Wall clock time and date at job start Sat Apr 11 2020 06:11:58 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 1.53002 * 1 3 3 O 1.42912 * 109.47109 * 2 1 4 4 C 1.42894 * 113.99469 * 179.97438 * 3 2 1 5 5 C 1.53008 * 109.46647 * 179.97438 * 4 3 2 6 6 C 1.53000 * 109.46978 * 180.02562 * 5 4 3 7 7 N 1.46506 * 109.47019 * 175.11866 * 6 5 4 8 8 C 1.36733 * 127.13142 * 84.27989 * 7 6 5 9 9 C 1.50700 * 126.35357 * 0.02562 * 8 7 6 10 10 C 1.52991 * 109.47257 * 89.99622 * 9 8 7 11 11 H 1.08996 * 109.47496 * 305.00179 * 10 9 8 12 12 C 1.53001 * 109.46962 * 185.00170 * 10 9 8 13 13 O 1.42903 * 109.47147 * 65.00582 * 10 9 8 14 14 N 1.30294 * 107.30173 * 179.97438 * 8 7 6 15 15 N 1.28525 * 110.05601 * 359.97438 * 14 8 7 16 16 C 1.31224 * 109.85636 * 359.74807 * 15 14 8 17 17 N 1.38580 * 126.47058 * 180.25286 * 16 15 14 18 18 C 1.46895 * 111.00445 * 260.82114 * 17 16 15 19 19 C 1.46900 * 111.00169 * 24.77957 * 17 16 15 20 20 H 1.09008 * 109.46718 * 299.99469 * 19 17 16 21 21 C 1.52996 * 109.47464 * 59.99266 * 19 17 16 22 22 C 1.50705 * 109.47359 * 179.97438 * 19 17 16 23 23 H 1.07999 * 119.99551 * 359.97438 * 22 19 17 24 24 C 1.37869 * 120.00164 * 179.97438 * 22 19 17 25 25 N 1.31517 * 119.99920 * 359.97438 * 24 22 19 26 26 Si 1.86797 * 120.00141 * 180.02562 * 24 22 19 27 27 H 1.48499 * 109.46854 * 359.97438 * 26 24 22 28 28 H 1.48502 * 109.47293 * 119.99918 * 26 24 22 29 29 H 1.48496 * 109.47317 * 239.99795 * 26 24 22 30 30 H 1.09003 * 109.47011 * 59.99852 * 1 2 3 31 31 H 1.08994 * 109.47458 * 180.02562 * 1 2 3 32 32 H 1.09004 * 109.47107 * 300.00349 * 1 2 3 33 33 H 1.08995 * 109.47530 * 240.00062 * 2 1 3 34 34 H 1.09001 * 109.46809 * 119.99649 * 2 1 3 35 35 H 1.09001 * 109.47536 * 60.00186 * 4 3 2 36 36 H 1.09003 * 109.47750 * 299.99750 * 4 3 2 37 37 H 1.09000 * 109.47254 * 300.00006 * 5 4 3 38 38 H 1.09001 * 109.46985 * 59.99867 * 5 4 3 39 39 H 1.09001 * 109.47092 * 295.12127 * 6 5 4 40 40 H 1.08997 * 109.46940 * 55.12288 * 6 5 4 41 41 H 1.09005 * 109.47188 * 210.00454 * 9 8 7 42 42 H 1.09007 * 109.46835 * 329.99563 * 9 8 7 43 43 H 1.08999 * 109.47105 * 60.00149 * 12 10 9 44 44 H 1.09005 * 109.47220 * 179.97438 * 12 10 9 45 45 H 1.08997 * 109.47502 * 299.99704 * 12 10 9 46 46 H 0.96697 * 114.00077 * 59.99437 * 13 10 9 47 47 H 1.09003 * 109.47195 * 54.82626 * 18 17 16 48 48 H 1.08997 * 109.47453 * 174.83271 * 18 17 16 49 49 H 1.09004 * 109.47000 * 294.83294 * 18 17 16 50 50 H 1.08999 * 109.47308 * 300.00200 * 21 19 17 51 51 H 1.09008 * 109.46987 * 60.00367 * 21 19 17 52 52 H 1.09002 * 109.47565 * 180.02562 * 21 19 17 53 53 H 0.97007 * 120.00068 * 180.02562 * 25 24 22 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 2.0064 1.3474 0.0000 4 6 3.4309 1.4601 0.0006 5 6 3.8254 2.9384 -0.0001 6 6 5.3507 3.0592 -0.0001 7 7 5.7288 4.4696 -0.1183 8 6 5.8296 5.3847 0.8927 9 6 5.5707 5.1317 2.3556 10 6 6.8689 4.6904 3.0343 11 1 7.2779 3.8270 2.5097 12 6 6.5812 4.3140 4.4892 13 8 7.8138 5.7618 2.9975 14 7 6.1921 6.5157 0.3569 15 7 6.3266 6.3784 -0.9139 16 6 6.0601 5.1408 -1.2591 17 7 6.1034 4.6157 -2.5409 18 6 4.7588 4.5509 -3.1289 19 6 7.0151 5.3877 -3.3956 20 1 6.6722 6.4209 -3.4526 21 6 8.4249 5.3503 -2.8023 22 6 7.0364 4.7880 -4.7781 23 1 6.4332 3.9199 -4.9994 24 6 7.8257 5.3475 -5.7602 25 7 8.5599 6.4050 -5.4908 26 14 7.8515 4.6046 -7.4739 27 1 6.9443 3.4298 -7.5177 28 1 7.3976 5.6183 -8.4597 29 1 9.2335 4.1749 -7.8065 30 1 -0.3633 0.5139 -0.8900 31 1 -0.3634 -1.0276 0.0005 32 1 -0.3633 0.5139 0.8900 33 1 1.8934 -0.5138 -0.8899 34 1 1.8933 -0.5138 0.8900 35 1 3.8341 0.9764 -0.8892 36 1 3.8334 0.9767 0.8908 37 1 3.4231 3.4215 -0.8906 38 1 3.4222 3.4225 0.8894 39 1 5.7473 2.6534 0.9305 40 1 5.7592 2.5017 -0.8429 41 1 5.2086 6.0469 2.8240 42 1 4.8206 4.3479 2.4615 43 1 5.8605 3.4968 4.5173 44 1 7.5060 3.9991 4.9727 45 1 6.1722 5.1774 5.0139 46 1 7.5157 6.5647 3.4464 47 1 4.2982 5.5381 -3.0922 48 1 4.8311 4.2219 -4.1656 49 1 4.1494 3.8444 -2.5652 50 1 8.4099 5.7838 -1.8024 51 1 8.7678 4.3171 -2.7453 52 1 9.1013 5.9235 -3.4363 53 1 9.1150 6.7989 -6.1819 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 ZINC001122663032.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 06:11:58 Heat of formation + Delta-G solvation = -16.186074 kcal Electronic energy + Delta-G solvation = -31400.245368 eV Core-core repulsion = 27308.873979 eV Total energy + Delta-G solvation = -4091.371388 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.226 amu Computer time = 1.15 seconds Orbital eigenvalues (eV) -42.47668 -38.46712 -37.90968 -36.95289 -35.72911 -32.97594 -32.65848 -32.13764 -30.66760 -29.91254 -29.20915 -27.13936 -25.91772 -25.24425 -24.25691 -23.11006 -22.43045 -22.03795 -21.65660 -20.24061 -19.42951 -17.34190 -16.76740 -16.63807 -16.43970 -15.95416 -15.87780 -15.81524 -15.17230 -15.06840 -14.60148 -14.54335 -14.20954 -14.04120 -13.60613 -13.28103 -13.12022 -13.02875 -12.66564 -12.47390 -12.40018 -12.33787 -12.07454 -11.97910 -11.86579 -11.79319 -11.32793 -11.22263 -11.07866 -11.03637 -10.90782 -10.88436 -10.64268 -10.35210 -10.20656 -10.14437 -10.05824 -9.90323 -9.85430 -9.67430 -9.12450 -8.55231 -8.41862 -7.45510 -6.02572 -4.09967 2.22843 2.60605 3.28722 3.35954 3.37707 3.39655 3.45365 4.22323 4.34003 4.39908 4.48275 4.59479 4.67421 4.70374 4.76840 4.78917 4.87768 4.92912 4.95463 5.02399 5.03775 5.09053 5.16464 5.28608 5.29738 5.38560 5.44246 5.45185 5.54608 5.60110 5.70826 5.73452 5.78253 5.84615 5.91404 6.06450 6.16427 6.24983 6.46420 6.57721 6.88271 6.95987 6.99428 7.15533 7.26371 7.49312 7.63367 7.73526 7.77090 8.00145 8.27239 8.49105 8.92599 9.40295 9.54624 11.03930 Molecular weight = 340.23amu Principal moments of inertia in cm(-1) A = 0.007383 B = 0.003876 C = 0.002676 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 3791.384384 B = 7222.077486 C =10462.352017 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.152 4.152 2 C 0.057 3.943 3 O -0.389 6.389 4 C 0.068 3.932 5 C -0.136 4.136 6 C 0.116 3.884 7 N -0.479 5.479 8 C 0.156 3.844 9 C -0.057 4.057 10 C 0.108 3.892 11 H 0.094 0.906 12 C -0.184 4.184 13 O -0.549 6.549 14 N -0.276 5.276 15 N -0.315 5.315 16 C 0.386 3.614 17 N -0.464 5.464 18 C 0.039 3.961 19 C 0.228 3.772 20 H 0.025 0.975 21 C -0.132 4.132 22 C -0.515 4.515 23 H 0.065 0.935 24 C 0.063 3.937 25 N -0.883 5.883 26 Si 0.899 3.101 27 H -0.273 1.273 28 H -0.284 1.284 29 H -0.284 1.284 30 H 0.064 0.936 31 H 0.070 0.930 32 H 0.062 0.938 33 H 0.050 0.950 34 H 0.047 0.953 35 H 0.056 0.944 36 H 0.051 0.949 37 H 0.083 0.917 38 H 0.075 0.925 39 H 0.087 0.913 40 H 0.106 0.894 41 H 0.098 0.902 42 H 0.085 0.915 43 H 0.065 0.935 44 H 0.066 0.934 45 H 0.061 0.939 46 H 0.375 0.625 47 H 0.027 0.973 48 H 0.098 0.902 49 H 0.047 0.953 50 H 0.018 0.982 51 H 0.025 0.975 52 H 0.089 0.911 53 H 0.262 0.738 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -11.960 -12.299 17.994 24.862 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 -0.209 4.209 2 C -0.019 4.019 3 O -0.308 6.308 4 C -0.009 4.009 5 C -0.175 4.175 6 C -0.008 4.008 7 N -0.175 5.175 8 C -0.111 4.111 9 C -0.097 4.097 10 C 0.047 3.953 11 H 0.111 0.889 12 C -0.241 4.241 13 O -0.354 6.354 14 N -0.116 5.116 15 N -0.158 5.158 16 C 0.030 3.970 17 N -0.190 5.190 18 C -0.108 4.108 19 C 0.124 3.876 20 H 0.043 0.957 21 C -0.190 4.190 22 C -0.554 4.554 23 H 0.083 0.917 24 C -0.139 4.139 25 N -0.521 5.521 26 Si 0.727 3.273 27 H -0.198 1.198 28 H -0.210 1.210 29 H -0.210 1.210 30 H 0.083 0.917 31 H 0.089 0.911 32 H 0.081 0.919 33 H 0.068 0.932 34 H 0.065 0.935 35 H 0.075 0.925 36 H 0.069 0.931 37 H 0.101 0.899 38 H 0.094 0.906 39 H 0.106 0.894 40 H 0.124 0.876 41 H 0.116 0.884 42 H 0.104 0.896 43 H 0.084 0.916 44 H 0.085 0.915 45 H 0.080 0.920 46 H 0.223 0.777 47 H 0.045 0.955 48 H 0.116 0.884 49 H 0.066 0.934 50 H 0.037 0.963 51 H 0.044 0.956 52 H 0.108 0.892 53 H 0.072 0.928 Dipole moment (debyes) X Y Z Total from point charges -11.029 -11.459 17.426 23.592 hybrid contribution -0.692 -1.022 -0.617 1.380 sum -11.721 -12.480 16.808 23.993 Atomic orbital electron populations 1.21748 0.93721 1.02231 1.03226 1.22465 0.95637 0.83677 1.00144 1.87886 1.20890 1.26562 1.95469 1.22319 0.81558 0.96340 1.00691 1.21922 0.94700 0.96186 1.04643 1.21579 0.94822 0.79615 1.04749 1.46163 1.53697 1.10590 1.07052 1.24154 1.07387 0.87262 0.92347 1.20702 0.98919 1.03687 0.86421 1.21836 0.88264 0.90725 0.94478 0.88856 1.22511 1.02592 1.02342 0.96697 1.86681 1.43743 1.24615 1.80409 1.73924 1.15421 1.20349 1.01878 1.74805 1.22996 1.13081 1.04967 1.23007 0.98332 0.87048 0.88592 1.59149 1.10919 1.52197 0.96758 1.22391 0.87062 0.99575 1.01804 1.19339 0.87473 0.91779 0.88968 0.95700 1.21801 0.99582 0.99434 0.98213 1.21098 1.26836 1.13959 0.93487 0.91659 1.24907 0.95197 0.94914 0.98912 1.69937 1.27456 1.21277 1.33458 0.86429 0.77849 0.79025 0.84002 1.19757 1.21007 1.20983 0.91718 0.91102 0.91910 0.93205 0.93454 0.92534 0.93073 0.89871 0.90619 0.89424 0.87587 0.88401 0.89631 0.91587 0.91500 0.91962 0.77724 0.95452 0.88363 0.93414 0.96286 0.95556 0.89232 0.92798 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 -1.02 10.28 37.16 0.38 -0.64 16 2 C 0.06 0.44 6.66 37.16 0.25 0.69 16 3 O -0.39 -4.06 10.34 -35.23 -0.36 -4.42 16 4 C 0.07 0.61 5.94 37.16 0.22 0.83 16 5 C -0.14 -1.43 5.90 -26.73 -0.16 -1.59 16 6 C 0.12 1.37 5.85 -4.04 -0.02 1.35 16 7 N -0.48 -7.91 2.81 -114.08 -0.32 -8.23 16 8 C 0.16 2.53 7.09 -154.02 -1.09 1.44 16 9 C -0.06 -0.60 5.21 -27.89 -0.15 -0.74 16 10 C 0.11 1.08 3.57 -26.74 -0.10 0.98 16 11 H 0.09 1.03 8.14 -51.93 -0.42 0.60 16 12 C -0.18 -1.23 9.53 37.16 0.35 -0.88 16 13 O -0.55 -7.03 13.09 -35.23 -0.46 -7.49 16 14 N -0.28 -5.75 12.18 32.99 0.40 -5.34 16 15 N -0.32 -7.46 10.28 30.31 0.31 -7.15 16 16 C 0.39 8.17 5.91 -318.88 -1.88 6.29 16 17 N -0.46 -10.24 4.61 -176.08 -0.81 -11.06 16 18 C 0.04 0.75 9.36 60.06 0.56 1.32 16 19 C 0.23 5.99 1.74 -68.86 -0.12 5.87 16 20 H 0.03 0.75 7.89 -51.92 -0.41 0.34 16 21 C -0.13 -3.52 8.81 37.16 0.33 -3.19 16 22 C -0.52 -13.90 7.81 -34.44 -0.27 -14.17 16 23 H 0.07 1.70 6.45 -52.49 -0.34 1.36 16 24 C 0.06 1.74 5.30 -17.82 -0.09 1.64 16 25 N -0.88 -25.55 11.32 55.43 0.63 -24.92 16 26 Si 0.90 21.02 29.54 -169.99 -5.02 16.00 16 27 H -0.27 -6.21 7.11 56.52 0.40 -5.81 16 28 H -0.28 -6.63 7.11 56.52 0.40 -6.23 16 29 H -0.28 -6.64 7.11 56.52 0.40 -6.23 16 30 H 0.06 0.47 8.14 -51.93 -0.42 0.05 16 31 H 0.07 0.35 8.14 -51.93 -0.42 -0.08 16 32 H 0.06 0.43 8.14 -51.93 -0.42 0.00 16 33 H 0.05 0.36 8.14 -51.93 -0.42 -0.06 16 34 H 0.05 0.30 8.14 -51.93 -0.42 -0.12 16 35 H 0.06 0.49 8.14 -51.93 -0.42 0.07 16 36 H 0.05 0.36 8.14 -51.93 -0.42 -0.07 16 37 H 0.08 1.06 6.16 -51.93 -0.32 0.74 16 38 H 0.08 0.76 7.76 -51.93 -0.40 0.36 16 39 H 0.09 0.78 8.07 -51.93 -0.42 0.36 16 40 H 0.11 1.33 8.09 -51.93 -0.42 0.91 16 41 H 0.10 0.92 8.14 -51.93 -0.42 0.50 16 42 H 0.09 0.68 7.59 -51.92 -0.39 0.29 16 43 H 0.07 0.35 8.14 -51.93 -0.42 -0.07 16 44 H 0.07 0.47 8.14 -51.93 -0.42 0.05 16 45 H 0.06 0.35 8.14 -51.93 -0.42 -0.07 16 46 H 0.38 3.46 9.05 45.56 0.41 3.88 16 47 H 0.03 0.55 8.11 -51.93 -0.42 0.13 16 48 H 0.10 1.95 5.96 -51.93 -0.31 1.64 16 49 H 0.05 0.77 6.15 -51.93 -0.32 0.45 16 50 H 0.02 0.49 6.40 -51.93 -0.33 0.16 16 51 H 0.03 0.67 8.14 -51.92 -0.42 0.25 16 52 H 0.09 2.57 6.07 -51.93 -0.32 2.26 16 53 H 0.26 7.18 8.31 -40.82 -0.34 6.84 16 LS Contribution 422.37 15.07 6.37 6.37 Total: -1.00 -34.87 422.37 -9.68 -44.55 By element: Atomic # 1 Polarization: 11.12 SS G_CDS: -8.62 Total: 2.50 kcal Atomic # 6 Polarization: 0.99 SS G_CDS: -1.79 Total: -0.80 kcal Atomic # 7 Polarization: -56.91 SS G_CDS: 0.21 Total: -56.70 kcal Atomic # 8 Polarization: -11.09 SS G_CDS: -0.83 Total: -11.92 kcal Atomic # 14 Polarization: 21.02 SS G_CDS: -5.02 Total: 16.00 kcal Total LS contribution 6.37 Total: 6.37 kcal Total: -34.87 -9.68 -44.55 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. ZINC001122663032.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 28.365 kcal (2) G-P(sol) polarization free energy of solvation -34.868 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -6.503 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.683 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -44.551 kcal (6) G-S(sol) free energy of system = (1) + (5) -16.186 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.15 seconds