Wall clock time and date at job start Wed Apr 1 2020 01:40:07 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 1.50697 * 1 3 3 C 1.38262 * 120.00086 * 2 1 4 4 C 1.38207 * 119.99909 * 180.23361 * 3 2 1 5 5 C 1.38260 * 120.00290 * 359.81245 * 4 3 2 6 6 C 1.38213 * 119.99753 * 359.97438 * 5 4 3 7 7 C 1.38221 * 120.00276 * 179.79415 * 2 1 3 8 8 C 1.50697 * 119.99642 * 359.97438 * 7 2 1 9 9 C 1.53003 * 109.46963 * 84.72950 * 8 7 2 10 10 H 1.09006 * 109.47297 * 304.99622 * 9 8 7 11 11 C 1.52995 * 109.47330 * 65.00105 * 9 8 7 12 12 C 1.50708 * 109.47075 * 184.99994 * 9 8 7 13 13 O 1.21290 * 119.99664 * 359.97438 * 12 9 8 14 14 N 1.34771 * 120.00156 * 180.02562 * 12 9 8 15 15 C 1.46501 * 120.00271 * 180.02562 * 14 12 9 16 16 H 1.09004 * 110.68287 * 32.85668 * 15 14 12 17 17 C 1.54853 * 110.62846 * 155.84777 * 15 14 12 18 18 C 1.55843 * 103.44132 * 118.48655 * 17 15 14 19 19 H 1.09007 * 115.55673 * 158.80778 * 18 17 15 20 20 C 1.55836 * 105.06809 * 287.42280 * 18 17 15 21 21 C 1.56686 * 102.60017 * 72.30442 * 20 18 17 22 22 C 1.55844 * 110.62323 * 269.87613 * 15 14 12 23 23 H 1.09000 * 116.13225 * 82.35607 * 22 15 14 24 24 N 1.50233 * 101.05086 * 208.57223 * 22 15 14 25 25 C 1.36941 * 130.83754 * 233.99180 * 24 22 15 26 26 H 1.07996 * 120.00150 * 359.97438 * 25 24 22 27 27 C 1.38819 * 119.99930 * 179.97438 * 25 24 22 28 28 N 1.31622 * 119.99941 * 359.97438 * 27 25 24 29 29 Si 1.86798 * 119.99981 * 179.97438 * 27 25 24 30 30 H 1.48505 * 109.46948 * 0.02562 * 29 27 25 31 31 H 1.48504 * 109.46987 * 119.99703 * 29 27 25 32 32 H 1.48498 * 109.47333 * 240.00066 * 29 27 25 33 33 H 1.08998 * 109.46868 * 270.20460 * 1 2 3 34 34 H 1.09005 * 109.47087 * 30.21150 * 1 2 3 35 35 H 1.09003 * 109.46927 * 150.20452 * 1 2 3 36 36 H 1.08002 * 119.99733 * 0.06724 * 3 2 1 37 37 H 1.08004 * 120.00138 * 179.83840 * 4 3 2 38 38 H 1.07997 * 120.00099 * 180.02562 * 5 4 3 39 39 H 1.07995 * 119.99701 * 180.02562 * 6 5 4 40 40 H 1.09001 * 109.47304 * 324.73229 * 8 7 2 41 41 H 1.09004 * 109.47176 * 204.72787 * 8 7 2 42 42 H 1.08989 * 109.47218 * 59.99794 * 11 9 8 43 43 H 1.09002 * 109.46953 * 180.02562 * 11 9 8 44 44 H 1.08997 * 109.47041 * 299.99657 * 11 9 8 45 45 H 0.97007 * 119.99577 * 359.97438 * 14 12 9 46 46 H 1.08999 * 110.62427 * 359.97438 * 17 15 14 47 47 H 1.08991 * 110.62367 * 236.97599 * 17 15 14 48 48 H 1.09000 * 110.62906 * 190.32020 * 20 18 17 49 49 H 1.09006 * 110.62590 * 313.33840 * 20 18 17 50 50 H 1.09002 * 110.35423 * 241.22166 * 21 20 18 51 51 H 1.09000 * 110.88282 * 118.36609 * 21 20 18 52 52 H 0.97002 * 119.99909 * 180.02562 * 28 27 25 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 1.5070 0.0000 0.0000 3 6 2.1983 1.1974 0.0000 4 6 3.5804 1.1973 -0.0049 5 6 4.2717 0.0000 -0.0058 6 6 3.5806 -1.1970 -0.0014 7 6 2.1981 -1.1970 0.0043 8 6 1.4446 -2.5020 0.0096 9 6 1.0743 -2.8829 -1.4253 10 1 0.5226 -2.0644 -1.8876 11 6 2.3493 -3.1550 -2.2260 12 6 0.2164 -4.1219 -1.4107 13 8 -0.0702 -4.6486 -0.3564 14 7 -0.2315 -4.6451 -2.5691 15 6 -1.0660 -5.8491 -2.5549 16 1 -1.6920 -5.8732 -1.6628 17 6 -1.9356 -5.9253 -3.8339 18 6 -1.4592 -7.2421 -4.5179 19 1 -2.1590 -7.6831 -5.2279 20 6 -0.0440 -6.9160 -5.0830 21 6 0.8337 -6.8457 -3.7870 22 6 -0.1826 -7.1302 -2.6403 23 1 0.2514 -7.4775 -1.7027 24 7 -1.1237 -8.0841 -3.3197 25 6 -1.5461 -9.3355 -2.9580 26 1 -1.1873 -9.7829 -2.0429 27 6 -2.4354 -10.0289 -3.7675 28 7 -2.8730 -9.4833 -4.8825 29 14 -3.0110 -11.7362 -3.2744 30 1 -2.3774 -12.1196 -1.9872 31 1 -4.4877 -11.7345 -3.1174 32 1 -2.6260 -12.7114 -4.3260 33 1 -0.3633 0.0037 1.0277 34 1 -0.3633 0.8881 -0.5171 35 1 -0.3633 -0.8918 -0.5107 36 1 1.6583 2.1327 0.0011 37 1 4.1204 2.1326 -0.0075 38 1 5.3517 0.0000 -0.0092 39 1 4.1206 -2.1322 -0.0017 40 1 0.5365 -2.3949 0.6029 41 1 2.0715 -3.2818 0.4422 42 1 2.9010 -3.9734 -1.7637 43 1 2.0855 -3.4258 -3.2483 44 1 2.9698 -2.2589 -2.2366 45 1 -0.0019 -4.2239 -3.4123 46 1 -1.7463 -5.0671 -4.4786 47 1 -2.9928 -5.9872 -3.5762 48 1 0.3018 -7.7159 -5.7378 49 1 -0.0517 -5.9624 -5.6111 50 1 1.2685 -5.8522 -3.6769 51 1 1.6149 -7.6057 -3.8050 52 1 -3.4947 -9.9677 -5.4480 RHF calculation, no. of doubly occupied orbitals= 65 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 ZINC001110173044.mol2 52 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Wed Apr 1 2020 01:40:07 Heat of formation + Delta-G solvation = 18.600012 kcal Electronic energy + Delta-G solvation = -30424.102024 eV Core-core repulsion = 26581.943764 eV Total energy + Delta-G solvation = -3842.158260 eV No. of doubly occupied orbitals = 65 Molecular weight (most abundant/longest-lived isotopes) = 342.205 amu Computer time = 1.29 seconds Orbital eigenvalues (eV) -40.39538 -39.65762 -38.38042 -35.05141 -33.92827 -32.91945 -32.30250 -31.01617 -29.17215 -29.00688 -27.65687 -27.32399 -26.65086 -24.39664 -23.42658 -22.20333 -21.39041 -20.80612 -19.86623 -19.36783 -18.54864 -17.27705 -16.90487 -16.34117 -15.93483 -15.60190 -15.12055 -14.97616 -14.83092 -14.42996 -14.21950 -13.94559 -13.65538 -13.44549 -13.36259 -13.02893 -12.75254 -12.47036 -12.31800 -12.26129 -12.17790 -12.09602 -11.73052 -11.48360 -11.43229 -11.21993 -11.03807 -11.02013 -10.93991 -10.91515 -10.87693 -10.82502 -10.23965 -10.06650 -9.81470 -9.53581 -9.34630 -9.22298 -8.98891 -8.93526 -8.73973 -8.47714 -6.90713 -5.72578 -3.10563 1.13498 1.17741 2.90197 3.38700 3.41575 3.45735 3.47658 3.60962 4.44675 4.56783 4.58476 4.72855 4.74592 4.79167 4.90935 4.97178 5.13335 5.22173 5.24342 5.30413 5.39026 5.41939 5.45226 5.55565 5.61358 5.63978 5.67666 5.68580 5.81249 5.85337 5.87810 5.93889 5.95256 6.04331 6.08843 6.12195 6.12765 6.28848 6.30464 6.32113 6.33260 6.50313 6.54466 6.60825 6.70596 6.81048 6.81933 6.97023 7.00835 7.28147 7.53184 7.75577 7.87911 8.17371 8.54391 9.10794 9.73266 10.53756 11.36958 Molecular weight = 342.20amu Principal moments of inertia in cm(-1) A = 0.026449 B = 0.002249 C = 0.002231 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1058.396115 B =12444.504633 C =12548.656495 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.121 4.121 2 C -0.082 4.082 3 C -0.121 4.121 4 C -0.124 4.124 5 C -0.126 4.126 6 C -0.111 4.111 7 C -0.076 4.076 8 C -0.063 4.063 9 C -0.105 4.105 10 H 0.094 0.906 11 C -0.145 4.145 12 C 0.512 3.488 13 O -0.543 6.543 14 N -0.711 5.711 15 C 0.127 3.873 16 H 0.083 0.917 17 C -0.141 4.141 18 C 0.153 3.847 19 H 0.153 0.847 20 C -0.138 4.138 21 C -0.130 4.130 22 C 0.128 3.872 23 H 0.084 0.916 24 N -0.590 5.590 25 C -0.208 4.208 26 H 0.080 0.920 27 C -0.013 4.013 28 N -0.923 5.923 29 Si 0.916 3.084 30 H -0.280 1.280 31 H -0.291 1.291 32 H -0.291 1.291 33 H 0.071 0.929 34 H 0.065 0.935 35 H 0.071 0.929 36 H 0.119 0.881 37 H 0.118 0.882 38 H 0.119 0.881 39 H 0.122 0.878 40 H 0.083 0.917 41 H 0.079 0.921 42 H 0.062 0.938 43 H 0.060 0.940 44 H 0.067 0.933 45 H 0.394 0.606 46 H 0.053 0.947 47 H 0.064 0.936 48 H 0.054 0.946 49 H 0.047 0.953 50 H 0.051 0.949 51 H 0.050 0.950 52 H 0.253 0.747 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 11.201 21.774 4.607 24.915 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 -0.178 4.178 2 C -0.082 4.082 3 C -0.139 4.139 4 C -0.142 4.142 5 C -0.144 4.144 6 C -0.129 4.129 7 C -0.076 4.076 8 C -0.101 4.101 9 C -0.126 4.126 10 H 0.112 0.888 11 C -0.203 4.203 12 C 0.297 3.703 13 O -0.421 6.421 14 N -0.361 5.361 15 C 0.022 3.978 16 H 0.101 0.899 17 C -0.181 4.181 18 C 0.047 3.953 19 H 0.170 0.830 20 C -0.177 4.177 21 C -0.170 4.170 22 C 0.019 3.981 23 H 0.102 0.898 24 N -0.310 5.310 25 C -0.336 4.336 26 H 0.097 0.903 27 C -0.209 4.209 28 N -0.572 5.572 29 Si 0.747 3.253 30 H -0.205 1.205 31 H -0.218 1.218 32 H -0.218 1.218 33 H 0.090 0.910 34 H 0.084 0.916 35 H 0.090 0.910 36 H 0.137 0.863 37 H 0.136 0.864 38 H 0.137 0.863 39 H 0.140 0.860 40 H 0.101 0.899 41 H 0.097 0.903 42 H 0.081 0.919 43 H 0.079 0.921 44 H 0.086 0.914 45 H 0.229 0.771 46 H 0.072 0.928 47 H 0.083 0.917 48 H 0.073 0.927 49 H 0.065 0.935 50 H 0.069 0.931 51 H 0.069 0.931 52 H 0.064 0.936 Dipole moment (debyes) X Y Z Total from point charges 10.792 21.061 5.337 24.259 hybrid contribution -0.040 -0.533 -0.194 0.569 sum 10.752 20.528 5.143 23.737 Atomic orbital electron populations 1.20897 0.91267 1.02998 1.02613 1.19817 0.96057 0.92605 0.99674 1.21013 0.94270 0.97381 1.01209 1.21096 0.94307 0.97976 1.00784 1.21116 0.99757 0.92565 1.00981 1.21090 0.93611 0.98166 1.00012 1.19785 0.93650 0.94512 0.99657 1.20416 1.00746 0.93565 0.95358 1.21284 0.97136 0.96426 0.97775 0.88772 1.21829 0.96257 1.02561 0.99605 1.20519 0.80273 0.85355 0.84149 1.90699 1.58166 1.62402 1.30806 1.46251 1.52500 1.29241 1.08132 1.22614 0.92340 0.83497 0.99398 0.89909 1.23302 0.99124 0.99952 0.95748 1.23711 0.94116 0.86710 0.90793 0.83016 1.23358 0.99346 0.98879 0.96150 1.23221 0.97769 0.99040 0.96954 1.23184 0.91005 0.89094 0.94803 0.89792 1.46467 1.49445 1.13813 1.21283 1.19112 1.20386 0.89430 1.04687 0.90268 1.24704 1.00047 0.98941 0.97173 1.69453 1.36513 1.37227 1.13998 0.85956 0.78202 0.83577 0.77537 1.20547 1.21789 1.21830 0.91025 0.91601 0.90991 0.86291 0.86378 0.86286 0.86005 0.89869 0.90255 0.91909 0.92051 0.91395 0.77114 0.92805 0.91707 0.92679 0.93482 0.93092 0.93128 0.93642 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 15. 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 -0.12 -0.98 9.22 36.00 0.33 -0.65 16 2 C -0.08 -0.75 5.88 -104.62 -0.62 -1.37 16 3 C -0.12 -1.01 9.70 -39.58 -0.38 -1.40 16 4 C -0.12 -0.99 10.05 -39.58 -0.40 -1.38 16 5 C -0.13 -1.03 10.05 -39.58 -0.40 -1.43 16 6 C -0.11 -1.00 8.36 -39.59 -0.33 -1.33 16 7 C -0.08 -0.74 4.56 -104.63 -0.48 -1.22 16 8 C -0.06 -0.68 3.48 -27.88 -0.10 -0.78 16 9 C -0.10 -1.11 2.46 -91.77 -0.23 -1.34 16 10 H 0.09 0.88 7.00 -51.93 -0.36 0.52 16 11 C -0.15 -1.34 8.74 37.16 0.32 -1.02 16 12 C 0.51 7.45 7.15 -10.98 -0.08 7.37 16 13 O -0.54 -10.17 15.58 5.55 0.09 -10.08 16 14 N -0.71 -10.22 3.60 -51.39 -0.18 -10.41 16 15 C 0.13 2.36 3.14 -65.43 -0.21 2.16 16 16 H 0.08 1.75 7.58 -51.93 -0.39 1.35 16 17 C -0.14 -2.67 6.20 -24.24 -0.15 -2.82 16 18 C 0.15 3.43 4.67 -62.81 -0.29 3.13 16 19 H 0.15 3.90 5.52 -51.93 -0.29 3.61 16 20 C -0.14 -2.62 6.58 -23.23 -0.15 -2.77 16 21 C -0.13 -2.36 6.37 -23.22 -0.15 -2.51 16 22 C 0.13 2.67 5.35 -62.80 -0.34 2.34 16 23 H 0.08 1.83 8.14 -51.93 -0.42 1.41 16 24 N -0.59 -14.64 2.99 -145.82 -0.44 -15.08 16 25 C -0.21 -5.74 10.59 -15.05 -0.16 -5.90 16 26 H 0.08 2.16 7.83 -52.49 -0.41 1.75 16 27 C -0.01 -0.37 5.50 -17.43 -0.10 -0.47 16 28 N -0.92 -26.17 10.47 55.49 0.58 -25.59 16 29 Si 0.92 22.08 29.55 -169.99 -5.02 17.06 16 30 H -0.28 -6.62 7.11 56.52 0.40 -6.22 16 31 H -0.29 -7.06 7.11 56.52 0.40 -6.66 16 32 H -0.29 -7.06 7.11 56.52 0.40 -6.65 16 33 H 0.07 0.56 8.14 -51.93 -0.42 0.14 16 34 H 0.07 0.45 8.09 -51.93 -0.42 0.03 16 35 H 0.07 0.62 5.47 -51.93 -0.28 0.34 16 36 H 0.12 0.79 8.06 -52.49 -0.42 0.37 16 37 H 0.12 0.70 8.06 -52.48 -0.42 0.28 16 38 H 0.12 0.75 8.06 -52.49 -0.42 0.33 16 39 H 0.12 0.98 8.06 -52.49 -0.42 0.55 16 40 H 0.08 0.98 6.82 -51.93 -0.35 0.62 16 41 H 0.08 0.92 8.05 -51.93 -0.42 0.50 16 42 H 0.06 0.62 8.14 -51.94 -0.42 0.20 16 43 H 0.06 0.53 7.56 -51.93 -0.39 0.14 16 44 H 0.07 0.57 6.52 -51.93 -0.34 0.23 16 45 H 0.39 4.70 7.33 -40.82 -0.30 4.40 16 46 H 0.05 0.85 7.37 -51.93 -0.38 0.47 16 47 H 0.06 1.31 8.14 -51.93 -0.42 0.89 16 48 H 0.05 1.13 8.14 -51.93 -0.42 0.70 16 49 H 0.05 0.75 7.81 -51.93 -0.41 0.35 16 50 H 0.05 0.78 6.39 -51.93 -0.33 0.45 16 51 H 0.05 0.95 8.14 -51.93 -0.42 0.53 16 52 H 0.25 6.96 8.31 -40.82 -0.34 6.62 16 LS Contribution 400.26 15.07 6.03 6.03 Total: -1.00 -30.96 400.26 -11.28 -42.23 By element: Atomic # 1 Polarization: 15.67 SS G_CDS: -8.44 Total: 7.23 kcal Atomic # 6 Polarization: -7.50 SS G_CDS: -3.89 Total: -11.39 kcal Atomic # 7 Polarization: -51.03 SS G_CDS: -0.04 Total: -51.07 kcal Atomic # 8 Polarization: -10.17 SS G_CDS: 0.09 Total: -10.08 kcal Atomic # 14 Polarization: 22.08 SS G_CDS: -5.02 Total: 17.06 kcal Total LS contribution 6.03 Total: 6.03 kcal Total: -30.96 -11.28 -42.23 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. ZINC001110173044.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 60.833 kcal (2) G-P(sol) polarization free energy of solvation -30.955 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 29.878 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -11.278 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -42.233 kcal (6) G-S(sol) free energy of system = (1) + (5) 18.600 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.29 seconds