Wall clock time and date at job start Tue Mar 31 2020 23:38:33 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 H 1.09003 * 109.49578 * 2 1 4 4 C 1.53048 * 109.49495 * 239.93650 * 2 1 3 5 5 C 1.53045 * 109.53451 * 178.64976 * 4 2 1 6 6 C 1.53198 * 109.31190 * 61.36612 * 5 4 2 7 7 N 1.46932 * 108.77219 * 305.36159 * 6 5 4 8 8 C 1.34775 * 120.62672 * 233.58412 * 7 6 5 9 9 O 1.21687 * 119.99687 * 177.25039 * 8 7 6 10 10 C 1.46375 * 120.00319 * 357.24753 * 8 7 6 11 11 H 1.07996 * 119.99767 * 333.03158 * 10 8 7 12 12 C 1.40043 * 119.99526 * 153.02182 * 10 8 7 13 13 N 1.30674 * 120.00761 * 350.02874 * 12 10 8 14 14 Si 1.86800 * 119.99821 * 170.02244 * 12 10 8 15 15 H 1.48505 * 109.47110 * 0.02562 * 14 12 10 16 16 H 1.48495 * 109.47468 * 240.00454 * 14 12 10 17 17 H 1.48497 * 109.47157 * 120.00078 * 14 12 10 18 18 C 1.46921 * 118.73774 * 53.86635 * 7 6 5 19 19 H 1.09006 * 109.59125 * 65.92084 * 18 7 6 20 20 C 1.52999 * 109.58650 * 186.34769 * 18 7 6 21 21 C 1.53006 * 109.47257 * 67.55184 * 20 18 7 22 22 N 1.46499 * 109.47130 * 185.72960 * 21 20 18 23 23 C 1.34776 * 119.99480 * 179.97438 * 22 21 20 24 24 O 1.21503 * 120.00406 * 0.02562 * 23 22 21 25 25 O 1.34645 * 119.99504 * 180.02562 * 23 22 21 26 26 C 1.45198 * 116.99555 * 180.02562 * 25 23 22 27 27 C 1.52997 * 109.47195 * 60.00047 * 26 25 23 28 28 C 1.53000 * 109.46547 * 180.02562 * 26 25 23 29 29 C 1.52999 * 109.47218 * 300.00018 * 26 25 23 30 30 H 1.09004 * 109.47061 * 180.02562 * 1 2 3 31 31 H 1.08996 * 109.46995 * 300.06132 * 1 2 3 32 32 H 1.09004 * 109.47304 * 60.06614 * 1 2 3 33 33 H 1.08994 * 109.46067 * 58.63077 * 4 2 1 34 34 H 1.08998 * 109.44673 * 298.66212 * 4 2 1 35 35 H 1.09003 * 109.49770 * 301.41809 * 5 4 2 36 36 H 1.08999 * 109.49721 * 181.31770 * 5 4 2 37 37 H 1.08993 * 109.58410 * 185.57858 * 6 5 4 38 38 H 1.08996 * 109.70008 * 65.21978 * 6 5 4 39 39 H 0.97000 * 119.99714 * 3.50704 * 13 12 10 40 40 H 1.08998 * 109.47337 * 187.55505 * 20 18 7 41 41 H 1.08998 * 109.47141 * 307.55476 * 20 18 7 42 42 H 1.09000 * 109.46962 * 305.73279 * 21 20 18 43 43 H 1.08998 * 109.46476 * 65.73158 * 21 20 18 44 44 H 0.97000 * 120.00179 * 0.02562 * 22 21 20 45 45 H 1.09002 * 109.47222 * 59.99939 * 27 26 25 46 46 H 1.09002 * 109.47045 * 179.97438 * 27 26 25 47 47 H 1.09001 * 109.47240 * 299.99880 * 27 26 25 48 48 H 1.08997 * 109.47602 * 60.00366 * 28 26 25 49 49 H 1.09008 * 109.46864 * 179.97438 * 28 26 25 50 50 H 1.08993 * 109.47529 * 299.99633 * 28 26 25 51 51 H 1.09000 * 109.47607 * 60.00286 * 29 26 25 52 52 H 1.08995 * 109.47155 * 180.02562 * 29 26 25 53 53 H 1.09006 * 109.47026 * 299.99946 * 29 26 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 1.5300 0.0000 0.0000 3 1 1.8938 1.0275 0.0000 4 6 2.0408 -0.7228 -1.2487 5 6 3.5708 -0.6939 -1.2667 6 6 4.1060 -1.4255 -0.0317 7 7 3.5053 -0.8283 1.1689 8 6 4.2819 -0.3854 2.1774 9 8 3.7754 0.1527 3.1442 10 6 5.7346 -0.5515 2.1099 11 1 6.1594 -1.3606 1.5342 12 6 6.5736 0.3388 2.7915 13 7 6.0793 1.4249 3.3241 14 14 8.3996 -0.0263 2.9398 15 1 8.7051 -1.3085 2.2557 16 1 8.7689 -0.1299 4.3743 17 1 9.1765 1.0694 2.3065 18 6 2.0418 -0.7288 1.2517 19 1 1.6096 -1.7285 1.2982 20 6 1.6513 0.0606 2.5028 21 6 2.0907 1.5176 2.3443 22 7 1.8411 2.2416 3.5932 23 6 2.1526 3.5494 3.6877 24 8 2.6400 4.1282 2.7370 25 8 1.9237 4.2147 4.8358 26 6 2.2834 5.6211 4.8655 27 6 1.4946 6.3720 3.7909 28 6 1.9530 6.2029 6.2415 29 6 3.7820 5.7701 4.5958 30 1 -0.3633 -1.0277 0.0005 31 1 -0.3633 0.5148 0.8894 32 1 -0.3634 0.5128 -0.8906 33 1 1.6577 -0.2243 -2.1390 34 1 1.6971 -1.7571 -1.2353 35 1 3.9154 0.3401 -1.2547 36 1 3.9334 -1.1883 -2.1679 37 1 5.1901 -1.3229 0.0126 38 1 3.8407 -2.4813 -0.0864 39 1 5.1239 1.5894 3.2915 40 1 0.5703 0.0195 2.6358 41 1 2.1413 -0.3738 3.3742 42 1 3.1547 1.5528 2.1103 43 1 1.5253 1.9816 1.5362 44 1 1.4524 1.7795 4.3523 45 1 0.4270 6.2659 3.9830 46 1 1.7643 7.4279 3.8135 47 1 1.7304 5.9574 2.8108 48 1 2.5152 5.6678 7.0068 49 1 2.2234 7.2586 6.2640 50 1 0.8854 6.0967 6.4341 51 1 4.0178 5.3555 3.6157 52 1 4.0521 6.8258 4.6186 53 1 4.3439 5.2351 5.3614 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 ZINC000846440861.mol2 53 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Tue Mar 31 2020 23:38:33 Heat of formation + Delta-G solvation = -114.719682 kcal Electronic energy + Delta-G solvation = -32994.643200 eV Core-core repulsion = 28866.706323 eV Total energy + Delta-G solvation = -4127.936877 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 1.06 seconds Orbital eigenvalues (eV) -40.28604 -39.69047 -36.92283 -36.49975 -34.66978 -33.75994 -32.87208 -32.63376 -31.62548 -28.93134 -27.26901 -27.11033 -26.49321 -25.55941 -24.38628 -22.72432 -21.64025 -20.87871 -20.18774 -19.54859 -18.79044 -17.61541 -16.86018 -16.22798 -15.93956 -15.39924 -15.20932 -14.76127 -14.66728 -14.17192 -14.04615 -13.88406 -13.81571 -13.49832 -13.19017 -13.07143 -12.94226 -12.63029 -12.39642 -12.34819 -12.03802 -11.87903 -11.70159 -11.62851 -11.60029 -11.52505 -11.24119 -11.16767 -11.00254 -10.98742 -10.93033 -10.60735 -10.36729 -10.25543 -10.16190 -10.10106 -10.01798 -9.87169 -9.72938 -9.50199 -8.75031 -8.28658 -7.35854 -7.34544 -6.54517 -4.64099 2.74245 3.29603 3.32716 3.47499 3.50764 4.11559 4.41569 4.45624 4.69677 4.92944 4.95998 5.04884 5.08434 5.12210 5.22012 5.43488 5.55237 5.57082 5.63854 5.69468 5.72219 5.78839 5.80427 5.82444 5.82987 5.88456 5.93454 5.98647 6.01629 6.07976 6.09191 6.15244 6.18373 6.24883 6.30321 6.40979 6.43818 6.48255 6.56002 6.58670 6.68092 6.79068 6.88527 7.06927 7.08688 7.20840 7.42633 7.91403 8.06907 8.13408 8.46340 8.87982 9.03186 9.41534 10.26917 10.69629 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.008802 B = 0.004899 C = 0.003449 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 3180.500433 B = 5714.423068 C = 8115.444498 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.143 4.143 2 C -0.112 4.112 3 H 0.077 0.923 4 C -0.109 4.109 5 C -0.135 4.135 6 C 0.123 3.877 7 N -0.633 5.633 8 C 0.559 3.441 9 O -0.599 6.599 10 C -0.615 4.615 11 H 0.068 0.932 12 C 0.050 3.950 13 N -0.820 5.820 14 Si 1.079 2.921 15 H -0.283 1.283 16 H -0.281 1.281 17 H -0.282 1.282 18 C 0.166 3.834 19 H 0.053 0.947 20 C -0.126 4.126 21 C 0.159 3.841 22 N -0.689 5.689 23 C 0.648 3.352 24 O -0.574 6.574 25 O -0.371 6.371 26 C 0.137 3.863 27 C -0.181 4.181 28 C -0.139 4.139 29 C -0.183 4.183 30 H 0.051 0.949 31 H 0.056 0.944 32 H 0.050 0.950 33 H 0.055 0.945 34 H 0.056 0.944 35 H 0.064 0.936 36 H 0.062 0.938 37 H 0.095 0.905 38 H 0.040 0.960 39 H 0.311 0.689 40 H 0.036 0.964 41 H 0.119 0.881 42 H 0.098 0.902 43 H 0.034 0.966 44 H 0.398 0.602 45 H 0.055 0.945 46 H 0.065 0.935 47 H 0.088 0.912 48 H 0.066 0.934 49 H 0.076 0.924 50 H 0.062 0.938 51 H 0.091 0.909 52 H 0.063 0.937 53 H 0.061 0.939 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -9.295 2.176 -2.345 9.831 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 -0.201 4.201 2 C -0.131 4.131 3 H 0.095 0.905 4 C -0.146 4.146 5 C -0.174 4.174 6 C -0.001 4.001 7 N -0.368 5.368 8 C 0.369 3.631 9 O -0.489 6.489 10 C -0.651 4.651 11 H 0.086 0.914 12 C -0.172 4.172 13 N -0.452 5.452 14 Si 0.905 3.095 15 H -0.208 1.208 16 H -0.207 1.207 17 H -0.208 1.208 18 C 0.061 3.939 19 H 0.071 0.929 20 C -0.163 4.163 21 C 0.038 3.962 22 N -0.345 5.345 23 C 0.401 3.599 24 O -0.463 6.463 25 O -0.287 6.287 26 C 0.100 3.900 27 C -0.238 4.238 28 C -0.196 4.196 29 C -0.240 4.240 30 H 0.070 0.930 31 H 0.075 0.925 32 H 0.069 0.931 33 H 0.073 0.927 34 H 0.075 0.925 35 H 0.083 0.917 36 H 0.080 0.920 37 H 0.113 0.887 38 H 0.059 0.941 39 H 0.129 0.871 40 H 0.055 0.945 41 H 0.137 0.863 42 H 0.116 0.884 43 H 0.052 0.948 44 H 0.231 0.769 45 H 0.074 0.926 46 H 0.084 0.916 47 H 0.107 0.893 48 H 0.085 0.915 49 H 0.095 0.905 50 H 0.081 0.919 51 H 0.110 0.890 52 H 0.082 0.918 53 H 0.080 0.920 Dipole moment (debyes) X Y Z Total from point charges -7.930 3.417 -1.726 8.806 hybrid contribution -1.621 -0.883 -0.500 1.912 sum -9.551 2.534 -2.226 10.129 Atomic orbital electron populations 1.21797 0.95435 1.01339 1.01496 1.21784 0.95059 1.00745 0.95536 0.90480 1.21526 0.95942 1.00001 0.97162 1.21940 0.95455 1.01749 0.98219 1.21391 0.99999 0.94557 0.84151 1.48093 1.03778 1.65782 1.19148 1.18326 0.87416 0.76746 0.80644 1.90440 1.74228 1.49428 1.34811 1.21850 0.89830 1.17958 1.35489 0.91421 1.26483 1.06927 0.92013 0.91810 1.70131 1.20849 1.21507 1.32747 0.83460 0.72983 0.75918 0.77175 1.20835 1.20710 1.20817 1.20908 0.82817 0.96769 0.93391 0.92945 1.22326 0.97675 0.95264 1.01014 1.21728 1.03222 0.89407 0.81833 1.44617 1.65752 1.06401 1.17768 1.18046 0.77676 0.82959 0.81250 1.90853 1.48695 1.67860 1.38928 1.86262 1.79764 1.25452 1.37177 1.21929 0.95434 0.76380 0.96244 1.22501 0.99591 1.00392 1.01341 1.21835 1.02440 1.00542 0.94783 1.22496 0.93975 1.02156 1.05356 0.92991 0.92470 0.93076 0.92662 0.92498 0.91686 0.91950 0.88682 0.94125 0.87145 0.94529 0.86297 0.88398 0.94764 0.76866 0.92627 0.91593 0.89295 0.91515 0.90527 0.91852 0.88999 0.91793 0.91988 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 C -0.14 -1.82 8.97 37.16 0.33 -1.49 16 2 C -0.11 -1.72 1.94 -90.27 -0.17 -1.90 16 3 H 0.08 1.37 6.16 -51.93 -0.32 1.05 16 4 C -0.11 -1.51 5.17 -26.68 -0.14 -1.65 16 5 C -0.14 -2.06 6.08 -26.61 -0.16 -2.23 16 6 C 0.12 2.22 6.29 -3.70 -0.02 2.19 16 7 N -0.63 -13.19 2.92 -166.61 -0.49 -13.67 16 8 C 0.56 14.25 6.13 -12.99 -0.08 14.17 16 9 O -0.60 -15.91 8.00 5.20 0.04 -15.87 16 10 C -0.61 -16.46 8.32 -35.63 -0.30 -16.76 16 11 H 0.07 1.72 6.51 -52.49 -0.34 1.38 16 12 C 0.05 1.36 5.43 -17.37 -0.09 1.27 16 13 N -0.82 -24.42 13.48 55.55 0.75 -23.67 16 14 Si 1.08 23.61 29.95 -169.99 -5.09 18.52 16 15 H -0.28 -5.77 7.11 56.52 0.40 -5.37 16 16 H -0.28 -6.10 7.11 56.52 0.40 -5.70 16 17 H -0.28 -6.04 7.11 56.52 0.40 -5.64 16 18 C 0.17 2.96 2.69 -67.38 -0.18 2.77 16 19 H 0.05 0.89 8.14 -51.93 -0.42 0.46 16 20 C -0.13 -2.31 4.17 -26.73 -0.11 -2.43 16 21 C 0.16 3.28 3.69 -4.04 -0.01 3.26 16 22 N -0.69 -13.62 5.51 -65.28 -0.36 -13.98 16 23 C 0.65 13.51 8.06 54.05 0.44 13.95 16 24 O -0.57 -13.23 11.88 -19.27 -0.23 -13.46 16 25 O -0.37 -6.84 9.94 -40.34 -0.40 -7.24 16 26 C 0.14 2.13 1.13 -90.62 -0.10 2.02 16 27 C -0.18 -2.58 8.37 37.16 0.31 -2.27 16 28 C -0.14 -1.63 8.85 37.16 0.33 -1.30 16 29 C -0.18 -3.04 8.37 37.16 0.31 -2.73 16 30 H 0.05 0.60 8.14 -51.93 -0.42 0.18 16 31 H 0.06 0.74 6.83 -51.93 -0.35 0.39 16 32 H 0.05 0.59 8.14 -51.93 -0.42 0.17 16 33 H 0.05 0.69 8.14 -51.93 -0.42 0.27 16 34 H 0.06 0.74 8.14 -51.93 -0.42 0.31 16 35 H 0.06 1.11 8.14 -51.93 -0.42 0.69 16 36 H 0.06 0.80 8.14 -51.93 -0.42 0.38 16 37 H 0.09 1.86 5.69 -51.93 -0.30 1.56 16 38 H 0.04 0.66 8.14 -51.93 -0.42 0.24 16 39 H 0.31 9.66 5.74 -40.82 -0.23 9.43 16 40 H 0.04 0.57 7.05 -51.93 -0.37 0.21 16 41 H 0.12 2.55 5.73 -53.14 -0.30 2.25 16 42 H 0.10 2.51 5.07 -51.93 -0.26 2.25 16 43 H 0.03 0.69 6.58 -51.93 -0.34 0.35 16 44 H 0.40 7.05 8.58 -40.82 -0.35 6.70 16 45 H 0.05 0.73 8.14 -51.93 -0.42 0.30 16 46 H 0.07 0.78 8.14 -51.93 -0.42 0.35 16 47 H 0.09 1.52 5.88 -51.93 -0.31 1.22 16 48 H 0.07 0.79 8.14 -51.93 -0.42 0.37 16 49 H 0.08 0.73 8.14 -51.92 -0.42 0.30 16 50 H 0.06 0.68 8.14 -51.93 -0.42 0.26 16 51 H 0.09 1.86 5.88 -51.93 -0.31 1.56 16 52 H 0.06 0.87 8.14 -51.93 -0.42 0.44 16 53 H 0.06 1.07 8.14 -51.93 -0.42 0.64 16 LS Contribution 394.45 15.07 5.94 5.94 Total: -1.00 -31.12 394.45 -8.41 -39.53 By element: Atomic # 1 Polarization: 25.93 SS G_CDS: -8.92 Total: 17.01 kcal Atomic # 6 Polarization: 6.55 SS G_CDS: 0.34 Total: 6.89 kcal Atomic # 7 Polarization: -51.22 SS G_CDS: -0.10 Total: -51.32 kcal Atomic # 8 Polarization: -35.98 SS G_CDS: -0.59 Total: -36.57 kcal Atomic # 14 Polarization: 23.61 SS G_CDS: -5.09 Total: 18.52 kcal Total LS contribution 5.94 Total: 5.94 kcal Total: -31.12 -8.41 -39.53 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. ZINC000846440861.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 -75.194 kcal (2) G-P(sol) polarization free energy of solvation -31.116 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -106.310 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -8.410 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -39.525 kcal (6) G-S(sol) free energy of system = (1) + (5) -114.720 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.06 seconds