Wall clock time and date at job start Sat Apr 11 2020 06:10:12 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 1.53002 * 1 3 3 C 1.52999 * 109.47308 * 2 1 4 4 C 1.52998 * 109.47515 * 59.99654 * 3 2 1 5 5 C 1.52993 * 109.47192 * 60.00194 * 4 3 2 6 6 C 1.53001 * 109.46786 * 299.99104 * 3 2 1 7 7 C 1.52998 * 109.47543 * 300.00533 * 6 3 2 8 8 C 1.53008 * 109.47007 * 179.97438 * 3 2 1 9 9 N 1.46497 * 109.47076 * 179.97438 * 8 3 2 10 10 C 1.34774 * 120.00160 * 179.97438 * 9 8 3 11 11 O 1.21348 * 119.99666 * 0.02562 * 10 9 8 12 12 C 1.49448 * 120.00247 * 180.02562 * 10 9 8 13 13 O 1.21355 * 120.00006 * 359.97438 * 12 10 9 14 14 N 1.34774 * 120.00247 * 179.97438 * 12 10 9 15 15 C 1.47290 * 125.79121 * 359.97438 * 14 12 10 16 16 C 1.54325 * 107.30599 * 178.92556 * 15 14 12 17 17 C 1.55154 * 102.94303 * 337.81911 * 16 15 14 18 18 O 1.42902 * 111.00280 * 277.42723 * 17 16 15 19 19 C 1.50693 * 111.03939 * 153.59058 * 17 16 15 20 20 H 1.08004 * 120.00401 * 6.33015 * 19 17 16 21 21 C 1.37876 * 120.00383 * 186.33190 * 19 17 16 22 22 N 1.31512 * 119.99646 * 359.97438 * 21 19 17 23 23 Si 1.86803 * 120.00223 * 180.02562 * 21 19 17 24 24 H 1.48503 * 109.47219 * 90.00069 * 23 21 19 25 25 H 1.48500 * 109.47001 * 209.99842 * 23 21 19 26 26 H 1.48498 * 109.46999 * 329.99572 * 23 21 19 27 27 C 1.47425 * 125.65138 * 179.97438 * 14 12 10 28 28 H 1.08995 * 109.47278 * 180.02562 * 1 2 3 29 29 H 1.08998 * 109.46867 * 300.00835 * 1 2 3 30 30 H 1.09008 * 109.46436 * 60.00247 * 1 2 3 31 31 H 1.09001 * 109.47286 * 239.99470 * 2 1 3 32 32 H 1.09007 * 109.46930 * 119.99584 * 2 1 3 33 33 H 1.08999 * 109.46636 * 180.02562 * 4 3 2 34 34 H 1.08998 * 109.46778 * 300.00060 * 4 3 2 35 35 H 1.09008 * 109.47191 * 300.00142 * 5 4 3 36 36 H 1.09003 * 109.47689 * 59.99905 * 5 4 3 37 37 H 1.09001 * 109.47157 * 180.02562 * 5 4 3 38 38 H 1.09011 * 109.46704 * 60.00849 * 6 3 2 39 39 H 1.09001 * 109.47297 * 179.97438 * 6 3 2 40 40 H 1.08998 * 109.46778 * 299.99854 * 7 6 3 41 41 H 1.09002 * 109.47073 * 60.00007 * 7 6 3 42 42 H 1.08999 * 109.47423 * 179.97438 * 7 6 3 43 43 H 1.08998 * 109.46939 * 59.99304 * 8 3 2 44 44 H 1.09001 * 109.46501 * 299.99387 * 8 3 2 45 45 H 0.97005 * 120.00064 * 359.97438 * 9 8 3 46 46 H 1.09004 * 109.85762 * 59.50172 * 15 14 12 47 47 H 1.08995 * 110.00297 * 298.43119 * 15 14 12 48 48 H 1.09002 * 110.72180 * 219.45147 * 16 15 14 49 49 H 1.08997 * 110.72163 * 96.18354 * 16 15 14 50 50 H 0.96703 * 114.00194 * 173.65090 * 18 17 16 51 51 H 0.97010 * 119.99834 * 180.02562 * 22 21 19 52 52 H 1.09002 * 110.36696 * 85.25946 * 27 14 12 53 53 H 1.08995 * 110.36608 * 323.04783 * 27 14 12 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 1.5300 0.0000 0.0000 3 6 2.0401 1.4425 0.0000 4 6 1.5301 2.1638 1.2491 5 6 2.0400 1.4427 2.4984 6 6 1.5302 2.1636 -1.2494 7 6 2.0402 1.4422 -2.4985 8 6 3.5701 1.4424 0.0006 9 7 4.0585 2.8236 0.0000 10 6 5.3836 3.0698 0.0010 11 8 6.1721 2.1474 0.0018 12 6 5.8818 4.4788 0.0009 13 8 5.0933 5.4012 -0.0004 14 7 7.2069 4.7250 0.0024 15 6 8.2721 3.7078 0.0046 16 6 9.6215 4.4561 -0.0220 17 6 9.2396 5.8408 -0.6085 18 8 9.1769 5.7930 -2.0353 19 6 10.2001 6.9068 -0.1483 20 1 11.0771 6.6346 0.4202 21 6 9.9594 8.2298 -0.4530 22 7 8.8917 8.5612 -1.1457 23 14 11.1504 9.5512 0.1169 24 1 12.1920 9.7597 -0.9209 25 1 10.4123 10.8204 0.3392 26 1 11.7938 9.1240 1.3853 27 6 7.8328 6.0598 0.0020 28 1 -0.3633 -1.0276 0.0005 29 1 -0.3633 0.5140 0.8899 30 1 -0.3632 0.5139 -0.8901 31 1 1.8934 -0.5139 -0.8899 32 1 1.8933 -0.5138 0.8901 33 1 1.8931 3.1916 1.2488 34 1 0.4401 2.1639 1.2491 35 1 1.6766 0.4150 2.4985 36 1 3.1300 1.4426 2.4985 37 1 1.6763 1.9564 3.3883 38 1 0.4401 2.1637 -1.2494 39 1 1.8932 3.1914 -1.2492 40 1 3.1302 1.4422 -2.4984 41 1 1.6768 0.4146 -2.4985 42 1 1.6766 1.9557 -3.3886 43 1 3.9338 0.9283 -0.8890 44 1 3.9330 0.9287 0.8910 45 1 3.4282 3.5609 -0.0011 46 1 8.1816 3.0750 -0.8783 47 1 8.2038 3.0984 0.9058 48 1 10.3330 3.9453 -0.6708 49 1 10.0238 4.5617 0.9855 50 1 8.8483 6.6065 -2.4421 51 1 8.7226 9.4920 -1.3604 52 1 7.9161 6.4400 1.0201 53 1 7.2553 6.7494 -0.6136 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 ZINC001326907423.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 06:10:12 Heat of formation + Delta-G solvation = -135.515481 kcal Electronic energy + Delta-G solvation = -31545.326802 eV Core-core repulsion = 27416.488151 eV Total energy + Delta-G solvation = -4128.838651 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 340.220 amu Computer time = 1.42 seconds Orbital eigenvalues (eV) -40.59779 -39.49365 -38.11133 -37.14232 -34.59705 -33.82702 -32.53927 -32.24996 -31.03400 -30.20933 -28.40079 -27.83936 -26.08173 -25.50692 -24.21433 -22.98563 -22.21280 -21.48694 -19.85017 -19.55035 -18.31586 -17.33662 -17.12628 -16.46869 -16.29448 -15.75019 -15.50662 -15.27946 -15.19347 -15.07310 -14.46008 -14.09575 -14.03490 -13.39524 -13.23489 -13.10269 -13.04394 -12.96387 -12.92663 -12.83132 -12.29923 -12.23564 -12.21871 -11.79431 -11.78987 -11.65286 -11.59551 -11.49483 -11.07279 -11.04312 -10.89880 -10.79369 -10.65193 -10.56515 -10.50918 -10.47275 -10.42734 -10.20842 -9.37583 -9.11970 -9.10872 -8.70406 -8.40165 -7.88997 -6.29794 -4.39254 1.84672 2.70634 3.20383 3.27893 3.30402 3.64752 3.93703 4.25692 4.27401 4.42469 4.43103 4.75414 4.83805 4.84435 4.97986 5.06177 5.11849 5.17228 5.24295 5.32687 5.36969 5.37904 5.50231 5.51993 5.58951 5.59985 5.72715 5.77602 5.80180 5.83416 5.84489 5.86378 5.92104 6.00200 6.05385 6.06761 6.07255 6.24694 6.28951 6.38396 6.52591 6.73715 6.81123 6.85513 7.18070 7.27928 7.33817 7.72164 7.91295 8.01464 8.08519 8.48032 8.64969 9.28142 9.36674 10.77377 Molecular weight = 340.22amu Principal moments of inertia in cm(-1) A = 0.023674 B = 0.002399 C = 0.002384 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1182.468329 B =11667.077816 C =11741.079464 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.154 4.154 2 C -0.114 4.114 3 C -0.069 4.069 4 C -0.118 4.118 5 C -0.157 4.157 6 C -0.118 4.118 7 C -0.157 4.157 8 C 0.125 3.875 9 N -0.703 5.703 10 C 0.509 3.491 11 O -0.519 6.519 12 C 0.507 3.493 13 O -0.540 6.540 14 N -0.575 5.575 15 C 0.112 3.888 16 C -0.122 4.122 17 C 0.248 3.752 18 O -0.581 6.581 19 C -0.536 4.536 20 H 0.068 0.932 21 C 0.071 3.929 22 N -0.894 5.894 23 Si 0.904 3.096 24 H -0.278 1.278 25 H -0.285 1.285 26 H -0.272 1.272 27 C 0.092 3.908 28 H 0.052 0.948 29 H 0.058 0.942 30 H 0.058 0.942 31 H 0.068 0.932 32 H 0.067 0.933 33 H 0.064 0.936 34 H 0.069 0.931 35 H 0.057 0.943 36 H 0.058 0.942 37 H 0.053 0.947 38 H 0.069 0.931 39 H 0.064 0.936 40 H 0.058 0.942 41 H 0.057 0.943 42 H 0.053 0.947 43 H 0.073 0.927 44 H 0.073 0.927 45 H 0.410 0.590 46 H 0.070 0.930 47 H 0.064 0.936 48 H 0.076 0.924 49 H 0.078 0.922 50 H 0.381 0.619 51 H 0.270 0.730 52 H 0.067 0.933 53 H 0.091 0.909 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -15.970 -15.035 2.765 22.107 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 -0.211 4.211 2 C -0.152 4.152 3 C -0.069 4.069 4 C -0.156 4.156 5 C -0.214 4.214 6 C -0.156 4.156 7 C -0.214 4.214 8 C 0.002 3.998 9 N -0.358 5.358 10 C 0.290 3.710 11 O -0.394 6.394 12 C 0.289 3.711 13 O -0.419 6.419 14 N -0.307 5.307 15 C -0.010 4.010 16 C -0.160 4.160 17 C 0.208 3.792 18 O -0.389 6.389 19 C -0.574 4.574 20 H 0.086 0.914 21 C -0.133 4.133 22 N -0.532 5.532 23 Si 0.732 3.268 24 H -0.204 1.204 25 H -0.210 1.210 26 H -0.197 1.197 27 C -0.029 4.029 28 H 0.071 0.929 29 H 0.077 0.923 30 H 0.077 0.923 31 H 0.086 0.914 32 H 0.086 0.914 33 H 0.082 0.918 34 H 0.088 0.912 35 H 0.076 0.924 36 H 0.077 0.923 37 H 0.072 0.928 38 H 0.088 0.912 39 H 0.083 0.917 40 H 0.077 0.923 41 H 0.076 0.924 42 H 0.073 0.927 43 H 0.091 0.909 44 H 0.091 0.909 45 H 0.247 0.753 46 H 0.088 0.912 47 H 0.082 0.918 48 H 0.095 0.905 49 H 0.096 0.904 50 H 0.230 0.770 51 H 0.080 0.920 52 H 0.085 0.915 53 H 0.109 0.891 Dipole moment (debyes) X Y Z Total from point charges -15.739 -15.683 2.798 22.394 hybrid contribution 0.034 1.717 0.210 1.730 sum -15.704 -13.965 3.008 21.230 Atomic orbital electron populations 1.21861 0.95559 1.01505 1.02208 1.21570 0.96244 0.94865 1.02501 1.20876 0.93626 0.96646 0.95789 1.21640 1.00958 0.99359 0.93627 1.21885 1.01674 1.00533 0.97319 1.21644 1.00939 0.99380 0.93625 1.21885 1.01729 1.00500 0.97328 1.21566 0.92987 0.82605 1.02685 1.45775 1.06653 1.09432 1.73932 1.20395 0.83034 0.90161 0.77435 1.90721 1.55091 1.45964 1.47614 1.19599 0.82629 0.88771 0.80076 1.90720 1.54471 1.45606 1.51080 1.48713 1.03860 1.11234 1.66847 1.22174 0.86940 0.90340 1.01584 1.22712 0.94984 0.96995 1.01277 1.19639 0.89362 0.90912 0.79298 1.86132 1.89151 1.42798 1.20868 1.21459 1.09014 0.91014 1.35945 0.91391 1.25092 0.95245 0.98933 0.94018 1.69714 1.26024 1.19072 1.38399 0.86388 0.80698 0.80531 0.79210 1.20372 1.21025 1.19680 1.23476 0.96544 0.81081 1.01823 0.92917 0.92346 0.92315 0.91368 0.91404 0.91764 0.91243 0.92374 0.92340 0.92795 0.91250 0.91747 0.92301 0.92389 0.92743 0.90887 0.90915 0.75254 0.91207 0.91768 0.90535 0.90353 0.76965 0.91983 0.91475 0.89115 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 -0.15 -0.89 9.21 37.16 0.34 -0.55 16 2 C -0.11 -0.75 4.28 -26.73 -0.11 -0.87 16 3 C -0.07 -0.54 0.11 -154.51 -0.02 -0.55 16 4 C -0.12 -0.92 4.46 -26.74 -0.12 -1.04 16 5 C -0.16 -1.23 9.21 37.15 0.34 -0.89 16 6 C -0.12 -0.94 4.46 -26.73 -0.12 -1.06 16 7 C -0.16 -1.29 9.21 37.16 0.34 -0.95 16 8 C 0.12 1.30 3.86 -4.04 -0.02 1.28 16 9 N -0.70 -9.19 4.95 -60.73 -0.30 -9.49 16 10 C 0.51 8.66 7.86 -11.59 -0.09 8.57 16 11 O -0.52 -9.50 14.15 5.50 0.08 -9.42 16 12 C 0.51 10.29 7.92 -11.59 -0.09 10.19 16 13 O -0.54 -11.85 16.73 5.49 0.09 -11.76 16 14 N -0.57 -12.29 3.34 -170.81 -0.57 -12.86 16 15 C 0.11 2.19 5.50 -2.92 -0.02 2.18 16 16 C -0.12 -2.50 6.13 -24.90 -0.15 -2.65 16 17 C 0.25 6.02 0.87 -89.63 -0.08 5.94 16 18 O -0.58 -14.83 13.16 -35.23 -0.46 -15.29 16 19 C -0.54 -13.84 8.27 -34.44 -0.28 -14.12 16 20 H 0.07 1.72 7.79 -52.48 -0.41 1.31 16 21 C 0.07 1.82 5.29 -17.82 -0.09 1.72 16 22 N -0.89 -23.53 10.69 55.43 0.59 -22.94 16 23 Si 0.90 20.19 29.54 -169.99 -5.02 15.17 16 24 H -0.28 -6.21 7.11 56.52 0.40 -5.81 16 25 H -0.28 -6.35 7.11 56.52 0.40 -5.95 16 26 H -0.27 -6.00 7.11 56.52 0.40 -5.60 16 27 C 0.09 2.19 5.38 -2.53 -0.01 2.17 16 28 H 0.05 0.28 8.14 -51.93 -0.42 -0.14 16 29 H 0.06 0.33 6.43 -51.93 -0.33 0.00 16 30 H 0.06 0.34 6.43 -51.92 -0.33 0.00 16 31 H 0.07 0.45 6.43 -51.93 -0.33 0.12 16 32 H 0.07 0.44 6.43 -51.93 -0.33 0.11 16 33 H 0.06 0.57 6.86 -51.93 -0.36 0.21 16 34 H 0.07 0.47 6.43 -51.93 -0.33 0.14 16 35 H 0.06 0.40 6.43 -51.92 -0.33 0.06 16 36 H 0.06 0.54 6.43 -51.93 -0.33 0.20 16 37 H 0.05 0.41 8.14 -51.93 -0.42 -0.01 16 38 H 0.07 0.48 6.43 -51.92 -0.33 0.15 16 39 H 0.06 0.59 6.86 -51.93 -0.36 0.23 16 40 H 0.06 0.57 6.43 -51.93 -0.33 0.24 16 41 H 0.06 0.41 6.43 -51.93 -0.33 0.08 16 42 H 0.05 0.44 8.14 -51.93 -0.42 0.02 16 43 H 0.07 0.80 6.43 -51.93 -0.33 0.47 16 44 H 0.07 0.78 6.43 -51.93 -0.33 0.45 16 45 H 0.41 5.13 5.64 -40.82 -0.23 4.90 16 46 H 0.07 1.38 7.59 -51.93 -0.39 0.99 16 47 H 0.06 1.16 7.71 -51.93 -0.40 0.76 16 48 H 0.08 1.51 8.14 -51.93 -0.42 1.08 16 49 H 0.08 1.50 8.03 -51.93 -0.42 1.08 16 50 H 0.38 9.88 7.56 45.56 0.34 10.22 16 51 H 0.27 6.84 8.31 -40.82 -0.34 6.50 16 52 H 0.07 1.64 8.03 -51.93 -0.42 1.22 16 53 H 0.09 2.40 7.32 -51.93 -0.38 2.02 16 LS Contribution 397.30 15.07 5.99 5.99 Total: -1.00 -28.55 397.30 -7.63 -36.18 By element: Atomic # 1 Polarization: 22.88 SS G_CDS: -7.85 Total: 15.04 kcal Atomic # 6 Polarization: 9.56 SS G_CDS: -0.18 Total: 9.38 kcal Atomic # 7 Polarization: -45.01 SS G_CDS: -0.28 Total: -45.28 kcal Atomic # 8 Polarization: -36.18 SS G_CDS: -0.29 Total: -36.48 kcal Atomic # 14 Polarization: 20.19 SS G_CDS: -5.02 Total: 15.17 kcal Total LS contribution 5.99 Total: 5.99 kcal Total: -28.55 -7.63 -36.18 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. ZINC001326907423.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 -99.331 kcal (2) G-P(sol) polarization free energy of solvation -28.551 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -127.882 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -7.634 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -36.185 kcal (6) G-S(sol) free energy of system = (1) + (5) -135.515 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.42 seconds