 * 109.46561 * 299.99941 * 5 4 3 37 37 H 1.09002 * 109.47226 * 54.99367 * 6 5 4 38 38 H 1.09008 * 109.46590 * 294.99870 * 6 5 4 39 39 H 1.09002 * 113.75752 * 108.09787 * 8 7 6 40 40 H 1.08995 * 113.76061 * 336.73481 * 8 7 6 41 41 H 1.09002 * 113.72875 * 269.35924 * 9 8 7 42 42 H 1.08999 * 113.82957 * 138.09623 * 9 8 7 43 43 H 1.09004 * 109.47066 * 298.93568 * 12 10 7 44 44 H 1.08994 * 109.46974 * 178.93715 * 12 10 7 45 45 H 0.97001 * 120.00384 * 0.02562 * 13 12 10 46 46 H 1.08998 * 109.46954 * 300.00581 * 16 14 13 47 47 H 1.09002 * 109.46946 * 59.99717 * 16 14 13 48 48 H 0.97000 * 120.00636 * 180.02562 * 21 20 18 49 49 H 1.08993 * 109.46839 * 60.00724 * 26 5 4 50 50 H 1.08999 * 109.46739 * 180.02562 * 26 5 4 51 51 H 1.09001 * 109.47164 * 300.00037 * 27 26 5 52 52 H 1.09000 * 109.46998 * 179.97438 * 27 26 5 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 2.0401 1.4424 0.0000 4 6 1.5301 2.1637 -1.2493 5 6 2.0400 1.4425 -2.4985 6 6 1.5307 2.1640 -3.7478 7 7 2.1164 1.5447 -4.9442 8 6 3.3873 2.2054 -5.3150 9 6 2.8887 2.1185 -6.7689 10 6 1.4703 2.0525 -6.1745 11 1 0.9987 3.0279 -6.0544 12 6 0.5614 1.0306 -6.8604 13 7 -0.4919 0.6131 -5.9317 14 6 -1.4184 -0.2841 -6.3230 15 8 -1.3772 -0.7496 -7.4422 16 6 -2.5057 -0.7090 -5.3699 17 16 -3.5844 -1.9136 -6.1832 18 6 -4.7284 -2.2283 -4.8806 19 1 -4.6203 -1.7219 -3.9329 20 6 -5.7691 -3.1264 -5.0730 21 7 -6.6240 -3.3612 -4.1001 22 14 -5.9564 -4.0018 -6.7125 23 1 -5.1929 -5.2751 -6.6839 24 1 -7.3921 -4.2909 -6.9581 25 1 -5.4332 -3.1351 -7.7989 26 6 1.5300 -0.0001 -2.4985 27 6 2.0400 -0.7213 -1.2492 28 1 -0.3632 0.5138 -0.8900 29 1 -0.3633 -1.0276 0.0005 30 1 -0.3633 0.5139 0.8899 31 1 1.8933 -0.5138 0.8899 32 1 3.1301 1.4424 -0.0005 33 1 1.6767 1.9564 0.8899 34 1 1.8931 3.1915 -1.2491 35 1 0.4401 2.1638 -1.2493 36 1 3.1301 1.4424 -2.4985 37 1 1.8194 3.2142 -3.7040 38 1 0.4443 2.0876 -3.7939 39 1 4.2714 1.5994 -5.1169 40 1 3.4771 3.2255 -4.9418 41 1 3.1919 1.2063 -7.2828 42 1 3.0779 3.0185 -7.3538 43 1 1.1498 0.1622 -7.1567 44 1 0.1093 1.4817 -7.7436 45 1 -0.5251 0.9856 -5.0367 46 1 -2.0571 -1.1621 -4.4858 47 1 -3.0907 0.1620 -5.0745 48 1 -7.3511 -3.9890 -4.2343 49 1 0.4401 0.0000 -2.4985 50 1 1.8937 -0.5140 -3.3883 51 1 3.1300 -0.7213 -1.2492 52 1 1.6763 -1.7488 -1.2490 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 ZINC001733204698.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 06:09:53 Heat of formation + Delta-G solvation = -34.316651 kcal Electronic energy + Delta-G solvation = -28296.336201 eV Core-core repulsion = 24614.638731 eV Total energy + Delta-G solvation = -3681.697469 eV No. of doubly occupied orbitals = 63 Molecular weight (most abundant/longest-lived isotopes) = 340.193 amu Computer time = 0.63 seconds Orbital eigenvalues (eV) -40.73660 -39.21501 -38.78898 -34.39906 -33.64602 -32.41267 -30.94252 -30.28469 -29.52212 -27.64345 -26.89646 -25.58098 -24.11248 -23.43887 -22.75922 -21.00123 -20.43615 -19.84467 -18.75932 -17.86811 -16.62954 -16.38639 -16.18028 -15.90718 -15.27846 -15.17266 -14.94036 -14.76421 -14.53615 -14.33580 -13.94764 -13.77306 -13.44427 -13.21257 -13.02686 -12.78501 -12.77034 -12.55668 -12.32140 -12.22553 -11.92990 -11.78254 -11.55407 -11.53783 -11.29671 -11.23971 -11.14149 -10.99876 -10.98473 -10.87866 -10.55733 -10.30144 -10.16471 -10.05401 -9.83160 -9.46629 -9.08645 -8.98242 -8.85132 -8.46324 -6.88160 -6.26443 -3.97558 2.80023 3.06011 3.26603 3.35503 3.51112 3.53155 3.75351 4.15409 4.35675 4.36660 4.43212 4.50510 4.61150 4.72355 4.80259 4.82324 4.88470 4.94260 5.01894 5.09441 5.12758 5.19714 5.23546 5.26835 5.33106 5.35549 5.38076 5.40884 5.44985 5.49594 5.58040 5.63565 5.69823 5.76078 5.77358 5.81338 5.87551 5.88742 5.91970 5.96773 6.04816 6.06513 6.08341 6.17308 6.24103 6.34143 6.45259 6.63160 6.74555 7.69411 7.96679 8.44195 8.57378 9.19980 10.82849 Molecular weight = 340.19amu Principal moments of inertia in cm(-1) A = 0.009907 B = 0.003192 C = 0.002515 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2825.570271 B = 8770.068549 C =11128.348743 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.152 4.152 2 C -0.092 4.092 3 C -0.111 4.111 4 C -0.118 4.118 5 C -0.073 4.073 6 C 0.023 3.977 7 N -0.466 5.466 8 C 0.002 3.998 9 C -0.135 4.135 10 C 0.016 3.984 11 H 0.083 0.917 12 C 0.144 3.856 13 N -0.729 5.729 14 C 0.530 3.470 15 O -0.522 6.522 16 C -0.123 4.123 17 S -0.141 6.141 18 C -0.520 4.520 19 H 0.088 0.912 20 C 0.096 3.904 21 N -0.881 5.881 22 Si 0.856 3.144 23 H -0.267 1.267 24 H -0.275 1.275 25 H -0.235 1.235 26 C -0.109 4.109 27 C -0.115 4.115 28 H 0.062 0.938 29 H 0.055 0.945 30 H 0.050 0.950 31 H 0.064 0.936 32 H 0.058 0.942 33 H 0.059 0.941 34 H 0.056 0.944 35 H 0.067 0.933 36 H 0.067 0.933 37 H 0.043 0.957 38 H 0.070 0.930 39 H 0.089 0.911 40 H 0.068 0.932 41 H 0.095 0.905 42 H 0.074 0.926 43 H 0.072 0.928 44 H 0.069 0.931 45 H 0.396 0.604 46 H 0.096 0.904 47 H 0.094 0.906 48 H 0.270 0.730 49 H 0.062 0.938 50 H 0.073 0.927 51 H 0.056 0.944 52 H 0.062 0.938 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 22.798 15.228 4.734 27.822 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 -0.210 4.210 2 C -0.111 4.111 3 C -0.148 4.148 4 C -0.156 4.156 5 C -0.092 4.092 6 C -0.106 4.106 7 N -0.189 5.189 8 C -0.126 4.126 9 C -0.173 4.173 10 C -0.094 4.094 11 H 0.101 0.899 12 C 0.019 3.981 13 N -0.383 5.383 14 C 0.316 3.684 15 O -0.397 6.397 16 C -0.274 4.274 17 S 0.085 5.915 18 C -0.668 4.668 19 H 0.106 0.894 20 C -0.113 4.113 21 N -0.518 5.518 22 Si 0.681 3.319 23 H -0.192 1.192 24 H -0.200 1.200 25 H -0.159 1.159 26 C -0.146 4.146 27 C -0.152 4.152 28 H 0.081 0.919 29 H 0.074 0.926 30 H 0.069 0.931 31 H 0.083 0.917 32 H 0.077 0.923 33 H 0.078 0.922 34 H 0.074 0.926 35 H 0.086 0.914 36 H 0.085 0.915 37 H 0.062 0.938 38 H 0.088 0.912 39 H 0.107 0.893 40 H 0.087 0.913 41 H 0.114 0.886 42 H 0.093 0.907 43 H 0.090 0.910 44 H 0.087 0.913 45 H 0.230 0.770 46 H 0.114 0.886 47 H 0.113 0.887 48 H 0.080 0.920 49 H 0.081 0.919 50 H 0.092 0.908 51 H 0.075 0.925 52 H 0.080 0.920 Dipole moment (debyes) X Y Z Total from point charges 22.679 13.656 3.088 26.653 hybrid contribution -0.436 1.186 1.328 1.833 sum 22.243 14.842 4.416 27.103 Atomic orbital electron populations 1.21948 0.95033 1.02111 1.01859 1.21101 0.96174 0.95691 0.98112 1.21516 1.00185 0.95589 0.97547 1.21623 1.01325 0.98326 0.94315 1.21014 1.00179 0.95567 0.92443 1.22807 0.99699 0.96289 0.91808 1.68528 1.02916 1.47015 1.00393 1.23905 0.95232 0.98306 0.95197 1.23343 0.94016 1.03344 0.96639 1.23741 0.95646 0.97503 0.92517 0.89884 1.21171 0.88015 0.96996 0.91904 1.45853 1.29483 1.45819 1.17193 1.20245 0.81809 0.78159 0.88200 1.90694 1.74066 1.54046 1.20868 1.23265 0.98566 1.03975 1.01552 1.84775 1.31205 1.52831 1.22676 1.22324 1.13623 1.30745 1.00111 0.89440 1.24704 0.94200 0.95292 0.97068 1.69937 1.15194 1.34607 1.32059 0.86742 0.78355 0.81783 0.85028 1.19203 1.19986 1.15901 1.21517 1.00778 0.94439 0.97885 1.21569 1.00076 0.99117 0.94475 0.91876 0.92556 0.93100 0.91726 0.92344 0.92241 0.92558 0.91450 0.91463 0.93835 0.91179 0.89303 0.91346 0.88636 0.90749 0.90957 0.91304 0.76972 0.88618 0.88737 0.91979 0.91928 0.90784 0.92477 0.91970 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 -0.15 -1.45 8.50 37.16 0.32 -1.14 16 2 C -0.09 -0.79 3.19 -90.62 -0.29 -1.08 16 3 C -0.11 -0.84 5.45 -26.73 -0.15 -0.99 16 4 C -0.12 -0.88 4.93 -26.73 -0.13 -1.01 16 5 C -0.07 -0.58 2.38 -90.62 -0.22 -0.79 16 6 C 0.02 0.17 4.03 -3.83 -0.02 0.16 16 7 N -0.47 -3.83 5.30 -230.71 -1.22 -5.05 16 8 C 0.00 0.02 7.96 -2.76 -0.02 -0.01 16 9 C -0.14 -0.88 7.84 -25.80 -0.20 -1.09 16 10 C 0.02 0.13 3.38 -66.66 -0.23 -0.10 16 11 H 0.08 0.61 7.93 -51.93 -0.41 0.20 16 12 C 0.14 1.63 5.80 -4.04 -0.02 1.61 16 13 N -0.73 -9.70 5.50 -60.30 -0.33 -10.04 16 14 C 0.53 9.68 7.85 -10.98 -0.09 9.59 16 15 O -0.52 -11.50 15.86 5.55 0.09 -11.41 16 16 C -0.12 -2.43 6.16 36.01 0.22 -2.21 16 17 S -0.14 -3.63 18.55 -107.50 -1.99 -5.63 16 18 C -0.52 -15.13 10.04 30.94 0.31 -14.82 16 19 H 0.09 2.65 8.03 -52.49 -0.42 2.23 16 20 C 0.10 2.83 5.50 -17.43 -0.10 2.73 16 21 N -0.88 -26.77 13.97 55.49 0.78 -25.99 16 22 Si 0.86 21.99 27.74 -169.99 -4.72 17.28 16 23 H -0.27 -6.78 7.11 56.52 0.40 -6.38 16 24 H -0.27 -6.78 7.11 56.52 0.40 -6.38 16 25 H -0.24 -6.03 6.74 56.52 0.38 -5.65 16 26 C -0.11 -1.04 4.82 -26.73 -0.13 -1.17 16 27 C -0.11 -1.06 5.45 -26.73 -0.15 -1.20 16 28 H 0.06 0.62 4.81 -51.93 -0.25 0.37 16 29 H 0.06 0.58 8.14 -51.93 -0.42 0.16 16 30 H 0.05 0.45 8.14 -51.93 -0.42 0.03 16 31 H 0.06 0.54 8.14 -51.93 -0.42 0.12 16 32 H 0.06 0.43 8.14 -51.93 -0.42 0.00 16 33 H 0.06 0.43 8.14 -51.93 -0.42 0.01 16 34 H 0.06 0.38 8.14 -51.93 -0.42 -0.04 16 35 H 0.07 0.54 6.43 -51.92 -0.33 0.21 16 36 H 0.07 0.56 8.14 -51.92 -0.42 0.14 16 37 H 0.04 0.30 7.38 -51.93 -0.38 -0.08 16 38 H 0.07 0.57 6.40 -51.92 -0.33 0.24 16 39 H 0.09 0.57 8.14 -51.93 -0.42 0.15 16 40 H 0.07 0.39 7.48 -51.93 -0.39 0.00 16 41 H 0.10 0.67 7.94 -51.93 -0.41 0.26 16 42 H 0.07 0.39 8.14 -51.93 -0.42 -0.03 16 43 H 0.07 0.92 7.91 -51.93 -0.41 0.51 16 44 H 0.07 0.81 8.14 -51.93 -0.42 0.38 16 45 H 0.40 4.48 6.54 -40.82 -0.27 4.21 16 46 H 0.10 1.79 8.14 -51.92 -0.42 1.36 16 47 H 0.09 1.74 8.14 -51.92 -0.42 1.32 16 48 H 0.27 7.63 8.31 -40.82 -0.34 7.29 16 49 H 0.06 0.66 6.43 -51.93 -0.33 0.33 16 50 H 0.07 0.82 7.75 -51.93 -0.40 0.42 16 51 H 0.06 0.50 8.14 -51.93 -0.42 0.08 16 52 H 0.06 0.62 8.14 -51.93 -0.42 0.20 16 LS Contribution 408.47 15.07 6.16 6.16 Total: -1.00 -33.02 408.47 -11.54 -44.57 By element: Atomic # 1 Polarization: 11.06 SS G_CDS: -9.42 Total: 1.64 kcal Atomic # 6 Polarization: -10.64 SS G_CDS: -0.88 Total: -11.52 kcal Atomic # 7 Polarization: -40.30 SS G_CDS: -0.78 Total: -41.08 kcal Atomic # 8 Polarization: -11.50 SS G_CDS: 0.09 Total: -11.41 kcal Atomic # 14 Polarization: 21.99 SS G_CDS: -4.72 Total: 17.28 kcal Atomic # 16 Polarization: -3.63 SS G_CDS: -1.99 Total: -5.63 kcal Total LS contribution 6.16 Total: 6.16 kcal Total: -33.02 -11.54 -44.57 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. ZINC001733204698.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 10.252 kcal (2) G-P(sol) polarization free energy of solvation -33.023 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -22.772 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -11.545 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -44.568 kcal (6) G-S(sol) free energy of system = (1) + (5) -34.317 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.63 seconds