Wall clock time and date at job start Sat Apr 11 2020 06:09:58 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 1.31628 * 1 3 3 Si 1.86802 * 119.99918 * 2 1 4 4 H 1.48502 * 109.47076 * 239.99387 * 3 2 1 5 5 H 1.48498 * 109.47425 * 359.97438 * 3 2 1 6 6 H 1.48504 * 109.47297 * 119.99794 * 3 2 1 7 7 C 1.38800 * 120.00090 * 179.97438 * 2 1 3 8 8 H 1.08001 * 120.00075 * 180.02562 * 7 2 1 9 9 S 1.76198 * 119.99760 * 0.02562 * 7 2 1 10 10 C 1.81007 * 99.99805 * 179.97438 * 9 7 2 11 11 C 1.50696 * 109.47037 * 179.97438 * 10 9 7 12 12 O 1.21283 * 120.00224 * 0.02562 * 11 10 9 13 13 N 1.34779 * 120.00201 * 180.02562 * 11 10 9 14 14 C 1.46497 * 120.00335 * 180.02562 * 13 11 10 15 15 H 1.09004 * 109.50091 * 35.07513 * 14 13 11 16 16 C 1.53119 * 109.50466 * 274.99975 * 14 13 11 17 17 C 1.53118 * 109.16458 * 182.40228 * 16 14 13 18 18 C 1.53038 * 109.27552 * 57.65296 * 17 16 14 19 19 N 1.46847 * 109.52465 * 300.82130 * 18 17 16 20 20 C 1.46896 * 111.00149 * 185.83722 * 19 18 17 21 21 C 1.53002 * 109.46989 * 66.04636 * 20 19 18 22 22 C 1.52996 * 109.47464 * 179.97438 * 21 20 19 23 23 C 1.53002 * 109.47464 * 179.97438 * 22 21 20 24 24 C 1.53781 * 113.61609 * 174.99951 * 23 22 21 25 25 C 1.53781 * 87.08070 * 139.98229 * 24 23 22 26 26 C 1.53786 * 87.17350 * 334.52830 * 25 24 23 27 27 C 1.46853 * 111.19585 * 61.74250 * 19 18 17 28 28 H 0.96998 * 120.00212 * 0.02562 * 1 2 3 29 29 H 1.08997 * 109.47197 * 59.99988 * 10 9 7 30 30 H 1.08998 * 109.47005 * 299.99992 * 10 9 7 31 31 H 0.96998 * 119.99645 * 0.02562 * 13 11 10 32 32 H 1.09002 * 109.52240 * 62.49393 * 16 14 13 33 33 H 1.09001 * 109.52381 * 302.31325 * 16 14 13 34 34 H 1.08997 * 109.50317 * 297.71360 * 17 16 14 35 35 H 1.08999 * 109.50304 * 177.59416 * 17 16 14 36 36 H 1.08998 * 109.46203 * 180.80434 * 18 17 16 37 37 H 1.09002 * 109.45346 * 60.82970 * 18 17 16 38 38 H 1.09005 * 109.47352 * 306.05232 * 20 19 18 39 39 H 1.08995 * 109.47149 * 186.04345 * 20 19 18 40 40 H 1.09008 * 109.47314 * 60.00150 * 21 20 19 41 41 H 1.08997 * 109.47357 * 300.00165 * 21 20 19 42 42 H 1.08997 * 109.47139 * 59.99852 * 22 21 20 43 43 H 1.09006 * 109.47243 * 300.00357 * 22 21 20 44 44 H 1.09003 * 112.90345 * 43.75005 * 23 22 21 45 45 H 1.08999 * 113.61181 * 25.43284 * 24 23 22 46 46 H 1.09000 * 113.69133 * 254.54111 * 24 23 22 47 47 H 1.09002 * 113.61445 * 89.11830 * 25 24 23 48 48 H 1.09002 * 113.61408 * 219.93560 * 25 24 23 49 49 H 1.08992 * 113.61675 * 140.02412 * 26 25 24 50 50 H 1.09000 * 113.60973 * 270.92699 * 26 25 24 51 51 H 1.08994 * 109.46112 * 58.27363 * 27 19 18 52 52 H 1.09006 * 109.45794 * 178.23918 * 27 19 18 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 1.3163 0.0000 0.0000 3 14 2.2503 1.6178 0.0000 4 1 3.1041 1.6964 -1.2124 5 1 1.2853 2.7465 -0.0006 6 1 3.1040 1.6965 1.2125 7 6 2.0103 -1.2020 0.0005 8 1 3.0903 -1.2020 0.0010 9 16 1.1293 -2.7279 0.0005 10 6 2.5159 -3.8914 0.0005 11 6 1.9874 -5.3027 0.0012 12 8 0.7911 -5.5023 0.0011 13 7 2.8441 -6.3431 0.0018 14 6 2.3304 -7.7151 0.0019 15 1 1.4156 -7.7611 -0.5890 16 6 2.0327 -8.1494 1.4396 17 6 1.5534 -9.6037 1.4364 18 6 2.6234 -10.4867 0.7903 19 7 2.8717 -10.0313 -0.5835 20 6 3.7917 -10.9395 -1.2811 21 6 3.1211 -12.3024 -1.4650 22 6 4.0789 -13.2482 -2.1921 23 6 3.4085 -14.6112 -2.3755 24 6 4.2427 -15.6014 -3.2054 25 6 3.7937 -16.6884 -2.2146 26 6 3.6100 -15.5638 -1.1818 27 6 3.3778 -8.6528 -0.6026 28 1 -0.4850 0.8400 -0.0004 29 1 3.1245 -3.7313 0.8905 30 1 3.1245 -3.7313 -0.8894 31 1 3.8009 -6.1835 0.0022 32 1 1.2556 -7.5107 1.8596 33 1 2.9383 -8.0656 2.0404 34 1 0.6266 -9.6801 0.8679 35 1 1.3806 -9.9322 2.4612 36 1 2.2792 -11.5208 0.7735 37 1 3.5458 -10.4203 1.3672 38 1 4.7010 -11.0587 -0.6919 39 1 4.0427 -10.5235 -2.2567 40 1 2.2117 -12.1833 -2.0542 41 1 2.8699 -12.7184 -0.4894 42 1 4.9884 -13.3674 -1.6034 43 1 4.3297 -12.8319 -3.1679 44 1 2.3714 -14.5334 -2.7018 45 1 5.3136 -15.4006 -3.1775 46 1 3.8662 -15.7506 -4.2174 47 1 2.8619 -17.1785 -2.4968 48 1 4.5820 -17.3951 -1.9551 49 1 2.7221 -15.6820 -0.5609 50 1 4.5084 -15.3528 -0.6017 51 1 4.2967 -8.5953 -0.0192 52 1 3.5816 -8.3551 -1.6312 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 ZINC001713780358.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 06:09:58 Heat of formation + Delta-G solvation = -39.890590 kcal Electronic energy + Delta-G solvation = -26510.932418 eV Core-core repulsion = 22828.993245 eV Total energy + Delta-G solvation = -3681.939173 eV No. of doubly occupied orbitals = 63 Molecular weight (most abundant/longest-lived isotopes) = 340.193 amu Computer time = 0.69 seconds Orbital eigenvalues (eV) -39.99321 -39.37060 -38.44695 -35.42798 -33.64784 -32.41546 -32.17870 -30.46597 -28.37831 -27.54975 -26.04268 -25.47001 -24.57633 -23.11279 -22.55860 -21.14713 -20.25425 -20.02905 -19.72337 -17.81773 -16.67439 -16.33499 -16.12615 -15.68881 -15.44870 -15.16154 -14.99019 -14.79249 -14.77392 -14.22218 -14.03987 -13.84103 -13.69147 -13.16868 -13.09284 -12.89741 -12.88167 -12.61589 -12.47224 -12.39732 -12.00485 -11.66602 -11.64037 -11.48277 -11.20904 -11.03283 -11.03115 -10.97720 -10.86161 -10.82824 -10.75749 -10.67736 -10.49822 -10.32041 -9.80727 -9.34438 -9.04991 -8.85011 -8.60295 -8.22111 -6.48233 -6.20136 -3.90631 2.97651 3.12756 3.24301 3.26677 3.29940 3.52536 3.89475 4.15197 4.21905 4.22747 4.28773 4.42533 4.57503 4.61823 4.70432 4.77949 4.87807 4.94789 5.02708 5.11794 5.14867 5.17478 5.19293 5.21139 5.29101 5.30326 5.34598 5.38572 5.41572 5.46663 5.47629 5.51303 5.56437 5.59333 5.67600 5.67943 5.77410 5.83116 5.91440 5.94850 5.95564 5.97863 6.11870 6.15629 6.19056 6.26427 6.61313 6.80444 6.86169 7.60453 7.74891 8.36280 8.65674 9.24962 10.87234 Molecular weight = 340.19amu Principal moments of inertia in cm(-1) A = 0.033936 B = 0.001507 C = 0.001479 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 824.889818 B =18580.623326 C =18933.073492 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 N -0.868 5.868 2 C 0.074 3.926 3 Si 0.918 3.082 4 H -0.274 1.274 5 H -0.283 1.283 6 H -0.274 1.274 7 C -0.537 4.537 8 H 0.072 0.928 9 S -0.059 6.059 10 C -0.154 4.154 11 C 0.534 3.466 12 O -0.515 6.515 13 N -0.736 5.736 14 C 0.151 3.849 15 H 0.096 0.904 16 C -0.133 4.133 17 C -0.114 4.114 18 C 0.053 3.947 19 N -0.534 5.534 20 C 0.057 3.943 21 C -0.115 4.115 22 C -0.108 4.108 23 C -0.109 4.109 24 C -0.139 4.139 25 C -0.145 4.145 26 C -0.138 4.138 27 C 0.052 3.948 28 H 0.269 0.731 29 H 0.089 0.911 30 H 0.089 0.911 31 H 0.396 0.604 32 H 0.074 0.926 33 H 0.058 0.942 34 H 0.074 0.926 35 H 0.069 0.931 36 H 0.078 0.922 37 H 0.032 0.968 38 H 0.032 0.968 39 H 0.074 0.926 40 H 0.071 0.929 41 H 0.063 0.937 42 H 0.060 0.940 43 H 0.064 0.936 44 H 0.090 0.910 45 H 0.079 0.921 46 H 0.065 0.935 47 H 0.078 0.922 48 H 0.064 0.936 49 H 0.065 0.935 50 H 0.079 0.921 51 H 0.036 0.964 52 H 0.080 0.920 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 11.454 -31.310 -1.937 33.396 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 -0.503 5.503 2 C -0.135 4.135 3 Si 0.744 3.256 4 H -0.200 1.200 5 H -0.208 1.208 6 H -0.200 1.200 7 C -0.685 4.685 8 H 0.090 0.910 9 S 0.168 5.832 10 C -0.304 4.304 11 C 0.320 3.680 12 O -0.389 6.389 13 N -0.390 5.390 14 C 0.046 3.954 15 H 0.115 0.885 16 C -0.171 4.171 17 C -0.153 4.153 18 C -0.075 4.075 19 N -0.259 5.259 20 C -0.071 4.071 21 C -0.153 4.153 22 C -0.146 4.146 23 C -0.128 4.128 24 C -0.177 4.177 25 C -0.182 4.182 26 C -0.176 4.176 27 C -0.076 4.076 28 H 0.079 0.921 29 H 0.107 0.893 30 H 0.107 0.893 31 H 0.229 0.771 32 H 0.093 0.907 33 H 0.077 0.923 34 H 0.093 0.907 35 H 0.087 0.913 36 H 0.096 0.904 37 H 0.050 0.950 38 H 0.050 0.950 39 H 0.093 0.907 40 H 0.090 0.910 41 H 0.081 0.919 42 H 0.079 0.921 43 H 0.082 0.918 44 H 0.108 0.892 45 H 0.098 0.902 46 H 0.084 0.916 47 H 0.097 0.903 48 H 0.083 0.917 49 H 0.084 0.916 50 H 0.097 0.903 51 H 0.054 0.946 52 H 0.099 0.901 Dipole moment (debyes) X Y Z Total from point charges 8.826 -31.526 -2.192 32.811 hybrid contribution 3.303 1.399 0.469 3.618 sum 12.130 -30.127 -1.723 32.523 Atomic orbital electron populations 1.70006 1.05947 1.27552 1.46782 1.24981 0.95011 0.98981 0.94532 0.86235 0.79247 0.81291 0.78783 1.19953 1.20799 1.19958 1.22834 0.94874 0.91730 1.59061 0.91012 1.85397 1.04902 0.96237 1.96714 1.23536 1.06563 0.95464 1.04861 1.20282 0.86557 0.86185 0.74970 1.90703 1.15312 1.85519 1.47337 1.46014 1.09801 1.05307 1.77844 1.20805 0.97910 0.80284 0.96439 0.88548 1.22001 1.01777 0.96502 0.96861 1.21546 0.99026 0.94246 1.00455 1.22195 0.97984 0.99427 0.87903 1.61796 1.46370 1.01351 1.16374 1.22125 0.93271 0.93059 0.98647 1.21595 0.99166 0.93446 1.01043 1.21536 0.98226 0.94325 1.00555 1.22603 0.99843 0.93427 0.96891 1.22948 1.00126 0.96432 0.98182 1.22813 1.01461 0.96539 0.97405 1.23027 1.01857 0.96340 0.96333 1.22260 0.95678 0.88388 1.01290 0.92133 0.89305 0.89261 0.77089 0.90725 0.92296 0.90690 0.91259 0.90351 0.95025 0.95021 0.90724 0.90979 0.91856 0.92110 0.91778 0.89199 0.90242 0.91638 0.90319 0.91701 0.91634 0.90265 0.94564 0.90130 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 N -0.87 -26.28 13.22 55.49 0.73 -25.54 16 2 C 0.07 2.13 5.49 -17.43 -0.10 2.03 16 3 Si 0.92 21.46 29.55 -169.99 -5.02 16.44 16 4 H -0.27 -6.25 7.11 56.52 0.40 -5.85 16 5 H -0.28 -6.49 7.11 56.52 0.40 -6.09 16 6 H -0.27 -6.25 7.11 56.52 0.40 -5.85 16 7 C -0.54 -15.37 9.50 30.94 0.29 -15.07 16 8 H 0.07 1.94 7.80 -52.49 -0.41 1.53 16 9 S -0.06 -1.61 20.57 -107.50 -2.21 -3.83 16 10 C -0.15 -3.11 6.16 36.00 0.22 -2.89 16 11 C 0.53 10.02 7.81 -10.99 -0.09 9.94 16 12 O -0.51 -11.76 15.53 5.56 0.09 -11.68 16 13 N -0.74 -9.98 5.08 -53.73 -0.27 -10.25 16 14 C 0.15 1.88 2.62 -67.86 -0.18 1.70 16 15 H 0.10 1.47 7.58 -51.93 -0.39 1.08 16 16 C -0.13 -1.56 5.58 -26.61 -0.15 -1.71 16 17 C -0.11 -1.11 6.09 -26.65 -0.16 -1.27 16 18 C 0.05 0.45 5.29 -3.83 -0.02 0.43 16 19 N -0.53 -4.91 4.66 -234.67 -1.09 -6.00 16 20 C 0.06 0.42 4.96 -3.83 -0.02 0.40 16 21 C -0.11 -0.75 5.14 -26.73 -0.14 -0.88 16 22 C -0.11 -0.60 5.05 -26.73 -0.14 -0.74 16 23 C -0.11 -0.60 3.66 -89.67 -0.33 -0.93 16 24 C -0.14 -0.72 7.64 -25.92 -0.20 -0.92 16 25 C -0.14 -0.73 8.07 -25.92 -0.21 -0.94 16 26 C -0.14 -0.73 7.65 -25.77 -0.20 -0.93 16 27 C 0.05 0.51 4.93 -3.83 -0.02 0.49 16 28 H 0.27 7.58 8.31 -40.82 -0.34 7.24 16 29 H 0.09 1.66 8.14 -51.92 -0.42 1.24 16 30 H 0.09 1.67 8.14 -51.92 -0.42 1.25 16 31 H 0.40 4.18 8.60 -40.82 -0.35 3.83 16 32 H 0.07 1.07 8.14 -51.93 -0.42 0.65 16 33 H 0.06 0.64 8.14 -51.93 -0.42 0.22 16 34 H 0.07 0.80 8.14 -51.93 -0.42 0.38 16 35 H 0.07 0.58 8.14 -51.93 -0.42 0.16 16 36 H 0.08 0.59 6.22 -51.93 -0.32 0.27 16 37 H 0.03 0.26 8.14 -51.93 -0.42 -0.16 16 38 H 0.03 0.23 8.12 -51.93 -0.42 -0.19 16 39 H 0.07 0.55 7.98 -51.93 -0.41 0.14 16 40 H 0.07 0.54 8.14 -51.92 -0.42 0.12 16 41 H 0.06 0.42 6.44 -51.93 -0.33 0.08 16 42 H 0.06 0.33 7.85 -51.93 -0.41 -0.07 16 43 H 0.06 0.36 8.14 -51.93 -0.42 -0.06 16 44 H 0.09 0.53 8.13 -51.93 -0.42 0.10 16 45 H 0.08 0.40 8.10 -51.93 -0.42 -0.02 16 46 H 0.06 0.33 8.14 -51.93 -0.42 -0.09 16 47 H 0.08 0.38 8.14 -51.93 -0.42 -0.05 16 48 H 0.06 0.31 8.14 -51.93 -0.42 -0.12 16 49 H 0.06 0.35 8.14 -51.93 -0.42 -0.07 16 50 H 0.08 0.41 7.90 -51.93 -0.41 0.00 16 51 H 0.04 0.32 8.14 -51.93 -0.42 -0.10 16 52 H 0.08 0.77 8.01 -51.93 -0.42 0.36 16 LS Contribution 420.62 15.07 6.34 6.34 Total: -1.00 -33.26 420.62 -12.64 -45.90 By element: Atomic # 1 Polarization: 9.69 SS G_CDS: -9.78 Total: -0.09 kcal Atomic # 6 Polarization: -9.88 SS G_CDS: -1.42 Total: -11.29 kcal Atomic # 7 Polarization: -41.16 SS G_CDS: -0.63 Total: -41.79 kcal Atomic # 8 Polarization: -11.76 SS G_CDS: 0.09 Total: -11.68 kcal Atomic # 14 Polarization: 21.46 SS G_CDS: -5.02 Total: 16.44 kcal Atomic # 16 Polarization: -1.61 SS G_CDS: -2.21 Total: -3.83 kcal Total LS contribution 6.34 Total: 6.34 kcal Total: -33.26 -12.64 -45.90 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. ZINC001713780358.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 6.011 kcal (2) G-P(sol) polarization free energy of solvation -33.264 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -27.253 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -12.638 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -45.901 kcal (6) G-S(sol) free energy of system = (1) + (5) -39.891 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.69 seconds