Wall clock time and date at job start Mon Mar 8 2021 06:38:54 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 1.50696 * 1 3 3 C 1.38212 * 120.00198 * 2 1 4 4 C 1.38255 * 120.00263 * 180.02562 * 3 2 1 5 5 C 1.50701 * 120.00232 * 179.97438 * 4 3 2 6 6 H 1.08998 * 112.85041 * 11.19328 * 5 4 3 7 7 C 1.53787 * 113.61763 * 142.50003 * 5 4 3 8 8 C 1.53781 * 87.08169 * 139.98055 * 7 5 4 9 9 H 1.08997 * 113.61140 * 220.02236 * 8 7 5 10 10 N 1.46499 * 113.61480 * 89.11843 * 8 7 5 11 11 C 1.34770 * 120.00184 * 107.50031 * 10 8 7 12 12 O 1.21282 * 119.99580 * 0.02562 * 11 10 8 13 13 C 1.50698 * 120.00145 * 180.02562 * 11 10 8 14 14 N 1.46504 * 109.47018 * 180.02562 * 13 11 10 15 15 C 1.36838 * 125.06054 * 265.02298 * 14 13 11 16 16 C 1.34234 * 109.93510 * 180.02562 * 15 14 13 17 17 C 1.50704 * 126.49432 * 180.02562 * 16 15 14 18 18 O 1.42904 * 109.46810 * 255.02243 * 17 16 15 19 19 Si 1.86291 * 109.47425 * 15.02482 * 17 16 15 20 20 C 1.46484 * 107.00163 * 0.02562 * 16 15 14 21 21 C 1.39597 * 134.03653 * 180.02562 * 20 16 15 22 22 C 1.36661 * 119.75928 * 179.23697 * 21 20 16 23 23 C 1.38786 * 120.53481 * 0.65697 * 22 21 20 24 24 C 1.37790 * 120.66304 * 359.57598 * 23 22 21 25 25 C 1.37693 * 125.06432 * 84.72145 * 14 13 11 26 26 C 1.53784 * 87.08251 * 334.56754 * 8 7 5 27 27 C 1.38217 * 119.99761 * 359.97438 * 4 3 2 28 28 C 1.38256 * 120.00088 * 359.97438 * 27 4 3 29 29 C 1.38215 * 119.99734 * 0.02885 * 28 27 4 30 30 H 1.08997 * 109.47013 * 270.02686 * 1 2 3 31 31 H 1.09005 * 109.46873 * 30.02029 * 1 2 3 32 32 H 1.08998 * 109.47033 * 150.02519 * 1 2 3 33 33 H 1.08000 * 119.99961 * 359.97326 * 3 2 1 34 34 H 1.08991 * 113.61239 * 254.53257 * 7 5 4 35 35 H 1.08997 * 113.60892 * 25.43129 * 7 5 4 36 36 H 0.97005 * 119.99478 * 287.50020 * 10 8 7 37 37 H 1.09004 * 109.46789 * 299.99703 * 13 11 10 38 38 H 1.08989 * 109.47435 * 60.00093 * 13 11 10 39 39 H 1.08004 * 125.02930 * 359.97438 * 15 14 13 40 40 H 1.09001 * 109.46817 * 135.02938 * 17 16 15 41 41 H 0.96702 * 113.99563 * 179.97438 * 18 17 16 42 42 H 1.48505 * 109.99989 * 299.99818 * 19 17 16 43 43 H 1.48499 * 110.00147 * 61.31759 * 19 17 16 44 44 H 1.07998 * 120.11329 * 359.97306 * 21 20 16 45 45 H 1.08005 * 119.73498 * 180.21254 * 22 21 20 46 46 H 1.07993 * 119.67363 * 179.60126 * 23 22 21 47 47 H 1.08003 * 120.11629 * 179.97438 * 24 23 22 48 48 H 1.08997 * 113.61718 * 270.88486 * 26 8 7 49 49 H 1.08999 * 113.61507 * 139.98252 * 26 8 7 50 50 H 1.08001 * 119.99701 * 180.02562 * 27 4 3 51 51 H 1.07995 * 120.00047 * 180.29818 * 28 27 4 52 52 H 1.08000 * 119.99306 * 179.97438 * 29 28 27 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 2.1981 1.1969 0.0000 4 6 3.5806 1.1969 -0.0005 5 6 4.3342 2.5020 -0.0011 6 1 3.6926 3.3613 0.1939 7 6 5.6107 2.4768 0.8562 8 6 6.2810 3.2974 -0.2583 9 1 7.3076 2.9955 -0.4655 10 7 6.1354 4.7453 -0.0895 11 6 7.1955 5.4906 0.2807 12 8 8.2702 4.9626 0.4736 13 6 7.0456 6.9800 0.4549 14 7 8.3311 7.5565 0.8566 15 6 8.7135 7.8018 2.1474 16 6 9.9464 8.3323 2.1665 17 6 10.7264 8.7434 3.3887 18 8 10.7249 10.1683 3.4977 19 14 9.9386 8.0037 4.9061 20 6 10.3899 8.4357 0.7742 21 6 11.5548 8.8969 0.1586 22 6 11.6694 8.8441 -1.2022 23 6 10.6313 8.3481 -1.9785 24 6 9.4709 7.8923 -1.3919 25 6 9.3368 7.9267 -0.0079 26 6 5.2519 2.6829 -1.2218 27 6 4.2717 -0.0001 -0.0005 28 6 3.5804 -1.1974 0.0005 29 6 2.1982 -1.1973 0.0010 30 1 -0.3633 0.0005 1.0276 31 1 -0.3633 0.8899 -0.5142 32 1 -0.3633 -0.8902 -0.5134 33 1 1.6581 2.1322 -0.0004 34 1 5.5146 3.0164 1.7982 35 1 6.0341 1.4800 0.9794 36 1 5.2759 5.1676 -0.2442 37 1 6.7266 7.4256 -0.4874 38 1 6.3000 7.1827 1.2235 39 1 8.1120 7.5995 3.0213 40 1 11.7528 8.3869 3.3016 41 1 11.2094 10.5046 4.2640 42 1 8.5388 8.4822 5.0362 43 1 9.9627 6.5214 4.8196 44 1 12.3672 9.2829 0.7563 45 1 12.5722 9.1978 -1.6779 46 1 10.7342 8.3187 -3.0531 47 1 8.6685 7.5085 -2.0045 48 1 5.5773 1.7425 -1.6666 49 1 4.8663 3.3890 -1.9572 50 1 5.3517 0.0000 -0.0005 51 1 4.1203 -2.1327 0.0054 52 1 1.6583 -2.1326 0.0014 There are 69 doubly filled levels RHF calculation, no. of doubly occupied orbitals= 69 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_9650858_9818708.mol2 52 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Mon Mar 8 2021 06:38:54 Heat of formation + Delta-G solvation = 54.141587 kcal Electronic energy + Delta-G solvation = -33033.332044 eV Core-core repulsion = 28737.629377 eV Total energy + Delta-G solvation = -4295.702667 eV No. of doubly occupied orbitals = 69 and no. of open levels = 1 Molecular weight (most abundant/longest-lived isotopes) = 377.178 amu Computer time = 1.41 seconds Orbital eigenvalues (eV) -42.50777 -41.62911 -40.37998 -39.00331 -37.93415 -37.48276 -34.90697 -34.13249 -33.39656 -32.02981 -31.27430 -30.17972 -29.03394 -27.88301 -26.85965 -26.41210 -25.45500 -23.69578 -23.13692 -22.85210 -22.08385 -21.76041 -20.44599 -19.97727 -18.75855 -18.20862 -18.11014 -17.73258 -17.65162 -17.01563 -16.44940 -16.41644 -16.32668 -16.11455 -15.69865 -15.41025 -15.12689 -14.92606 -14.86658 -14.79238 -14.63161 -14.58208 -14.32567 -14.10802 -14.02767 -13.95639 -13.65286 -13.47372 -13.41310 -13.16965 -12.84681 -12.78811 -12.63373 -12.46233 -12.33673 -12.27413 -11.89417 -11.82684 -11.78462 -11.64754 -11.30638 -11.13681 -10.43353 -10.26516 -10.10569 -9.73059 -9.50355 -9.03022 -8.54177 -4.95538 0.26899 0.37004 0.43985 0.79081 1.34141 1.37546 1.40559 1.60368 1.76307 2.04684 2.07196 2.73083 3.10312 3.28947 3.40579 3.42347 3.53175 3.58026 3.67510 3.75111 3.78250 3.80016 3.83934 3.90079 3.96349 4.02952 4.10231 4.16688 4.32004 4.36496 4.38600 4.43437 4.46833 4.50964 4.58505 4.64734 4.65259 4.67084 4.70437 4.77965 4.79583 4.84341 4.89362 4.90083 4.96668 4.98830 5.10340 5.19531 5.25045 5.37277 5.53358 5.64092 5.64135 5.67373 5.79583 5.85102 5.88815 6.06365 6.12065 6.28535 6.36049 6.80648 6.96853 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.117 4.117 2 C -0.084 4.084 3 C -0.117 4.117 4 C -0.069 4.069 5 C -0.072 4.072 6 H 0.096 0.904 7 C -0.143 4.143 8 C 0.119 3.881 9 H 0.105 0.895 10 N -0.711 5.711 11 C 0.493 3.507 12 O -0.511 6.511 13 C 0.091 3.909 14 N -0.465 5.465 15 C 0.064 3.936 16 C -0.150 4.150 17 C -0.032 4.032 18 O -0.547 6.547 19 Si 0.681 3.319 20 C -0.085 4.085 21 C -0.063 4.063 22 C -0.145 4.145 23 C -0.096 4.096 24 C -0.127 4.127 25 C 0.109 3.891 26 C -0.134 4.134 27 C -0.123 4.123 28 C -0.113 4.113 29 C -0.124 4.124 30 H 0.071 0.929 31 H 0.066 0.934 32 H 0.067 0.933 33 H 0.120 0.880 34 H 0.073 0.927 35 H 0.096 0.904 36 H 0.402 0.598 37 H 0.120 0.880 38 H 0.122 0.878 39 H 0.162 0.838 40 H 0.070 0.930 41 H 0.378 0.622 42 H -0.254 1.254 43 H -0.256 1.256 44 H 0.123 0.877 45 H 0.124 0.876 46 H 0.126 0.874 47 H 0.115 0.885 48 H 0.099 0.901 49 H 0.077 0.923 50 H 0.122 0.878 51 H 0.123 0.877 52 H 0.121 0.879 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -3.573 0.114 0.842 3.673 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 -0.174 4.174 2 C -0.084 4.084 3 C -0.135 4.135 4 C -0.069 4.069 5 C -0.090 4.090 6 H 0.114 0.886 7 C -0.182 4.182 8 C 0.013 3.987 9 H 0.123 0.877 10 N -0.364 5.364 11 C 0.277 3.723 12 O -0.385 6.385 13 C -0.035 4.035 14 N -0.149 5.149 15 C -0.060 4.060 16 C -0.157 4.157 17 C -0.144 4.144 18 O -0.353 6.353 19 Si 0.582 3.418 20 C -0.089 4.089 21 C -0.082 4.082 22 C -0.164 4.164 23 C -0.115 4.115 24 C -0.148 4.148 25 C 0.005 3.995 26 C -0.172 4.172 27 C -0.141 4.141 28 C -0.131 4.131 29 C -0.142 4.142 30 H 0.090 0.910 31 H 0.085 0.915 32 H 0.086 0.914 33 H 0.138 0.862 34 H 0.092 0.908 35 H 0.115 0.885 36 H 0.237 0.763 37 H 0.138 0.862 38 H 0.140 0.860 39 H 0.179 0.821 40 H 0.088 0.912 41 H 0.225 0.775 42 H -0.179 1.179 43 H -0.180 1.180 44 H 0.141 0.859 45 H 0.142 0.858 46 H 0.144 0.856 47 H 0.133 0.867 48 H 0.118 0.882 49 H 0.096 0.904 50 H 0.140 0.860 51 H 0.141 0.859 52 H 0.139 0.861 Dipole moment (debyes) X Y Z Total from point charges -4.082 -0.958 0.686 4.249 hybrid contribution -0.604 -0.067 -0.626 0.872 sum -4.686 -1.025 0.060 4.797 Atomic orbital electron populations 1.20819 0.91081 1.02944 1.02505 1.19952 0.96186 0.93152 0.99065 1.20921 0.93471 0.97586 1.01546 1.19635 0.93402 0.94296 0.99578 1.21581 0.94964 0.95325 0.97176 0.88560 1.23563 0.95363 1.01256 0.97993 1.21882 1.00792 0.79309 0.96669 0.87652 1.45622 1.12705 1.07566 1.70473 1.21026 0.84568 0.89401 0.77276 1.90814 1.26302 1.73200 1.48153 1.21596 0.85737 0.91159 1.04978 1.43173 1.13338 1.53483 1.04890 1.21409 0.96038 1.02389 0.86204 1.19536 0.94981 1.08913 0.92292 1.23942 1.02393 0.86089 1.01941 1.86541 1.78162 1.18996 1.51555 0.95361 0.82640 0.80235 0.83551 1.18925 0.94787 1.03559 0.91677 1.20282 0.95782 0.97689 0.94407 1.20672 0.99465 1.02726 0.93558 1.20829 0.92656 0.98265 0.99730 1.19956 0.99458 1.05053 0.90308 1.18168 0.88494 1.01035 0.91786 1.23420 0.95542 1.01969 0.96241 1.20989 0.99876 0.91956 1.01280 1.21157 0.94340 0.98073 0.99481 1.21082 0.94348 0.97632 1.01165 0.91037 0.91483 0.91392 0.86244 0.90828 0.88520 0.76288 0.86167 0.86028 0.82101 0.91157 0.77516 1.17895 1.18009 0.85870 0.85791 0.85619 0.86668 0.88223 0.90431 0.86047 0.85941 0.86075 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 -0.12 0.12 10.01 36.00 0.36 0.48 16 2 C -0.08 -0.06 5.88 -104.63 -0.62 -0.68 16 3 C -0.12 -0.05 9.37 -39.58 -0.37 -0.42 16 4 C -0.07 -0.01 5.29 -104.62 -0.55 -0.56 16 5 C -0.07 0.13 3.86 -90.95 -0.35 -0.22 16 6 H 0.10 -0.27 8.09 -51.93 -0.42 -0.69 16 7 C -0.14 0.14 7.25 -25.92 -0.19 -0.05 16 8 C 0.12 -0.10 4.32 -67.12 -0.29 -0.39 16 9 H 0.11 0.14 7.47 -51.93 -0.39 -0.25 16 10 N -0.71 1.28 5.26 -53.02 -0.28 1.00 16 11 C 0.49 0.57 7.90 -10.99 -0.09 0.48 16 12 O -0.51 -3.22 16.02 5.56 0.09 -3.13 16 13 C 0.09 -0.08 6.48 -5.19 -0.03 -0.12 16 14 N -0.47 -1.54 2.27 -115.71 -0.26 -1.80 16 15 C 0.06 0.25 9.89 -16.73 -0.17 0.09 16 16 C -0.15 -0.73 5.61 -102.71 -0.58 -1.30 16 17 C -0.03 -0.06 3.05 36.01 0.11 0.05 16 18 O -0.55 -0.99 12.86 -35.23 -0.45 -1.45 16 19 Si 0.68 0.10 30.79 -169.99 -5.23 -5.14 16 20 C -0.09 -0.49 6.35 -105.14 -0.67 -1.15 16 21 C -0.06 -0.27 10.05 -39.64 -0.40 -0.67 16 22 C -0.15 -0.45 9.97 -39.95 -0.40 -0.85 16 23 C -0.10 -0.27 10.01 -39.54 -0.40 -0.66 16 24 C -0.13 -0.44 10.00 -39.43 -0.39 -0.84 16 25 C 0.11 0.54 6.80 -83.99 -0.57 -0.03 16 26 C -0.13 0.28 7.29 -25.91 -0.19 0.09 16 27 C -0.12 -0.04 8.61 -39.58 -0.34 -0.39 16 28 C -0.11 -0.07 10.05 -39.58 -0.40 -0.47 16 29 C -0.12 -0.10 9.70 -39.58 -0.38 -0.48 16 30 H 0.07 -0.10 8.14 -51.93 -0.42 -0.52 16 31 H 0.07 -0.11 8.09 -51.93 -0.42 -0.53 16 32 H 0.07 -0.10 8.09 -51.93 -0.42 -0.52 16 33 H 0.12 -0.13 8.05 -52.49 -0.42 -0.55 16 34 H 0.07 -0.01 8.14 -51.93 -0.42 -0.44 16 35 H 0.10 -0.08 6.31 -51.93 -0.33 -0.41 16 36 H 0.40 -1.96 8.70 -40.82 -0.36 -2.31 16 37 H 0.12 -0.41 8.14 -51.93 -0.42 -0.83 16 38 H 0.12 -0.47 8.12 -51.94 -0.42 -0.89 16 39 H 0.16 0.33 6.30 -52.48 -0.33 0.00 16 40 H 0.07 0.06 7.96 -51.93 -0.41 -0.35 16 41 H 0.38 -1.31 8.74 45.56 0.40 -0.92 16 42 H -0.25 -0.59 7.04 56.52 0.40 -0.19 16 43 H -0.26 -0.84 7.11 56.52 0.40 -0.44 16 44 H 0.12 0.34 8.06 -52.49 -0.42 -0.08 16 45 H 0.12 0.11 8.06 -52.48 -0.42 -0.32 16 46 H 0.13 0.05 8.06 -52.49 -0.42 -0.37 16 47 H 0.12 0.16 8.06 -52.48 -0.42 -0.26 16 48 H 0.10 -0.18 7.72 -51.93 -0.40 -0.58 16 49 H 0.08 -0.21 8.14 -51.93 -0.42 -0.64 16 50 H 0.12 -0.11 6.66 -52.49 -0.35 -0.46 16 51 H 0.12 -0.11 8.06 -52.49 -0.42 -0.54 16 52 H 0.12 -0.07 8.06 -52.49 -0.42 -0.50 16 LS Contribution 430.30 15.07 6.48 6.48 Total: 0.00 -11.46 430.30 -14.25 -25.71 By element: Atomic # 1 Polarization: -5.88 SS G_CDS: -7.70 Total: -13.58 kcal Atomic # 6 Polarization: -1.20 SS G_CDS: -6.90 Total: -8.09 kcal Atomic # 7 Polarization: -0.26 SS G_CDS: -0.54 Total: -0.80 kcal Atomic # 8 Polarization: -4.21 SS G_CDS: -0.36 Total: -4.58 kcal Atomic # 14 Polarization: 0.10 SS G_CDS: -5.23 Total: -5.14 kcal Total LS contribution 6.48 Total: 6.48 kcal Total: -11.46 -14.25 -25.71 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_9650858_9818708.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 79.852 kcal (2) G-P(sol) polarization free energy of solvation -11.458 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 68.395 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -14.253 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -25.711 kcal (6) G-S(sol) free energy of system = (1) + (5) 54.142 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.41 seconds