Wall clock time and date at job start Sun Mar 7 2021 03:50:35 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 * SM5.42R - SM5.42R CALCULATIONS WILL BE PERFORMED * - CHARGE MODEL 2 WILL BE USED (CM2A) * - THE SOLVENT IS WATER ******************************************************************************* 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 N 1.46498 * 1 3 3 C 1.34775 * 120.00128 * 2 1 4 4 O 1.21575 * 120.00197 * 175.87881 * 3 2 1 5 5 C 1.47724 * 119.99862 * 355.87746 * 3 2 1 6 6 C 1.39709 * 120.02346 * 221.85389 * 5 3 2 7 7 C 1.37669 * 119.97549 * 179.72171 * 6 5 3 8 8 C 1.39503 * 120.02100 * 0.55461 * 7 6 5 9 9 C 1.48278 * 119.97861 * 179.74401 * 8 7 6 10 10 C 1.39402 * 120.13146 * 179.69624 * 9 8 7 11 11 C 1.37999 * 119.86844 * 179.76634 * 10 9 8 12 12 C 1.38336 * 120.12955 * 0.51383 * 11 10 9 13 13 C 1.50699 * 119.87209 * 179.76275 * 12 11 10 14 14 O 1.42894 * 109.47332 * 244.98369 * 13 12 11 15 15 Si 1.86307 * 109.47080 * 4.97887 * 13 12 11 16 16 C 1.38330 * 120.25647 * 359.74068 * 12 11 10 17 17 C 1.38000 * 120.12599 * 0.02562 * 16 12 11 18 18 C 1.39508 * 120.04932 * 359.71754 * 8 7 6 19 19 C 1.37664 * 120.02632 * 0.02562 * 18 8 7 20 20 C 1.46500 * 119.99961 * 180.02562 * 2 1 3 21 21 H 1.09003 * 112.90575 * 168.74893 * 20 2 1 22 22 C 1.53783 * 113.61211 * 299.99665 * 20 2 1 23 23 C 1.53777 * 87.17271 * 89.15834 * 22 20 2 24 24 H 1.08994 * 113.61423 * 270.75760 * 23 22 20 25 25 C 1.50697 * 113.61403 * 139.93966 * 23 22 20 26 26 C 1.38232 * 119.99877 * 299.72733 * 25 23 22 27 27 C 1.38240 * 120.00202 * 179.78923 * 26 25 23 28 28 C 1.38239 * 119.99624 * 0.43527 * 27 26 25 29 29 C 1.38236 * 119.99874 * 359.81625 * 28 27 26 30 30 C 1.38227 * 120.00195 * 359.97438 * 29 28 27 31 31 C 1.53775 * 87.08143 * 25.39016 * 23 22 20 32 32 H 1.09004 * 109.46694 * 269.19044 * 1 2 3 33 33 H 1.09003 * 109.47414 * 29.18814 * 1 2 3 34 34 H 1.08998 * 109.47440 * 149.19253 * 1 2 3 35 35 H 1.08000 * 120.01100 * 359.97438 * 6 5 3 36 36 H 1.08000 * 119.99107 * 180.25220 * 7 6 5 37 37 H 1.07999 * 120.06258 * 0.02562 * 10 9 8 38 38 H 1.08004 * 119.93475 * 180.23642 * 11 10 9 39 39 H 1.08998 * 109.47485 * 124.97702 * 13 12 11 40 40 H 0.96700 * 114.00479 * 59.99293 * 14 13 12 41 41 H 1.48499 * 109.99876 * 58.68022 * 15 13 12 42 42 H 1.48500 * 109.99790 * 179.97438 * 15 13 12 43 43 H 1.07995 * 119.93655 * 179.97438 * 16 12 11 44 44 H 1.08002 * 120.06386 * 180.02562 * 17 16 12 45 45 H 1.08002 * 119.98431 * 179.97438 * 18 8 7 46 46 H 1.07996 * 120.01628 * 180.02562 * 19 18 8 47 47 H 1.09001 * 113.61135 * 334.56484 * 22 20 2 48 48 H 1.09000 * 113.61241 * 203.74916 * 22 20 2 49 49 H 1.08002 * 120.00278 * 0.02562 * 26 25 23 50 50 H 1.07993 * 120.00547 * 180.27278 * 27 26 25 51 51 H 1.08003 * 120.00021 * 179.83007 * 28 27 26 52 52 H 1.07998 * 119.99842 * 179.97438 * 29 28 27 53 53 H 1.07998 * 120.00137 * 180.02562 * 30 29 28 54 54 H 1.09000 * 113.61794 * 89.11862 * 31 23 22 55 55 H 1.09002 * 113.61924 * 219.93316 * 31 23 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 7 1.4650 0.0000 0.0000 3 6 2.1389 1.1672 0.0000 4 8 3.3523 1.1685 0.0757 5 6 1.4031 2.4448 -0.0920 6 6 1.8845 3.4715 -0.9081 7 6 1.1949 4.6597 -0.9975 8 6 0.0222 4.8430 -0.2646 9 6 -0.7166 6.1252 -0.3573 10 6 -1.8923 6.3095 0.3689 11 6 -2.5730 7.5068 0.2823 12 6 -2.0966 8.5192 -0.5311 13 6 -2.8474 9.8224 -0.6254 14 8 -3.3470 9.9893 -1.9537 15 14 -4.2712 9.8070 0.5761 16 6 -0.9334 8.3401 -1.2581 17 6 -0.2416 7.1488 -1.1758 18 6 -0.4563 3.8205 0.5551 19 6 0.2288 2.6296 0.6419 20 6 2.1975 -1.2687 -0.0006 21 1 3.2624 -1.1437 -0.1964 22 6 1.8954 -2.1550 1.2194 23 6 0.7442 -2.7603 0.3990 24 1 -0.1992 -2.2257 0.5099 25 6 0.5967 -4.2498 0.5734 26 6 1.6387 -5.0920 0.2332 27 6 1.5052 -6.4581 0.3973 28 6 0.3262 -6.9827 0.8931 29 6 -0.7178 -6.1408 1.2284 30 6 -0.5826 -4.7745 1.0684 31 6 1.5355 -2.3626 -0.8581 32 1 -0.3633 -0.0145 1.0276 33 1 -0.3634 0.8972 -0.5012 34 1 -0.3634 -0.8826 -0.5263 35 1 2.7950 3.3316 -1.4718 36 1 1.5646 5.4520 -1.6315 37 1 -2.2673 5.5183 1.0011 38 1 -3.4819 7.6521 0.8474 39 1 -2.1766 10.6466 -0.3832 40 1 -3.9520 9.2903 -2.2372 41 1 -3.7675 9.6021 1.9579 42 1 -5.0194 11.0871 0.4933 43 1 -0.5663 9.1338 -1.8919 44 1 0.6666 7.0103 -1.7434 45 1 -1.3641 3.9637 1.1224 46 1 -0.1420 1.8381 1.2762 47 1 1.5617 -1.5956 2.0934 48 1 2.6886 -2.8662 1.4495 49 1 2.5587 -4.6825 -0.1572 50 1 2.3208 -7.1158 0.1357 51 1 0.2207 -8.0502 1.0187 52 1 -1.6390 -6.5506 1.6154 53 1 -1.3980 -4.1167 1.3307 54 1 2.2311 -3.1302 -1.1973 55 1 0.9112 -1.9723 -1.6619 There are 73 doubly filled levels RHF calculation, no. of doubly occupied orbitals= 73 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=WATER s_22_14797354_13158362.mol2 55 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Sun Mar 7 2021 03:50:35 Heat of formation + Delta-G solvation = 67.142682 kcal Electronic energy + Delta-G solvation = -35266.373069 eV Core-core repulsion = 30780.207802 eV Total energy + Delta-G solvation = -4486.165267 eV No. of doubly occupied orbitals = 73 and no. of open levels = 1 Molecular weight (most abundant/longest-lived isotopes) = 400.183 amu Computer time = 4.46 seconds Orbital eigenvalues (eV) -42.08971 -41.08746 -40.45768 -39.39718 -38.69745 -37.51368 -35.65224 -33.91789 -32.61600 -32.02065 -31.73545 -31.51439 -30.67655 -28.49285 -27.19559 -26.73900 -25.79960 -24.69190 -24.28214 -23.53425 -22.72141 -22.49779 -21.76824 -21.17285 -19.79112 -18.82686 -18.54015 -17.99516 -17.70199 -17.42315 -16.94229 -16.62117 -16.47615 -16.18165 -16.10859 -15.88710 -15.64963 -15.41836 -15.26666 -15.01023 -14.97736 -14.85793 -14.46823 -14.38094 -14.24986 -14.17529 -14.09535 -14.01312 -13.93851 -13.59501 -13.50076 -13.24363 -13.00348 -12.91827 -12.73329 -12.69790 -12.46581 -12.11022 -12.07921 -11.94319 -11.72229 -11.63336 -11.57930 -11.19543 -11.04814 -10.67870 -10.39832 -10.03029 -9.94664 -9.81074 -9.76601 -9.51623 -9.05340 -5.00209 -0.62949 0.34342 0.41535 0.45040 0.52370 0.55378 1.31610 1.56696 1.64595 1.81983 1.97874 2.52470 2.85251 2.98488 3.30891 3.43966 3.52064 3.58298 3.66167 3.67167 3.71244 3.75984 3.87946 3.95145 4.00942 4.04555 4.07345 4.15167 4.17513 4.23895 4.27941 4.29764 4.32376 4.38055 4.47603 4.53430 4.59553 4.61142 4.65565 4.67875 4.69256 4.73368 4.80467 4.85596 4.89519 4.91025 4.95466 4.98446 5.09336 5.12669 5.15591 5.18563 5.19716 5.21696 5.28311 5.40710 5.51103 5.55000 5.61098 5.66726 5.66822 5.76832 5.80269 5.94324 6.14862 6.22066 6.76882 6.96954 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.051 3.949 2 N -0.585 5.585 3 C 0.556 3.444 4 O -0.582 6.582 5 C -0.144 4.144 6 C -0.077 4.077 7 C -0.121 4.121 8 C -0.026 4.026 9 C -0.058 4.058 10 C -0.101 4.101 11 C -0.117 4.117 12 C -0.120 4.120 13 C -0.078 4.078 14 O -0.556 6.556 15 Si 0.779 3.221 16 C -0.105 4.105 17 C -0.114 4.114 18 C -0.113 4.113 19 C -0.080 4.080 20 C 0.110 3.890 21 H 0.085 0.915 22 C -0.133 4.133 23 C -0.068 4.068 24 H 0.121 0.879 25 C -0.078 4.078 26 C -0.129 4.129 27 C -0.132 4.132 28 C -0.139 4.139 29 C -0.130 4.130 30 C -0.126 4.126 31 C -0.133 4.133 32 H 0.082 0.918 33 H 0.089 0.911 34 H 0.094 0.906 35 H 0.123 0.877 36 H 0.143 0.857 37 H 0.157 0.843 38 H 0.150 0.850 39 H 0.103 0.897 40 H 0.395 0.605 41 H -0.285 1.285 42 H -0.303 1.303 43 H 0.126 0.874 44 H 0.136 0.864 45 H 0.162 0.838 46 H 0.158 0.842 47 H 0.072 0.928 48 H 0.092 0.908 49 H 0.129 0.871 50 H 0.131 0.869 51 H 0.131 0.869 52 H 0.135 0.865 53 H 0.138 0.862 54 H 0.101 0.899 55 H 0.083 0.917 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -8.050 -3.518 0.184 8.787 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 -0.090 4.090 2 N -0.315 5.315 3 C 0.347 3.653 4 O -0.462 6.462 5 C -0.147 4.147 6 C -0.096 4.096 7 C -0.139 4.139 8 C -0.026 4.026 9 C -0.058 4.058 10 C -0.118 4.118 11 C -0.134 4.134 12 C -0.120 4.120 13 C -0.187 4.187 14 O -0.365 6.365 15 Si 0.686 3.314 16 C -0.123 4.123 17 C -0.132 4.132 18 C -0.131 4.131 19 C -0.099 4.099 20 C 0.006 3.994 21 H 0.104 0.896 22 C -0.172 4.172 23 C -0.086 4.086 24 H 0.139 0.861 25 C -0.078 4.078 26 C -0.147 4.147 27 C -0.150 4.150 28 C -0.156 4.156 29 C -0.148 4.148 30 C -0.143 4.143 31 C -0.171 4.171 32 H 0.101 0.899 33 H 0.107 0.893 34 H 0.113 0.887 35 H 0.141 0.859 36 H 0.160 0.840 37 H 0.175 0.825 38 H 0.168 0.832 39 H 0.121 0.879 40 H 0.245 0.755 41 H -0.212 1.212 42 H -0.231 1.231 43 H 0.144 0.856 44 H 0.153 0.847 45 H 0.180 0.820 46 H 0.175 0.825 47 H 0.091 0.909 48 H 0.110 0.890 49 H 0.147 0.853 50 H 0.149 0.851 51 H 0.149 0.851 52 H 0.152 0.848 53 H 0.155 0.845 54 H 0.119 0.881 55 H 0.101 0.899 Dipole moment (debyes) X Y Z Total from point charges -7.425 -2.646 0.931 7.937 hybrid contribution 1.305 0.214 -0.265 1.349 sum -6.120 -2.432 0.666 6.619 Atomic orbital electron populations 1.22628 0.77365 1.05249 1.03759 1.47472 1.08188 1.04253 1.71624 1.18755 0.86573 0.84635 0.75384 1.90783 1.15767 1.87910 1.51784 1.19871 0.97884 0.94058 1.02853 1.21137 0.98928 0.92338 0.97208 1.21326 0.95007 0.97378 1.00158 1.19114 0.94174 0.93204 0.96117 1.18930 0.95692 0.92877 0.98330 1.21514 0.93742 0.98030 0.98550 1.21171 1.00459 0.93053 0.98711 1.20531 0.96710 0.96526 0.98269 1.25230 1.04540 0.96069 0.92894 1.86475 1.67126 1.53106 1.29746 0.93767 0.79232 0.83363 0.75065 1.21061 0.94724 0.97565 0.98926 1.21488 1.00332 0.92916 0.98473 1.21487 1.01217 0.91788 0.98568 1.21636 0.92184 0.98611 0.97423 1.22002 0.96660 0.82586 0.98157 0.89632 1.23398 0.98607 0.98165 0.97009 1.21815 0.99332 0.91132 0.96343 0.86149 1.19863 0.94026 0.95254 0.98673 1.21228 0.99275 0.93539 1.00634 1.21412 0.98297 0.95710 0.99535 1.21444 0.93901 1.00713 0.99591 1.21445 0.99506 0.93957 0.99865 1.21330 0.97768 0.95593 0.99650 1.23483 0.99617 0.97155 0.96810 0.89934 0.89296 0.88732 0.85885 0.83977 0.82545 0.83248 0.87939 0.75457 1.21159 1.23140 0.85631 0.84653 0.82025 0.82470 0.90896 0.88996 0.85305 0.85146 0.85126 0.84756 0.84461 0.88092 0.89877 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 0.05 -0.37 7.31 127.77 0.93 0.56 16 2 N -0.59 -0.36 3.08 -822.85 -2.54 -2.90 16 3 C 0.56 4.00 7.31 86.75 0.63 4.63 16 4 O -0.58 -9.52 16.45 -3.95 -0.07 -9.58 16 5 C -0.14 -0.44 5.14 -20.06 -0.10 -0.54 16 6 C -0.08 -0.29 9.64 22.49 0.22 -0.07 16 7 C -0.12 -0.08 9.41 22.44 0.21 0.13 16 8 C -0.03 0.03 5.88 -20.00 -0.12 -0.09 16 9 C -0.06 0.07 5.88 -20.04 -0.12 -0.05 16 10 C -0.10 0.43 9.43 22.49 0.21 0.65 16 11 C -0.12 0.48 8.65 22.24 0.19 0.67 16 12 C -0.12 0.15 5.36 -19.82 -0.11 0.04 16 13 C -0.08 0.10 2.80 71.24 0.20 0.30 16 14 O -0.56 0.18 12.83 -148.98 -1.91 -1.73 16 15 Si 0.78 -2.67 29.79 68.60 2.04 -0.62 16 16 C -0.10 -0.04 9.67 22.23 0.21 0.18 16 17 C -0.11 0.04 9.43 22.49 0.21 0.25 16 18 C -0.11 0.49 9.41 22.44 0.21 0.71 16 19 C -0.08 0.25 7.50 22.49 0.17 0.42 16 20 C 0.11 0.10 4.45 45.58 0.20 0.30 16 21 H 0.09 0.52 7.27 -2.39 -0.02 0.50 16 22 C -0.13 0.19 7.20 31.12 0.22 0.41 16 23 C -0.07 0.28 3.31 -11.02 -0.04 0.24 16 24 H 0.12 -0.90 5.54 -2.39 -0.01 -0.91 16 25 C -0.08 0.06 5.29 -19.87 -0.11 -0.05 16 26 C -0.13 -0.05 8.62 22.27 0.19 0.14 16 27 C -0.13 -0.13 10.05 22.27 0.22 0.10 16 28 C -0.14 -0.11 10.05 22.27 0.22 0.11 16 29 C -0.13 0.00 10.05 22.27 0.22 0.23 16 30 C -0.13 0.12 9.71 22.27 0.22 0.33 16 31 C -0.13 0.41 6.67 31.18 0.21 0.62 16 32 H 0.08 -0.90 7.23 -2.38 -0.02 -0.91 16 33 H 0.09 -0.70 5.57 -2.39 -0.01 -0.71 16 34 H 0.09 -0.90 4.88 -2.39 -0.01 -0.91 16 35 H 0.12 0.60 8.06 -2.91 -0.02 0.57 16 36 H 0.14 -0.32 6.19 -2.91 -0.02 -0.34 16 37 H 0.16 -1.57 6.19 -2.91 -0.02 -1.59 16 38 H 0.15 -1.32 4.89 -2.91 -0.01 -1.34 16 39 H 0.10 0.05 7.96 -2.39 -0.02 0.03 16 40 H 0.40 -3.40 8.70 -74.06 -0.64 -4.04 16 41 H -0.28 -0.33 7.11 99.48 0.71 0.38 16 42 H -0.30 -1.43 7.11 99.48 0.71 -0.72 16 43 H 0.13 0.02 8.06 -2.91 -0.02 -0.01 16 44 H 0.14 -0.37 6.19 -2.91 -0.02 -0.38 16 45 H 0.16 -1.69 6.19 -2.91 -0.02 -1.71 16 46 H 0.16 -1.28 5.77 -2.91 -0.02 -1.30 16 47 H 0.07 -0.07 8.14 -2.39 -0.02 -0.09 16 48 H 0.09 -0.06 7.73 -2.39 -0.02 -0.08 16 49 H 0.13 -0.25 6.64 -2.91 -0.02 -0.27 16 50 H 0.13 -0.24 8.06 -2.91 -0.02 -0.27 16 51 H 0.13 -0.28 8.06 -2.91 -0.02 -0.31 16 52 H 0.13 -0.47 8.06 -2.91 -0.02 -0.49 16 53 H 0.14 -0.71 8.05 -2.91 -0.02 -0.73 16 54 H 0.10 -0.32 6.30 -2.39 -0.02 -0.34 16 55 H 0.08 -0.32 7.35 -2.39 -0.02 -0.34 16 Total: 0.00 -23.31 431.63 2.41 -20.90 By element: Atomic # 1 Polarization: -16.64 SS G_CDS: 0.34 Total: -16.29 kcal Atomic # 6 Polarization: 5.69 SS G_CDS: 4.53 Total: 10.22 kcal Atomic # 7 Polarization: -0.36 SS G_CDS: -2.54 Total: -2.90 kcal Atomic # 8 Polarization: -9.34 SS G_CDS: -1.98 Total: -11.32 kcal Atomic # 14 Polarization: -2.67 SS G_CDS: 2.04 Total: -0.62 kcal Total: -23.31 2.41 -20.90 kcal The number of atoms in the molecule is 55 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_14797354_13158362.mol2 55 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 88.046 kcal (2) G-P(sol) polarization free energy of solvation -23.312 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 64.734 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy 2.408 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -20.904 kcal (6) G-S(sol) free energy of system = (1) + (5) 67.143 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 4.46 seconds