Wall clock time and date at job start Mon Mar 8 2021 06:32:59 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 O 1.45201 * 1 3 3 C 1.34224 * 117.00171 * 2 1 4 4 O 1.20823 * 120.00386 * 0.02562 * 3 2 1 5 5 C 1.50703 * 120.00098 * 179.97438 * 3 2 1 6 6 N 1.46898 * 109.47378 * 185.47658 * 5 3 2 7 7 C 1.46902 * 110.99845 * 62.44927 * 6 5 3 8 8 C 1.50704 * 109.46815 * 66.05000 * 7 6 5 9 9 C 1.38242 * 119.99582 * 270.27940 * 8 7 6 10 10 C 1.38235 * 119.99313 * 180.27814 * 9 8 7 11 11 C 1.38234 * 120.00329 * 359.46337 * 10 9 8 12 12 C 1.38233 * 120.00123 * 0.25649 * 11 10 9 13 13 C 1.38231 * 120.00175 * 89.99655 * 8 7 6 14 14 C 1.46900 * 111.00285 * 298.49758 * 6 5 3 15 15 H 1.09012 * 112.84972 * 77.33518 * 14 6 5 16 16 C 1.53782 * 113.61768 * 208.52819 * 14 6 5 17 17 C 1.53958 * 87.01739 * 139.95225 * 16 14 6 18 18 H 1.09004 * 113.53478 * 89.19167 * 17 16 14 19 19 N 1.46497 * 113.74227 * 220.05680 * 17 16 14 20 20 C 1.38412 * 120.00143 * 252.59697 * 19 17 16 21 21 N 1.32497 * 119.21539 * 359.73846 * 20 19 17 22 22 C 1.32277 * 120.73791 * 179.71886 * 21 20 19 23 23 C 1.38599 * 119.19645 * 0.53549 * 22 21 20 24 24 C 1.50705 * 120.72096 * 179.71275 * 23 22 21 25 25 O 1.42901 * 109.46844 * 245.02362 * 24 23 22 26 26 Si 1.86294 * 109.46992 * 5.02383 * 24 23 22 27 27 C 1.38605 * 118.56277 * 359.73634 * 23 22 21 28 28 N 1.32284 * 119.19164 * 359.97438 * 27 23 22 29 29 C 1.53780 * 113.61467 * 306.14277 * 14 6 5 30 30 H 1.09000 * 109.47365 * 180.02562 * 1 2 3 31 31 H 1.09004 * 109.46635 * 299.99605 * 1 2 3 32 32 H 1.08994 * 109.47054 * 59.99503 * 1 2 3 33 33 H 1.09005 * 109.46786 * 65.48066 * 5 3 2 34 34 H 1.08999 * 109.47424 * 305.48398 * 5 3 2 35 35 H 1.08996 * 109.47597 * 306.04856 * 7 6 5 36 36 H 1.08995 * 109.47182 * 186.04219 * 7 6 5 37 37 H 1.07990 * 120.00061 * 0.02562 * 9 8 7 38 38 H 1.08004 * 119.99946 * 179.74220 * 10 9 8 39 39 H 1.07999 * 120.00106 * 180.27737 * 11 10 9 40 40 H 1.07996 * 119.99932 * 180.02562 * 12 11 10 41 41 H 1.08003 * 119.99932 * 0.02562 * 13 8 7 42 42 H 1.08994 * 113.61429 * 254.53080 * 16 14 6 43 43 H 1.08995 * 113.61353 * 25.43842 * 16 14 6 44 44 H 0.96998 * 119.99823 * 72.59893 * 19 17 16 45 45 H 1.08001 * 120.39885 * 180.29706 * 22 21 20 46 46 H 1.08996 * 109.47411 * 125.02095 * 24 23 22 47 47 H 0.96703 * 113.99734 * 179.97438 * 25 24 23 48 48 H 1.48498 * 110.00309 * 178.68177 * 26 24 23 49 49 H 1.48506 * 110.00192 * 300.00224 * 26 24 23 50 50 H 1.07999 * 120.40599 * 180.02562 * 27 23 22 51 51 H 1.08994 * 113.61427 * 334.56137 * 29 14 6 52 52 H 1.09000 * 113.61673 * 105.38391 * 29 14 6 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 8 1.4520 0.0000 0.0000 3 6 2.0614 1.1959 0.0000 4 8 1.4035 2.2093 0.0005 5 6 3.5664 1.2748 0.0006 6 7 3.9832 2.6772 0.1326 7 6 3.5299 3.2430 1.4103 8 6 4.2380 2.5501 2.5459 9 6 3.6893 1.4148 3.1125 10 6 4.3359 0.7825 4.1580 11 6 5.5367 1.2790 4.6295 12 6 6.0884 2.4109 4.0590 13 6 5.4391 3.0463 3.0170 14 6 3.4997 3.4790 -0.9993 15 1 2.4418 3.7295 -0.9192 16 6 4.3952 4.6855 -1.3267 17 6 4.1532 4.3599 -2.8119 18 1 3.2744 4.8525 -3.2279 19 7 5.3436 4.5158 -3.6515 20 6 5.4365 5.5819 -4.5294 21 7 4.4375 6.4492 -4.6016 22 6 4.4969 7.4819 -5.4260 23 6 5.6162 7.6438 -6.2272 24 6 5.7172 8.8043 -7.1834 25 8 5.7338 8.3152 -8.5259 26 14 4.2512 9.9301 -6.9506 27 6 6.6405 6.7150 -6.1304 28 7 6.5202 5.7081 -5.2809 29 6 3.8957 2.9091 -2.3716 30 1 -0.3634 -1.0276 0.0005 31 1 -0.3633 0.5138 0.8901 32 1 -0.3633 0.5139 -0.8899 33 1 3.9519 0.8677 -0.9342 34 1 3.9601 0.6983 0.8376 35 1 2.4543 3.0984 1.5106 36 1 3.7573 4.3086 1.4367 37 1 2.7534 1.0243 2.7411 38 1 3.9051 -0.1021 4.6035 39 1 6.0442 0.7824 5.4433 40 1 7.0267 2.7985 4.4272 41 1 5.8699 3.9308 2.5716 42 1 3.9730 5.6404 -1.0137 43 1 5.4317 4.5572 -1.0150 44 1 6.0666 3.8720 -3.5921 45 1 3.6814 8.1882 -5.4769 46 1 6.6352 9.3581 -6.9870 47 1 5.7971 9.0090 -9.1965 48 1 4.3551 11.0951 -7.8655 49 1 2.9930 9.1870 -7.2153 50 1 7.5263 6.8127 -6.7404 51 1 4.7953 2.2944 -2.3460 52 1 3.0711 2.4309 -2.9002 There are 71 doubly filled levels RHF calculation, no. of doubly occupied orbitals= 71 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_27_14927548_12175864.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 06:32:59 Heat of formation + Delta-G solvation = 24.127307 kcal Electronic energy + Delta-G solvation = -35347.638219 eV Core-core repulsion = 30702.014683 eV Total energy + Delta-G solvation = -4645.623536 eV No. of doubly occupied orbitals = 71 and no. of open levels = 1 Molecular weight (most abundant/longest-lived isotopes) = 385.183 amu Computer time = 1.47 seconds Orbital eigenvalues (eV) -42.16287 -41.90402 -40.46080 -39.97287 -38.19846 -37.81005 -36.63483 -35.10776 -34.56902 -32.60109 -32.01386 -31.74838 -30.03836 -28.14470 -27.07200 -26.51677 -26.04188 -25.66885 -23.76330 -23.46411 -22.75768 -22.39850 -21.49879 -20.77451 -19.25917 -18.79454 -18.69411 -18.46877 -17.87273 -17.74710 -17.28149 -17.06411 -16.67232 -16.40471 -16.34773 -16.05366 -16.00686 -15.73061 -15.51874 -15.30572 -15.10119 -14.68525 -14.54881 -14.44368 -14.26855 -13.95539 -13.88416 -13.61492 -13.45453 -13.39939 -13.26030 -13.13584 -12.87557 -12.79677 -12.38459 -12.29725 -12.12994 -11.95303 -11.92086 -11.76339 -11.73331 -11.65302 -11.63312 -11.51995 -11.07971 -10.66399 -9.92074 -9.82452 -9.75833 -9.41793 -8.99654 -5.02612 0.15622 0.26258 0.40215 0.51098 1.09841 1.22320 1.53203 1.70240 1.88123 1.89990 2.61485 2.84120 3.04499 3.21598 3.35250 3.42423 3.50045 3.69294 3.71790 3.77712 3.83144 3.87279 3.90440 3.92810 4.01322 4.06692 4.11874 4.12656 4.17369 4.20347 4.23839 4.33962 4.41755 4.50542 4.55060 4.60342 4.63977 4.68039 4.70902 4.75220 4.78331 4.83299 4.96990 5.03703 5.08980 5.11907 5.14538 5.36551 5.41156 5.53957 5.60834 5.64796 5.77712 5.87107 5.92834 6.10069 6.10559 6.39183 6.51884 6.67102 7.39066 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.034 3.966 2 O -0.361 6.361 3 C 0.429 3.571 4 O -0.506 6.506 5 C 0.053 3.947 6 N -0.487 5.487 7 C 0.078 3.922 8 C -0.082 4.082 9 C -0.119 4.119 10 C -0.118 4.118 11 C -0.119 4.119 12 C -0.119 4.119 13 C -0.097 4.097 14 C 0.046 3.954 15 H 0.100 0.900 16 C -0.136 4.136 17 C 0.143 3.857 18 H 0.121 0.879 19 N -0.681 5.681 20 C 0.568 3.432 21 N -0.561 5.561 22 C 0.201 3.799 23 C -0.248 4.248 24 C -0.054 4.054 25 O -0.538 6.538 26 Si 0.676 3.324 27 C 0.224 3.776 28 N -0.570 5.570 29 C -0.144 4.144 30 H 0.102 0.898 31 H 0.063 0.937 32 H 0.063 0.937 33 H 0.121 0.879 34 H 0.121 0.879 35 H 0.067 0.933 36 H 0.090 0.910 37 H 0.112 0.888 38 H 0.122 0.878 39 H 0.122 0.878 40 H 0.123 0.877 41 H 0.123 0.877 42 H 0.074 0.926 43 H 0.094 0.906 44 H 0.415 0.585 45 H 0.166 0.834 46 H 0.078 0.922 47 H 0.381 0.619 48 H -0.257 1.257 49 H -0.253 1.253 50 H 0.168 0.832 51 H 0.096 0.904 52 H 0.073 0.927 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 0.757 0.561 1.755 1.992 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 -0.060 4.060 2 O -0.276 6.276 3 C 0.271 3.729 4 O -0.394 6.394 5 C -0.077 4.077 6 N -0.210 5.210 7 C -0.049 4.049 8 C -0.082 4.082 9 C -0.137 4.137 10 C -0.136 4.136 11 C -0.137 4.137 12 C -0.137 4.137 13 C -0.115 4.115 14 C -0.062 4.062 15 H 0.118 0.882 16 C -0.176 4.176 17 C 0.037 3.963 18 H 0.138 0.862 19 N -0.317 5.317 20 C 0.212 3.788 21 N -0.283 5.283 22 C 0.033 3.967 23 C -0.256 4.256 24 C -0.165 4.165 25 O -0.345 6.345 26 Si 0.577 3.423 27 C 0.056 3.944 28 N -0.291 5.291 29 C -0.182 4.182 30 H 0.121 0.879 31 H 0.081 0.919 32 H 0.082 0.918 33 H 0.139 0.861 34 H 0.139 0.861 35 H 0.085 0.915 36 H 0.108 0.892 37 H 0.130 0.870 38 H 0.140 0.860 39 H 0.140 0.860 40 H 0.141 0.859 41 H 0.141 0.859 42 H 0.092 0.908 43 H 0.113 0.887 44 H 0.253 0.747 45 H 0.183 0.817 46 H 0.096 0.904 47 H 0.229 0.771 48 H -0.182 1.182 49 H -0.177 1.177 50 H 0.186 0.814 51 H 0.115 0.885 52 H 0.092 0.908 Dipole moment (debyes) X Y Z Total from point charges 0.043 -0.153 2.438 2.443 hybrid contribution -0.336 0.356 -1.697 1.767 sum -0.292 0.203 0.741 0.822 Atomic orbital electron populations 1.23295 0.76208 1.03944 1.02585 1.86562 1.23655 1.33792 1.83582 1.25556 0.93624 0.81624 0.72073 1.90624 1.67432 1.35940 1.45424 1.22313 0.85219 0.93304 1.06861 1.62735 1.56119 0.99911 1.02211 1.21291 0.98439 0.99133 0.86042 1.19744 0.95698 0.95879 0.96890 1.21022 0.99793 0.95755 0.97147 1.21136 0.95647 1.00037 0.96787 1.21206 0.95931 0.96547 0.99992 1.21214 1.00030 0.95911 0.96529 1.21040 0.94273 0.99957 0.96236 1.23262 0.99302 0.94988 0.88693 0.88205 1.23586 1.01150 0.97608 0.95228 1.22331 0.88512 0.96286 0.89198 0.86152 1.44149 1.21897 1.25594 1.40022 1.19425 0.85183 0.87218 0.86998 1.67923 1.29284 1.05755 1.25377 1.22759 0.94668 0.91794 0.87453 1.20592 0.99013 1.02179 1.03779 1.24397 1.10026 0.99149 0.82909 1.86595 1.96196 1.37018 1.14722 0.95242 0.77340 0.78343 0.91390 1.22795 0.96754 0.85478 0.89404 1.67985 1.24964 1.25438 1.10723 1.23542 1.02557 0.96802 0.95343 0.87948 0.91867 0.91815 0.86119 0.86100 0.91451 0.89207 0.87004 0.86021 0.86019 0.85931 0.85875 0.90768 0.88724 0.74675 0.81722 0.90413 0.77109 1.18201 1.17719 0.81442 0.88512 0.90780 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 0.03 -0.03 10.56 101.05 1.07 1.04 16 2 O -0.36 -0.31 10.56 -39.24 -0.41 -0.72 16 3 C 0.43 0.41 6.96 36.01 0.25 0.66 16 4 O -0.51 -1.48 11.65 -18.75 -0.22 -1.70 16 5 C 0.05 -0.04 5.31 -4.98 -0.03 -0.07 16 6 N -0.49 0.20 4.67 -228.54 -1.07 -0.87 16 7 C 0.08 0.03 4.80 -4.97 -0.02 0.01 16 8 C -0.08 -0.06 4.89 -104.62 -0.51 -0.57 16 9 C -0.12 -0.09 7.91 -39.58 -0.31 -0.40 16 10 C -0.12 -0.05 10.05 -39.58 -0.40 -0.45 16 11 C -0.12 -0.05 10.05 -39.58 -0.40 -0.44 16 12 C -0.12 -0.05 10.05 -39.58 -0.40 -0.45 16 13 C -0.10 -0.06 9.70 -39.58 -0.38 -0.44 16 14 C 0.05 -0.02 2.36 -66.90 -0.16 -0.18 16 15 H 0.10 0.14 6.16 -51.92 -0.32 -0.18 16 16 C -0.14 0.07 7.58 -25.83 -0.20 -0.13 16 17 C 0.14 -0.01 4.25 -67.03 -0.28 -0.29 16 18 H 0.12 0.14 7.36 -51.93 -0.38 -0.24 16 19 N -0.68 -0.67 5.51 -54.91 -0.30 -0.97 16 20 C 0.57 1.85 8.43 -322.81 -2.72 -0.87 16 21 N -0.56 -1.79 9.13 -13.93 -0.13 -1.91 16 22 C 0.20 0.33 9.92 -17.23 -0.17 0.16 16 23 C -0.25 -0.31 5.40 -104.35 -0.56 -0.87 16 24 C -0.05 0.04 2.82 36.01 0.10 0.15 16 25 O -0.54 -0.25 12.82 -35.23 -0.45 -0.70 16 26 Si 0.68 -1.04 29.92 -169.99 -5.09 -6.13 16 27 C 0.22 0.46 10.99 -17.22 -0.19 0.27 16 28 N -0.57 -2.02 10.46 -13.93 -0.15 -2.17 16 29 C -0.14 0.17 6.30 -25.92 -0.16 0.00 16 30 H 0.10 -0.30 8.14 -51.93 -0.42 -0.72 16 31 H 0.06 -0.05 8.13 -51.93 -0.42 -0.47 16 32 H 0.06 -0.04 8.13 -51.93 -0.42 -0.46 16 33 H 0.12 -0.27 6.87 -51.93 -0.36 -0.62 16 34 H 0.12 -0.12 5.97 -51.93 -0.31 -0.43 16 35 H 0.07 0.13 5.62 -51.93 -0.29 -0.17 16 36 H 0.09 0.01 7.93 -51.93 -0.41 -0.40 16 37 H 0.11 0.04 7.68 -52.49 -0.40 -0.37 16 38 H 0.12 -0.13 8.06 -52.48 -0.42 -0.55 16 39 H 0.12 -0.14 8.06 -52.49 -0.42 -0.57 16 40 H 0.12 -0.14 8.06 -52.49 -0.42 -0.56 16 41 H 0.12 -0.06 8.06 -52.48 -0.42 -0.48 16 42 H 0.07 -0.01 8.14 -51.93 -0.42 -0.43 16 43 H 0.09 -0.01 8.14 -51.93 -0.42 -0.43 16 44 H 0.42 -0.04 8.84 -40.82 -0.36 -0.40 16 45 H 0.17 -0.12 5.04 -52.49 -0.26 -0.38 16 46 H 0.08 -0.21 7.96 -51.93 -0.41 -0.63 16 47 H 0.38 -1.33 8.74 45.56 0.40 -0.93 16 48 H -0.26 -0.12 7.11 56.52 0.40 0.29 16 49 H -0.25 -0.39 7.06 56.52 0.40 0.01 16 50 H 0.17 -0.02 8.06 -52.49 -0.42 -0.44 16 51 H 0.10 -0.18 7.74 -51.93 -0.40 -0.58 16 52 H 0.07 -0.06 8.14 -51.93 -0.42 -0.48 16 LS Contribution 422.26 15.07 6.36 6.36 Total: 0.00 -8.03 422.26 -14.30 -22.33 By element: Atomic # 1 Polarization: -3.26 SS G_CDS: -7.37 Total: -10.63 kcal Atomic # 6 Polarization: 2.58 SS G_CDS: -5.48 Total: -2.90 kcal Atomic # 7 Polarization: -4.28 SS G_CDS: -1.64 Total: -5.92 kcal Atomic # 8 Polarization: -2.04 SS G_CDS: -1.08 Total: -3.12 kcal Atomic # 14 Polarization: -1.04 SS G_CDS: -5.09 Total: -6.13 kcal Total LS contribution 6.36 Total: 6.36 kcal Total: -8.03 -14.30 -22.33 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_27_14927548_12175864.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 46.457 kcal (2) G-P(sol) polarization free energy of solvation -8.033 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 38.425 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -14.297 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -22.330 kcal (6) G-S(sol) free energy of system = (1) + (5) 24.127 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.48 seconds