Wall clock time and date at job start Sat Mar 6 2021 07:29:01 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 O 2 2 C 1.42904 * 1 3 3 Si 1.86298 * 109.46961 * 2 1 4 4 C 1.50705 * 109.47008 * 119.99736 * 2 1 3 5 5 C 1.34537 * 120.20286 * 249.98494 * 4 2 1 6 6 O 1.33716 * 122.86049 * 180.02562 * 5 4 2 7 7 C 1.34886 * 122.40393 * 359.95317 * 6 5 4 8 8 C 1.38944 * 120.98466 * 180.02562 * 7 6 5 9 9 C 1.50698 * 120.04052 * 0.03858 * 8 7 6 10 10 O 1.45202 * 109.46967 * 179.97438 * 9 8 7 11 11 C 1.34230 * 116.99652 * 180.02562 * 10 9 8 12 12 O 1.20820 * 120.00498 * 359.97438 * 11 10 9 13 13 C 1.50701 * 119.99676 * 179.97438 * 11 10 9 14 14 H 1.09000 * 112.85049 * 50.32927 * 13 11 10 15 15 C 1.53782 * 113.61685 * 181.52885 * 13 11 10 16 16 C 1.53778 * 87.08288 * 139.97783 * 15 13 11 17 17 O 1.42907 * 113.61307 * 220.01812 * 16 15 13 18 18 C 1.50701 * 113.61366 * 89.20281 * 16 15 13 19 19 C 1.38219 * 119.98984 * 279.75558 * 18 16 15 20 20 C 1.38267 * 120.02274 * 179.76832 * 19 18 16 21 21 C 1.38190 * 120.01192 * 0.50606 * 20 19 18 22 22 C 1.38376 * 119.98908 * 359.75045 * 21 20 19 23 23 Cl 1.73598 * 120.01257 * 179.97438 * 22 21 20 24 24 C 1.38230 * 119.99225 * 100.03033 * 18 16 15 25 25 C 1.53783 * 113.61338 * 279.13456 * 13 11 10 26 26 C 1.37866 * 119.91614 * 180.02562 * 8 7 6 27 27 C 1.38793 * 120.70548 * 359.97438 * 26 8 7 28 28 Br 1.89099 * 119.86353 * 179.97438 * 27 26 8 29 29 C 1.37889 * 120.27386 * 0.27832 * 27 26 8 30 30 C 1.39347 * 119.52377 * 359.49526 * 29 27 26 31 31 C 1.42000 * 120.20254 * 70.00417 * 4 2 1 32 32 O 1.21923 * 121.40545 * 359.95034 * 31 4 2 33 33 H 0.96695 * 114.00042 * 60.00470 * 1 2 3 34 34 H 1.08997 * 109.47229 * 239.99846 * 2 1 3 35 35 H 1.48507 * 109.99961 * 59.99670 * 3 2 1 36 36 H 1.48496 * 110.00378 * 181.31199 * 3 2 1 37 37 H 1.07999 * 118.57245 * 0.02562 * 5 4 2 38 38 H 1.08999 * 109.47022 * 299.97982 * 9 8 7 39 39 H 1.09000 * 109.47108 * 59.98074 * 9 8 7 40 40 H 1.09002 * 113.61079 * 254.53148 * 15 13 11 41 41 H 1.09005 * 113.61225 * 25.42664 * 15 13 11 42 42 H 0.96703 * 113.99606 * 179.97438 * 17 16 15 43 43 H 1.07996 * 119.98983 * 359.97438 * 19 18 16 44 44 H 1.08005 * 119.99202 * 180.25473 * 20 19 18 45 45 H 1.08006 * 120.00493 * 179.72280 * 21 20 19 46 46 H 1.07997 * 120.01282 * 0.02562 * 24 18 16 47 47 H 1.09003 * 113.61353 * 334.56542 * 25 13 11 48 48 H 1.08993 * 113.61648 * 105.47218 * 25 13 11 49 49 H 1.08000 * 119.64510 * 179.97438 * 26 8 7 50 50 H 1.08000 * 120.23146 * 179.74644 * 29 27 26 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 1.4290 0.0000 0.0000 3 14 2.0500 1.7565 0.0000 4 6 1.9314 -0.7104 1.2305 5 6 2.5322 -0.0169 2.2145 6 8 2.9978 -0.5926 3.3279 7 6 2.8995 -1.9192 3.5512 8 6 3.3933 -2.4865 4.7195 9 6 4.0500 -1.6176 5.7610 10 8 4.4775 -2.4406 6.8783 11 6 5.0847 -1.8148 7.8988 12 8 5.2540 -0.6192 7.8596 13 6 5.5554 -2.6036 9.0935 14 1 6.1535 -3.4723 8.8182 15 6 6.1964 -1.7370 10.1903 16 6 5.4664 -2.6268 11.2102 17 8 4.9258 -1.9033 12.3177 18 6 6.2595 -3.8366 11.6326 19 6 6.2982 -4.9551 10.8215 20 6 7.0295 -6.0637 11.2061 21 6 7.7138 -6.0578 12.4067 22 6 7.6711 -4.9403 13.2217 23 17 8.5298 -4.9325 14.7304 24 6 6.9435 -3.8295 12.8338 25 6 4.4384 -2.9194 10.1021 26 6 3.2815 -3.8452 4.9248 27 6 2.6785 -4.6582 3.9751 28 35 2.5385 -6.5190 4.2809 29 6 2.1867 -4.1155 2.8068 30 6 2.2898 -2.7427 2.5906 31 6 1.7738 -2.1158 1.3584 32 8 1.2340 -2.7764 0.4874 33 1 -0.3933 0.4416 -0.7650 34 1 1.7924 -0.5138 -0.8899 35 1 1.5614 2.4679 1.2085 36 1 3.5345 1.7704 -0.0319 37 1 2.6432 1.0512 2.1002 38 1 4.9156 -1.1189 5.3249 39 1 3.3385 -0.8701 6.1117 40 1 7.2822 -1.8219 10.2350 41 1 5.8514 -0.7030 10.1871 42 1 4.4651 -2.4576 12.9624 43 1 5.7597 -4.9619 9.8854 44 1 7.0628 -6.9359 10.5700 45 1 8.2814 -6.9255 12.7092 46 1 6.9092 -2.9573 13.4698 47 1 3.6119 -2.2093 10.0748 48 1 4.1070 -3.9574 10.0758 49 1 3.6672 -4.2816 5.8343 50 1 1.7213 -4.7493 2.0665 There are 80 doubly filled levels RHF calculation, no. of doubly occupied orbitals= 80 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) 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). Cl: (AM1): M.J.S. DEWAR AND E. G. ZOEBISCH, THEOCHEM, 180, 1 (1988). Br: (AM1): M.J.S. DEWAR AND E. G. ZOEBISCH, THEOCHEM, 180, 1 (1988). 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_1458_17797546_484008.mol2 50 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Sat Mar 6 2021 07:29:01 Heat of formation + Delta-G solvation = -109.889160 kcal Electronic energy + Delta-G solvation = -42152.039209 eV Core-core repulsion = 36344.115610 eV Total energy + Delta-G solvation = -5807.923599 eV No. of doubly occupied orbitals = 80 and no. of open levels = 1 Molecular weight (most abundant/longest-lived isotopes) = 521.010 amu Computer time = 1.94 seconds Orbital eigenvalues (eV) -43.37684 -42.48323 -41.23269 -40.06660 -39.88583 -39.26359 -37.85159 -37.64677 -37.39488 -36.22133 -34.72626 -33.74762 -33.18973 -32.29309 -31.77672 -30.74193 -28.91359 -27.49634 -27.28746 -27.13603 -25.86207 -24.39594 -24.18656 -23.79191 -22.55023 -22.09292 -20.75601 -20.47611 -19.74989 -19.40271 -18.66720 -18.58116 -18.53271 -17.95632 -17.89815 -17.53746 -17.40604 -16.76171 -16.61538 -16.48383 -16.36902 -16.31809 -16.17353 -15.69335 -15.59711 -15.42589 -15.20854 -15.16186 -14.92682 -14.83215 -14.69336 -14.52582 -14.22709 -14.00573 -13.80823 -13.77232 -13.63661 -13.29185 -13.28184 -13.03474 -12.90572 -12.70140 -12.60773 -12.47894 -12.36709 -12.31745 -12.18715 -12.15480 -11.86135 -11.81261 -11.58135 -11.49883 -11.13682 -11.05617 -10.71287 -10.44794 -10.37355 -10.12324 -9.86557 -9.58546 -5.25829 -0.85013 -0.72049 -0.09734 -0.01993 0.03318 0.33133 0.89030 0.97446 0.99745 1.04357 1.22590 1.35316 1.44666 1.60106 2.29725 2.34774 2.67054 2.78899 2.90032 2.95644 3.01245 3.07552 3.14260 3.16813 3.45539 3.51096 3.59555 3.67958 3.68253 3.75080 3.76953 3.79965 3.89157 3.90730 3.97719 4.01787 4.05527 4.17727 4.19389 4.24638 4.37683 4.39964 4.47917 4.50071 4.55967 4.62374 4.63690 4.67643 4.71604 4.76554 4.94027 4.98686 5.06374 5.12172 5.17472 5.19083 5.55412 5.69414 6.39887 6.43001 6.52312 6.55702 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 -0.046 4.046 3 Si 0.679 3.321 4 C -0.262 4.262 5 C 0.132 3.868 6 O -0.212 6.212 7 C 0.162 3.838 8 C -0.105 4.105 9 C 0.117 3.883 10 O -0.353 6.353 11 C 0.478 3.522 12 O -0.494 6.494 13 C -0.112 4.112 14 H 0.133 0.867 15 C -0.095 4.095 16 C 0.151 3.849 17 O -0.537 6.537 18 C -0.093 4.093 19 C -0.110 4.110 20 C -0.103 4.103 21 C -0.105 4.105 22 C -0.033 4.033 23 Cl -0.063 7.063 24 C -0.094 4.094 25 C -0.143 4.143 26 C -0.012 4.012 27 C -0.120 4.120 28 Br -0.023 7.023 29 C 0.004 3.996 30 C -0.210 4.210 31 C 0.435 3.565 32 O -0.438 6.438 33 H 0.385 0.615 34 H 0.082 0.918 35 H -0.243 1.243 36 H -0.246 1.246 37 H 0.194 0.806 38 H 0.095 0.905 39 H 0.095 0.905 40 H 0.089 0.911 41 H 0.114 0.886 42 H 0.383 0.617 43 H 0.136 0.864 44 H 0.137 0.863 45 H 0.136 0.864 46 H 0.141 0.859 47 H 0.104 0.896 48 H 0.092 0.908 49 H 0.162 0.838 50 H 0.157 0.843 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 0.684 0.549 -1.170 1.462 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 -0.347 6.347 2 C -0.157 4.157 3 Si 0.579 3.421 4 C -0.264 4.264 5 C 0.067 3.933 6 O -0.116 6.116 7 C 0.116 3.884 8 C -0.107 4.107 9 C 0.044 3.956 10 O -0.270 6.270 11 C 0.320 3.680 12 O -0.380 6.380 13 C -0.131 4.131 14 H 0.151 0.849 15 C -0.133 4.133 16 C 0.110 3.890 17 O -0.343 6.343 18 C -0.094 4.094 19 C -0.128 4.128 20 C -0.121 4.121 21 C -0.124 4.124 22 C -0.060 4.060 23 Cl -0.034 7.034 24 C -0.112 4.112 25 C -0.180 4.180 26 C -0.031 4.031 27 C -0.200 4.200 28 Br 0.063 6.937 29 C -0.016 4.016 30 C -0.213 4.213 31 C 0.317 3.683 32 O -0.317 6.317 33 H 0.233 0.767 34 H 0.100 0.900 35 H -0.167 1.167 36 H -0.170 1.170 37 H 0.210 0.790 38 H 0.113 0.887 39 H 0.113 0.887 40 H 0.108 0.892 41 H 0.132 0.868 42 H 0.231 0.769 43 H 0.153 0.847 44 H 0.155 0.845 45 H 0.154 0.846 46 H 0.158 0.842 47 H 0.122 0.878 48 H 0.111 0.889 49 H 0.180 0.820 50 H 0.175 0.825 Dipole moment (debyes) X Y Z Total from point charges 1.410 0.789 -0.577 1.716 hybrid contribution -0.160 -0.554 0.177 0.604 sum 1.249 0.235 -0.400 1.333 Atomic orbital electron populations 1.86505 1.16685 1.82031 1.49513 1.24234 0.86322 1.09231 0.95922 0.94375 0.81256 0.78158 0.88288 1.21021 1.09418 0.96622 0.99357 1.23699 0.90093 0.97320 0.82200 1.83105 1.69026 1.21457 1.37967 1.18919 0.95640 0.80153 0.93686 1.18783 1.04350 0.94087 0.93478 1.21519 0.99928 0.90938 0.83253 1.86403 1.69988 1.42367 1.28241 1.23360 0.74418 0.87261 0.82928 1.90724 1.52237 1.15950 1.79078 1.22436 1.00628 1.00632 0.89427 0.84931 1.23082 1.00963 1.00025 0.89189 1.21067 0.92828 0.89536 0.85597 1.86606 1.74895 1.37166 1.35615 1.19836 0.99406 0.95090 0.95071 1.21253 0.99006 0.92508 1.00015 1.21180 0.96276 0.98724 0.95933 1.21214 0.99629 0.97440 0.94089 1.20966 0.98903 0.96322 0.89764 1.98408 1.75585 1.98647 1.30756 1.20898 0.95997 0.97744 0.96584 1.23803 0.96972 1.04208 0.93032 1.21039 0.92855 0.90810 0.98413 1.21838 1.07155 0.92850 0.98140 1.96844 1.97453 1.03100 1.96314 1.21140 0.92357 0.93039 0.95070 1.20702 1.07196 0.95045 0.98341 1.18198 0.77500 0.87732 0.84885 1.90761 1.34083 1.66361 1.40486 0.76738 0.90016 1.16748 1.16964 0.78977 0.88697 0.88698 0.89206 0.86817 0.76873 0.84662 0.84496 0.84584 0.84152 0.87757 0.88948 0.82039 0.82546 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 -0.45 12.86 -35.23 -0.45 -0.90 16 2 C -0.05 0.00 2.45 36.01 0.09 0.09 16 3 Si 0.68 -1.96 30.02 -169.99 -5.10 -7.06 16 4 C -0.26 -0.49 5.35 -104.49 -0.56 -1.05 16 5 C 0.13 0.01 9.99 29.42 0.29 0.30 16 6 O -0.21 -0.08 9.21 5.63 0.05 -0.03 16 7 C 0.16 0.16 6.74 -38.49 -0.26 -0.09 16 8 C -0.11 0.02 5.89 -104.50 -0.62 -0.60 16 9 C 0.12 -0.07 5.38 36.00 0.19 0.12 16 10 O -0.35 0.27 8.68 -39.26 -0.34 -0.07 16 11 C 0.48 0.03 7.48 36.01 0.27 0.30 16 12 O -0.49 -1.56 15.66 -18.75 -0.29 -1.85 16 13 C -0.11 0.26 3.68 -90.96 -0.33 -0.08 16 14 H 0.13 -0.56 6.31 -51.93 -0.33 -0.88 16 15 C -0.10 0.09 6.81 -25.92 -0.18 -0.08 16 16 C 0.15 -0.27 1.78 -90.87 -0.16 -0.44 16 17 O -0.54 0.45 12.76 -35.23 -0.45 0.00 16 18 C -0.09 0.17 5.13 -104.63 -0.54 -0.37 16 19 C -0.11 0.30 8.26 -39.58 -0.33 -0.02 16 20 C -0.10 0.25 10.05 -39.59 -0.40 -0.14 16 21 C -0.11 0.13 9.83 -39.55 -0.39 -0.26 16 22 C -0.03 0.01 6.32 -39.50 -0.25 -0.24 16 23 Cl -0.06 -0.04 28.96 -51.86 -1.50 -1.54 16 24 C -0.09 0.07 9.19 -39.55 -0.36 -0.29 16 25 C -0.14 0.41 6.62 -25.83 -0.17 0.23 16 26 C -0.01 0.01 9.10 -39.51 -0.36 -0.35 16 27 C -0.12 -0.05 6.22 -39.50 -0.25 -0.30 16 28 Br -0.02 0.00 33.69 -68.01 -2.29 -2.29 16 29 C 0.00 0.01 9.40 -39.30 -0.37 -0.36 16 30 C -0.21 -0.49 5.89 -104.85 -0.62 -1.11 16 31 C 0.44 1.72 6.98 -34.34 -0.24 1.49 16 32 O -0.44 -2.90 16.93 4.99 0.08 -2.82 16 33 H 0.38 -1.68 8.74 45.56 0.40 -1.28 16 34 H 0.08 -0.04 7.96 -51.93 -0.41 -0.45 16 35 H -0.24 0.25 6.91 56.52 0.39 0.65 16 36 H -0.25 0.27 7.11 56.52 0.40 0.68 16 37 H 0.19 -0.42 4.64 -52.49 -0.24 -0.67 16 38 H 0.10 -0.08 8.13 -51.93 -0.42 -0.51 16 39 H 0.10 -0.07 8.13 -51.93 -0.42 -0.49 16 40 H 0.09 -0.12 8.09 -51.93 -0.42 -0.54 16 41 H 0.11 0.09 7.45 -51.93 -0.39 -0.30 16 42 H 0.38 -1.51 8.99 45.56 0.41 -1.10 16 43 H 0.14 -0.64 5.16 -52.49 -0.27 -0.91 16 44 H 0.14 -0.60 8.06 -52.48 -0.42 -1.03 16 45 H 0.14 -0.31 8.06 -52.48 -0.42 -0.74 16 46 H 0.14 -0.12 7.67 -52.49 -0.40 -0.53 16 47 H 0.10 -0.21 8.09 -51.93 -0.42 -0.63 16 48 H 0.09 -0.40 6.80 -51.93 -0.35 -0.75 16 49 H 0.16 -0.33 6.96 -52.49 -0.37 -0.70 16 50 H 0.16 0.23 7.81 -52.49 -0.41 -0.18 16 LS Contribution 458.37 15.07 6.91 6.91 Total: 0.00 -10.26 458.37 -13.02 -23.28 By element: Atomic # 1 Polarization: -6.26 SS G_CDS: -4.10 Total: -10.37 kcal Atomic # 6 Polarization: 2.26 SS G_CDS: -5.53 Total: -3.27 kcal Atomic # 8 Polarization: -4.25 SS G_CDS: -1.40 Total: -5.66 kcal Atomic # 14 Polarization: -1.96 SS G_CDS: -5.10 Total: -7.06 kcal Atomic # 17 Polarization: -0.04 SS G_CDS: -1.50 Total: -1.54 kcal Atomic # 35 Polarization: 0.00 SS G_CDS: -2.29 Total: -2.29 kcal Total LS contribution 6.91 Total: 6.91 kcal Total: -10.26 -13.02 -23.28 kcal The number of atoms in the molecule is 50 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_1458_17797546_484008.mol2 50 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 -86.605 kcal (2) G-P(sol) polarization free energy of solvation -10.265 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -96.870 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -13.020 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -23.284 kcal (6) G-S(sol) free energy of system = (1) + (5) -109.889 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.94 seconds