Wall clock time and date at job start Tue Mar 31 2020 05:41:17 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 1.52997 * 1 3 3 H 1.08998 * 109.47533 * 2 1 4 4 C 1.52992 * 109.47482 * 120.00154 * 2 1 3 5 5 C 1.52997 * 109.47482 * 179.97438 * 4 2 1 6 6 C 1.53006 * 109.47269 * 299.99806 * 5 4 2 7 7 C 1.53005 * 109.46542 * 59.99862 * 6 5 4 8 8 C 1.52997 * 109.47452 * 300.00026 * 7 6 5 9 9 H 1.09001 * 109.46832 * 300.00199 * 8 7 6 10 10 O 1.42895 * 109.47503 * 179.97438 * 8 7 6 11 11 C 1.42898 * 113.99757 * 89.99640 * 10 8 7 12 12 C 1.53006 * 109.47102 * 180.02562 * 11 10 8 13 13 N 1.46502 * 109.47088 * 65.00386 * 12 11 10 14 14 C 1.38104 * 119.99844 * 180.02562 * 13 12 11 15 15 N 1.32861 * 120.81749 * 359.71739 * 14 13 12 16 16 C 1.32124 * 121.19322 * 179.79788 * 15 14 13 17 17 N 1.31503 * 122.64518 * 0.48072 * 16 15 14 18 18 C 1.33195 * 120.68726 * 359.76860 * 17 16 15 19 19 C 1.40821 * 120.81066 * 179.97438 * 14 13 12 20 20 C 1.41164 * 134.69645 * 359.95552 * 19 14 13 21 21 N 1.30252 * 108.47148 * 180.02562 * 20 19 14 22 22 N 1.36314 * 134.62218 * 180.02562 * 18 17 16 23 23 C 1.46505 * 125.87073 * 0.02562 * 22 18 17 24 24 C 1.50703 * 109.47006 * 270.02697 * 23 22 18 25 25 H 1.08003 * 120.00058 * 359.97438 * 24 23 22 26 26 C 1.37872 * 119.99712 * 180.02562 * 24 23 22 27 27 N 1.31519 * 120.00499 * 359.97438 * 26 24 23 28 28 Si 1.86801 * 119.99746 * 179.97438 * 26 24 23 29 29 H 1.48506 * 109.47357 * 90.00139 * 28 26 24 30 30 H 1.48509 * 109.47240 * 209.99387 * 28 26 24 31 31 H 1.48493 * 109.47230 * 329.99474 * 28 26 24 32 32 H 1.09002 * 109.47153 * 299.99629 * 1 2 3 33 33 H 1.09001 * 109.46832 * 179.97438 * 1 2 3 34 34 H 1.09004 * 109.47261 * 59.99801 * 1 2 3 35 35 H 1.09002 * 109.47103 * 300.00247 * 4 2 1 36 36 H 1.09001 * 109.47066 * 60.00169 * 4 2 1 37 37 H 1.09001 * 109.47289 * 60.00300 * 5 4 2 38 38 H 1.09004 * 109.47261 * 180.02562 * 5 4 2 39 39 H 1.09000 * 109.47192 * 179.97438 * 6 5 4 40 40 H 1.08998 * 109.46876 * 300.00443 * 6 5 4 41 41 H 1.09001 * 109.46812 * 60.00243 * 7 6 5 42 42 H 1.09002 * 109.46935 * 179.97438 * 7 6 5 43 43 H 1.08997 * 109.47676 * 300.00264 * 11 10 8 44 44 H 1.08996 * 109.47183 * 60.00500 * 11 10 8 45 45 H 1.09000 * 109.47182 * 185.00267 * 12 11 10 46 46 H 1.09002 * 109.46856 * 305.00248 * 12 11 10 47 47 H 0.97001 * 119.99515 * 359.97438 * 13 12 11 48 48 H 1.08000 * 118.67326 * 180.22674 * 16 15 14 49 49 H 1.08002 * 125.76731 * 359.97438 * 20 19 14 50 50 H 1.09000 * 109.47272 * 30.02187 * 23 22 18 51 51 H 1.08993 * 109.47183 * 150.02450 * 23 22 18 52 52 H 0.97000 * 120.00189 * 179.97438 * 27 26 24 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 1 1.8934 1.0276 0.0000 4 6 2.0400 -0.7212 1.2491 5 6 3.5700 -0.7218 1.2488 6 6 4.0795 -1.4434 -0.0005 7 6 3.5694 -0.7221 -1.2497 8 6 2.0395 -0.7215 -1.2494 9 1 1.6758 -1.7491 -1.2492 10 8 1.5631 -0.0473 -2.4157 11 6 1.3688 -0.9035 -3.5432 12 6 0.8610 -0.0791 -4.7280 13 7 1.8949 0.8740 -5.1387 14 6 1.6625 1.7319 -6.1957 15 7 0.5094 1.7030 -6.8550 16 6 0.2777 2.5230 -7.8647 17 7 1.1627 3.4013 -8.2828 18 6 2.3508 3.5042 -7.6896 19 6 2.6441 2.6552 -6.6046 20 6 3.9496 2.9733 -6.1718 21 7 4.4120 3.9307 -6.9243 22 7 3.4504 4.2876 -7.8780 23 6 3.5999 5.3256 -8.9010 24 6 4.1824 4.7184 -10.1513 25 1 4.4181 3.6648 -10.1807 26 6 4.4154 5.5082 -11.2571 27 7 4.1289 6.7913 -11.2211 28 14 5.1382 4.7557 -12.8066 29 1 4.0393 4.2813 -13.6856 30 1 5.9406 5.7779 -13.5255 31 1 6.0092 3.6101 -12.4407 32 1 -0.3633 0.5138 0.8900 33 1 -0.3633 -1.0277 -0.0005 34 1 -0.3634 0.5139 -0.8900 35 1 1.6767 -0.2074 2.1392 36 1 1.6768 -1.7489 1.2491 37 1 3.9338 0.3057 1.2487 38 1 3.9334 -1.2361 2.1386 39 1 5.1695 -1.4434 -0.0009 40 1 3.7158 -2.4709 -0.0002 41 1 3.9332 0.3054 -1.2498 42 1 3.9328 -1.2359 -2.1397 43 1 2.3149 -1.3754 -3.8084 44 1 0.6368 -1.6717 -3.2943 45 1 0.6284 -0.7438 -5.5600 46 1 -0.0376 0.4636 -4.4344 47 1 2.7424 0.9029 -4.6678 48 1 -0.6754 2.4669 -8.3696 49 1 4.4758 2.5029 -5.3544 50 1 2.6244 5.7563 -9.1268 51 1 4.2652 6.1061 -8.5321 52 1 4.2932 7.3469 -11.9990 RHF calculation, no. of doubly occupied orbitals= 68 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 ZINC000097200184.mol2 52 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Tue Mar 31 2020 05:41:17 Heat of formation + Delta-G solvation = 42.984788 kcal Electronic energy + Delta-G solvation = -31628.301392 eV Core-core repulsion = 27435.385183 eV Total energy + Delta-G solvation = -4192.916209 eV No. of doubly occupied orbitals = 68 Molecular weight (most abundant/longest-lived isotopes) = 359.206 amu Computer time = 1.48 seconds Orbital eigenvalues (eV) -41.31254 -39.91452 -38.45170 -37.36507 -35.86968 -33.71993 -33.01300 -32.39101 -31.25056 -30.81946 -29.88377 -28.23118 -27.12258 -26.50645 -23.92780 -23.68639 -23.06939 -22.59697 -21.86715 -21.64609 -20.28759 -20.03131 -17.86384 -17.45562 -17.25974 -16.63755 -16.36240 -15.84679 -15.67875 -15.18894 -14.97242 -14.80998 -14.73330 -14.41467 -14.13591 -14.05674 -13.71485 -13.60771 -13.45658 -13.27957 -13.03166 -12.84586 -12.60303 -12.32560 -12.11146 -11.90512 -11.86429 -11.60799 -11.44528 -11.29144 -11.14406 -10.99997 -10.95958 -10.89069 -10.75733 -10.72145 -10.63705 -10.26054 -10.03051 -9.79946 -9.74360 -9.19403 -8.62158 -8.56276 -8.15503 -7.56410 -6.18914 -4.25188 1.37671 2.00972 2.99053 3.10016 3.15513 3.26580 3.27252 3.31873 3.37701 4.19762 4.26801 4.33933 4.44466 4.46605 4.54911 4.65353 4.68414 4.79845 4.81833 4.82555 4.84694 4.99051 5.01506 5.04086 5.05484 5.06884 5.16552 5.24673 5.27479 5.33116 5.47940 5.50541 5.52411 5.57676 5.64296 5.66906 5.72847 5.73859 5.78602 5.81846 5.85361 5.95286 6.03133 6.37861 6.73688 6.88008 7.00151 7.07267 7.15501 7.31765 7.56368 7.76202 7.94293 7.98463 8.28828 8.75549 8.88722 9.39558 10.89283 Molecular weight = 359.21amu Principal moments of inertia in cm(-1) A = 0.017590 B = 0.001867 C = 0.001784 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 1591.404062 B =14991.352249 C =15693.420785 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.145 4.145 2 C -0.088 4.088 3 H 0.078 0.922 4 C -0.113 4.113 5 C -0.123 4.123 6 C -0.117 4.117 7 C -0.144 4.144 8 C 0.097 3.903 9 H 0.058 0.942 10 O -0.374 6.374 11 C 0.048 3.952 12 C 0.136 3.864 13 N -0.701 5.701 14 C 0.510 3.490 15 N -0.620 5.620 16 C 0.367 3.633 17 N -0.556 5.556 18 C 0.363 3.637 19 C -0.337 4.337 20 C 0.069 3.931 21 N -0.245 5.245 22 N -0.333 5.333 23 C 0.264 3.736 24 C -0.532 4.532 25 H 0.061 0.939 26 C 0.066 3.934 27 N -0.891 5.891 28 Si 0.907 3.093 29 H -0.277 1.277 30 H -0.283 1.283 31 H -0.273 1.273 32 H 0.053 0.947 33 H 0.049 0.951 34 H 0.065 0.935 35 H 0.067 0.933 36 H 0.062 0.938 37 H 0.064 0.936 38 H 0.062 0.938 39 H 0.065 0.935 40 H 0.061 0.939 41 H 0.073 0.927 42 H 0.064 0.936 43 H 0.055 0.945 44 H 0.065 0.935 45 H 0.082 0.918 46 H 0.076 0.924 47 H 0.411 0.589 48 H 0.194 0.806 49 H 0.181 0.819 50 H 0.059 0.941 51 H 0.054 0.946 52 H 0.267 0.733 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges -6.094 -19.143 25.010 32.080 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 -0.203 4.203 2 C -0.106 4.106 3 H 0.097 0.903 4 C -0.150 4.150 5 C -0.161 4.161 6 C -0.155 4.155 7 C -0.181 4.181 8 C 0.039 3.961 9 H 0.076 0.924 10 O -0.293 6.293 11 C -0.029 4.029 12 C 0.012 3.988 13 N -0.334 5.334 14 C 0.257 3.743 15 N -0.352 5.352 16 C 0.073 3.927 17 N -0.281 5.281 18 C 0.115 3.885 19 C -0.355 4.355 20 C -0.126 4.126 21 N -0.061 5.061 22 N -0.119 5.119 23 C 0.147 3.853 24 C -0.571 4.571 25 H 0.079 0.921 26 C -0.138 4.138 27 N -0.529 5.529 28 Si 0.734 3.266 29 H -0.203 1.203 30 H -0.209 1.209 31 H -0.198 1.198 32 H 0.072 0.928 33 H 0.069 0.931 34 H 0.084 0.916 35 H 0.086 0.914 36 H 0.081 0.919 37 H 0.083 0.917 38 H 0.081 0.919 39 H 0.084 0.916 40 H 0.079 0.921 41 H 0.092 0.908 42 H 0.082 0.918 43 H 0.073 0.927 44 H 0.083 0.917 45 H 0.100 0.900 46 H 0.094 0.906 47 H 0.248 0.752 48 H 0.211 0.789 49 H 0.198 0.802 50 H 0.077 0.923 51 H 0.072 0.928 52 H 0.077 0.923 Dipole moment (debyes) X Y Z Total from point charges -5.987 -17.902 24.048 30.572 hybrid contribution 0.909 -1.065 -0.242 1.421 sum -5.078 -18.967 23.806 30.858 Atomic orbital electron populations 1.21774 0.94641 1.01574 1.02288 1.21193 0.96214 1.00394 0.92845 0.90329 1.21590 0.95519 1.00648 0.97261 1.21583 0.95603 1.01109 0.97786 1.21492 1.00588 0.99181 0.94208 1.22067 0.95859 1.02013 0.98209 1.22121 0.92987 0.95564 0.85419 0.92361 1.87985 1.86462 1.35100 1.19800 1.22853 1.00294 0.93247 0.86546 1.21313 0.91568 0.91531 0.94382 1.44208 1.18972 1.37621 1.32635 1.17907 0.87497 0.84073 0.84819 1.67936 1.20819 1.31578 1.14821 1.24390 0.96622 0.84074 0.87638 1.67506 1.01396 1.26238 1.32940 1.18935 0.89043 0.90177 0.90342 1.19601 0.99362 1.08716 1.07848 1.23350 0.92606 0.96756 0.99848 1.76934 1.13509 1.14828 1.00795 1.49437 1.06604 1.29813 1.26046 1.19783 0.99654 0.83333 0.82555 1.21248 1.43224 0.95918 0.96666 0.92075 1.24901 0.95233 0.94758 0.98858 1.69922 1.47406 1.04797 1.30809 0.86345 0.79115 0.78876 0.82245 1.20281 1.20859 1.19814 0.92786 0.93141 0.91619 0.91430 0.91950 0.91681 0.91882 0.91618 0.92066 0.90843 0.91774 0.92725 0.91718 0.90028 0.90589 0.75218 0.78928 0.80191 0.92273 0.92833 0.92294 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 15. 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 -0.95 9.05 37.16 0.34 -0.62 16 2 C -0.09 -0.57 2.46 -90.62 -0.22 -0.80 16 3 H 0.08 0.61 8.14 -51.93 -0.42 0.19 16 4 C -0.11 -0.59 5.20 -26.74 -0.14 -0.73 16 5 C -0.12 -0.63 5.92 -26.73 -0.16 -0.79 16 6 C -0.12 -0.62 5.92 -26.73 -0.16 -0.78 16 7 C -0.14 -0.90 5.54 -26.73 -0.15 -1.05 16 8 C 0.10 0.65 2.04 -26.73 -0.05 0.59 16 9 H 0.06 0.35 7.79 -51.93 -0.40 -0.05 16 10 O -0.37 -3.11 9.26 -35.23 -0.33 -3.44 16 11 C 0.05 0.33 5.88 37.16 0.22 0.55 16 12 C 0.14 1.25 6.12 -4.04 -0.02 1.22 16 13 N -0.70 -8.12 5.63 -60.08 -0.34 -8.46 16 14 C 0.51 8.12 7.55 -154.85 -1.17 6.95 16 15 N -0.62 -10.10 9.69 -13.62 -0.13 -10.23 16 16 C 0.37 6.31 12.24 -92.12 -1.13 5.19 16 17 N -0.56 -11.99 10.47 -13.97 -0.15 -12.14 16 18 C 0.36 8.22 8.04 -156.23 -1.26 6.96 16 19 C -0.34 -6.33 6.14 -106.82 -0.66 -6.98 16 20 C 0.07 1.22 11.87 -17.11 -0.20 1.02 16 21 N -0.24 -5.38 12.45 30.80 0.38 -4.99 16 22 N -0.33 -8.15 3.63 -61.64 -0.22 -8.37 16 23 C 0.26 7.17 6.19 -5.19 -0.03 7.13 16 24 C -0.53 -15.41 9.39 -34.44 -0.32 -15.73 16 25 H 0.06 1.82 7.81 -52.48 -0.41 1.41 16 26 C 0.07 1.87 5.46 -17.82 -0.10 1.77 16 27 N -0.89 -26.07 13.29 55.43 0.74 -25.34 16 28 Si 0.91 21.95 29.54 -169.99 -5.02 16.93 16 29 H -0.28 -6.62 7.11 56.52 0.40 -6.21 16 30 H -0.28 -6.66 7.11 56.52 0.40 -6.26 16 31 H -0.27 -6.59 7.11 56.52 0.40 -6.18 16 32 H 0.05 0.32 8.14 -51.93 -0.42 -0.10 16 33 H 0.05 0.30 8.14 -51.93 -0.42 -0.13 16 34 H 0.06 0.52 7.68 -51.93 -0.40 0.12 16 35 H 0.07 0.33 8.14 -51.93 -0.42 -0.09 16 36 H 0.06 0.31 8.14 -51.93 -0.42 -0.12 16 37 H 0.06 0.36 8.14 -51.93 -0.42 -0.06 16 38 H 0.06 0.28 8.14 -51.93 -0.42 -0.14 16 39 H 0.07 0.33 8.14 -51.93 -0.42 -0.09 16 40 H 0.06 0.30 8.14 -51.93 -0.42 -0.12 16 41 H 0.07 0.53 8.14 -51.93 -0.42 0.11 16 42 H 0.06 0.39 7.87 -51.93 -0.41 -0.02 16 43 H 0.05 0.34 7.87 -51.93 -0.41 -0.07 16 44 H 0.06 0.35 8.08 -51.93 -0.42 -0.07 16 45 H 0.08 0.74 8.14 -51.93 -0.42 0.31 16 46 H 0.08 0.78 8.14 -51.93 -0.42 0.36 16 47 H 0.41 4.13 8.34 -40.82 -0.34 3.79 16 48 H 0.19 2.51 8.06 -52.49 -0.42 2.09 16 49 H 0.18 2.22 8.06 -52.49 -0.42 1.80 16 50 H 0.06 1.68 8.14 -51.93 -0.42 1.26 16 51 H 0.05 1.50 8.14 -51.93 -0.42 1.08 16 52 H 0.27 7.34 8.31 -40.82 -0.34 7.00 16 LS Contribution 424.15 15.07 6.39 6.39 Total: -1.00 -33.36 424.15 -12.58 -45.95 By element: Atomic # 1 Polarization: 8.48 SS G_CDS: -8.69 Total: -0.21 kcal Atomic # 6 Polarization: 9.13 SS G_CDS: -5.22 Total: 3.91 kcal Atomic # 7 Polarization: -69.81 SS G_CDS: 0.28 Total: -69.53 kcal Atomic # 8 Polarization: -3.11 SS G_CDS: -0.33 Total: -3.44 kcal Atomic # 14 Polarization: 21.95 SS G_CDS: -5.02 Total: 16.93 kcal Total LS contribution 6.39 Total: 6.39 kcal Total: -33.36 -12.58 -45.95 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. ZINC000097200184.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 88.932 kcal (2) G-P(sol) polarization free energy of solvation -33.365 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 55.568 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -12.583 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -45.948 kcal (6) G-S(sol) free energy of system = (1) + (5) 42.985 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.48 seconds