Wall clock time and date at job start Sat Apr 11 2020 06:11:26 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 O 1.42904 * 109.46810 * 2 1 4 4 C 1.42900 * 113.99555 * 180.02562 * 3 2 1 5 5 H 1.08995 * 109.47214 * 30.00131 * 4 3 2 6 6 C 1.50698 * 109.46818 * 150.00275 * 4 3 2 7 7 O 1.21286 * 120.00059 * 5.00053 * 6 4 3 8 8 N 1.34782 * 120.00290 * 185.00000 * 6 4 3 9 9 C 1.46493 * 120.00270 * 180.02562 * 8 6 4 10 10 C 1.53000 * 109.44809 * 299.96233 * 9 8 6 11 11 C 1.53045 * 109.45959 * 179.97438 * 9 8 6 12 12 C 1.53184 * 109.31045 * 301.34150 * 11 9 8 13 13 N 1.46928 * 108.89946 * 305.29664 * 12 11 9 14 14 C 1.36937 * 120.62751 * 233.68087 * 13 12 11 15 15 H 1.07999 * 120.00448 * 27.38666 * 14 13 12 16 16 C 1.38820 * 119.99269 * 207.39032 * 14 13 12 17 17 N 1.31613 * 120.00097 * 17.25596 * 16 14 13 18 18 Si 1.86807 * 119.99669 * 197.25602 * 16 14 13 19 19 H 1.48497 * 109.46957 * 60.00245 * 18 16 14 20 20 H 1.48494 * 109.47182 * 179.97438 * 18 16 14 21 21 H 1.48493 * 109.47157 * 300.00224 * 18 16 14 22 22 C 1.47200 * 118.55359 * 53.53256 * 13 12 11 23 23 C 1.53036 * 109.46195 * 59.92935 * 9 8 6 24 24 C 1.52995 * 109.47174 * 269.99915 * 4 3 2 25 25 H 1.08998 * 110.75478 * 299.30597 * 24 4 3 26 26 C 1.55305 * 110.84774 * 62.77292 * 24 4 3 27 27 C 1.55206 * 100.82735 * 152.17858 * 26 24 4 28 28 O 1.43650 * 105.26124 * 323.81692 * 27 26 24 29 29 C 1.43239 * 109.96804 * 24.28594 * 28 27 26 30 30 H 1.08998 * 109.47531 * 299.99394 * 1 2 3 31 31 H 1.08998 * 109.47587 * 60.00281 * 1 2 3 32 32 H 1.09004 * 109.47274 * 179.97438 * 1 2 3 33 33 H 1.09004 * 109.46856 * 240.00609 * 2 1 3 34 34 H 1.08998 * 109.47031 * 120.00484 * 2 1 3 35 35 H 0.96996 * 119.99332 * 359.97438 * 8 6 4 36 36 H 1.08993 * 109.47268 * 300.03322 * 10 9 8 37 37 H 1.08997 * 109.46729 * 60.03703 * 10 9 8 38 38 H 1.09002 * 109.47334 * 180.02562 * 10 9 8 39 39 H 1.09004 * 109.49609 * 181.39446 * 11 9 8 40 40 H 1.09000 * 109.49498 * 61.29279 * 11 9 8 41 41 H 1.09005 * 109.58718 * 65.15681 * 12 11 9 42 42 H 1.09001 * 109.58894 * 185.43430 * 12 11 9 43 43 H 0.97008 * 119.99917 * 179.97438 * 17 16 14 44 44 H 1.09001 * 109.53557 * 186.67857 * 22 13 12 45 45 H 1.09002 * 109.67524 * 66.37760 * 22 13 12 46 46 H 1.09007 * 109.49849 * 178.60776 * 23 9 8 47 47 H 1.09005 * 109.50017 * 298.70517 * 23 9 8 48 48 H 1.09000 * 111.13128 * 270.24378 * 26 24 4 49 49 H 1.09008 * 111.12191 * 34.41003 * 26 24 4 50 50 H 1.09005 * 110.37180 * 204.80161 * 27 26 24 51 51 H 1.08996 * 110.21217 * 82.75553 * 27 26 24 52 52 H 1.08999 * 109.83030 * 238.77262 * 29 28 27 53 53 H 1.09007 * 109.82993 * 117.80045 * 29 28 27 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 8 2.0063 1.3473 0.0000 4 6 3.4308 1.4601 -0.0006 5 1 3.8630 0.6017 -0.5147 6 6 3.8341 2.7266 -0.7109 7 8 2.9854 3.5050 -1.0914 8 7 5.1378 2.9942 -0.9235 9 6 5.5298 4.2255 -1.6135 10 6 4.9163 4.2415 -3.0150 11 6 7.0552 4.2849 -1.7234 12 6 7.6666 4.2341 -0.3198 13 7 7.0807 5.3083 0.4937 14 6 7.8829 6.2076 1.1440 15 1 8.8640 6.4364 0.7547 16 6 7.4351 6.8251 2.3038 17 7 6.4155 6.3210 2.9662 18 14 8.2796 8.3714 2.9245 19 1 8.1853 9.4350 1.8925 20 1 7.6160 8.8316 4.1707 21 1 9.7081 8.0774 3.2032 22 6 5.6146 5.3976 0.5907 23 6 5.0267 5.4354 -0.8228 24 6 3.9398 1.5002 1.4417 25 1 3.5293 2.3592 1.9724 26 6 3.6016 0.1787 2.1841 27 6 4.7501 0.1279 3.2268 28 8 5.8994 0.6610 2.5497 29 6 5.4831 1.5171 1.4794 30 1 -0.3634 0.5137 0.8900 31 1 -0.3634 0.5138 -0.8900 32 1 -0.3634 -1.0277 -0.0005 33 1 1.8933 -0.5138 -0.8901 34 1 1.8933 -0.5139 0.8899 35 1 5.8165 2.3718 -0.6189 36 1 5.2737 3.3793 -3.5779 37 1 3.8300 4.1995 -2.9365 38 1 5.2082 5.1574 -3.5290 39 1 7.3487 5.2126 -2.2147 40 1 7.4112 3.4354 -2.3063 41 1 7.4498 3.2691 0.1385 42 1 8.7457 4.3729 -0.3859 43 1 6.1028 6.7523 3.7769 44 1 5.3394 6.3067 1.1255 45 1 5.2285 4.5290 1.1241 46 1 5.3393 6.3523 -1.3227 47 1 3.9386 5.4051 -0.7646 48 1 2.6278 0.2392 2.6701 49 1 3.6487 -0.6749 1.5078 50 1 4.9365 -0.9006 3.5361 51 1 4.5012 0.7431 4.0914 52 1 5.8801 1.1471 0.5341 53 1 5.8375 2.5323 1.6587 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 ZINC001270243681.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 06:11:26 Heat of formation + Delta-G solvation = -99.535935 kcal Electronic energy + Delta-G solvation = -33380.783488 eV Core-core repulsion = 29253.505027 eV Total energy + Delta-G solvation = -4127.278461 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.93 seconds Orbital eigenvalues (eV) -40.71595 -39.23362 -38.05423 -36.92559 -34.37958 -33.34438 -31.82882 -31.34695 -30.89167 -29.89044 -29.27035 -27.41699 -26.38524 -24.08520 -23.26580 -22.51195 -22.26270 -21.50460 -20.83709 -20.34416 -18.73699 -17.41892 -17.18108 -16.66254 -16.52752 -16.05817 -15.16298 -14.90612 -14.86687 -14.78229 -14.38719 -14.21322 -13.81802 -13.60424 -13.39469 -13.31751 -13.23457 -12.95072 -12.81366 -12.53683 -12.33282 -12.22268 -11.85967 -11.74595 -11.53749 -11.45263 -11.38558 -11.32258 -11.10715 -11.01179 -10.95018 -10.90539 -10.69070 -10.37377 -10.23901 -9.94120 -9.83632 -9.59697 -9.56324 -9.41789 -8.94741 -8.59158 -8.42308 -6.64337 -5.75563 -3.17399 2.82368 3.00793 3.40623 3.46820 3.47712 3.75606 3.96182 4.36985 4.50555 4.52298 4.74470 4.75420 4.90837 4.97003 5.07176 5.08649 5.11478 5.22699 5.29749 5.37625 5.43069 5.45859 5.47552 5.53780 5.60040 5.61702 5.69718 5.72341 5.73800 5.94492 5.95774 6.01747 6.03058 6.11646 6.13460 6.21570 6.37439 6.46107 6.53249 6.67723 6.74919 6.80385 6.91696 6.99260 7.02198 7.10171 7.42663 7.72237 7.82067 7.86717 8.47274 8.54803 9.23805 9.87418 10.44108 11.32549 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.011953 B = 0.004198 C = 0.003612 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2341.891899 B = 6668.382557 C = 7749.043882 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.150 4.150 2 C 0.045 3.955 3 O -0.349 6.349 4 C 0.087 3.913 5 H 0.082 0.918 6 C 0.517 3.483 7 O -0.514 6.514 8 N -0.711 5.711 9 C 0.185 3.815 10 C -0.161 4.161 11 C -0.138 4.138 12 C 0.144 3.856 13 N -0.589 5.589 14 C -0.254 4.254 15 H 0.064 0.936 16 C 0.005 3.995 17 N -0.899 5.899 18 Si 0.900 3.100 19 H -0.285 1.285 20 H -0.291 1.291 21 H -0.283 1.283 22 C 0.177 3.823 23 C -0.152 4.152 24 C -0.140 4.140 25 H 0.104 0.896 26 C -0.150 4.150 27 C 0.051 3.949 28 O -0.376 6.376 29 C 0.054 3.946 30 H 0.064 0.936 31 H 0.064 0.936 32 H 0.069 0.931 33 H 0.047 0.953 34 H 0.057 0.943 35 H 0.395 0.605 36 H 0.046 0.954 37 H 0.073 0.927 38 H 0.059 0.941 39 H 0.076 0.924 40 H 0.055 0.945 41 H 0.013 0.987 42 H 0.056 0.944 43 H 0.253 0.747 44 H 0.084 0.916 45 H 0.016 0.984 46 H 0.060 0.940 47 H 0.071 0.929 48 H 0.088 0.912 49 H 0.077 0.923 50 H 0.083 0.917 51 H 0.063 0.937 52 H 0.061 0.939 53 H 0.096 0.904 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -7.007 -15.699 -6.426 18.353 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 -0.207 4.207 2 C -0.032 4.032 3 O -0.267 6.267 4 C 0.025 3.975 5 H 0.100 0.900 6 C 0.301 3.699 7 O -0.389 6.389 8 N -0.367 5.367 9 C 0.100 3.900 10 C -0.219 4.219 11 C -0.178 4.178 12 C 0.018 3.982 13 N -0.312 5.312 14 C -0.384 4.384 15 H 0.082 0.918 16 C -0.194 4.194 17 N -0.544 5.544 18 Si 0.730 3.270 19 H -0.211 1.211 20 H -0.217 1.217 21 H -0.210 1.210 22 C 0.052 3.948 23 C -0.192 4.192 24 C -0.159 4.159 25 H 0.123 0.877 26 C -0.188 4.188 27 C -0.026 4.026 28 O -0.295 6.295 29 C -0.023 4.023 30 H 0.083 0.917 31 H 0.083 0.917 32 H 0.088 0.912 33 H 0.065 0.935 34 H 0.075 0.925 35 H 0.233 0.767 36 H 0.065 0.935 37 H 0.092 0.908 38 H 0.078 0.922 39 H 0.094 0.906 40 H 0.073 0.927 41 H 0.031 0.969 42 H 0.074 0.926 43 H 0.063 0.937 44 H 0.102 0.898 45 H 0.035 0.965 46 H 0.078 0.922 47 H 0.090 0.910 48 H 0.106 0.894 49 H 0.096 0.904 50 H 0.102 0.898 51 H 0.081 0.919 52 H 0.079 0.921 53 H 0.114 0.886 Dipole moment (debyes) X Y Z Total from point charges -7.602 -14.939 -6.478 17.971 hybrid contribution 0.664 0.304 0.482 0.875 sum -6.939 -14.635 -5.996 17.271 Atomic orbital electron populations 1.21716 0.93511 1.02006 1.03465 1.22799 0.95968 0.84053 1.00382 1.88074 1.17994 1.25885 1.94755 1.21853 0.83734 0.97193 0.94672 0.90017 1.20064 0.83064 0.87162 0.79642 1.90646 1.50312 1.48117 1.49812 1.46331 1.06506 1.24059 1.59822 1.20297 0.94427 0.84201 0.91112 1.22230 1.02908 1.01032 0.95705 1.22352 0.93357 1.01754 1.00321 1.20879 0.96595 0.91540 0.89228 1.44089 1.01483 1.30123 1.55487 1.19111 0.99613 1.16452 1.03221 0.91806 1.24994 0.98737 1.00048 0.95583 1.70017 1.28407 1.39031 1.16896 0.86405 0.78931 0.83784 0.77843 1.21111 1.21703 1.20962 1.20736 0.82345 1.01215 0.90519 1.22581 1.01127 0.95588 0.99896 1.23224 0.96597 1.00237 0.95869 0.87744 1.23474 1.00092 0.96825 0.98387 1.23415 0.84911 0.99062 0.95163 1.88444 1.29824 1.64487 1.46763 1.23403 0.92131 0.96620 0.90133 0.91693 0.91731 0.91197 0.93514 0.92457 0.76721 0.93524 0.90802 0.92178 0.90566 0.92651 0.96907 0.92595 0.93656 0.89753 0.96550 0.92150 0.91030 0.89371 0.90447 0.89833 0.91853 0.92069 0.88552 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 16. 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 -1.29 10.28 37.16 0.38 -0.91 16 2 C 0.04 0.44 6.20 37.16 0.23 0.67 16 3 O -0.35 -4.89 9.48 -55.09 -0.52 -5.41 16 4 C 0.09 1.16 2.19 -27.89 -0.06 1.10 16 5 H 0.08 0.88 7.76 -51.93 -0.40 0.47 16 6 C 0.52 8.48 6.56 -10.98 -0.07 8.41 16 7 O -0.51 -10.21 12.73 -14.31 -0.18 -10.39 16 8 N -0.71 -11.01 3.64 -47.57 -0.17 -11.18 16 9 C 0.18 3.09 0.66 -131.78 -0.09 3.01 16 10 C -0.16 -2.44 8.40 37.16 0.31 -2.12 16 11 C -0.14 -2.24 4.96 -26.61 -0.13 -2.37 16 12 C 0.14 2.82 6.23 -3.71 -0.02 2.79 16 13 N -0.59 -14.18 3.01 -172.13 -0.52 -14.70 16 14 C -0.25 -6.86 9.59 -15.06 -0.14 -7.01 16 15 H 0.06 1.69 7.89 -52.49 -0.41 1.28 16 16 C 0.01 0.15 4.92 -17.43 -0.09 0.06 16 17 N -0.90 -25.96 11.18 55.49 0.62 -25.34 16 18 Si 0.90 21.77 29.59 -169.99 -5.03 16.74 16 19 H -0.28 -6.84 7.11 56.52 0.40 -6.44 16 20 H -0.29 -7.12 7.11 56.52 0.40 -6.72 16 21 H -0.28 -6.76 7.11 56.52 0.40 -6.36 16 22 C 0.18 4.22 5.07 -3.59 -0.02 4.20 16 23 C -0.15 -3.08 4.66 -26.64 -0.12 -3.21 16 24 C -0.14 -1.87 2.75 -88.68 -0.24 -2.11 16 25 H 0.10 1.65 8.14 -51.93 -0.42 1.23 16 26 C -0.15 -1.54 4.81 -24.34 -0.12 -1.66 16 27 C 0.05 0.59 7.78 38.33 0.30 0.89 16 28 O -0.38 -5.78 11.36 -35.23 -0.40 -6.18 16 29 C 0.05 0.79 5.76 37.88 0.22 1.01 16 30 H 0.06 0.59 8.14 -51.93 -0.42 0.16 16 31 H 0.06 0.61 8.14 -51.93 -0.42 0.18 16 32 H 0.07 0.44 8.14 -51.93 -0.42 0.01 16 33 H 0.05 0.41 8.08 -51.93 -0.42 -0.01 16 34 H 0.06 0.47 4.89 -51.93 -0.25 0.22 16 35 H 0.40 5.53 4.18 -40.82 -0.17 5.36 16 36 H 0.05 0.62 8.14 -51.93 -0.42 0.20 16 37 H 0.07 1.25 6.17 -51.93 -0.32 0.93 16 38 H 0.06 0.86 8.14 -51.93 -0.42 0.43 16 39 H 0.08 1.28 8.14 -51.93 -0.42 0.85 16 40 H 0.05 0.75 8.14 -51.93 -0.42 0.32 16 41 H 0.01 0.25 6.69 -51.93 -0.35 -0.10 16 42 H 0.06 1.08 7.93 -51.93 -0.41 0.67 16 43 H 0.25 7.17 8.31 -40.82 -0.34 6.83 16 44 H 0.08 2.32 6.04 -51.93 -0.31 2.01 16 45 H 0.02 0.41 6.82 -51.93 -0.35 0.05 16 46 H 0.06 1.24 8.14 -51.93 -0.42 0.82 16 47 H 0.07 1.53 6.20 -51.93 -0.32 1.21 16 48 H 0.09 0.81 7.79 -51.93 -0.40 0.41 16 49 H 0.08 0.66 7.01 -51.92 -0.36 0.30 16 50 H 0.08 0.78 8.14 -51.93 -0.42 0.36 16 51 H 0.06 0.76 8.14 -51.93 -0.42 0.33 16 52 H 0.06 0.77 6.00 -51.93 -0.31 0.46 16 53 H 0.10 1.78 6.97 -51.92 -0.36 1.42 16 LS Contribution 391.41 15.07 5.90 5.90 Total: -1.00 -31.99 391.41 -8.93 -40.92 By element: Atomic # 1 Polarization: 15.86 SS G_CDS: -8.96 Total: 6.90 kcal Atomic # 6 Polarization: 2.41 SS G_CDS: 0.33 Total: 2.75 kcal Atomic # 7 Polarization: -51.15 SS G_CDS: -0.07 Total: -51.22 kcal Atomic # 8 Polarization: -20.88 SS G_CDS: -1.10 Total: -21.98 kcal Atomic # 14 Polarization: 21.77 SS G_CDS: -5.03 Total: 16.74 kcal Total LS contribution 5.90 Total: 5.90 kcal Total: -31.99 -8.93 -40.92 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. ZINC001270243681.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 -58.617 kcal (2) G-P(sol) polarization free energy of solvation -31.987 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -90.605 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.931 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -40.919 kcal (6) G-S(sol) free energy of system = (1) + (5) -99.536 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.93 seconds