Wall clock time and date at job start Sat Apr 11 2020 06:12:06 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 N 1.46903 * 109.46615 * 2 1 4 4 C 1.46901 * 111.00030 * 293.94646 * 3 2 1 5 5 C 1.46904 * 110.99171 * 169.99940 * 3 2 1 6 6 C 1.53006 * 109.46738 * 189.99973 * 5 3 2 7 7 C 1.50696 * 109.47119 * 180.02562 * 6 5 3 8 8 O 1.21278 * 120.00098 * 359.97438 * 7 6 5 9 9 N 1.34776 * 119.99810 * 180.02562 * 7 6 5 10 10 C 1.46506 * 119.99826 * 179.97438 * 9 7 6 11 11 C 1.53119 * 109.51978 * 204.99618 * 10 9 7 12 12 C 1.53039 * 109.27478 * 182.37658 * 11 10 9 13 13 N 1.46852 * 109.52336 * 59.18093 * 12 11 10 14 14 C 1.46900 * 111.00118 * 174.15791 * 13 12 11 15 15 C 1.50697 * 109.47237 * 293.61170 * 14 13 12 16 16 O 1.21294 * 119.99957 * 353.73088 * 15 14 13 17 17 N 1.34777 * 120.00218 * 173.72893 * 15 14 13 18 18 C 1.37099 * 120.00043 * 179.97438 * 17 15 14 19 19 H 1.07997 * 119.99929 * 0.02562 * 18 17 15 20 20 C 1.38955 * 119.99738 * 180.02562 * 18 17 15 21 21 N 1.31412 * 120.00132 * 0.02562 * 20 18 17 22 22 Si 1.86794 * 119.99888 * 180.02562 * 20 18 17 23 23 H 1.48508 * 109.47281 * 0.02562 * 22 20 18 24 24 H 1.48500 * 109.47325 * 120.00225 * 22 20 18 25 25 H 1.48503 * 109.47321 * 240.00026 * 22 20 18 26 26 C 1.46845 * 111.19897 * 298.25829 * 13 12 11 27 27 C 1.53038 * 109.52423 * 61.74130 * 26 13 12 28 28 H 1.09002 * 109.46842 * 179.97438 * 1 2 3 29 29 H 1.08995 * 109.47031 * 300.00355 * 1 2 3 30 30 H 1.09009 * 109.46939 * 60.00621 * 1 2 3 31 31 H 1.08995 * 109.47031 * 239.99645 * 2 1 3 32 32 H 1.08996 * 109.46835 * 119.99734 * 2 1 3 33 33 H 1.09005 * 109.47275 * 296.05504 * 4 3 2 34 34 H 1.09000 * 109.46701 * 56.05145 * 4 3 2 35 35 H 1.08995 * 109.47048 * 176.05071 * 4 3 2 36 36 H 1.09001 * 109.47435 * 70.00165 * 5 3 2 37 37 H 1.09000 * 109.47089 * 309.99365 * 5 3 2 38 38 H 1.09000 * 109.47269 * 59.99447 * 6 5 3 39 39 H 1.09009 * 109.46915 * 299.99684 * 6 5 3 40 40 H 0.97000 * 120.00090 * 359.97438 * 9 7 6 41 41 H 1.08994 * 109.52080 * 325.12579 * 10 9 7 42 42 H 1.08998 * 109.50519 * 62.44346 * 11 10 9 43 43 H 1.08998 * 109.50523 * 302.31571 * 11 10 9 44 44 H 1.08994 * 109.46299 * 299.16822 * 12 11 10 45 45 H 1.09003 * 109.45395 * 179.18930 * 12 11 10 46 46 H 1.08996 * 109.46919 * 173.61386 * 14 13 12 47 47 H 1.08994 * 109.47139 * 53.61230 * 14 13 12 48 48 H 0.97002 * 119.99804 * 0.02562 * 17 15 14 49 49 H 0.96995 * 120.00108 * 179.97438 * 21 20 18 50 50 H 1.08998 * 109.46555 * 181.75400 * 26 13 12 51 51 H 1.09004 * 109.46392 * 301.72721 * 26 13 12 52 52 H 1.08998 * 109.50374 * 180.88473 * 27 26 13 53 53 H 1.09001 * 109.50604 * 60.76106 * 27 26 13 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 7 2.0196 1.3851 0.0000 4 6 1.6702 2.0669 -1.2534 5 6 3.4685 1.4311 0.2382 6 6 3.8999 2.8792 0.4792 7 6 5.3862 2.9266 0.7229 8 8 6.0365 1.9030 0.7060 9 7 5.9928 4.1064 0.9606 10 6 7.4377 4.1525 1.1981 11 6 7.7813 5.3959 2.0231 12 6 9.2975 5.4702 2.2174 13 7 9.9577 5.5323 0.9071 14 6 11.4038 5.7437 1.0557 15 6 11.6542 7.1099 1.6403 16 8 10.7305 7.8794 1.8011 17 7 12.9046 7.4768 1.9846 18 6 13.1325 8.7199 2.5160 19 1 12.3100 9.4050 2.6591 20 6 14.4217 9.0982 2.8704 21 7 15.4225 8.2647 2.6958 22 14 14.7321 10.7917 3.5950 23 1 13.4487 11.5328 3.6889 24 1 15.3214 10.6496 4.9507 25 1 15.6731 11.5387 2.7222 26 6 9.6807 4.3270 0.1153 27 6 8.1760 4.2186 -0.1418 28 1 -0.3633 -1.0277 -0.0005 29 1 -0.3633 0.5139 0.8899 30 1 -0.3633 0.5138 -0.8901 31 1 1.8934 -0.5139 -0.8899 32 1 1.8933 -0.5138 0.8900 33 1 2.1770 1.5789 -2.0860 34 1 0.5920 2.0178 -1.4053 35 1 1.9824 3.1098 -1.1989 36 1 3.9926 1.0359 -0.6321 37 1 3.7121 0.8290 1.1135 38 1 3.3758 3.2744 1.3493 39 1 3.6562 3.4814 -0.3962 40 1 5.4727 4.9251 0.9745 41 1 7.7464 3.2588 1.7404 42 1 7.2925 5.3340 2.9954 43 1 7.4376 6.2872 1.4983 44 1 9.6386 4.5851 2.7543 45 1 9.5465 6.3622 2.7922 46 1 11.8835 5.6728 0.0796 47 1 11.8158 4.9835 1.7192 48 1 13.6434 6.8615 1.8557 49 1 16.3225 8.5289 2.9428 50 1 10.2081 4.3887 -0.8366 51 1 10.0200 3.4473 0.6621 52 1 7.9691 3.3156 -0.7161 53 1 7.8384 5.0914 -0.7006 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 ZINC001229896063.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 06:12:06 Heat of formation + Delta-G solvation = -71.508625 kcal Electronic energy + Delta-G solvation = -29400.529506 eV Core-core repulsion = 25306.759152 eV Total energy + Delta-G solvation = -4093.770354 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.226 amu Computer time = 0.76 seconds Orbital eigenvalues (eV) -40.28418 -39.03755 -38.14966 -37.46281 -34.99757 -33.84303 -32.86984 -31.65224 -31.13594 -30.73221 -29.73869 -27.42437 -26.77871 -24.65702 -23.56589 -23.10613 -22.26959 -21.19276 -20.47106 -19.75432 -19.15736 -17.85157 -17.47984 -16.51205 -16.37412 -15.96676 -15.78940 -15.38191 -15.19871 -14.93706 -14.68089 -14.57273 -14.14413 -13.97289 -13.85087 -13.75132 -13.51614 -13.24097 -13.05273 -12.94404 -12.56232 -12.29729 -12.27171 -12.23009 -11.88286 -11.75737 -11.60133 -11.44868 -11.30662 -11.28696 -11.22071 -11.10101 -11.05071 -10.77050 -10.41953 -10.33974 -10.21834 -9.94815 -9.47657 -9.15167 -8.79347 -8.42751 -7.96341 -7.84401 -6.40994 -3.81691 2.46409 2.89025 3.16518 3.27093 3.34023 3.58537 3.92329 3.99357 4.24981 4.45311 4.50998 4.66294 4.70272 4.77772 4.81111 4.88297 5.01340 5.07272 5.08324 5.09899 5.13661 5.17945 5.25993 5.32332 5.37628 5.47368 5.48496 5.51612 5.54056 5.57350 5.60923 5.66958 5.70970 5.79807 5.82361 5.87451 6.01907 6.02084 6.13631 6.23748 6.31709 6.41254 6.44307 6.59630 6.60721 7.27905 7.34969 7.42630 7.56018 8.05497 8.07720 8.63035 9.19210 9.55984 10.07769 10.76888 Molecular weight = 340.23amu Principal moments of inertia in cm(-1) A = 0.041827 B = 0.001521 C = 0.001498 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 669.258008 B =18405.497849 C =18692.109464 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.149 4.149 2 C 0.050 3.950 3 N -0.545 5.545 4 C 0.016 3.984 5 C 0.071 3.929 6 C -0.138 4.138 7 C 0.514 3.486 8 O -0.544 6.544 9 N -0.724 5.724 10 C 0.143 3.857 11 C -0.118 4.118 12 C 0.059 3.941 13 N -0.515 5.515 14 C 0.046 3.954 15 C 0.444 3.556 16 O -0.577 6.577 17 N -0.565 5.565 18 C -0.298 4.298 19 H 0.104 0.896 20 C 0.022 3.978 21 N -0.902 5.902 22 Si 0.929 3.071 23 H -0.268 1.268 24 H -0.282 1.282 25 H -0.282 1.282 26 C 0.058 3.942 27 C -0.122 4.122 28 H 0.058 0.942 29 H 0.063 0.937 30 H 0.054 0.946 31 H 0.033 0.967 32 H 0.075 0.925 33 H 0.026 0.974 34 H 0.071 0.929 35 H 0.070 0.930 36 H 0.043 0.957 37 H 0.082 0.918 38 H 0.102 0.898 39 H 0.093 0.907 40 H 0.401 0.599 41 H 0.084 0.916 42 H 0.069 0.931 43 H 0.079 0.921 44 H 0.025 0.975 45 H 0.102 0.898 46 H 0.089 0.911 47 H 0.047 0.953 48 H 0.392 0.608 49 H 0.271 0.729 50 H 0.076 0.924 51 H 0.031 0.969 52 H 0.067 0.933 53 H 0.073 0.927 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -24.296 -14.772 -6.211 29.104 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 -0.207 4.207 2 C -0.078 4.078 3 N -0.270 5.270 4 C -0.132 4.132 5 C -0.057 4.057 6 C -0.179 4.179 7 C 0.300 3.700 8 O -0.422 6.422 9 N -0.375 5.375 10 C 0.039 3.961 11 C -0.156 4.156 12 C -0.069 4.069 13 N -0.240 5.240 14 C -0.085 4.085 15 C 0.229 3.771 16 O -0.461 6.461 17 N -0.202 5.202 18 C -0.428 4.428 19 H 0.121 0.879 20 C -0.179 4.179 21 N -0.543 5.543 22 Si 0.756 3.244 23 H -0.192 1.192 24 H -0.208 1.208 25 H -0.208 1.208 26 C -0.071 4.071 27 C -0.160 4.160 28 H 0.077 0.923 29 H 0.082 0.918 30 H 0.073 0.927 31 H 0.052 0.948 32 H 0.094 0.906 33 H 0.045 0.955 34 H 0.090 0.910 35 H 0.089 0.911 36 H 0.061 0.939 37 H 0.101 0.899 38 H 0.120 0.880 39 H 0.111 0.889 40 H 0.235 0.765 41 H 0.102 0.898 42 H 0.088 0.912 43 H 0.098 0.902 44 H 0.043 0.957 45 H 0.121 0.879 46 H 0.107 0.893 47 H 0.065 0.935 48 H 0.225 0.775 49 H 0.080 0.920 50 H 0.095 0.905 51 H 0.050 0.950 52 H 0.086 0.914 53 H 0.092 0.908 Dipole moment (debyes) X Y Z Total from point charges -24.677 -14.324 -5.932 29.143 hybrid contribution 1.325 -0.236 -0.036 1.347 sum -23.352 -14.559 -5.969 28.159 Atomic orbital electron populations 1.21810 0.94743 1.01612 1.02497 1.22085 0.96129 0.88574 1.01014 1.62013 1.13860 1.16207 1.34892 1.22511 1.01586 0.99380 0.89741 1.21810 0.86508 0.95493 1.01939 1.21641 0.92310 0.99300 1.04599 1.20624 0.89913 0.83468 0.76013 1.90706 1.66978 1.33579 1.50910 1.46143 1.09391 1.09315 1.72624 1.21114 0.79002 0.99605 0.96421 1.21824 0.96846 0.97273 0.99704 1.22114 0.92453 1.01910 0.90458 1.61521 1.09368 1.36265 1.16847 1.21846 0.88475 0.96800 1.01406 1.19757 0.83922 0.88778 0.84636 1.90497 1.42890 1.53950 1.58753 1.41892 1.06995 1.15946 1.55392 1.19746 0.94308 0.91709 1.37001 0.87866 1.25253 0.95117 0.99666 0.97914 1.69619 1.00210 1.36078 1.48435 0.85814 0.78558 0.81681 0.78365 1.19229 1.20810 1.20776 1.22051 0.95753 0.90959 0.98333 1.21921 0.94683 1.02271 0.97170 0.92272 0.91776 0.92666 0.94833 0.90639 0.95547 0.91048 0.91136 0.93907 0.89941 0.88004 0.88904 0.76496 0.89839 0.91235 0.90218 0.95667 0.87949 0.89256 0.93536 0.77517 0.91954 0.90518 0.95035 0.91424 0.90804 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 -0.78 9.84 37.16 0.37 -0.41 16 2 C 0.05 0.32 5.68 -3.82 -0.02 0.30 16 3 N -0.55 -3.96 4.76 -242.91 -1.16 -5.12 16 4 C 0.02 0.10 9.13 60.07 0.55 0.64 16 5 C 0.07 0.58 4.25 -3.82 -0.02 0.57 16 6 C -0.14 -1.00 5.62 -27.88 -0.16 -1.15 16 7 C 0.51 5.32 7.80 -10.99 -0.09 5.24 16 8 O -0.54 -7.78 15.64 5.56 0.09 -7.70 16 9 N -0.72 -6.79 5.08 -53.68 -0.27 -7.07 16 10 C 0.14 1.67 2.52 -67.80 -0.17 1.49 16 11 C -0.12 -1.47 5.57 -26.65 -0.15 -1.62 16 12 C 0.06 0.93 5.12 -3.83 -0.02 0.91 16 13 N -0.52 -8.47 4.35 -236.12 -1.03 -9.50 16 14 C 0.05 0.82 5.45 -4.98 -0.03 0.79 16 15 C 0.44 10.34 7.31 -10.99 -0.08 10.26 16 16 O -0.58 -15.24 14.29 5.55 0.08 -15.16 16 17 N -0.57 -14.22 5.29 -10.96 -0.06 -14.28 16 18 C -0.30 -8.25 9.68 -14.93 -0.14 -8.39 16 19 H 0.10 2.99 7.16 -52.49 -0.38 2.62 16 20 C 0.02 0.59 5.50 -17.47 -0.10 0.49 16 21 N -0.90 -24.49 13.05 55.50 0.72 -23.77 16 22 Si 0.93 20.95 29.55 -169.99 -5.02 15.93 16 23 H -0.27 -6.04 7.11 56.52 0.40 -5.64 16 24 H -0.28 -6.27 7.11 56.52 0.40 -5.87 16 25 H -0.28 -6.27 7.11 56.52 0.40 -5.87 16 26 C 0.06 0.77 5.46 -3.83 -0.02 0.75 16 27 C -0.12 -1.47 5.68 -26.65 -0.15 -1.62 16 28 H 0.06 0.25 8.14 -51.93 -0.42 -0.17 16 29 H 0.06 0.36 8.14 -51.93 -0.42 -0.06 16 30 H 0.05 0.27 6.47 -51.92 -0.34 -0.06 16 31 H 0.03 0.22 8.12 -51.93 -0.42 -0.20 16 32 H 0.08 0.49 7.93 -51.93 -0.41 0.08 16 33 H 0.03 0.16 8.14 -51.93 -0.42 -0.26 16 34 H 0.07 0.37 6.30 -51.93 -0.33 0.04 16 35 H 0.07 0.37 6.47 -51.93 -0.34 0.03 16 36 H 0.04 0.41 8.08 -51.93 -0.42 -0.01 16 37 H 0.08 0.76 7.89 -51.93 -0.41 0.35 16 38 H 0.10 0.63 8.14 -51.93 -0.42 0.21 16 39 H 0.09 0.53 6.55 -51.92 -0.34 0.19 16 40 H 0.40 2.77 8.61 -40.82 -0.35 2.42 16 41 H 0.08 1.12 7.58 -51.93 -0.39 0.72 16 42 H 0.07 0.77 8.14 -51.93 -0.42 0.35 16 43 H 0.08 1.03 8.14 -51.93 -0.42 0.61 16 44 H 0.03 0.38 8.14 -51.93 -0.42 -0.05 16 45 H 0.10 1.95 6.06 -51.93 -0.31 1.64 16 46 H 0.09 1.45 7.98 -51.93 -0.41 1.04 16 47 H 0.05 0.77 8.12 -51.93 -0.42 0.35 16 48 H 0.39 9.47 7.90 -40.82 -0.32 9.15 16 49 H 0.27 6.94 8.31 -40.82 -0.34 6.61 16 50 H 0.08 0.96 8.01 -51.93 -0.42 0.54 16 51 H 0.03 0.41 8.14 -51.93 -0.42 -0.01 16 52 H 0.07 0.83 8.14 -51.93 -0.42 0.41 16 53 H 0.07 0.91 8.14 -51.93 -0.42 0.49 16 LS Contribution 416.87 15.07 6.28 6.28 Total: -1.00 -32.52 416.87 -9.96 -42.48 By element: Atomic # 1 Polarization: 19.01 SS G_CDS: -9.37 Total: 9.64 kcal Atomic # 6 Polarization: 8.48 SS G_CDS: -0.23 Total: 8.25 kcal Atomic # 7 Polarization: -57.93 SS G_CDS: -1.79 Total: -59.72 kcal Atomic # 8 Polarization: -23.02 SS G_CDS: 0.17 Total: -22.85 kcal Atomic # 14 Polarization: 20.95 SS G_CDS: -5.02 Total: 15.93 kcal Total LS contribution 6.28 Total: 6.28 kcal Total: -32.52 -9.96 -42.48 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. ZINC001229896063.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 -29.028 kcal (2) G-P(sol) polarization free energy of solvation -32.516 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -61.545 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.964 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -42.480 kcal (6) G-S(sol) free energy of system = (1) + (5) -71.509 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 0.76 seconds