Wall clock time and date at job start Tue Mar 31 2020 05:09:59 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 1.31518 * 1 3 3 Si 1.86796 * 120.00154 * 2 1 4 4 H 1.48496 * 109.47339 * 270.00309 * 3 2 1 5 5 H 1.48503 * 109.47263 * 30.00714 * 3 2 1 6 6 H 1.48506 * 109.46939 * 150.00059 * 3 2 1 7 7 C 1.37877 * 119.99487 * 180.02562 * 2 1 3 8 8 H 1.08000 * 119.99458 * 179.97438 * 7 2 1 9 9 C 1.50691 * 120.00362 * 0.02562 * 7 2 1 10 10 C 1.53006 * 109.47366 * 179.97438 * 9 7 2 11 11 O 1.42899 * 109.47326 * 179.97438 * 10 9 7 12 12 C 1.35894 * 117.00224 * 179.97438 * 11 10 9 13 13 C 1.38756 * 120.05306 * 0.02562 * 12 11 10 14 14 C 1.38125 * 119.94605 * 180.02562 * 13 12 11 15 15 C 1.38290 * 120.05055 * 359.96856 * 14 13 12 16 16 C 1.38246 * 120.11763 * 0.04834 * 15 14 13 17 17 C 1.50693 * 119.97752 * 179.97438 * 16 15 14 18 18 N 1.46901 * 109.46934 * 89.99943 * 17 16 15 19 19 C 1.46904 * 110.99657 * 180.02562 * 18 17 16 20 20 C 1.53007 * 109.47018 * 180.02562 * 19 18 17 21 21 H 1.08998 * 109.71260 * 54.39397 * 20 19 18 22 22 C 1.53389 * 109.71582 * 174.99959 * 20 19 18 23 23 C 1.53154 * 109.23773 * 168.54873 * 22 20 19 24 24 C 1.53253 * 109.49767 * 290.51392 * 23 22 20 25 25 N 1.46473 * 108.79993 * 50.36606 * 24 23 22 26 26 C 1.36305 * 127.78064 * 162.87474 * 25 24 23 27 27 C 1.34858 * 106.69269 * 180.02562 * 26 25 24 28 28 N 1.34289 * 108.06931 * 0.25190 * 27 26 25 29 29 C 1.30099 * 109.21053 * 359.52525 * 28 27 26 30 30 C 1.38164 * 120.04998 * 0.23355 * 16 15 14 31 31 H 0.97001 * 119.99843 * 359.97438 * 1 2 3 32 32 H 1.09001 * 109.47274 * 60.00005 * 9 7 2 33 33 H 1.09001 * 109.47398 * 299.99727 * 9 7 2 34 34 H 1.09001 * 109.46870 * 59.99819 * 10 9 7 35 35 H 1.09001 * 109.46689 * 300.00223 * 10 9 7 36 36 H 1.08004 * 120.03061 * 0.03392 * 13 12 11 37 37 H 1.07994 * 119.97528 * 179.97438 * 14 13 12 38 38 H 1.08002 * 119.94318 * 180.02562 * 15 14 13 39 39 H 1.09001 * 109.47051 * 330.00435 * 17 16 15 40 40 H 1.08997 * 109.47248 * 210.00316 * 17 16 15 41 41 H 1.00899 * 110.99957 * 56.05260 * 18 17 16 42 42 H 1.08997 * 109.47514 * 60.00103 * 19 18 17 43 43 H 1.08998 * 109.47442 * 299.99967 * 19 18 17 44 44 H 1.09002 * 109.51380 * 48.61994 * 22 20 19 45 45 H 1.09002 * 109.55345 * 288.49994 * 22 20 19 46 46 H 1.09007 * 109.46631 * 170.50589 * 23 22 20 47 47 H 1.09003 * 109.46591 * 50.52496 * 23 22 20 48 48 H 1.08996 * 109.58693 * 290.57163 * 24 23 22 49 49 H 1.09003 * 109.58288 * 170.15536 * 24 23 22 50 50 H 1.08009 * 126.65528 * 0.06252 * 26 25 24 51 51 H 1.08002 * 125.96315 * 179.97438 * 27 26 25 52 52 H 1.08000 * 120.02792 * 179.74265 * 30 16 15 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 1.3152 0.0000 0.0000 3 14 2.2492 1.6177 0.0000 4 1 2.4967 2.0464 -1.4000 5 1 1.4468 2.6526 0.7002 6 1 3.5468 1.4400 0.7001 7 6 2.0045 -1.1941 -0.0005 8 1 3.0845 -1.1941 -0.0010 9 6 1.2510 -2.4991 -0.0017 10 6 2.2452 -3.6621 -0.0027 11 8 1.5306 -4.8997 -0.0032 12 6 2.2707 -6.0394 -0.0047 13 6 3.6564 -5.9682 -0.0051 14 6 4.4064 -7.1281 -0.0072 15 6 3.7773 -8.3596 -0.0082 16 6 2.3968 -8.4333 -0.0081 17 6 1.7146 -9.7769 -0.0098 18 7 1.4930 -10.2153 1.3747 19 6 0.8287 -11.5250 1.4123 20 6 0.6149 -11.9468 2.8674 21 1 0.0765 -11.1641 3.4018 22 6 -0.1886 -13.2526 2.9149 23 6 -0.1530 -13.8155 4.3388 24 6 1.2618 -14.3109 4.6578 25 7 2.2186 -13.2531 4.3247 26 6 3.5134 -13.1388 4.7350 27 6 3.9977 -12.0096 4.1790 28 7 3.0170 -11.4492 3.4527 29 6 1.9506 -12.1905 3.5290 30 6 1.6422 -7.2760 -0.0119 31 1 -0.4850 0.8401 0.0004 32 1 0.6246 -2.5563 -0.8920 33 1 0.6240 -2.5575 0.8880 34 1 2.8718 -3.6052 0.8873 35 1 2.8718 -3.6036 -0.8927 36 1 4.1482 -5.0066 -0.0037 37 1 5.4850 -7.0732 -0.0079 38 1 4.3655 -9.2654 -0.0093 39 1 2.3436 -10.5032 -0.5245 40 1 0.7565 -9.6973 -0.5234 41 1 0.9663 -9.5274 1.8919 42 1 1.4519 -12.2631 0.9075 43 1 -0.1355 -11.4579 0.9084 44 1 0.2500 -13.9752 2.2267 45 1 -1.2213 -13.0562 2.6269 46 1 -0.8552 -14.6454 4.4190 47 1 -0.4322 -13.0340 5.0454 48 1 1.4796 -15.2000 4.0661 49 1 1.3350 -14.5487 5.7190 50 1 4.0480 -13.8206 5.3799 51 1 4.9981 -11.6213 4.3007 52 1 0.5637 -7.3340 -0.0161 RHF calculation, no. of doubly occupied orbitals= 67 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 ZINC000089780701.mol2 52 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 05:09:59 Heat of formation + Delta-G solvation = 37.086411 kcal Electronic energy + Delta-G solvation = -30044.023353 eV Core-core repulsion = 26009.014672 eV Total energy + Delta-G solvation = -4035.008681 eV No. of doubly occupied orbitals = 67 Molecular weight (most abundant/longest-lived isotopes) = 355.200 amu Computer time = 1.29 seconds Orbital eigenvalues (eV) -42.44053 -39.68159 -37.84702 -37.17825 -35.86609 -33.58409 -33.29527 -31.22997 -30.70138 -29.88080 -29.03533 -28.79284 -26.53006 -25.04655 -24.23916 -22.69293 -22.42303 -22.07556 -21.57044 -21.32655 -20.05258 -19.27788 -17.60859 -17.25986 -16.26086 -16.17342 -15.85259 -15.51306 -15.39335 -15.19838 -15.11833 -14.96657 -14.69861 -14.44310 -14.21864 -14.11421 -13.84627 -13.44371 -13.13219 -12.98924 -12.71601 -12.58394 -12.40554 -12.27421 -11.95492 -11.89529 -11.64406 -11.54962 -11.36469 -11.24177 -11.16566 -11.08264 -10.82023 -10.65088 -10.35250 -9.80199 -9.77887 -9.66928 -9.60982 -9.25847 -8.64903 -8.47963 -8.41530 -8.25159 -7.69206 -6.07181 -4.11464 1.58768 1.85745 1.90990 2.54242 3.15970 3.29936 3.35724 3.38945 3.78858 3.92905 3.94970 4.08510 4.12826 4.15208 4.43578 4.47183 4.63732 4.72220 4.85084 4.87159 4.92820 5.00474 5.06616 5.12209 5.16635 5.25160 5.29216 5.34111 5.34535 5.42213 5.45394 5.47791 5.62112 5.64534 5.66687 5.76340 5.79579 5.96349 6.10800 6.16145 6.16751 6.32834 6.65530 6.68687 6.70389 6.84082 6.85732 6.94694 7.04952 7.14418 7.36845 7.55904 7.68706 7.86578 8.14811 8.15490 8.28388 8.94171 9.52612 11.04426 Molecular weight = 355.20amu Principal moments of inertia in cm(-1) A = 0.016815 B = 0.001587 C = 0.001565 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1664.804085 B =17638.016975 C =17885.425922 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 N -0.890 5.890 2 C 0.060 3.940 3 Si 0.899 3.101 4 H -0.279 1.279 5 H -0.285 1.285 6 H -0.273 1.273 7 C -0.526 4.526 8 H 0.058 0.942 9 C 0.025 3.975 10 C 0.066 3.934 11 O -0.318 6.318 12 C 0.142 3.858 13 C -0.211 4.211 14 C -0.083 4.083 15 C -0.141 4.141 16 C -0.046 4.046 17 C 0.106 3.894 18 N -0.660 5.660 19 C 0.077 3.923 20 C 0.000 4.000 21 H 0.093 0.907 22 C -0.121 4.121 23 C -0.134 4.134 24 C 0.104 3.896 25 N -0.464 5.464 26 C -0.065 4.065 27 C -0.034 4.034 28 N -0.440 5.440 29 C 0.212 3.788 30 C -0.157 4.157 31 H 0.263 0.737 32 H 0.027 0.973 33 H 0.027 0.973 34 H 0.050 0.950 35 H 0.050 0.950 36 H 0.128 0.872 37 H 0.119 0.881 38 H 0.118 0.882 39 H 0.077 0.923 40 H 0.034 0.966 41 H 0.343 0.657 42 H 0.071 0.929 43 H 0.035 0.965 44 H 0.072 0.928 45 H 0.083 0.917 46 H 0.089 0.911 47 H 0.076 0.924 48 H 0.081 0.919 49 H 0.087 0.913 50 H 0.169 0.831 51 H 0.165 0.835 52 H 0.122 0.878 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 1.669 -34.751 7.505 35.591 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 -0.528 5.528 2 C -0.142 4.142 3 Si 0.726 3.274 4 H -0.205 1.205 5 H -0.211 1.211 6 H -0.198 1.198 7 C -0.564 4.564 8 H 0.076 0.924 9 C -0.012 4.012 10 C -0.008 4.008 11 O -0.231 6.231 12 C 0.096 3.904 13 C -0.230 4.230 14 C -0.101 4.101 15 C -0.160 4.160 16 C -0.047 4.047 17 C -0.022 4.022 18 N -0.291 5.291 19 C -0.054 4.054 20 C -0.021 4.021 21 H 0.111 0.889 22 C -0.160 4.160 23 C -0.172 4.172 24 C -0.019 4.019 25 N -0.148 5.148 26 C -0.198 4.198 27 C -0.183 4.183 28 N -0.156 5.156 29 C -0.050 4.050 30 C -0.176 4.176 31 H 0.072 0.928 32 H 0.045 0.955 33 H 0.046 0.954 34 H 0.068 0.932 35 H 0.068 0.932 36 H 0.145 0.855 37 H 0.137 0.863 38 H 0.136 0.864 39 H 0.095 0.905 40 H 0.052 0.948 41 H 0.161 0.839 42 H 0.090 0.910 43 H 0.053 0.947 44 H 0.090 0.910 45 H 0.101 0.899 46 H 0.108 0.892 47 H 0.095 0.905 48 H 0.099 0.901 49 H 0.105 0.895 50 H 0.186 0.814 51 H 0.183 0.817 52 H 0.140 0.860 Dipole moment (debyes) X Y Z Total from point charges 1.915 -34.247 7.184 35.045 hybrid contribution -0.045 0.448 0.421 0.617 sum 1.870 -33.799 7.605 34.695 Atomic orbital electron populations 1.69981 1.06092 1.26906 1.49825 1.24992 0.94909 0.99370 0.94953 0.86485 0.79754 0.82941 0.78194 1.20514 1.21068 1.19758 1.20985 0.93073 0.90251 1.52075 0.92358 1.19121 0.94196 0.89070 0.98812 1.23298 0.97017 0.80901 0.99609 1.86152 1.36562 1.13200 1.87187 1.19121 0.90104 0.87370 0.93836 1.21365 0.93210 0.99758 1.08661 1.20882 0.99332 0.92004 0.97860 1.20744 0.93761 0.97271 1.04255 1.19348 0.93589 0.93217 0.98536 1.20790 0.98233 0.93327 0.89898 1.60344 1.53213 1.03274 1.12284 1.21816 0.96842 0.92917 0.93778 1.19825 0.88460 0.97877 0.95892 0.88882 1.21717 1.01184 0.96452 0.96631 1.21882 0.94984 1.02336 0.97981 1.21917 0.88448 0.89607 1.01924 1.45471 1.10622 1.20779 1.37939 1.22490 0.85579 1.03595 1.08129 1.22497 0.99885 0.94924 1.01018 1.70346 0.98336 1.27390 1.19548 1.23068 0.97581 0.86641 0.97717 1.20244 0.99833 0.89553 1.08004 0.92754 0.95453 0.95412 0.93185 0.93222 0.85458 0.86345 0.86417 0.90480 0.94760 0.83853 0.91006 0.94661 0.90971 0.89850 0.89225 0.90521 0.90082 0.89500 0.81414 0.81726 0.85964 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 -0.89 -26.80 13.29 55.43 0.74 -26.06 16 2 C 0.06 1.72 5.46 -17.82 -0.10 1.62 16 3 Si 0.90 21.59 29.54 -169.99 -5.02 16.57 16 4 H -0.28 -6.59 7.11 56.52 0.40 -6.19 16 5 H -0.28 -6.76 7.11 56.52 0.40 -6.36 16 6 H -0.27 -6.40 7.11 56.52 0.40 -6.00 16 7 C -0.53 -14.95 9.11 -34.44 -0.31 -15.26 16 8 H 0.06 1.58 7.74 -52.49 -0.41 1.18 16 9 C 0.03 0.68 5.34 -27.88 -0.15 0.53 16 10 C 0.07 1.47 4.68 37.16 0.17 1.64 16 11 O -0.32 -6.83 10.14 -19.41 -0.20 -7.03 16 12 C 0.14 2.63 6.69 -39.21 -0.26 2.37 16 13 C -0.21 -3.57 9.04 -39.43 -0.36 -3.92 16 14 C -0.08 -1.21 10.04 -39.60 -0.40 -1.60 16 15 C -0.14 -1.98 9.70 -39.56 -0.38 -2.36 16 16 C -0.05 -0.64 5.39 -104.65 -0.56 -1.21 16 17 C 0.11 1.17 5.81 -4.98 -0.03 1.14 16 18 N -0.66 -7.11 5.55 -115.06 -0.64 -7.75 16 19 C 0.08 0.63 5.05 -3.82 -0.02 0.61 16 20 C 0.00 0.00 2.72 -91.40 -0.25 -0.25 16 21 H 0.09 0.72 8.14 -51.93 -0.42 0.30 16 22 C -0.12 -0.54 5.28 -26.45 -0.14 -0.68 16 23 C -0.13 -0.47 5.94 -26.52 -0.16 -0.63 16 24 C 0.10 0.46 6.98 -3.93 -0.03 0.44 16 25 N -0.46 -3.87 3.13 -113.76 -0.36 -4.23 16 26 C -0.07 -0.57 11.64 -16.76 -0.20 -0.76 16 27 C -0.03 -0.38 11.87 -17.68 -0.21 -0.59 16 28 N -0.44 -5.74 10.34 -10.62 -0.11 -5.85 16 29 C 0.21 2.19 6.95 -155.23 -1.08 1.11 16 30 C -0.16 -2.50 9.64 -39.43 -0.38 -2.88 16 31 H 0.26 7.42 8.31 -40.82 -0.34 7.08 16 32 H 0.03 0.77 8.14 -51.93 -0.42 0.35 16 33 H 0.03 0.79 8.14 -51.93 -0.42 0.37 16 34 H 0.05 1.07 7.66 -51.93 -0.40 0.67 16 35 H 0.05 1.06 7.66 -51.93 -0.40 0.66 16 36 H 0.13 2.12 6.30 -52.48 -0.33 1.79 16 37 H 0.12 1.44 8.06 -52.49 -0.42 1.02 16 38 H 0.12 1.48 8.06 -52.49 -0.42 1.05 16 39 H 0.08 0.81 8.08 -51.93 -0.42 0.39 16 40 H 0.03 0.35 8.08 -51.93 -0.42 -0.07 16 41 H 0.34 3.84 8.72 -39.29 -0.34 3.49 16 42 H 0.07 0.64 8.14 -51.93 -0.42 0.21 16 43 H 0.04 0.24 8.14 -51.93 -0.42 -0.18 16 44 H 0.07 0.33 8.09 -51.93 -0.42 -0.09 16 45 H 0.08 0.27 8.14 -51.93 -0.42 -0.16 16 46 H 0.09 0.13 8.14 -51.93 -0.42 -0.29 16 47 H 0.08 0.33 8.12 -51.93 -0.42 -0.09 16 48 H 0.08 0.28 8.14 -51.93 -0.42 -0.15 16 49 H 0.09 0.27 8.14 -51.93 -0.42 -0.15 16 50 H 0.17 0.93 8.06 -52.48 -0.42 0.51 16 51 H 0.17 1.55 8.06 -52.49 -0.42 1.13 16 52 H 0.12 1.82 8.06 -52.49 -0.42 1.40 16 LS Contribution 422.99 15.07 6.37 6.37 Total: -1.00 -34.16 422.99 -12.66 -46.82 By element: Atomic # 1 Polarization: 10.46 SS G_CDS: -8.61 Total: 1.85 kcal Atomic # 6 Polarization: -15.86 SS G_CDS: -4.84 Total: -20.69 kcal Atomic # 7 Polarization: -43.52 SS G_CDS: -0.37 Total: -43.89 kcal Atomic # 8 Polarization: -6.83 SS G_CDS: -0.20 Total: -7.03 kcal Atomic # 14 Polarization: 21.59 SS G_CDS: -5.02 Total: 16.57 kcal Total LS contribution 6.37 Total: 6.37 kcal Total: -34.16 -12.66 -46.82 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. ZINC000089780701.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 83.906 kcal (2) G-P(sol) polarization free energy of solvation -34.160 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 49.746 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -12.659 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -46.820 kcal (6) G-S(sol) free energy of system = (1) + (5) 37.086 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.29 seconds