Wall clock time and date at job start Sat Apr 11 2020 06:11:34 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 1.53001 * 1 3 3 O 1.42905 * 109.47516 * 2 1 4 4 C 1.42892 * 114.00151 * 184.82650 * 3 2 1 5 5 H 1.09004 * 109.47568 * 32.09658 * 4 3 2 6 6 C 1.50702 * 109.47200 * 272.09768 * 4 3 2 7 7 O 1.21279 * 119.99801 * 359.97438 * 6 4 3 8 8 N 1.34783 * 119.99909 * 180.02562 * 6 4 3 9 9 C 1.46502 * 119.99449 * 179.97438 * 8 6 4 10 10 C 1.53002 * 109.46739 * 175.13568 * 9 8 6 11 11 N 1.46502 * 110.01847 * 54.47200 * 10 9 8 12 12 C 1.36941 * 119.99851 * 63.93582 * 11 10 9 13 13 H 1.07991 * 119.99862 * 354.81647 * 12 11 10 14 14 C 1.38811 * 119.99841 * 174.80851 * 12 11 10 15 15 N 1.31624 * 119.99853 * 0.02562 * 14 12 11 16 16 Si 1.86796 * 119.99969 * 180.02562 * 14 12 11 17 17 H 1.48495 * 109.47310 * 90.00123 * 16 14 12 18 18 H 1.48507 * 109.47078 * 210.00097 * 16 14 12 19 19 H 1.48498 * 109.46958 * 329.99906 * 16 14 12 20 20 C 1.54266 * 110.03444 * 293.08409 * 10 9 8 21 21 C 1.54968 * 104.15930 * 217.13883 * 20 10 9 22 22 C 1.54891 * 102.77648 * 37.88184 * 21 20 10 23 23 C 1.53869 * 110.03373 * 175.86102 * 10 9 8 24 24 C 1.53005 * 109.47337 * 152.09688 * 4 3 2 25 25 H 1.08992 * 110.75313 * 178.03827 * 24 4 3 26 26 C 1.55312 * 110.84353 * 301.73060 * 24 4 3 27 27 C 1.54941 * 100.93879 * 152.32080 * 26 24 4 28 28 O 1.43644 * 105.13854 * 323.55338 * 27 26 24 29 29 C 1.43235 * 109.97016 * 24.42757 * 28 27 26 30 30 H 1.08999 * 109.46505 * 299.99877 * 1 2 3 31 31 H 1.08995 * 109.46950 * 59.99574 * 1 2 3 32 32 H 1.08995 * 109.47048 * 180.02562 * 1 2 3 33 33 H 1.09000 * 109.47295 * 239.99644 * 2 1 3 34 34 H 1.09003 * 109.47470 * 120.00037 * 2 1 3 35 35 H 0.96996 * 119.99967 * 359.71729 * 8 6 4 36 36 H 1.08998 * 109.46918 * 295.13146 * 9 8 6 37 37 H 1.08999 * 109.47371 * 55.14103 * 9 8 6 38 38 H 0.97000 * 119.99997 * 243.94308 * 11 10 9 39 39 H 0.97006 * 119.99708 * 180.02562 * 15 14 12 40 40 H 1.09007 * 110.48291 * 335.78160 * 20 10 9 41 41 H 1.08995 * 110.49065 * 98.42728 * 20 10 9 42 42 H 1.09004 * 110.71617 * 279.56979 * 21 20 10 43 43 H 1.08995 * 110.92197 * 156.29384 * 21 20 10 44 44 H 1.09003 * 110.48025 * 203.40563 * 22 21 20 45 45 H 1.08998 * 110.59817 * 80.82355 * 22 21 20 46 46 H 1.08995 * 110.03458 * 238.57219 * 23 10 9 47 47 H 1.09004 * 110.03322 * 359.95584 * 23 10 9 48 48 H 1.08998 * 111.12574 * 270.23805 * 26 24 4 49 49 H 1.08999 * 111.12568 * 34.40496 * 26 24 4 50 50 H 1.09003 * 110.31097 * 204.63731 * 27 26 24 51 51 H 1.08998 * 110.39411 * 82.51328 * 27 26 24 52 52 H 1.08996 * 109.83335 * 238.77506 * 29 28 27 53 53 H 1.09008 * 109.90336 * 117.84530 * 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 2.0065 1.3473 0.0000 4 6 3.4265 1.4616 -0.1098 5 1 3.8119 0.6385 -0.7117 6 6 4.0425 1.4101 1.2646 7 8 3.3349 1.2881 2.2420 8 7 5.3796 1.5008 1.4077 9 6 5.9782 1.4513 2.7439 10 6 7.5032 1.4520 2.6198 11 7 7.9409 2.6006 1.8227 12 6 7.7213 3.8734 2.2776 13 1 7.1523 4.0330 3.1815 14 6 8.2301 4.9583 1.5770 15 7 8.9233 4.7637 0.4751 16 14 7.9311 6.6945 2.1979 17 1 9.0303 7.0883 3.1155 18 1 7.8880 7.6314 1.0465 19 1 6.6374 6.7441 2.9252 20 6 7.9806 0.1403 1.9631 21 6 9.3003 -0.1955 2.7028 22 6 8.9912 0.2225 4.1618 23 6 8.1457 1.5047 4.0170 24 6 3.7810 2.7916 -0.7781 25 1 4.8620 2.9160 -0.8412 26 6 3.1252 2.8967 -2.1820 27 6 2.9799 4.4327 -2.3243 28 8 2.6576 4.9028 -1.0058 29 6 3.1347 3.9742 -0.0251 30 1 -0.3632 0.5138 0.8900 31 1 -0.3633 0.5139 -0.8899 32 1 -0.3633 -1.0276 0.0005 33 1 1.8934 -0.5139 -0.8899 34 1 1.8934 -0.5138 0.8900 35 1 5.9457 1.5950 0.6258 36 1 5.6599 2.3221 3.3171 37 1 5.6556 0.5432 3.2532 38 1 8.3863 2.4595 0.9726 39 1 9.2792 5.5218 -0.0142 40 1 7.2466 -0.6512 2.1145 41 1 8.1662 0.2916 0.8998 42 1 10.1275 0.3894 2.3004 43 1 9.5188 -1.2617 2.6444 44 1 9.9143 0.4331 4.7019 45 1 8.4213 -0.5548 4.6708 46 1 8.7838 2.3843 4.1016 47 1 7.3711 1.5305 4.7835 48 1 3.7802 2.4910 -2.9530 49 1 2.1516 2.4068 -2.1985 50 1 2.1753 4.6739 -3.0191 51 1 3.9172 4.8731 -2.6643 52 1 2.3024 3.6162 0.5809 53 1 3.8759 4.4560 0.6125 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 ZINC001698799913.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 06:11:34 Heat of formation + Delta-G solvation = -129.988230 kcal Electronic energy + Delta-G solvation = -32420.257313 eV Core-core repulsion = 28291.658342 eV Total energy + Delta-G solvation = -4128.598971 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 0.79 seconds Orbital eigenvalues (eV) -40.30904 -38.93795 -38.24117 -37.17986 -34.17257 -33.46585 -33.01039 -30.95808 -30.69690 -29.47071 -28.34249 -28.01331 -26.30272 -24.15328 -23.21883 -22.90070 -22.40501 -21.09761 -20.43053 -19.66328 -18.69382 -17.46183 -17.02678 -16.92251 -16.39820 -15.92737 -15.64992 -15.16922 -15.04229 -14.64786 -14.50288 -14.34387 -14.07376 -13.89985 -13.49284 -13.22043 -13.12388 -13.05712 -12.80940 -12.59336 -12.38027 -12.00346 -11.87025 -11.65712 -11.56305 -11.41971 -11.23498 -11.03229 -10.84313 -10.75595 -10.72925 -10.69311 -10.62411 -10.52608 -10.39056 -10.29817 -10.09143 -9.87710 -9.68770 -9.26892 -9.04970 -8.92183 -8.49762 -7.06309 -5.84911 -3.14233 2.87516 3.36622 3.40849 3.48280 3.49614 3.75459 4.04193 4.40455 4.54323 4.70194 4.88390 4.94926 5.03659 5.06196 5.11200 5.17091 5.19599 5.25104 5.29492 5.34314 5.42159 5.47454 5.53595 5.62736 5.63298 5.72585 5.75281 5.79904 5.86399 5.92312 5.94139 6.01699 6.04535 6.05698 6.11566 6.17138 6.20657 6.29234 6.32297 6.39115 6.53503 6.58160 6.69028 6.79794 6.93677 7.03123 7.11333 7.18580 7.69160 7.97975 8.33651 8.60867 9.45892 9.98649 10.34463 11.36802 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.008915 B = 0.004690 C = 0.003432 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 3139.919915 B = 5968.662429 C = 8156.968325 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.148 4.148 2 C 0.056 3.944 3 O -0.352 6.352 4 C 0.087 3.913 5 H 0.086 0.914 6 C 0.484 3.516 7 O -0.540 6.540 8 N -0.698 5.698 9 C 0.118 3.882 10 C 0.189 3.811 11 N -0.712 5.712 12 C -0.234 4.234 13 H 0.069 0.931 14 C -0.005 4.005 15 N -0.930 5.930 16 Si 0.898 3.102 17 H -0.290 1.290 18 H -0.292 1.292 19 H -0.281 1.281 20 C -0.122 4.122 21 C -0.119 4.119 22 C -0.120 4.120 23 C -0.129 4.129 24 C -0.115 4.115 25 H 0.109 0.891 26 C -0.147 4.147 27 C 0.052 3.948 28 O -0.383 6.383 29 C 0.060 3.940 30 H 0.065 0.935 31 H 0.061 0.939 32 H 0.068 0.932 33 H 0.045 0.955 34 H 0.053 0.947 35 H 0.402 0.598 36 H 0.062 0.938 37 H 0.054 0.946 38 H 0.383 0.617 39 H 0.255 0.745 40 H 0.062 0.938 41 H 0.065 0.935 42 H 0.069 0.931 43 H 0.055 0.945 44 H 0.057 0.943 45 H 0.055 0.945 46 H 0.083 0.917 47 H 0.051 0.949 48 H 0.082 0.918 49 H 0.086 0.914 50 H 0.081 0.919 51 H 0.061 0.939 52 H 0.080 0.920 53 H 0.074 0.926 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -8.556 -12.034 -4.620 15.471 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 -0.205 4.205 2 C -0.021 4.021 3 O -0.269 6.269 4 C 0.026 3.974 5 H 0.104 0.896 6 C 0.269 3.731 7 O -0.417 6.417 8 N -0.349 5.349 9 C -0.008 4.008 10 C 0.096 3.904 11 N -0.353 5.353 12 C -0.365 4.365 13 H 0.087 0.913 14 C -0.202 4.202 15 N -0.578 5.578 16 Si 0.729 3.271 17 H -0.218 1.218 18 H -0.218 1.218 19 H -0.207 1.207 20 C -0.160 4.160 21 C -0.156 4.156 22 C -0.158 4.158 23 C -0.169 4.169 24 C -0.134 4.134 25 H 0.127 0.873 26 C -0.184 4.184 27 C -0.024 4.024 28 O -0.303 6.303 29 C -0.016 4.016 30 H 0.084 0.916 31 H 0.080 0.920 32 H 0.087 0.913 33 H 0.063 0.937 34 H 0.072 0.928 35 H 0.238 0.762 36 H 0.081 0.919 37 H 0.072 0.928 38 H 0.218 0.782 39 H 0.064 0.936 40 H 0.081 0.919 41 H 0.084 0.916 42 H 0.087 0.913 43 H 0.073 0.927 44 H 0.076 0.924 45 H 0.074 0.926 46 H 0.102 0.898 47 H 0.070 0.930 48 H 0.101 0.899 49 H 0.104 0.896 50 H 0.099 0.901 51 H 0.079 0.921 52 H 0.099 0.901 53 H 0.092 0.908 Dipole moment (debyes) X Y Z Total from point charges -9.336 -11.594 -3.772 15.356 hybrid contribution 0.717 0.673 -0.291 1.026 sum -8.618 -10.921 -4.063 14.493 Atomic orbital electron populations 1.21699 0.93645 1.01997 1.03160 1.22556 0.95723 0.83760 1.00061 1.87973 1.18367 1.26418 1.94191 1.21800 0.83280 0.98878 0.93480 0.89622 1.21133 0.82942 0.77432 0.91634 1.90672 1.61259 1.49561 1.40255 1.45834 1.06118 1.72325 1.10664 1.21970 0.95197 1.00437 0.83216 1.20447 0.90100 0.88032 0.91772 1.42538 1.70153 1.00235 1.22380 1.19074 1.27265 0.82966 1.07212 0.91284 1.24664 1.00161 0.97615 0.97710 1.69646 1.40523 1.29888 1.17748 0.86323 0.77826 0.85158 0.77750 1.21777 1.21797 1.20690 1.22586 0.96941 0.96809 0.99669 1.22418 0.97917 0.99609 0.95686 1.22303 0.99383 0.97639 0.96497 1.22638 0.99054 0.98223 0.97005 1.22873 1.02030 0.93255 0.95263 0.87295 1.23269 1.02091 0.97260 0.95816 1.23313 1.00587 0.92759 0.85756 1.88380 1.80327 1.46738 1.14833 1.23118 0.98984 0.88282 0.91225 0.91615 0.92038 0.91287 0.93656 0.92822 0.76235 0.91929 0.92806 0.78212 0.93553 0.91938 0.91618 0.91256 0.92652 0.92448 0.92630 0.89826 0.93041 0.89931 0.89553 0.90101 0.92070 0.90149 0.90811 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 -1.43 10.28 37.16 0.38 -1.05 16 2 C 0.06 0.64 6.41 37.16 0.24 0.88 16 3 O -0.35 -5.00 7.67 -55.14 -0.42 -5.42 16 4 C 0.09 1.19 2.32 -27.88 -0.06 1.13 16 5 H 0.09 0.94 7.74 -51.93 -0.40 0.54 16 6 C 0.48 8.13 6.69 -10.98 -0.07 8.06 16 7 O -0.54 -10.94 16.22 -14.35 -0.23 -11.17 16 8 N -0.70 -11.45 5.12 -60.29 -0.31 -11.76 16 9 C 0.12 2.08 4.08 -4.04 -0.02 2.07 16 10 C 0.19 3.27 0.68 -130.70 -0.09 3.18 16 11 N -0.71 -15.20 4.50 -46.20 -0.21 -15.41 16 12 C -0.23 -5.83 8.44 -15.06 -0.13 -5.96 16 13 H 0.07 1.76 7.42 -52.49 -0.39 1.37 16 14 C -0.01 -0.14 5.50 -17.43 -0.10 -0.23 16 15 N -0.93 -25.87 13.06 55.49 0.72 -25.15 16 16 Si 0.90 21.87 29.55 -169.99 -5.02 16.84 16 17 H -0.29 -7.10 7.11 56.52 0.40 -6.70 16 18 H -0.29 -7.25 7.11 56.52 0.40 -6.85 16 19 H -0.28 -6.85 7.11 56.52 0.40 -6.45 16 20 C -0.12 -1.78 5.77 -25.03 -0.14 -1.92 16 21 C -0.12 -1.65 6.91 -24.69 -0.17 -1.82 16 22 C -0.12 -1.70 6.83 -25.07 -0.17 -1.87 16 23 C -0.13 -2.20 5.90 -25.62 -0.15 -2.35 16 24 C -0.12 -1.60 2.80 -88.67 -0.25 -1.85 16 25 H 0.11 1.57 7.60 -51.93 -0.39 1.17 16 26 C -0.15 -1.68 6.55 -24.48 -0.16 -1.84 16 27 C 0.05 0.68 7.78 38.18 0.30 0.98 16 28 O -0.38 -6.53 11.36 -35.23 -0.40 -6.93 16 29 C 0.06 1.02 6.81 37.88 0.26 1.28 16 30 H 0.06 0.71 8.14 -51.93 -0.42 0.29 16 31 H 0.06 0.56 8.14 -51.93 -0.42 0.14 16 32 H 0.07 0.52 8.14 -51.93 -0.42 0.10 16 33 H 0.05 0.42 7.97 -51.93 -0.41 0.01 16 34 H 0.05 0.68 7.96 -51.93 -0.41 0.27 16 35 H 0.40 6.32 7.44 -40.82 -0.30 6.02 16 36 H 0.06 1.28 7.63 -51.93 -0.40 0.88 16 37 H 0.05 0.91 8.02 -51.93 -0.42 0.50 16 38 H 0.38 8.77 7.44 -40.82 -0.30 8.46 16 39 H 0.25 7.03 8.31 -40.82 -0.34 6.69 16 40 H 0.06 0.84 7.78 -51.93 -0.40 0.43 16 41 H 0.07 0.96 7.70 -51.93 -0.40 0.56 16 42 H 0.07 1.06 8.14 -51.93 -0.42 0.64 16 43 H 0.05 0.66 8.14 -51.93 -0.42 0.24 16 44 H 0.06 0.78 8.14 -51.93 -0.42 0.36 16 45 H 0.05 0.71 8.14 -51.93 -0.42 0.28 16 46 H 0.08 1.66 7.27 -51.93 -0.38 1.28 16 47 H 0.05 0.84 7.67 -51.93 -0.40 0.44 16 48 H 0.08 0.77 8.14 -51.93 -0.42 0.35 16 49 H 0.09 0.97 7.37 -51.93 -0.38 0.59 16 50 H 0.08 0.88 8.14 -51.93 -0.42 0.46 16 51 H 0.06 0.78 8.14 -51.93 -0.42 0.36 16 52 H 0.08 1.44 7.04 -51.93 -0.37 1.08 16 53 H 0.07 1.40 8.14 -51.92 -0.42 0.97 16 LS Contribution 414.47 15.07 6.25 6.25 Total: -1.00 -30.12 414.47 -9.51 -39.63 By element: Atomic # 1 Polarization: 24.01 SS G_CDS: -9.55 Total: 14.46 kcal Atomic # 6 Polarization: -1.00 SS G_CDS: -0.34 Total: -1.34 kcal Atomic # 7 Polarization: -52.52 SS G_CDS: 0.21 Total: -52.32 kcal Atomic # 8 Polarization: -22.47 SS G_CDS: -1.06 Total: -23.52 kcal Atomic # 14 Polarization: 21.87 SS G_CDS: -5.02 Total: 16.84 kcal Total LS contribution 6.25 Total: 6.25 kcal Total: -30.12 -9.51 -39.63 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. ZINC001698799913.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 -90.362 kcal (2) G-P(sol) polarization free energy of solvation -30.117 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -120.479 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.509 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -39.627 kcal (6) G-S(sol) free energy of system = (1) + (5) -129.988 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.79 seconds