Wall clock time and date at job start Sat Apr 11 2020 08:07:05 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 N 2 2 C 1.31619 * 1 3 3 Si 1.86804 * 119.99559 * 2 1 4 4 H 1.48497 * 109.46725 * 240.00034 * 3 2 1 5 5 H 1.48498 * 109.47172 * 359.97438 * 3 2 1 6 6 H 1.48501 * 109.46920 * 120.00247 * 3 2 1 7 7 C 1.38801 * 120.00176 * 180.02562 * 2 1 3 8 8 H 1.08006 * 120.00073 * 179.97438 * 7 2 1 9 9 N 1.36936 * 120.00093 * 0.02562 * 7 2 1 10 10 C 1.46505 * 119.99992 * 180.02562 * 9 7 2 11 11 C 1.52997 * 109.47212 * 179.97438 * 10 9 7 12 12 H 1.09000 * 109.47325 * 294.99862 * 11 10 9 13 13 N 1.46500 * 109.47170 * 54.99826 * 11 10 9 14 14 C 1.34779 * 120.00196 * 204.99986 * 13 11 10 15 15 O 1.21277 * 119.99823 * 0.02562 * 14 13 11 16 16 C 1.50698 * 119.99934 * 180.02562 * 14 13 11 17 17 C 1.53004 * 109.47055 * 180.02562 * 16 14 13 18 18 C 1.50698 * 109.47055 * 179.97438 * 17 16 14 19 19 C 1.38600 * 120.79868 * 269.71924 * 18 17 16 20 20 N 1.32333 * 119.10315 * 179.72148 * 19 18 17 21 21 C 1.31798 * 120.81528 * 0.56590 * 20 19 18 22 22 N 1.31791 * 121.75868 * 359.70614 * 21 20 19 23 23 C 1.32334 * 120.81411 * 0.02562 * 22 21 20 24 24 C 1.52994 * 109.47404 * 174.99693 * 11 10 9 25 25 C 1.53001 * 109.47368 * 300.00470 * 24 11 10 26 26 C 1.53001 * 109.47242 * 180.02562 * 25 24 11 27 27 C 1.52997 * 109.47624 * 59.99472 * 26 25 24 28 28 C 1.53001 * 109.47049 * 300.00188 * 27 26 25 29 29 C 1.52997 * 109.47404 * 180.02562 * 24 11 10 30 30 H 0.97001 * 120.00803 * 359.97438 * 1 2 3 31 31 H 0.96996 * 120.00401 * 359.97438 * 9 7 2 32 32 H 1.09002 * 109.47068 * 299.99856 * 10 9 7 33 33 H 1.09001 * 109.47372 * 59.99943 * 10 9 7 34 34 H 0.96998 * 120.00051 * 24.99940 * 13 11 10 35 35 H 1.09001 * 109.47074 * 299.99924 * 16 14 13 36 36 H 1.09000 * 109.47173 * 60.00158 * 16 14 13 37 37 H 1.09001 * 109.46839 * 299.99727 * 17 16 14 38 38 H 1.09000 * 109.47279 * 59.99883 * 17 16 14 39 39 H 1.07998 * 120.44832 * 0.02562 * 19 18 17 40 40 H 1.08010 * 119.12341 * 179.73223 * 21 20 19 41 41 H 1.08004 * 120.44702 * 179.97438 * 23 22 21 42 42 H 1.09008 * 109.46970 * 60.00049 * 24 11 10 43 43 H 1.09008 * 109.46711 * 299.99168 * 25 24 11 44 44 H 1.08996 * 109.47271 * 59.99107 * 25 24 11 45 45 H 1.09008 * 109.46876 * 299.99444 * 26 25 24 46 46 H 1.09000 * 109.46891 * 179.97438 * 26 25 24 47 47 H 1.08994 * 109.47445 * 180.02562 * 27 26 25 48 48 H 1.08996 * 109.47166 * 59.99711 * 27 26 25 49 49 H 1.08998 * 109.47252 * 299.99805 * 28 27 26 50 50 H 1.09004 * 109.47455 * 179.97438 * 28 27 26 51 51 H 1.09000 * 109.47325 * 300.00168 * 29 24 11 52 52 H 1.08995 * 109.47630 * 59.99990 * 29 24 11 Note: An asterisk (*) indicates this parameter was or will be optimized. Cartesian coordinates (angstroms) NO. Atom X Y Z 1 7 0.0000 0.0000 0.0000 2 6 1.3162 0.0000 0.0000 3 14 2.2501 1.6178 0.0000 4 1 3.1038 1.6965 -1.2125 5 1 1.2850 2.7465 -0.0006 6 1 3.1039 1.6965 1.2125 7 6 2.0102 -1.2020 -0.0005 8 1 3.0903 -1.2020 -0.0010 9 7 1.3256 -2.3880 -0.0016 10 6 2.0582 -3.6567 -0.0016 11 6 1.0640 -4.8197 -0.0022 12 1 0.4975 -4.8139 0.9289 13 7 0.1449 -4.6758 -1.1340 14 6 -1.0795 -5.2367 -1.0832 15 8 -1.4206 -5.8602 -0.1005 16 6 -2.0247 -5.0892 -2.2477 17 6 -3.3357 -5.8135 -1.9353 18 6 -4.2811 -5.6655 -3.0994 19 6 -5.1668 -4.6013 -3.1635 20 7 -5.9783 -4.5010 -4.2040 21 6 -5.9586 -5.4028 -5.1650 22 7 -5.1341 -6.4305 -5.1350 23 6 -4.2903 -6.5935 -4.1287 24 6 1.8249 -6.1410 -0.1280 25 6 2.6202 -6.1492 -1.4350 26 6 3.3806 -7.4709 -1.5611 27 6 2.3861 -8.6335 -1.5620 28 6 1.5908 -8.6253 -0.2550 29 6 0.8307 -7.3039 -0.1293 30 1 -0.4851 0.8400 0.0004 31 1 0.3556 -2.3881 -0.0016 32 1 2.6855 -3.7140 -0.8911 33 1 2.6842 -3.7148 0.8888 34 1 0.4176 -4.1769 -1.9198 35 1 -2.2263 -4.0320 -2.4203 36 1 -1.5729 -5.5234 -3.1396 37 1 -3.1344 -6.8707 -1.7624 38 1 -3.7873 -5.3790 -1.0434 39 1 -5.1909 -3.8612 -2.3773 40 1 -6.6359 -5.2964 -5.9996 41 1 -3.6175 -7.4382 -4.1100 42 1 2.5088 -6.2481 0.7141 43 1 1.9364 -6.0422 -2.2771 44 1 3.3284 -5.3207 -1.4346 45 1 4.0645 -7.5784 -0.7191 46 1 3.9469 -7.4768 -2.4925 47 1 2.9278 -9.5750 -1.6514 48 1 1.7023 -8.5260 -2.4040 49 1 2.2746 -8.7328 0.5871 50 1 0.8819 -9.4533 -0.2557 51 1 0.2638 -7.2984 0.8016 52 1 0.1472 -7.1968 -0.9715 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 ZINC001319655515.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 08:07:05 Heat of formation + Delta-G solvation = -8.341144 kcal Electronic energy + Delta-G solvation = -30987.001465 eV Core-core repulsion = 26985.511648 eV Total energy + Delta-G solvation = -4001.489817 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 346.211 amu Computer time = 0.85 seconds Orbital eigenvalues (eV) -41.22901 -40.18187 -38.15946 -35.80088 -34.81365 -33.88842 -33.60810 -31.70152 -30.78109 -30.51044 -30.14381 -27.19360 -25.55292 -24.79063 -23.90652 -22.77607 -22.38241 -21.74162 -20.47688 -20.04990 -19.27852 -17.83529 -17.79938 -17.33761 -16.86671 -15.97668 -15.64979 -15.07897 -14.85856 -14.68706 -14.44656 -14.16110 -14.07815 -13.99752 -13.86705 -13.74936 -13.33606 -13.32105 -13.15875 -12.85828 -12.42847 -12.34967 -12.21784 -11.92314 -11.65764 -11.29024 -11.10556 -11.02313 -11.00689 -10.98963 -10.94824 -10.82130 -10.79231 -10.40084 -10.22788 -10.09654 -9.80413 -9.75550 -9.67678 -9.41662 -9.39207 -8.92822 -8.57605 -6.99307 -5.82278 -3.11769 0.66053 0.86006 2.92034 3.39626 3.42747 3.45113 3.45746 3.61734 3.94440 4.02173 4.39411 4.50806 4.54573 4.61929 4.75359 4.80412 4.83722 4.89077 5.11171 5.13466 5.21863 5.28685 5.33646 5.43106 5.48102 5.50120 5.53721 5.57013 5.60029 5.63370 5.72691 5.82474 5.91773 5.93591 5.95051 5.98701 6.07456 6.13162 6.16698 6.18945 6.27180 6.31606 6.43086 6.46880 6.51907 6.62054 6.70902 6.73297 6.95716 7.63665 7.85260 7.85861 8.35861 8.53837 9.47818 10.03653 10.39044 11.39944 Molecular weight = 346.21amu Principal moments of inertia in cm(-1) A = 0.006316 B = 0.003631 C = 0.002459 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 4432.046171 B = 7710.278283 C =11385.656769 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 N -0.931 5.931 2 C -0.010 4.010 3 Si 0.907 3.093 4 H -0.286 1.286 5 H -0.291 1.291 6 H -0.286 1.286 7 C -0.243 4.243 8 H 0.069 0.931 9 N -0.730 5.730 10 C 0.142 3.858 11 C 0.143 3.857 12 H 0.086 0.914 13 N -0.707 5.707 14 C 0.516 3.484 15 O -0.545 6.545 16 C -0.139 4.139 17 C -0.055 4.055 18 C -0.182 4.182 19 C 0.152 3.848 20 N -0.518 5.518 21 C 0.282 3.718 22 N -0.521 5.521 23 C 0.148 3.852 24 C -0.093 4.093 25 C -0.115 4.115 26 C -0.118 4.118 27 C -0.117 4.117 28 C -0.121 4.121 29 C -0.103 4.103 30 H 0.256 0.744 31 H 0.385 0.615 32 H 0.029 0.971 33 H 0.031 0.969 34 H 0.403 0.597 35 H 0.097 0.903 36 H 0.089 0.911 37 H 0.085 0.915 38 H 0.089 0.911 39 H 0.170 0.830 40 H 0.194 0.806 41 H 0.167 0.833 42 H 0.075 0.925 43 H 0.060 0.940 44 H 0.068 0.932 45 H 0.059 0.941 46 H 0.056 0.944 47 H 0.054 0.946 48 H 0.057 0.943 49 H 0.057 0.943 50 H 0.055 0.945 51 H 0.067 0.933 52 H 0.061 0.939 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -3.372 -17.470 -7.356 19.253 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 N -0.579 5.579 2 C -0.207 4.207 3 Si 0.737 3.263 4 H -0.213 1.213 5 H -0.217 1.217 6 H -0.213 1.213 7 C -0.374 4.374 8 H 0.087 0.913 9 N -0.375 5.375 10 C 0.014 3.986 11 C 0.039 3.961 12 H 0.104 0.896 13 N -0.357 5.357 14 C 0.302 3.698 15 O -0.423 6.423 16 C -0.179 4.179 17 C -0.094 4.094 18 C -0.186 4.186 19 C -0.014 4.014 20 N -0.231 5.231 21 C -0.006 4.006 22 N -0.234 5.234 23 C -0.018 4.018 24 C -0.113 4.113 25 C -0.152 4.152 26 C -0.156 4.156 27 C -0.155 4.155 28 C -0.158 4.158 29 C -0.140 4.140 30 H 0.066 0.934 31 H 0.220 0.780 32 H 0.046 0.954 33 H 0.048 0.952 34 H 0.238 0.762 35 H 0.116 0.884 36 H 0.108 0.892 37 H 0.104 0.896 38 H 0.107 0.893 39 H 0.187 0.813 40 H 0.210 0.790 41 H 0.184 0.816 42 H 0.093 0.907 43 H 0.078 0.922 44 H 0.087 0.913 45 H 0.078 0.922 46 H 0.075 0.925 47 H 0.072 0.928 48 H 0.076 0.924 49 H 0.076 0.924 50 H 0.074 0.926 51 H 0.086 0.914 52 H 0.079 0.921 Dipole moment (debyes) X Y Z Total from point charges -4.116 -17.671 -7.432 19.607 hybrid contribution 0.929 1.247 0.283 1.580 sum -3.188 -16.424 -7.149 18.194 Atomic orbital electron populations 1.69644 1.05087 1.25817 1.57394 1.24723 0.95490 0.97649 1.02794 0.86284 0.78548 0.83576 0.77847 1.21284 1.21684 1.21267 1.19159 0.90976 0.84114 1.43195 0.91268 1.42330 1.05945 0.99710 1.89548 1.21035 0.93266 0.85372 0.98896 1.21271 0.90662 0.94188 0.90028 0.89584 1.45939 1.14647 1.54418 1.20682 1.20339 0.82208 0.78715 0.88555 1.90685 1.76162 1.41641 1.33803 1.21662 0.94860 1.03497 0.97854 1.20201 0.92082 1.02532 0.94541 1.21784 0.99967 0.97555 0.99272 1.23300 0.88445 0.94885 0.94741 1.68455 1.23344 1.28649 1.02609 1.24961 0.94172 0.85461 0.95957 1.68425 1.06031 1.22951 1.25959 1.23183 0.93780 0.97042 0.87796 1.21516 0.97023 0.94556 0.98191 1.21628 0.98907 0.97084 0.97614 1.21528 0.97724 0.95018 1.01285 1.21519 0.98047 0.97904 0.98014 1.21574 0.98797 0.98067 0.97381 1.21590 0.96945 0.92725 1.02766 0.93440 0.78044 0.95364 0.95176 0.76239 0.88423 0.89221 0.89603 0.89281 0.81260 0.78955 0.81621 0.90697 0.92162 0.91306 0.92217 0.92488 0.92755 0.92424 0.92433 0.92639 0.91405 0.92064 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 N -0.93 -27.24 13.06 55.49 0.72 -26.51 16 2 C -0.01 -0.29 5.50 -17.43 -0.10 -0.38 16 3 Si 0.91 21.85 29.55 -169.99 -5.02 16.83 16 4 H -0.29 -6.77 7.11 56.52 0.40 -6.37 16 5 H -0.29 -7.10 7.11 56.52 0.40 -6.70 16 6 H -0.29 -6.83 7.11 56.52 0.40 -6.43 16 7 C -0.24 -6.52 9.99 -15.06 -0.15 -6.67 16 8 H 0.07 1.80 7.83 -52.48 -0.41 1.39 16 9 N -0.73 -17.29 5.43 -59.91 -0.33 -17.62 16 10 C 0.14 2.61 5.60 -4.04 -0.02 2.58 16 11 C 0.14 2.20 2.16 -67.94 -0.15 2.05 16 12 H 0.09 1.54 7.58 -51.93 -0.39 1.15 16 13 N -0.71 -9.91 3.64 -53.81 -0.20 -10.11 16 14 C 0.52 7.02 6.18 -10.99 -0.07 6.96 16 15 O -0.54 -8.79 13.11 5.56 0.07 -8.71 16 16 C -0.14 -1.43 5.68 -27.88 -0.16 -1.59 16 17 C -0.05 -0.52 4.68 -27.88 -0.13 -0.65 16 18 C -0.18 -1.71 5.17 -104.36 -0.54 -2.25 16 19 C 0.15 1.57 11.01 -17.20 -0.19 1.38 16 20 N -0.52 -5.88 10.44 -14.58 -0.15 -6.03 16 21 C 0.28 2.86 12.28 -92.15 -1.13 1.73 16 22 N -0.52 -5.53 10.44 -14.58 -0.15 -5.69 16 23 C 0.15 1.38 11.01 -17.20 -0.19 1.19 16 24 C -0.09 -1.18 2.07 -90.62 -0.19 -1.36 16 25 C -0.11 -1.32 4.70 -26.73 -0.13 -1.44 16 26 C -0.12 -1.19 5.92 -26.73 -0.16 -1.34 16 27 C -0.12 -1.14 5.92 -26.73 -0.16 -1.30 16 28 C -0.12 -1.27 5.92 -26.75 -0.16 -1.43 16 29 C -0.10 -1.28 3.72 -26.75 -0.10 -1.38 16 30 H 0.26 7.31 8.31 -40.82 -0.34 6.97 16 31 H 0.39 9.73 7.33 -40.82 -0.30 9.43 16 32 H 0.03 0.51 6.18 -51.93 -0.32 0.18 16 33 H 0.03 0.57 8.14 -51.93 -0.42 0.15 16 34 H 0.40 5.52 8.60 -40.82 -0.35 5.17 16 35 H 0.10 1.05 8.14 -51.93 -0.42 0.63 16 36 H 0.09 0.76 8.14 -51.93 -0.42 0.34 16 37 H 0.09 0.79 8.06 -51.93 -0.42 0.37 16 38 H 0.09 0.93 8.06 -51.93 -0.42 0.51 16 39 H 0.17 1.49 8.06 -52.49 -0.42 1.07 16 40 H 0.19 1.36 8.06 -52.48 -0.42 0.93 16 41 H 0.17 1.13 8.06 -52.48 -0.42 0.71 16 42 H 0.07 0.95 8.14 -51.92 -0.42 0.53 16 43 H 0.06 0.69 7.60 -51.92 -0.39 0.30 16 44 H 0.07 0.84 6.32 -51.93 -0.33 0.51 16 45 H 0.06 0.59 8.14 -51.92 -0.42 0.17 16 46 H 0.06 0.53 8.14 -51.93 -0.42 0.11 16 47 H 0.05 0.47 8.14 -51.93 -0.42 0.05 16 48 H 0.06 0.57 8.14 -51.93 -0.42 0.14 16 49 H 0.06 0.60 8.14 -51.93 -0.42 0.17 16 50 H 0.05 0.56 8.14 -51.93 -0.42 0.14 16 51 H 0.07 0.97 7.53 -51.93 -0.39 0.58 16 52 H 0.06 0.80 5.78 -51.93 -0.30 0.50 16 LS Contribution 409.30 15.07 6.17 6.17 Total: -1.00 -31.61 409.30 -11.25 -42.87 By element: Atomic # 1 Polarization: 21.37 SS G_CDS: -8.66 Total: 12.71 kcal Atomic # 6 Polarization: -0.19 SS G_CDS: -3.71 Total: -3.90 kcal Atomic # 7 Polarization: -65.86 SS G_CDS: -0.10 Total: -65.96 kcal Atomic # 8 Polarization: -8.79 SS G_CDS: 0.07 Total: -8.71 kcal Atomic # 14 Polarization: 21.85 SS G_CDS: -5.02 Total: 16.83 kcal Total LS contribution 6.17 Total: 6.17 kcal Total: -31.61 -11.25 -42.87 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. ZINC001319655515.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 34.525 kcal (2) G-P(sol) polarization free energy of solvation -31.613 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 2.912 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -11.253 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -42.866 kcal (6) G-S(sol) free energy of system = (1) + (5) -8.341 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.85 seconds