Wall clock time and date at job start Tue Mar 31 2020 19:17:59 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 C 2 2 C 1.53007 * 1 3 3 C 1.52995 * 109.47057 * 2 1 4 4 C 1.52998 * 109.46946 * 180.02562 * 3 2 1 5 5 H 1.09001 * 109.49899 * 54.93485 * 4 3 2 6 6 C 1.53045 * 109.49946 * 174.99938 * 4 3 2 7 7 C 1.53032 * 109.54107 * 181.34654 * 6 4 3 8 8 C 1.53199 * 109.31274 * 298.63730 * 7 6 4 9 9 N 1.46921 * 108.77792 * 54.63183 * 8 7 6 10 10 C 1.34778 * 120.62954 * 126.36673 * 9 8 7 11 11 O 1.21354 * 119.99714 * 185.05781 * 10 9 8 12 12 C 1.49451 * 119.99877 * 5.06778 * 10 9 8 13 13 O 1.21347 * 119.99380 * 274.71578 * 12 10 9 14 14 N 1.34777 * 120.00108 * 94.72310 * 12 10 9 15 15 C 1.46928 * 120.62983 * 354.95745 * 14 12 10 16 16 C 1.53187 * 108.77514 * 233.58894 * 15 14 12 17 17 C 1.53045 * 109.31287 * 305.36901 * 16 15 14 18 18 C 1.50706 * 109.46053 * 181.38513 * 17 16 15 19 19 H 1.07998 * 119.99898 * 359.97438 * 18 17 16 20 20 C 1.37879 * 120.00084 * 179.97438 * 18 17 16 21 21 N 1.31515 * 119.99464 * 0.02562 * 20 18 17 22 22 Si 1.86790 * 119.99947 * 179.97438 * 20 18 17 23 23 H 1.48504 * 109.47238 * 0.02562 * 22 20 18 24 24 H 1.48508 * 109.47120 * 120.00059 * 22 20 18 25 25 H 1.48495 * 109.47422 * 240.00430 * 22 20 18 26 26 C 1.53039 * 109.53929 * 61.36652 * 17 16 15 27 27 C 1.46923 * 120.62873 * 174.93869 * 14 12 10 28 28 C 1.46932 * 118.73967 * 306.64707 * 9 8 7 29 29 H 1.08994 * 109.47175 * 59.99609 * 1 2 3 30 30 H 1.09005 * 109.47146 * 180.02562 * 1 2 3 31 31 H 1.09002 * 109.46697 * 299.99425 * 1 2 3 32 32 H 1.09005 * 109.46579 * 239.99817 * 2 1 3 33 33 H 1.08994 * 109.47175 * 120.00391 * 2 1 3 34 34 H 1.08997 * 109.47268 * 60.00413 * 3 2 1 35 35 H 1.09008 * 109.46867 * 300.00210 * 3 2 1 36 36 H 1.09001 * 109.45449 * 61.32423 * 6 4 3 37 37 H 1.08996 * 109.44999 * 301.36379 * 6 4 3 38 38 H 1.09003 * 109.50057 * 178.68566 * 7 6 4 39 39 H 1.08999 * 109.52682 * 58.60212 * 7 6 4 40 40 H 1.09003 * 109.58390 * 294.84274 * 8 7 6 41 41 H 1.08999 * 109.58697 * 174.42711 * 8 7 6 42 42 H 1.09000 * 109.58239 * 113.80100 * 15 14 12 43 43 H 1.08999 * 109.58708 * 353.37804 * 15 14 12 44 44 H 1.08999 * 109.49725 * 185.41838 * 16 15 14 45 45 H 1.09005 * 109.49907 * 65.31530 * 16 15 14 46 46 H 1.08998 * 109.45771 * 301.34028 * 17 16 15 47 47 H 0.97001 * 119.99291 * 179.97438 * 21 20 18 48 48 H 1.08991 * 109.49924 * 58.58399 * 26 17 16 49 49 H 1.08997 * 109.49437 * 178.68589 * 26 17 16 50 50 H 1.09002 * 109.58828 * 6.62281 * 27 14 12 51 51 H 1.08993 * 109.70587 * 246.26831 * 27 14 12 52 52 H 1.08993 * 109.58448 * 173.14060 * 28 9 8 53 53 H 1.08995 * 109.58431 * 293.56925 * 28 9 8 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 1.5301 0.0000 0.0000 3 6 2.0400 1.4425 0.0000 4 6 3.5700 1.4424 -0.0006 5 1 3.9335 0.8522 -0.8419 6 6 4.0808 2.8796 -0.1264 7 6 5.6108 2.8779 -0.1609 8 6 6.1464 2.2870 1.1471 9 7 5.5458 0.9613 1.3482 10 6 6.3226 -0.1189 1.5636 11 8 5.8214 -1.2217 1.6367 12 6 7.8009 0.0416 1.7127 13 8 8.5103 0.0703 0.7286 14 7 8.3462 0.1542 2.9401 15 6 7.4932 0.2318 4.1339 16 6 7.8808 1.4776 4.9367 17 6 9.3810 1.4395 5.2373 18 6 9.7598 2.6466 6.0562 19 1 9.0063 3.3687 6.3340 20 6 11.0682 2.8290 6.4508 21 7 11.9858 1.9499 6.1120 22 14 11.5378 4.3256 7.4651 23 1 10.3311 5.1556 7.7108 24 1 12.1074 3.8845 8.7638 25 1 12.5480 5.1262 6.7279 26 6 10.1666 1.4475 3.9240 27 6 9.8048 0.2012 3.1097 28 6 4.0827 0.8344 1.3037 29 1 -0.3633 0.5139 -0.8899 30 1 -0.3634 -1.0277 0.0005 31 1 -0.3633 0.5138 0.8901 32 1 1.8933 -0.5139 -0.8900 33 1 1.8934 -0.5139 0.8899 34 1 1.6768 1.9563 0.8900 35 1 1.6766 1.9563 -0.8900 36 1 3.7375 3.4630 0.7279 37 1 3.6974 3.3220 -1.0458 38 1 5.9733 3.8996 -0.2740 39 1 5.9556 2.2745 -1.0006 40 1 5.8795 2.9391 1.9789 41 1 7.2306 2.1920 1.0882 42 1 7.6400 -0.6579 4.7463 43 1 6.4481 0.3019 3.8323 44 1 7.3226 1.4955 5.8727 45 1 7.6487 2.3709 4.3568 46 1 9.6165 0.5336 5.7959 47 1 12.9064 2.0784 6.3893 48 1 9.9128 2.3409 3.3537 49 1 11.2351 1.4439 4.1392 50 1 10.2850 0.2513 2.1324 51 1 10.1424 -0.6907 3.6374 52 1 3.8058 -0.2188 1.3479 53 1 3.6441 1.3655 2.1483 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 ZINC001348251528.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 19:17:59 Heat of formation + Delta-G solvation = -97.310870 kcal Electronic energy + Delta-G solvation = -30886.751634 eV Core-core repulsion = 26950.025711 eV Total energy + Delta-G solvation = -3936.725923 eV No. of doubly occupied orbitals = 65 Molecular weight (most abundant/longest-lived isotopes) = 336.220 amu Computer time = 0.93 seconds Orbital eigenvalues (eV) -40.93257 -39.22560 -37.83330 -36.90928 -35.51339 -33.65147 -32.89052 -31.34291 -31.18467 -30.41060 -27.29567 -26.48194 -25.94311 -23.84835 -23.16993 -22.76193 -21.87146 -21.14664 -20.39652 -19.45176 -18.52876 -17.51828 -16.94243 -16.50324 -16.06742 -15.80961 -14.85967 -14.72712 -14.67159 -14.61735 -14.58498 -14.30138 -13.98264 -13.67337 -13.28308 -13.27640 -13.10280 -12.88195 -12.79361 -12.74267 -12.39778 -12.34875 -11.92272 -11.85816 -11.54829 -11.35986 -11.26530 -11.22163 -11.11318 -11.00393 -10.87000 -10.76954 -10.69655 -10.48954 -10.43511 -10.17640 -9.67406 -9.43223 -9.22017 -9.00797 -8.85202 -8.44623 -8.20620 -6.07900 -4.14660 2.22918 2.30385 2.78669 3.24094 3.33066 3.35661 3.48781 4.23423 4.34566 4.36711 4.49645 4.56559 4.73974 4.84636 4.86158 4.93350 5.09678 5.22109 5.23781 5.27444 5.31286 5.35105 5.45189 5.50025 5.53837 5.60464 5.62960 5.67013 5.74114 5.78457 5.79376 5.82255 5.85310 5.91866 5.98116 6.04077 6.12524 6.15540 6.28803 6.29371 6.31897 6.50544 6.65040 6.83936 7.05557 7.07344 7.21040 7.59772 7.62226 7.82046 7.84418 7.97607 8.13721 8.32955 8.88778 9.50932 10.97758 Molecular weight = 336.22amu Principal moments of inertia in cm(-1) A = 0.017258 B = 0.002753 C = 0.002638 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1622.057364 B =10166.858878 C =10609.851607 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 -0.130 4.130 3 C -0.110 4.110 4 C -0.104 4.104 5 H 0.075 0.925 6 C -0.114 4.114 7 C -0.134 4.134 8 C 0.103 3.897 9 N -0.597 5.597 10 C 0.522 3.478 11 O -0.520 6.520 12 C 0.510 3.490 13 O -0.530 6.530 14 N -0.579 5.579 15 C 0.106 3.894 16 C -0.121 4.121 17 C 0.047 3.953 18 C -0.513 4.513 19 H 0.056 0.944 20 C 0.061 3.939 21 N -0.889 5.889 22 Si 0.891 3.109 23 H -0.274 1.274 24 H -0.284 1.284 25 H -0.284 1.284 26 C -0.122 4.122 27 C 0.106 3.894 28 C 0.113 3.887 29 H 0.052 0.948 30 H 0.053 0.947 31 H 0.053 0.947 32 H 0.062 0.938 33 H 0.065 0.935 34 H 0.065 0.935 35 H 0.065 0.935 36 H 0.066 0.934 37 H 0.066 0.934 38 H 0.079 0.921 39 H 0.069 0.931 40 H 0.078 0.922 41 H 0.088 0.912 42 H 0.071 0.929 43 H 0.064 0.936 44 H 0.064 0.936 45 H 0.054 0.946 46 H 0.029 0.971 47 H 0.261 0.739 48 H 0.040 0.960 49 H 0.107 0.893 50 H 0.079 0.921 51 H 0.066 0.934 52 H 0.095 0.905 53 H 0.072 0.928 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -18.309 0.607 -10.991 21.363 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 -0.168 4.168 3 C -0.148 4.148 4 C -0.123 4.123 5 H 0.094 0.906 6 C -0.152 4.152 7 C -0.172 4.172 8 C -0.019 4.019 9 N -0.332 5.332 10 C 0.306 3.694 11 O -0.395 6.395 12 C 0.292 3.708 13 O -0.407 6.407 14 N -0.312 5.312 15 C -0.017 4.017 16 C -0.159 4.159 17 C 0.029 3.971 18 C -0.551 4.551 19 H 0.074 0.926 20 C -0.140 4.140 21 N -0.528 5.528 22 Si 0.719 3.281 23 H -0.198 1.198 24 H -0.211 1.211 25 H -0.210 1.210 26 C -0.160 4.160 27 C -0.015 4.015 28 C -0.009 4.009 29 H 0.071 0.929 30 H 0.072 0.928 31 H 0.072 0.928 32 H 0.080 0.920 33 H 0.084 0.916 34 H 0.084 0.916 35 H 0.084 0.916 36 H 0.085 0.915 37 H 0.085 0.915 38 H 0.098 0.902 39 H 0.088 0.912 40 H 0.096 0.904 41 H 0.106 0.894 42 H 0.089 0.911 43 H 0.083 0.917 44 H 0.083 0.917 45 H 0.072 0.928 46 H 0.047 0.953 47 H 0.071 0.929 48 H 0.059 0.941 49 H 0.125 0.875 50 H 0.098 0.902 51 H 0.084 0.916 52 H 0.114 0.886 53 H 0.091 0.909 Dipole moment (debyes) X Y Z Total from point charges -17.982 -0.020 -11.421 21.303 hybrid contribution 0.356 0.822 0.574 1.064 sum -17.626 0.802 -10.846 20.711 Atomic orbital electron populations 1.21770 0.95904 1.01605 1.01649 1.21613 0.95796 0.96859 1.02497 1.21602 0.93772 0.97065 1.02383 1.21497 0.95542 0.96996 0.98275 0.90611 1.21590 0.95188 0.96042 1.02375 1.21899 0.95949 1.01718 0.97623 1.21867 0.98993 0.82934 0.98153 1.48126 1.06844 1.07937 1.70330 1.20482 0.87736 0.84730 0.76484 1.90758 1.73810 1.24658 1.50259 1.20056 0.88222 0.78095 0.84437 1.90765 1.61462 1.50923 1.37546 1.48310 1.09000 1.68657 1.05227 1.21948 0.92553 1.00848 0.86347 1.22010 1.01052 0.94639 0.98169 1.18667 0.87834 0.97810 0.92819 1.21181 0.93742 1.07648 1.32499 0.92612 1.24968 0.96659 0.96356 0.96006 1.69845 1.01906 1.35146 1.45928 0.86556 0.78485 0.83010 0.80053 1.19849 1.21051 1.21039 1.22031 1.05129 0.92887 0.95944 1.22064 0.76812 1.01113 1.01475 1.21715 0.78480 1.03215 0.97444 0.92907 0.92813 0.92754 0.91965 0.91594 0.91627 0.91582 0.91479 0.91490 0.90195 0.91209 0.90369 0.89352 0.91092 0.91745 0.91721 0.92750 0.95278 0.92925 0.94119 0.87487 0.90232 0.91583 0.88633 0.90936 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 12. 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 -0.97 9.91 37.16 0.37 -0.60 16 2 C -0.13 -0.95 5.69 -26.73 -0.15 -1.10 16 3 C -0.11 -0.75 4.69 -26.73 -0.13 -0.88 16 4 C -0.10 -0.88 2.32 -90.72 -0.21 -1.09 16 5 H 0.08 0.75 8.14 -51.93 -0.42 0.32 16 6 C -0.11 -0.89 5.17 -26.69 -0.14 -1.02 16 7 C -0.13 -1.25 6.08 -26.61 -0.16 -1.41 16 8 C 0.10 1.20 6.33 -3.71 -0.02 1.18 16 9 N -0.60 -7.81 2.98 -173.53 -0.52 -8.32 16 10 C 0.52 8.73 5.49 -11.58 -0.06 8.67 16 11 O -0.52 -9.77 16.51 5.49 0.09 -9.68 16 12 C 0.51 9.44 5.61 -11.58 -0.06 9.37 16 13 O -0.53 -11.01 16.31 5.50 0.09 -10.92 16 14 N -0.58 -10.53 2.97 -173.28 -0.51 -11.05 16 15 C 0.11 1.76 6.32 -3.71 -0.02 1.74 16 16 C -0.12 -2.23 5.30 -26.61 -0.14 -2.37 16 17 C 0.05 1.07 2.06 -91.73 -0.19 0.88 16 18 C -0.51 -13.08 8.56 -34.44 -0.29 -13.38 16 19 H 0.06 1.41 7.74 -52.49 -0.41 1.01 16 20 C 0.06 1.61 5.30 -17.82 -0.09 1.51 16 21 N -0.89 -24.04 11.31 55.43 0.63 -23.41 16 22 Si 0.89 20.36 29.54 -169.99 -5.02 15.34 16 23 H -0.27 -6.17 7.11 56.52 0.40 -5.77 16 24 H -0.28 -6.52 7.11 56.52 0.40 -6.12 16 25 H -0.28 -6.51 7.11 56.52 0.40 -6.11 16 26 C -0.12 -2.66 5.15 -26.61 -0.14 -2.80 16 27 C 0.11 2.05 6.44 -3.71 -0.02 2.03 16 28 C 0.11 1.19 5.31 -3.93 -0.02 1.17 16 29 H 0.05 0.31 8.14 -51.93 -0.42 -0.11 16 30 H 0.05 0.33 8.14 -51.93 -0.42 -0.09 16 31 H 0.05 0.33 8.14 -51.93 -0.42 -0.09 16 32 H 0.06 0.48 8.14 -51.93 -0.42 0.06 16 33 H 0.07 0.53 6.71 -51.93 -0.35 0.18 16 34 H 0.07 0.42 8.14 -51.93 -0.42 0.00 16 35 H 0.07 0.41 8.14 -51.92 -0.42 -0.01 16 36 H 0.07 0.48 8.14 -51.93 -0.42 0.06 16 37 H 0.07 0.45 8.14 -51.93 -0.42 0.03 16 38 H 0.08 0.64 8.14 -51.93 -0.42 0.22 16 39 H 0.07 0.73 8.14 -51.93 -0.42 0.31 16 40 H 0.08 0.82 8.14 -51.93 -0.42 0.39 16 41 H 0.09 1.23 6.23 -51.93 -0.32 0.91 16 42 H 0.07 1.16 8.14 -51.93 -0.42 0.74 16 43 H 0.06 0.98 6.37 -51.93 -0.33 0.65 16 44 H 0.06 1.14 8.14 -51.93 -0.42 0.72 16 45 H 0.05 0.99 8.14 -51.93 -0.42 0.57 16 46 H 0.03 0.72 8.14 -51.93 -0.42 0.30 16 47 H 0.26 6.77 8.31 -40.82 -0.34 6.43 16 48 H 0.04 0.90 8.14 -51.93 -0.42 0.48 16 49 H 0.11 2.64 6.03 -51.93 -0.31 2.32 16 50 H 0.08 1.55 7.00 -51.93 -0.36 1.18 16 51 H 0.07 1.26 8.14 -51.93 -0.42 0.83 16 52 H 0.10 1.12 5.71 -51.93 -0.30 0.82 16 53 H 0.07 0.66 8.14 -51.93 -0.42 0.24 16 LS Contribution 405.47 15.07 6.11 6.11 Total: -1.00 -29.40 405.47 -10.18 -39.59 By element: Atomic # 1 Polarization: 10.01 SS G_CDS: -9.55 Total: 0.46 kcal Atomic # 6 Polarization: 3.39 SS G_CDS: -1.50 Total: 1.89 kcal Atomic # 7 Polarization: -42.38 SS G_CDS: -0.41 Total: -42.78 kcal Atomic # 8 Polarization: -20.78 SS G_CDS: 0.18 Total: -20.60 kcal Atomic # 14 Polarization: 20.36 SS G_CDS: -5.02 Total: 15.34 kcal Total LS contribution 6.11 Total: 6.11 kcal Total: -29.40 -10.18 -39.59 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. ZINC001348251528.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 -57.725 kcal (2) G-P(sol) polarization free energy of solvation -29.405 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -87.129 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -10.181 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -39.586 kcal (6) G-S(sol) free energy of system = (1) + (5) -97.311 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.93 seconds