Wall clock time and date at job start Sat Apr 11 2020 06:11:32 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 O 1.42904 * 1 3 3 C 1.42901 * 114.00121 * 2 1 4 4 H 1.09004 * 109.57396 * 30.16218 * 3 2 1 5 5 C 1.53091 * 109.52338 * 270.00464 * 3 2 1 6 6 O 1.42908 * 109.42351 * 182.49300 * 5 3 2 7 7 C 1.42900 * 114.10137 * 61.14678 * 6 5 3 8 8 C 1.53087 * 109.41688 * 298.84557 * 7 6 5 9 9 C 1.53181 * 109.53224 * 150.31124 * 3 2 1 10 10 H 1.08993 * 109.60679 * 56.96815 * 9 3 2 11 11 C 1.53001 * 109.54233 * 296.74778 * 9 3 2 12 12 C 1.50699 * 109.46837 * 175.43333 * 11 9 3 13 13 O 1.21281 * 120.00086 * 359.97438 * 12 11 9 14 14 N 1.34777 * 120.00003 * 180.02562 * 12 11 9 15 15 C 1.46503 * 120.00252 * 180.02562 * 14 12 11 16 16 C 1.52995 * 109.47077 * 179.97438 * 15 14 12 17 17 C 1.53004 * 109.46986 * 179.97438 * 16 15 14 18 18 N 1.46505 * 109.47080 * 179.97438 * 17 16 15 19 19 C 1.36934 * 119.99864 * 90.00306 * 18 17 16 20 20 H 1.07998 * 119.99676 * 216.87476 * 19 18 17 21 21 C 1.38812 * 120.00216 * 36.87409 * 19 18 17 22 22 N 1.31624 * 119.99708 * 21.19099 * 21 19 18 23 23 Si 1.86797 * 120.00112 * 201.18852 * 21 19 18 24 24 H 1.48509 * 109.46801 * 90.00500 * 23 21 19 25 25 H 1.48503 * 109.47415 * 209.99958 * 23 21 19 26 26 H 1.48496 * 109.47350 * 330.00620 * 23 21 19 27 27 C 1.46499 * 120.00093 * 269.99941 * 18 17 16 28 28 C 1.52990 * 117.50087 * 194.47934 * 27 18 17 29 29 C 1.53001 * 117.49826 * 125.81823 * 27 18 17 30 30 H 1.09006 * 109.46563 * 300.00090 * 1 2 3 31 31 H 1.08999 * 109.46905 * 59.99100 * 1 2 3 32 32 H 1.08991 * 109.46728 * 179.97438 * 1 2 3 33 33 H 1.08992 * 109.48174 * 62.50022 * 5 3 2 34 34 H 1.09005 * 109.47899 * 302.47458 * 5 3 2 35 35 H 1.09004 * 109.47595 * 58.82883 * 7 6 5 36 36 H 1.09001 * 109.48097 * 178.84647 * 7 6 5 37 37 H 1.09001 * 109.52321 * 177.51123 * 8 7 6 38 38 H 1.08998 * 109.52474 * 297.63836 * 8 7 6 39 39 H 1.08996 * 109.47298 * 295.43388 * 11 9 3 40 40 H 1.08993 * 109.47124 * 55.43371 * 11 9 3 41 41 H 0.96997 * 119.99990 * 359.97438 * 14 12 11 42 42 H 1.09004 * 109.46551 * 299.99687 * 15 14 12 43 43 H 1.08993 * 109.47365 * 59.99452 * 15 14 12 44 44 H 1.09004 * 109.47272 * 299.99365 * 16 15 14 45 45 H 1.09002 * 109.47606 * 59.99586 * 16 15 14 46 46 H 1.08996 * 109.47264 * 299.99925 * 17 16 15 47 47 H 1.09006 * 109.46967 * 60.00127 * 17 16 15 48 48 H 0.97005 * 119.99821 * 174.84579 * 22 21 19 49 49 H 1.09001 * 115.54844 * 340.15313 * 27 18 17 50 50 H 1.09009 * 117.49954 * 0.02562 * 28 27 18 51 51 H 1.09004 * 117.50378 * 145.02044 * 28 27 18 52 52 H 1.08997 * 117.49809 * 214.97966 * 29 27 18 53 53 H 1.08998 * 117.49591 * 359.97438 * 29 27 18 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 8 1.4290 0.0000 0.0000 3 6 2.0103 1.3055 0.0000 4 1 1.3476 2.0003 0.5160 5 6 2.2183 1.7729 -1.4429 6 8 2.8526 3.0535 -1.4408 7 6 4.1432 3.0644 -0.8273 8 6 4.0125 2.6491 0.6404 9 6 3.3643 1.2632 0.7150 10 1 4.0110 0.5317 0.2306 11 6 3.1576 0.8731 2.1800 12 6 4.4972 0.7226 2.8535 13 8 5.5169 0.9085 2.2238 14 7 4.5622 0.3803 4.1555 15 6 5.8645 0.2345 4.8105 16 6 5.6577 -0.1557 6.2754 17 6 7.0178 -0.3086 6.9593 18 7 6.8198 -0.6816 8.3621 19 6 6.7502 -2.0026 8.7160 20 1 6.0719 -2.3179 9.4951 21 6 7.5513 -2.9365 8.0734 22 7 8.6429 -2.5484 7.4487 23 14 7.0802 -4.7440 8.0953 24 1 6.2185 -5.0451 6.9239 25 1 8.3084 -5.5765 8.0333 26 1 6.3392 -5.0473 9.3459 27 6 6.6964 0.3586 9.3863 28 6 6.8319 -0.0702 10.8486 29 6 5.4614 0.3186 10.2886 30 1 -0.3633 0.5139 0.8901 31 1 -0.3633 0.5140 -0.8899 32 1 -0.3632 -1.0276 -0.0005 33 1 1.2532 1.8461 -1.9440 34 1 2.8481 1.0561 -1.9699 35 1 4.7982 2.3645 -1.3462 36 1 4.5647 4.0679 -0.8852 37 1 5.0009 2.6141 1.0985 38 1 3.3912 3.3717 1.1695 39 1 2.5821 1.6490 2.6848 40 1 2.6168 -0.0718 2.2315 41 1 3.7466 0.2313 4.6591 42 1 6.4404 -0.5409 4.3054 43 1 6.4047 1.1797 4.7595 44 1 5.0819 0.6201 6.7803 45 1 5.1172 -1.1009 6.3269 46 1 7.5932 -1.0844 6.4544 47 1 7.5586 0.6365 6.9078 48 1 9.2418 -3.2074 7.0640 49 1 7.0870 1.3382 9.1108 50 1 7.0133 -1.1263 11.0488 51 1 7.3113 0.6274 11.5354 52 1 5.0398 1.2719 10.6071 53 1 4.7406 -0.4814 10.1198 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 ZINC001660691779.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 06:11:32 Heat of formation + Delta-G solvation = -94.906579 kcal Electronic energy + Delta-G solvation = -30116.470111 eV Core-core repulsion = 25989.392394 eV Total energy + Delta-G solvation = -4127.077717 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 1.02 seconds Orbital eigenvalues (eV) -40.48102 -39.20246 -37.60389 -37.17969 -35.41062 -34.30367 -33.56964 -31.66122 -30.72002 -29.86102 -28.66564 -26.97553 -25.44694 -24.12165 -23.39783 -22.97609 -21.38567 -20.98389 -20.64291 -20.05496 -19.73011 -17.40381 -16.92353 -16.60548 -16.47244 -16.10999 -15.82940 -15.63520 -15.37796 -15.23747 -15.01561 -14.58858 -14.34501 -14.07348 -13.83125 -13.66083 -13.28483 -13.07772 -12.83314 -12.74248 -12.52380 -12.03283 -11.93642 -11.88185 -11.64107 -11.41190 -11.23204 -11.03391 -10.96454 -10.86139 -10.80582 -10.72124 -10.60079 -10.40661 -10.35184 -10.13654 -9.89157 -9.75784 -9.52124 -9.39552 -9.25675 -8.81434 -8.47945 -6.52182 -5.86721 -3.43019 2.75563 3.18147 3.30040 3.34233 3.39405 3.39858 3.73522 4.35338 4.35931 4.39110 4.50724 4.72441 4.79749 4.93037 4.93207 4.98328 4.99171 5.06750 5.13508 5.16610 5.25502 5.30502 5.30844 5.37907 5.41726 5.56298 5.60897 5.66257 5.74401 5.75566 5.89258 5.99668 6.00830 6.03402 6.11578 6.23238 6.37432 6.45084 6.46485 6.59643 6.65021 6.68989 6.78125 6.94907 6.96961 7.09194 7.16259 7.61862 7.67331 7.77957 8.36425 8.46154 9.11500 9.74031 10.30563 11.13899 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.014390 B = 0.002106 C = 0.002025 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1945.303560 B =13290.105292 C =13822.332073 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.028 3.972 2 O -0.377 6.377 3 C 0.060 3.940 4 H 0.070 0.930 5 C 0.043 3.957 6 O -0.381 6.381 7 C 0.058 3.942 8 C -0.154 4.154 9 C -0.068 4.068 10 H 0.089 0.911 11 C -0.135 4.135 12 C 0.509 3.491 13 O -0.544 6.544 14 N -0.726 5.726 15 C 0.121 3.879 16 C -0.145 4.145 17 C 0.151 3.849 18 N -0.550 5.550 19 C -0.263 4.263 20 H 0.063 0.937 21 C 0.016 3.984 22 N -0.887 5.887 23 Si 0.899 3.101 24 H -0.285 1.285 25 H -0.290 1.290 26 H -0.277 1.277 27 C 0.128 3.872 28 C -0.198 4.198 29 C -0.228 4.228 30 H 0.043 0.957 31 H 0.041 0.959 32 H 0.087 0.913 33 H 0.092 0.908 34 H 0.060 0.940 35 H 0.055 0.945 36 H 0.097 0.903 37 H 0.103 0.897 38 H 0.067 0.933 39 H 0.089 0.911 40 H 0.100 0.900 41 H 0.399 0.601 42 H 0.066 0.934 43 H 0.061 0.939 44 H 0.051 0.949 45 H 0.064 0.936 46 H 0.101 0.899 47 H 0.027 0.973 48 H 0.258 0.742 49 H 0.087 0.913 50 H 0.098 0.902 51 H 0.073 0.927 52 H 0.071 0.929 53 H 0.083 0.917 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -15.011 9.761 -14.140 22.816 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 -0.068 4.068 2 O -0.296 6.296 3 C 0.001 3.999 4 H 0.088 0.912 5 C -0.035 4.035 6 O -0.299 6.299 7 C -0.018 4.018 8 C -0.192 4.192 9 C -0.087 4.087 10 H 0.108 0.892 11 C -0.175 4.175 12 C 0.296 3.704 13 O -0.422 6.422 14 N -0.377 5.377 15 C -0.003 4.003 16 C -0.185 4.185 17 C 0.025 3.975 18 N -0.265 5.265 19 C -0.392 4.392 20 H 0.080 0.920 21 C -0.185 4.185 22 N -0.528 5.528 23 Si 0.729 3.271 24 H -0.212 1.212 25 H -0.216 1.216 26 H -0.203 1.203 27 C 0.018 3.982 28 C -0.237 4.237 29 C -0.269 4.269 30 H 0.062 0.938 31 H 0.059 0.941 32 H 0.106 0.894 33 H 0.110 0.890 34 H 0.078 0.922 35 H 0.073 0.927 36 H 0.115 0.885 37 H 0.121 0.879 38 H 0.086 0.914 39 H 0.107 0.893 40 H 0.118 0.882 41 H 0.232 0.768 42 H 0.085 0.915 43 H 0.080 0.920 44 H 0.069 0.931 45 H 0.083 0.917 46 H 0.118 0.882 47 H 0.046 0.954 48 H 0.068 0.932 49 H 0.105 0.895 50 H 0.116 0.884 51 H 0.091 0.909 52 H 0.090 0.910 53 H 0.102 0.898 Dipole moment (debyes) X Y Z Total from point charges -14.086 9.768 -14.833 22.668 hybrid contribution -0.839 -1.154 0.611 1.552 sum -14.925 8.614 -14.223 22.344 Atomic orbital electron populations 1.22842 0.80937 1.02978 1.00064 1.87949 1.19720 1.26979 1.94968 1.22864 0.95368 0.85114 0.96521 0.91169 1.22994 0.98527 0.85904 0.96044 1.87933 1.32478 1.29850 1.79688 1.22675 0.84370 1.02412 0.92370 1.22417 1.03869 0.95271 0.97603 1.21021 0.94809 0.98663 0.94250 0.89235 1.21671 0.95777 1.04261 0.95791 1.20589 0.91336 0.76494 0.82011 1.90651 1.36902 1.50504 1.64135 1.46208 1.10388 1.70299 1.10803 1.21443 0.83776 1.01256 0.93782 1.22446 1.03019 1.01022 0.92029 1.20859 0.92208 0.99654 0.84819 1.43398 1.81918 1.01087 1.00132 1.18931 1.17702 0.82168 1.20417 0.91986 1.25214 0.94720 0.98343 1.00211 1.69885 1.10279 1.33217 1.39462 0.86349 0.77707 0.84894 0.78157 1.21160 1.21615 1.20263 1.21122 0.97539 0.92997 0.86527 1.23077 0.99830 1.02132 0.98686 1.23365 0.92611 1.01135 1.09830 0.93803 0.94050 0.89408 0.88985 0.92183 0.92708 0.88529 0.87866 0.91447 0.89257 0.88159 0.76784 0.91548 0.92044 0.93056 0.91697 0.88189 0.95436 0.93187 0.89521 0.88358 0.90877 0.91046 0.89803 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 18. 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 0.03 0.18 10.82 101.05 1.09 1.27 16 2 O -0.38 -3.52 9.75 -35.23 -0.34 -3.87 16 3 C 0.06 0.53 2.21 -26.59 -0.06 0.47 16 4 H 0.07 0.57 7.79 -51.93 -0.40 0.16 16 5 C 0.04 0.38 6.46 37.20 0.24 0.62 16 6 O -0.38 -3.90 10.77 -35.23 -0.38 -4.28 16 7 C 0.06 0.54 6.84 37.20 0.25 0.80 16 8 C -0.15 -1.55 5.12 -26.59 -0.14 -1.68 16 9 C -0.07 -0.70 1.64 -90.43 -0.15 -0.85 16 10 H 0.09 1.10 7.96 -51.93 -0.41 0.68 16 11 C -0.13 -1.35 5.12 -27.88 -0.14 -1.49 16 12 C 0.51 6.94 7.57 -10.99 -0.08 6.85 16 13 O -0.54 -9.23 13.98 5.56 0.08 -9.15 16 14 N -0.73 -9.74 5.56 -60.30 -0.33 -10.08 16 15 C 0.12 1.97 5.67 -4.04 -0.02 1.95 16 16 C -0.14 -2.60 5.65 -26.73 -0.15 -2.76 16 17 C 0.15 3.34 5.33 -4.04 -0.02 3.31 16 18 N -0.55 -13.09 2.79 -165.66 -0.46 -13.56 16 19 C -0.26 -6.85 8.07 -15.06 -0.12 -6.97 16 20 H 0.06 1.64 7.16 -52.49 -0.38 1.27 16 21 C 0.02 0.42 4.97 -17.43 -0.09 0.34 16 22 N -0.89 -24.74 11.40 55.49 0.63 -24.11 16 23 Si 0.90 21.08 29.61 -169.99 -5.03 16.04 16 24 H -0.28 -6.68 7.11 56.52 0.40 -6.28 16 25 H -0.29 -6.87 7.11 56.52 0.40 -6.47 16 26 H -0.28 -6.41 7.11 56.52 0.40 -6.01 16 27 C 0.13 2.68 6.61 -67.94 -0.45 2.23 16 28 C -0.20 -3.94 9.81 -26.70 -0.26 -4.20 16 29 C -0.23 -4.28 10.08 -26.69 -0.27 -4.55 16 30 H 0.04 0.24 8.09 -51.93 -0.42 -0.18 16 31 H 0.04 0.21 7.93 -51.93 -0.41 -0.20 16 32 H 0.09 0.47 8.14 -51.93 -0.42 0.05 16 33 H 0.09 0.67 7.93 -51.93 -0.41 0.26 16 34 H 0.06 0.54 8.14 -51.93 -0.42 0.12 16 35 H 0.05 0.51 8.14 -51.93 -0.42 0.09 16 36 H 0.10 0.76 8.14 -51.93 -0.42 0.34 16 37 H 0.10 1.24 6.04 -51.93 -0.31 0.93 16 38 H 0.07 0.62 8.14 -51.93 -0.42 0.20 16 39 H 0.09 0.72 8.14 -51.93 -0.42 0.30 16 40 H 0.10 0.95 7.66 -51.93 -0.40 0.56 16 41 H 0.40 4.38 8.47 -40.82 -0.35 4.03 16 42 H 0.07 1.21 8.14 -51.93 -0.42 0.79 16 43 H 0.06 1.01 8.14 -51.93 -0.42 0.59 16 44 H 0.05 0.87 8.14 -51.93 -0.42 0.45 16 45 H 0.06 1.26 8.14 -51.93 -0.42 0.84 16 46 H 0.10 2.53 5.46 -51.93 -0.28 2.25 16 47 H 0.03 0.58 8.04 -51.93 -0.42 0.16 16 48 H 0.26 6.99 8.32 -40.82 -0.34 6.65 16 49 H 0.09 1.68 8.10 -51.93 -0.42 1.26 16 50 H 0.10 2.17 6.95 -51.92 -0.36 1.81 16 51 H 0.07 1.28 8.14 -51.93 -0.42 0.85 16 52 H 0.07 1.16 8.14 -51.93 -0.42 0.74 16 53 H 0.08 1.67 7.98 -51.93 -0.41 1.26 16 LS Contribution 418.74 15.07 6.31 6.31 Total: -1.00 -30.38 418.74 -9.50 -39.87 By element: Atomic # 1 Polarization: 17.08 SS G_CDS: -9.60 Total: 7.48 kcal Atomic # 6 Polarization: -4.30 SS G_CDS: -0.36 Total: -4.67 kcal Atomic # 7 Polarization: -47.58 SS G_CDS: -0.16 Total: -47.75 kcal Atomic # 8 Polarization: -16.65 SS G_CDS: -0.65 Total: -17.29 kcal Atomic # 14 Polarization: 21.08 SS G_CDS: -5.03 Total: 16.04 kcal Total LS contribution 6.31 Total: 6.31 kcal Total: -30.38 -9.50 -39.87 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. ZINC001660691779.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 -55.032 kcal (2) G-P(sol) polarization free energy of solvation -30.377 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -85.410 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.497 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -39.874 kcal (6) G-S(sol) free energy of system = (1) + (5) -94.907 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.02 seconds