Wall clock time and date at job start Mon Mar 8 2021 15:25:55 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 O 2 2 C 1.42894 * 1 3 3 Si 1.86298 * 109.47725 * 2 1 4 4 C 1.50699 * 109.47188 * 120.00199 * 2 1 3 5 5 C 1.36632 * 119.53762 * 74.99778 * 4 2 1 6 6 O 1.35805 * 120.22735 * 359.97438 * 5 4 2 7 7 C 1.42908 * 117.00035 * 90.00108 * 6 5 4 8 8 C 1.52995 * 109.47030 * 180.02562 * 7 6 5 9 9 H 1.09005 * 109.46647 * 179.97438 * 8 7 6 10 10 O 1.42961 * 109.46986 * 299.99920 * 8 7 6 11 11 C 1.43095 * 113.77036 * 178.79868 * 10 8 7 12 12 C 1.53262 * 108.93954 * 302.03057 * 11 10 8 13 13 H 1.08998 * 109.57354 * 294.71380 * 12 11 10 14 14 N 1.46497 * 109.57503 * 174.46142 * 12 11 10 15 15 C 1.34529 * 124.45825 * 299.69989 * 14 12 11 16 16 O 1.21446 * 125.71101 * 0.02589 * 15 14 12 17 17 C 1.47819 * 108.57778 * 179.90895 * 15 14 12 18 18 C 1.40948 * 105.88101 * 0.34217 * 17 15 14 19 19 C 1.38567 * 119.81942 * 179.80340 * 18 17 15 20 20 C 1.38616 * 119.72008 * 359.97438 * 19 18 17 21 21 C 1.38233 * 120.45846 * 0.02562 * 20 19 18 22 22 C 1.38569 * 134.29751 * 180.10537 * 17 15 14 23 23 C 1.34522 * 124.46445 * 120.00026 * 14 12 11 24 24 O 1.21448 * 125.70870 * 359.95946 * 23 14 12 25 25 C 1.53257 * 108.84610 * 54.52216 * 12 11 10 26 26 O 1.42958 * 109.47267 * 60.00272 * 8 7 6 27 27 C 1.41009 * 119.54261 * 179.97438 * 5 4 2 28 28 C 1.40369 * 121.29222 * 180.02562 * 27 5 4 29 29 C 1.36174 * 119.66343 * 179.97438 * 28 27 5 30 30 C 1.39322 * 120.97337 * 359.97144 * 29 28 27 31 31 C 1.36136 * 120.96918 * 0.02562 * 30 29 28 32 32 C 1.40510 * 119.65205 * 0.02562 * 31 30 29 33 33 C 1.40566 * 121.26527 * 180.02562 * 32 31 30 34 34 C 1.36139 * 119.76722 * 179.71952 * 33 32 31 35 35 H 0.96709 * 113.99337 * 300.00145 * 1 2 3 36 36 H 1.09006 * 109.47099 * 239.99662 * 2 1 3 37 37 H 1.48506 * 109.99834 * 300.00610 * 3 2 1 38 38 H 1.48502 * 110.00011 * 61.31874 * 3 2 1 39 39 H 1.08997 * 109.46764 * 300.00221 * 7 6 5 40 40 H 1.09000 * 109.46827 * 59.99736 * 7 6 5 41 41 H 1.08996 * 109.56016 * 61.86712 * 11 10 8 42 42 H 1.08998 * 109.56082 * 182.08590 * 11 10 8 43 43 H 1.07997 * 120.13693 * 180.02562 * 19 18 17 44 44 H 1.07995 * 119.76716 * 180.02562 * 20 19 18 45 45 H 1.07999 * 119.76801 * 180.02562 * 21 20 19 46 46 H 1.08003 * 120.13911 * 0.24011 * 22 17 15 47 47 H 1.08996 * 109.55633 * 65.31515 * 25 12 11 48 48 H 1.08999 * 109.55730 * 185.63672 * 25 12 11 49 49 H 1.07992 * 120.17036 * 359.97438 * 28 27 5 50 50 H 1.08004 * 119.51580 * 179.97438 * 29 28 27 51 51 H 1.07996 * 119.51294 * 180.02562 * 30 29 28 52 52 H 1.08006 * 120.17561 * 179.97438 * 31 30 29 53 53 H 1.07998 * 120.11608 * 359.93712 * 33 32 31 54 54 H 1.08001 * 119.46660 * 180.24378 * 34 33 32 Note: An asterisk (*) indicates this parameter was or will be optimized. Cartesian coordinates (angstroms) NO. Atom X Y Z 1 8 0.0000 0.0000 0.0000 2 6 1.4289 0.0000 0.0000 3 14 2.0501 1.7564 0.0000 4 6 1.9313 -0.7104 1.2304 5 6 1.8657 -2.0737 1.2951 6 8 1.3509 -2.7833 0.2579 7 6 2.2643 -3.2028 -0.7579 8 6 1.5067 -3.9822 -1.8347 9 1 2.2034 -4.3018 -2.6097 10 8 0.8885 -5.1292 -1.2465 11 6 0.1291 -5.9132 -2.1718 12 6 -0.9508 -5.0285 -2.8044 13 1 -1.6622 -4.7173 -2.0395 14 7 -1.6509 -5.7799 -3.8492 15 6 -1.0596 -6.2951 -4.9422 16 8 0.1210 -6.2127 -5.2149 17 6 -2.0869 -6.9806 -5.7544 18 6 -3.3017 -6.8162 -5.0587 19 6 -4.4701 -7.3519 -5.5762 20 6 -4.4357 -8.0457 -6.7758 21 6 -3.2443 -8.2069 -7.4581 22 6 -2.0677 -7.6771 -6.9522 23 6 -2.9706 -6.0405 -3.8448 24 8 -3.7583 -5.6962 -2.9869 25 6 -0.2822 -3.7931 -3.4171 26 8 0.5034 -3.1438 -2.4127 27 6 2.3362 -2.7386 2.4461 28 6 2.2870 -4.1374 2.5513 29 6 2.7511 -4.7453 3.6780 30 6 3.2761 -3.9990 4.7309 31 6 3.3397 -2.6408 4.6636 32 6 2.8691 -1.9789 3.5169 33 6 2.9189 -0.5781 3.4111 34 6 2.4597 0.0313 2.2837 35 1 -0.3932 0.4418 0.7651 36 1 1.7923 -0.5139 -0.8900 37 1 1.5615 2.4679 -1.2085 38 1 1.5881 2.4585 1.2242 39 1 2.7354 -2.3283 -1.2066 40 1 3.0296 -3.8417 -0.3171 41 1 0.7876 -6.2983 -2.9503 42 1 -0.3401 -6.7450 -1.6463 43 1 -5.4038 -7.2286 -5.0476 44 1 -5.3460 -8.4631 -7.1800 45 1 -3.2304 -8.7491 -8.3920 46 1 -1.1398 -7.8058 -7.4898 47 1 0.3607 -4.0979 -4.2428 48 1 -1.0471 -3.1075 -3.7820 49 1 1.8831 -4.7286 1.7429 50 1 2.7117 -5.8217 3.7567 51 1 3.6380 -4.5055 5.6134 52 1 3.7488 -2.0749 5.4875 53 1 3.3232 0.0124 4.2200 54 1 2.5039 1.1076 2.2060 There are 81 doubly filled levels RHF calculation, no. of doubly occupied orbitals= 81 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_7_10544690_13594088.mol2 54 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 15:25:55 Heat of formation + Delta-G solvation = -91.418574 kcal Electronic energy + Delta-G solvation = -45015.798103 eV Core-core repulsion = 39430.877433 eV Total energy + Delta-G solvation = -5584.920670 eV No. of doubly occupied orbitals = 81 and no. of open levels = 1 Molecular weight (most abundant/longest-lived isotopes) = 448.149 amu Computer time = 2.12 seconds Orbital eigenvalues (eV) -43.74860 -41.95254 -41.23485 -39.99986 -39.58747 -39.28756 -38.29458 -37.25627 -37.09338 -36.75421 -34.60658 -33.11338 -32.19535 -31.95184 -31.63399 -30.26513 -29.44055 -27.52926 -26.78711 -26.39193 -25.41795 -24.49440 -23.94462 -23.52367 -23.02800 -22.77031 -22.30600 -21.04865 -19.34029 -19.18433 -19.00958 -18.74375 -18.62578 -18.45136 -17.92263 -17.65673 -17.40957 -17.32683 -16.80036 -16.59119 -16.43396 -16.19836 -16.10567 -15.96911 -15.89189 -15.52779 -15.49803 -15.42134 -15.36782 -15.10017 -15.00081 -14.80029 -14.70015 -14.56442 -14.37707 -14.28564 -13.83594 -13.75026 -13.63618 -13.43957 -13.31069 -12.74031 -12.70401 -12.62059 -12.46438 -12.26993 -12.17965 -12.06612 -11.99390 -11.74062 -11.69134 -11.60029 -11.18114 -10.99062 -10.89364 -10.78340 -10.48152 -10.29065 -10.27747 -9.66460 -8.79863 -4.97048 -1.15284 -0.57383 -0.10157 -0.09194 0.83501 0.84944 0.90159 1.26275 1.54763 1.57482 1.84181 1.92513 2.18114 2.28811 2.39717 2.42863 2.54097 3.02700 3.03889 3.12019 3.18572 3.36949 3.46452 3.50958 3.62389 3.63580 3.71331 3.81261 3.86476 3.92735 3.99804 4.01105 4.01710 4.09767 4.10326 4.11861 4.15780 4.18453 4.23598 4.30137 4.35299 4.36910 4.41379 4.41820 4.45623 4.52581 4.69536 4.77599 4.84746 4.92145 5.05166 5.10944 5.14925 5.15542 5.22116 5.31032 5.34361 5.41462 5.55092 5.57619 5.62635 5.65567 5.73355 5.87987 5.96277 6.29937 6.43664 6.49597 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 O -0.541 6.541 2 C -0.083 4.083 3 Si 0.782 3.218 4 C -0.138 4.138 5 C 0.115 3.885 6 O -0.324 6.324 7 C 0.078 3.922 8 C 0.241 3.759 9 H 0.102 0.898 10 O -0.383 6.383 11 C 0.054 3.946 12 C 0.078 3.922 13 H 0.110 0.890 14 N -0.570 5.570 15 C 0.576 3.424 16 O -0.480 6.480 17 C -0.159 4.159 18 C -0.160 4.160 19 C -0.045 4.045 20 C -0.083 4.083 21 C -0.083 4.083 22 C -0.041 4.041 23 C 0.574 3.426 24 O -0.492 6.492 25 C 0.053 3.947 26 O -0.381 6.381 27 C -0.087 4.087 28 C -0.115 4.115 29 C -0.119 4.119 30 C -0.116 4.116 31 C -0.110 4.110 32 C -0.055 4.055 33 C -0.097 4.097 34 C -0.116 4.116 35 H 0.380 0.620 36 H 0.106 0.894 37 H -0.303 1.303 38 H -0.268 1.268 39 H 0.094 0.906 40 H 0.091 0.909 41 H 0.077 0.923 42 H 0.112 0.888 43 H 0.152 0.848 44 H 0.177 0.823 45 H 0.178 0.822 46 H 0.158 0.842 47 H 0.077 0.923 48 H 0.106 0.894 49 H 0.122 0.878 50 H 0.138 0.862 51 H 0.148 0.852 52 H 0.156 0.844 53 H 0.163 0.837 54 H 0.151 0.849 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 3.007 -3.650 -3.800 6.067 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 O -0.348 6.348 2 C -0.191 4.191 3 Si 0.685 3.315 4 C -0.139 4.139 5 C 0.071 3.929 6 O -0.241 6.241 7 C 0.004 3.996 8 C 0.146 3.854 9 H 0.119 0.881 10 O -0.303 6.303 11 C -0.024 4.024 12 C -0.025 4.025 13 H 0.128 0.872 14 N -0.314 5.314 15 C 0.368 3.632 16 O -0.352 6.352 17 C -0.162 4.162 18 C -0.163 4.163 19 C -0.064 4.064 20 C -0.101 4.101 21 C -0.100 4.100 22 C -0.060 4.060 23 C 0.365 3.635 24 O -0.365 6.365 25 C -0.025 4.025 26 O -0.301 6.301 27 C -0.088 4.088 28 C -0.133 4.133 29 C -0.137 4.137 30 C -0.134 4.134 31 C -0.127 4.127 32 C -0.055 4.055 33 C -0.114 4.114 34 C -0.134 4.134 35 H 0.229 0.771 36 H 0.124 0.876 37 H -0.232 1.232 38 H -0.195 1.195 39 H 0.112 0.888 40 H 0.109 0.891 41 H 0.095 0.905 42 H 0.130 0.870 43 H 0.170 0.830 44 H 0.194 0.806 45 H 0.196 0.804 46 H 0.175 0.825 47 H 0.095 0.905 48 H 0.125 0.875 49 H 0.140 0.860 50 H 0.156 0.844 51 H 0.166 0.834 52 H 0.174 0.826 53 H 0.180 0.820 54 H 0.168 0.832 Dipole moment (debyes) X Y Z Total from point charges 2.987 -2.761 -3.719 5.511 hybrid contribution -1.268 -0.353 0.372 1.368 sum 1.719 -3.114 -3.346 4.884 Atomic orbital electron populations 1.86674 1.18471 1.80288 1.49406 1.25321 0.83661 1.12296 0.97775 0.94155 0.89661 0.70998 0.76656 1.20393 1.01795 0.93410 0.98325 1.18356 0.96862 0.89741 0.87959 1.86145 1.33955 1.72149 1.31841 1.22952 0.91003 0.98789 0.86834 1.23895 0.87890 0.81062 0.92549 0.88055 1.88220 1.66906 1.38343 1.36787 1.22980 0.92277 0.93270 0.93832 1.22528 0.96506 0.93440 0.89990 0.87243 1.46485 1.10452 1.51568 1.22912 1.18748 0.87542 0.76881 0.80072 1.90786 1.15995 1.56371 1.72078 1.20448 0.92727 1.04248 0.98796 1.20417 0.96674 1.03737 0.95499 1.21165 0.96524 0.93130 0.95542 1.21964 1.00519 0.95066 0.92516 1.21983 0.90721 0.96460 1.00865 1.21179 1.01121 0.92220 0.91446 1.18859 0.80863 0.77820 0.85947 1.90826 1.52721 1.51378 1.41527 1.22965 0.95625 0.93431 0.90434 1.88284 1.49072 1.38122 1.54577 1.18585 1.00622 0.94570 0.95002 1.21058 0.99777 0.93258 0.99230 1.21190 0.97843 1.01312 0.93345 1.21262 0.98427 0.94473 0.99250 1.21396 0.99062 0.95151 0.97127 1.18320 0.98850 0.94262 0.94106 1.21363 0.98715 0.92711 0.98641 1.20895 0.98715 1.00814 0.92932 0.77127 0.87640 1.23190 1.19463 0.88769 0.89099 0.90518 0.87006 0.83009 0.80570 0.80421 0.82457 0.90455 0.87541 0.85984 0.84366 0.83402 0.82598 0.81972 0.83202 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 O -0.54 -5.45 12.88 -148.98 -1.92 -7.36 16 2 C -0.08 -0.43 2.32 71.24 0.17 -0.27 16 3 Si 0.78 0.32 30.20 68.60 2.07 2.39 16 4 C -0.14 -0.75 5.24 -20.00 -0.10 -0.85 16 5 C 0.11 1.03 5.67 22.57 0.13 1.16 16 6 O -0.32 -3.61 8.39 -71.78 -0.60 -4.21 16 7 C 0.08 0.39 5.88 71.98 0.42 0.81 16 8 C 0.24 1.50 3.59 71.98 0.26 1.76 16 9 H 0.10 0.14 8.14 -2.38 -0.02 0.12 16 10 O -0.38 -3.35 10.43 -121.89 -1.27 -4.62 16 11 C 0.05 0.32 6.33 72.07 0.46 0.78 16 12 C 0.08 0.59 3.07 45.17 0.14 0.72 16 13 H 0.11 1.23 7.59 -2.39 -0.02 1.21 16 14 N -0.57 -3.68 2.53 -739.57 -1.87 -5.56 16 15 C 0.58 3.06 7.35 86.82 0.64 3.70 16 16 O -0.48 -3.91 15.18 -3.55 -0.05 -3.96 16 17 C -0.16 -0.18 6.41 -20.00 -0.13 -0.31 16 18 C -0.16 -0.35 6.41 -20.00 -0.13 -0.48 16 19 C -0.04 0.16 10.09 22.44 0.23 0.38 16 20 C -0.08 0.76 10.04 22.36 0.22 0.99 16 21 C -0.08 0.80 10.04 22.36 0.22 1.03 16 22 C -0.04 0.20 10.09 22.44 0.23 0.43 16 23 C 0.57 4.52 8.02 86.82 0.70 5.22 16 24 O -0.49 -6.86 17.44 -3.55 -0.06 -6.93 16 25 C 0.05 0.37 6.32 72.07 0.46 0.83 16 26 O -0.38 -3.82 10.43 -121.89 -1.27 -5.10 16 27 C -0.09 -0.72 5.75 -21.23 -0.12 -0.84 16 28 C -0.12 -0.86 9.56 22.31 0.21 -0.65 16 29 C -0.12 -0.43 9.95 22.05 0.22 -0.21 16 30 C -0.12 -0.11 9.95 22.04 0.22 0.11 16 31 C -0.11 -0.10 9.77 22.33 0.22 0.12 16 32 C -0.06 -0.24 5.74 -21.30 -0.12 -0.36 16 33 C -0.10 -0.05 9.77 22.35 0.22 0.17 16 34 C -0.12 -0.14 8.56 22.02 0.19 0.05 16 35 H 0.38 1.47 8.70 -74.05 -0.64 0.82 16 36 H 0.11 0.61 6.41 -2.38 -0.02 0.59 16 37 H -0.30 -2.49 7.11 99.48 0.71 -1.78 16 38 H -0.27 -0.52 6.67 99.48 0.66 0.14 16 39 H 0.09 0.13 7.03 -2.39 -0.02 0.11 16 40 H 0.09 0.19 8.14 -2.39 -0.02 0.17 16 41 H 0.08 0.40 6.72 -2.39 -0.02 0.38 16 42 H 0.11 0.51 8.14 -2.39 -0.02 0.49 16 43 H 0.15 -0.85 8.06 -2.91 -0.02 -0.87 16 44 H 0.18 -2.71 8.06 -2.91 -0.02 -2.73 16 45 H 0.18 -2.86 8.06 -2.91 -0.02 -2.88 16 46 H 0.16 -1.25 8.06 -2.91 -0.02 -1.27 16 47 H 0.08 0.47 6.65 -2.39 -0.02 0.45 16 48 H 0.11 0.70 8.14 -2.39 -0.02 0.68 16 49 H 0.12 1.06 7.62 -2.91 -0.02 1.04 16 50 H 0.14 -0.03 8.06 -2.91 -0.02 -0.05 16 51 H 0.15 -0.61 8.06 -2.91 -0.02 -0.64 16 52 H 0.16 -0.77 8.06 -2.91 -0.02 -0.79 16 53 H 0.16 -0.94 8.06 -2.91 -0.02 -0.97 16 54 H 0.15 -0.46 4.75 -2.91 -0.01 -0.47 16 Total: 0.00 -27.60 449.66 0.29 -27.30 By element: Atomic # 1 Polarization: -6.58 SS G_CDS: 0.34 Total: -6.24 kcal Atomic # 6 Polarization: 9.35 SS G_CDS: 4.93 Total: 14.29 kcal Atomic # 7 Polarization: -3.68 SS G_CDS: -1.87 Total: -5.56 kcal Atomic # 8 Polarization: -27.00 SS G_CDS: -5.18 Total: -32.18 kcal Atomic # 14 Polarization: 0.32 SS G_CDS: 2.07 Total: 2.39 kcal Total: -27.60 0.29 -27.30 kcal The number of atoms in the molecule is 54 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_7_10544690_13594088.mol2 54 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 -64.117 kcal (2) G-P(sol) polarization free energy of solvation -27.596 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -91.713 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy 0.294 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -27.301 kcal (6) G-S(sol) free energy of system = (1) + (5) -91.419 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 2.12 seconds