Wall clock time and date at job start Sat Mar 6 2021 23:27:14 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= 0 * 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 1.50699 * 1 3 3 C 1.37933 * 120.07506 * 2 1 4 4 C 1.38390 * 120.14664 * 180.02562 * 3 2 1 5 5 C 1.50696 * 119.85142 * 179.97438 * 4 3 2 6 6 C 1.38338 * 120.28947 * 359.97438 * 4 3 2 7 7 C 1.50698 * 119.92191 * 179.97438 * 6 4 3 8 8 O 1.42902 * 109.46790 * 75.00503 * 7 6 4 9 9 Si 1.86303 * 109.46950 * 195.00233 * 7 6 4 10 10 C 1.37975 * 120.14653 * 0.25581 * 6 4 3 11 11 C 1.39561 * 119.85012 * 359.47409 * 10 6 4 12 12 C 1.47841 * 120.14067 * 180.25137 * 11 10 6 13 13 O 1.21560 * 120.00249 * 189.27902 * 12 11 10 14 14 N 1.34782 * 120.00564 * 9.27380 * 12 11 10 15 15 C 1.46499 * 120.00281 * 179.97438 * 14 12 11 16 16 C 1.52999 * 109.46956 * 184.87605 * 15 14 12 17 17 C 1.50699 * 112.85283 * 294.86547 * 16 15 14 18 18 C 1.38236 * 120.00147 * 123.57496 * 17 16 15 19 19 C 1.38237 * 120.00120 * 179.77060 * 18 17 16 20 20 C 1.38240 * 119.99760 * 0.47939 * 19 18 17 21 21 C 1.38236 * 119.99703 * 359.79628 * 20 19 18 22 22 C 1.38233 * 120.00400 * 359.95412 * 21 20 19 23 23 C 1.53781 * 113.61324 * 163.66622 * 16 15 14 24 24 C 1.54044 * 86.98858 * 270.84022 * 23 16 15 25 25 H 1.09000 * 113.61911 * 220.02084 * 24 23 16 26 26 O 1.42901 * 113.69186 * 89.12651 * 24 23 16 27 27 C 1.53780 * 87.07927 * 334.56760 * 24 23 16 28 28 H 1.08996 * 109.46963 * 96.89061 * 1 2 3 29 29 H 1.09001 * 109.47176 * 216.89114 * 1 2 3 30 30 H 1.09004 * 109.47023 * 336.88867 * 1 2 3 31 31 H 1.08005 * 119.92699 * 0.02562 * 3 2 1 32 32 H 1.09000 * 109.47273 * 270.02183 * 5 4 3 33 33 H 1.08997 * 109.47529 * 30.02294 * 5 4 3 34 34 H 1.09006 * 109.46753 * 150.02321 * 5 4 3 35 35 H 1.08998 * 109.47835 * 315.00236 * 7 6 4 36 36 H 0.96700 * 114.00381 * 299.99914 * 8 7 6 37 37 H 1.48502 * 109.99883 * 298.68357 * 9 7 6 38 38 H 1.48497 * 110.00214 * 60.00170 * 9 7 6 39 39 H 1.07996 * 120.07208 * 179.72670 * 10 6 4 40 40 H 0.97000 * 119.99403 * 0.02562 * 14 12 11 41 41 H 1.09002 * 109.47330 * 304.88079 * 15 14 12 42 42 H 1.09002 * 109.46937 * 64.88021 * 15 14 12 43 43 H 1.07999 * 119.99882 * 0.02562 * 18 17 16 44 44 H 1.07999 * 120.00127 * 180.25381 * 19 18 17 45 45 H 1.07999 * 120.00018 * 179.76906 * 20 19 18 46 46 H 1.08004 * 119.99350 * 179.97438 * 21 20 19 47 47 H 1.08003 * 120.00012 * 180.02562 * 22 21 20 48 48 H 1.09003 * 113.61415 * 25.44117 * 23 16 15 49 49 H 1.09004 * 113.61009 * 156.33204 * 23 16 15 50 50 H 0.96701 * 114.00097 * 82.46682 * 26 24 23 51 51 H 1.08999 * 113.61787 * 270.88178 * 27 24 23 52 52 H 1.09003 * 113.61677 * 139.97435 * 27 24 23 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 1.5070 0.0000 0.0000 3 6 2.1982 1.1936 0.0000 4 6 3.5821 1.1954 -0.0005 5 6 4.3306 2.5033 -0.0011 6 6 4.2813 0.0017 -0.0005 7 6 5.7883 0.0133 -0.0017 8 8 6.2628 0.3661 1.2992 9 14 6.4219 -1.6788 -0.4561 10 6 3.6021 -1.1993 -0.0053 11 6 2.2065 -1.2080 0.0009 12 6 1.4722 -2.4912 0.0014 13 8 0.2678 -2.5023 -0.1629 14 7 2.1380 -3.6487 0.1840 15 6 1.4102 -4.9201 0.1851 16 6 2.3725 -6.0583 0.5308 17 6 3.4395 -6.2603 -0.5140 18 6 4.7743 -6.2049 -0.1587 19 6 5.7529 -6.3949 -1.1163 20 6 5.3969 -6.6306 -2.4311 21 6 4.0622 -6.6804 -2.7874 22 6 3.0835 -6.4955 -1.8289 23 6 1.6646 -7.3582 0.9478 24 6 1.6998 -6.8189 2.3903 25 1 1.9282 -7.5806 3.1359 26 8 0.5605 -6.0285 2.7358 27 6 2.9212 -5.9867 1.9657 28 1 -0.3633 -0.1233 -1.0202 29 1 -0.3633 -0.8219 0.6169 30 1 -0.3633 0.9452 0.4034 31 1 1.6582 2.1290 0.0004 32 1 4.5103 2.8187 -1.0289 33 1 3.7390 3.2607 0.5131 34 1 5.2839 2.3766 0.5121 35 1 6.1456 0.7423 -0.7289 36 1 5.9711 1.2370 1.6015 37 1 5.9681 -2.6769 0.5454 38 1 5.9352 -2.0575 -1.8070 39 1 4.1492 -2.1304 -0.0098 40 1 3.0990 -3.6398 0.3155 41 1 0.6120 -4.8813 0.9264 42 1 0.9814 -5.0941 -0.8018 43 1 5.0524 -6.0171 0.8678 44 1 6.7957 -6.3556 -0.8379 45 1 6.1616 -6.7754 -3.1799 46 1 3.7841 -6.8641 -3.8148 47 1 2.0407 -6.5348 -2.1073 48 1 0.6580 -7.4570 0.5414 49 1 2.2710 -8.2520 0.8008 50 1 -0.2109 -6.5464 3.0037 51 1 3.8705 -6.5061 2.0966 52 1 2.9284 -4.9787 2.3806 There are 68 doubly filled levels RHF calculation, no. of doubly occupied orbitals= 68 No. of singly occupied orbitals= 1 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=0 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 s_22_13154426_9599494.mol2 52 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Sat Mar 6 2021 23:27:14 Heat of formation + Delta-G solvation = -35.287460 kcal Electronic energy + Delta-G solvation = -34703.936594 eV Core-core repulsion = 30407.551992 eV Total energy + Delta-G solvation = -4296.384602 eV No. of doubly occupied orbitals = 68 and no. of open levels = 1 Molecular weight (most abundant/longest-lived isotopes) = 368.182 amu Computer time = 1.59 seconds Orbital eigenvalues (eV) -42.04568 -41.38479 -39.82249 -39.34625 -37.63750 -36.45724 -35.18859 -34.27914 -33.39723 -32.00346 -31.76900 -29.79082 -28.81225 -27.92820 -27.00214 -25.49672 -24.77312 -23.75261 -23.31545 -22.54155 -22.07693 -21.02456 -19.97059 -18.79689 -18.74018 -18.26662 -17.79031 -17.18331 -16.63410 -16.52146 -16.32852 -16.27265 -16.10076 -15.79944 -15.58539 -15.41536 -15.25749 -14.89200 -14.65994 -14.59529 -14.42343 -14.29062 -14.08060 -13.93315 -13.83545 -13.57743 -13.35709 -13.24562 -13.07886 -12.95095 -12.75828 -12.71301 -12.68939 -12.55110 -12.31449 -12.15939 -11.98882 -11.64830 -11.37475 -11.28999 -11.15116 -10.78735 -10.53051 -10.00594 -9.89827 -9.87803 -9.66785 -9.56383 -4.89297 -0.21641 0.17743 0.36350 0.43327 1.29998 1.61311 1.86851 1.88972 2.14894 2.70932 2.77379 2.97433 3.27827 3.41660 3.47219 3.54468 3.55832 3.61489 3.69411 3.75612 3.76897 3.89276 4.03168 4.06425 4.11880 4.12330 4.17418 4.29487 4.31433 4.45028 4.47207 4.49830 4.50960 4.56849 4.58623 4.65256 4.69573 4.71407 4.84742 4.86945 4.91152 4.94929 4.96492 4.98144 5.06758 5.08762 5.09121 5.16062 5.26740 5.38541 5.47869 5.53107 5.57866 5.58966 5.62453 5.80708 6.02607 6.46379 6.52481 6.60625 7.28133 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.121 4.121 2 C -0.011 4.011 3 C -0.127 4.127 4 C -0.043 4.043 5 C -0.125 4.125 6 C -0.129 4.129 7 C -0.081 4.081 8 O -0.533 6.533 9 Si 0.738 3.262 10 C -0.078 4.078 11 C -0.140 4.140 12 C 0.559 3.441 13 O -0.526 6.526 14 N -0.721 5.721 15 C 0.144 3.856 16 C -0.053 4.053 17 C -0.072 4.072 18 C -0.124 4.124 19 C -0.117 4.117 20 C -0.122 4.122 21 C -0.116 4.116 22 C -0.110 4.110 23 C -0.148 4.148 24 C 0.081 3.919 25 H 0.073 0.927 26 O -0.546 6.546 27 C -0.130 4.130 28 H 0.079 0.921 29 H 0.094 0.906 30 H 0.060 0.940 31 H 0.135 0.865 32 H 0.080 0.920 33 H 0.076 0.924 34 H 0.069 0.931 35 H 0.076 0.924 36 H 0.362 0.638 37 H -0.249 1.249 38 H -0.246 1.246 39 H 0.122 0.878 40 H 0.396 0.604 41 H 0.100 0.900 42 H 0.067 0.933 43 H 0.125 0.875 44 H 0.125 0.875 45 H 0.123 0.877 46 H 0.123 0.877 47 H 0.120 0.880 48 H 0.080 0.920 49 H 0.096 0.904 50 H 0.383 0.617 51 H 0.103 0.897 52 H 0.081 0.919 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 4.016 -0.586 0.123 4.060 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 -0.177 4.177 2 C -0.012 4.012 3 C -0.145 4.145 4 C -0.043 4.043 5 C -0.181 4.181 6 C -0.129 4.129 7 C -0.190 4.190 8 O -0.340 6.340 9 Si 0.636 3.364 10 C -0.097 4.097 11 C -0.143 4.143 12 C 0.347 3.653 13 O -0.404 6.404 14 N -0.373 5.373 15 C 0.021 3.979 16 C -0.054 4.054 17 C -0.072 4.072 18 C -0.142 4.142 19 C -0.135 4.135 20 C -0.140 4.140 21 C -0.134 4.134 22 C -0.128 4.128 23 C -0.187 4.187 24 C 0.022 3.978 25 H 0.091 0.909 26 O -0.352 6.352 27 C -0.167 4.167 28 H 0.097 0.903 29 H 0.113 0.887 30 H 0.079 0.921 31 H 0.152 0.848 32 H 0.099 0.901 33 H 0.095 0.905 34 H 0.087 0.913 35 H 0.094 0.906 36 H 0.211 0.789 37 H -0.174 1.174 38 H -0.171 1.171 39 H 0.139 0.861 40 H 0.231 0.769 41 H 0.118 0.882 42 H 0.085 0.915 43 H 0.142 0.858 44 H 0.143 0.857 45 H 0.141 0.859 46 H 0.141 0.859 47 H 0.138 0.862 48 H 0.099 0.901 49 H 0.115 0.885 50 H 0.231 0.769 51 H 0.121 0.879 52 H 0.100 0.900 Dipole moment (debyes) X Y Z Total from point charges 3.593 -1.526 -0.395 3.924 hybrid contribution -1.034 0.610 0.209 1.218 sum 2.560 -0.916 -0.186 2.725 Atomic orbital electron populations 1.21082 0.89487 1.03203 1.03907 1.20096 0.97128 0.91171 0.92851 1.21013 0.93221 0.97887 1.02352 1.19981 0.93768 0.94799 0.95793 1.20973 1.00011 0.93808 1.03299 1.20017 0.96140 0.92799 1.03952 1.25273 0.91162 1.14052 0.88494 1.86806 1.75270 1.39982 1.31955 0.93189 0.91435 0.72414 0.79376 1.21063 0.93360 0.97328 0.97904 1.19696 0.92923 0.93563 1.08081 1.18152 0.86996 0.83421 0.76712 1.90751 1.13729 1.86952 1.48987 1.45815 1.11414 1.06112 1.73928 1.21270 0.93948 0.80049 1.02646 1.20943 0.94786 0.96455 0.93177 1.19605 0.93622 1.00030 0.93966 1.21154 0.92248 1.00990 0.99829 1.21206 0.99532 0.99553 0.93256 1.21227 0.96349 0.99915 0.96468 1.21196 0.93054 0.99638 0.99513 1.20988 0.99605 0.99758 0.92475 1.23707 1.01635 0.96250 0.97070 1.22683 0.87428 0.93232 0.94502 0.90902 1.86495 1.23371 1.36558 1.88799 1.23281 0.97173 1.02155 0.94133 0.90294 0.88721 0.92072 0.84755 0.90108 0.90469 0.91263 0.90554 0.78853 1.17409 1.17058 0.86102 0.76934 0.88182 0.91468 0.85759 0.85749 0.85900 0.85942 0.86169 0.90087 0.88513 0.76893 0.87879 0.90009 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 -0.12 -0.37 8.68 36.01 0.31 -0.06 16 2 C -0.01 -0.04 5.91 -104.23 -0.62 -0.66 16 3 C -0.13 -0.21 9.31 -39.64 -0.37 -0.58 16 4 C -0.04 -0.05 5.87 -104.53 -0.61 -0.66 16 5 C -0.12 0.23 9.27 36.00 0.33 0.57 16 6 C -0.13 -0.26 5.26 -104.68 -0.55 -0.81 16 7 C -0.08 -0.03 1.96 36.00 0.07 0.04 16 8 O -0.53 -0.40 12.64 -35.23 -0.45 -0.85 16 9 Si 0.74 0.01 30.39 -169.99 -5.17 -5.15 16 10 C -0.08 -0.25 8.11 -39.18 -0.32 -0.57 16 11 C -0.14 -0.59 5.87 -104.97 -0.62 -1.21 16 12 C 0.56 2.85 7.67 -12.33 -0.09 2.76 16 13 O -0.53 -3.86 13.43 5.31 0.07 -3.79 16 14 N -0.72 -2.19 5.14 -61.25 -0.31 -2.51 16 15 C 0.14 0.31 4.74 -4.04 -0.02 0.29 16 16 C -0.05 -0.01 0.67 -154.85 -0.10 -0.11 16 17 C -0.07 -0.05 4.58 -104.62 -0.48 -0.53 16 18 C -0.12 -0.05 9.13 -39.58 -0.36 -0.41 16 19 C -0.12 -0.04 10.05 -39.58 -0.40 -0.43 16 20 C -0.12 -0.06 10.05 -39.58 -0.40 -0.46 16 21 C -0.12 -0.10 10.05 -39.58 -0.40 -0.50 16 22 C -0.11 -0.12 9.29 -39.58 -0.37 -0.49 16 23 C -0.15 0.17 7.08 -25.78 -0.18 -0.02 16 24 C 0.08 -0.07 5.28 -25.78 -0.14 -0.21 16 25 H 0.07 -0.15 8.14 -51.93 -0.42 -0.58 16 26 O -0.55 -0.13 11.52 -35.23 -0.41 -0.54 16 27 C -0.13 0.04 6.25 -25.92 -0.16 -0.12 16 28 H 0.08 0.26 8.14 -51.93 -0.42 -0.16 16 29 H 0.09 0.46 5.97 -51.93 -0.31 0.15 16 30 H 0.06 0.07 8.04 -51.93 -0.42 -0.35 16 31 H 0.13 -0.06 8.05 -52.48 -0.42 -0.48 16 32 H 0.08 -0.19 8.14 -51.93 -0.42 -0.61 16 33 H 0.08 -0.20 8.08 -51.93 -0.42 -0.62 16 34 H 0.07 -0.21 4.96 -51.93 -0.26 -0.46 16 35 H 0.08 -0.10 7.38 -51.93 -0.38 -0.48 16 36 H 0.36 -0.65 6.84 45.56 0.31 -0.34 16 37 H -0.25 -0.43 6.81 56.52 0.39 -0.05 16 38 H -0.25 -0.46 7.11 56.52 0.40 -0.05 16 39 H 0.12 0.31 3.38 -52.49 -0.18 0.13 16 40 H 0.40 0.85 6.35 -40.82 -0.26 0.59 16 41 H 0.10 0.35 5.94 -51.93 -0.31 0.04 16 42 H 0.07 0.18 7.34 -51.93 -0.38 -0.20 16 43 H 0.12 -0.12 5.99 -52.49 -0.31 -0.43 16 44 H 0.12 -0.19 8.06 -52.49 -0.42 -0.61 16 45 H 0.12 -0.14 8.06 -52.49 -0.42 -0.56 16 46 H 0.12 -0.06 8.06 -52.48 -0.42 -0.49 16 47 H 0.12 0.06 7.52 -52.48 -0.39 -0.34 16 48 H 0.08 -0.10 8.10 -51.93 -0.42 -0.52 16 49 H 0.10 -0.15 8.09 -51.93 -0.42 -0.57 16 50 H 0.38 -1.36 9.12 45.56 0.42 -0.95 16 51 H 0.10 -0.17 6.28 -51.93 -0.33 -0.50 16 52 H 0.08 0.09 7.95 -51.93 -0.41 -0.32 16 LS Contribution 406.08 15.07 6.12 6.12 Total: 0.00 -7.39 406.08 -12.26 -19.64 By element: Atomic # 1 Polarization: -2.10 SS G_CDS: -6.65 Total: -8.75 kcal Atomic # 6 Polarization: 1.29 SS G_CDS: -5.47 Total: -4.17 kcal Atomic # 7 Polarization: -2.19 SS G_CDS: -0.31 Total: -2.51 kcal Atomic # 8 Polarization: -4.40 SS G_CDS: -0.78 Total: -5.18 kcal Atomic # 14 Polarization: 0.01 SS G_CDS: -5.17 Total: -5.15 kcal Total LS contribution 6.12 Total: 6.12 kcal Total: -7.39 -12.26 -19.64 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. s_22_13154426_9599494.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 -15.644 kcal (2) G-P(sol) polarization free energy of solvation -7.388 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -23.032 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -12.256 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -19.643 kcal (6) G-S(sol) free energy of system = (1) + (5) -35.287 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.59 seconds