Wall clock time and date at job start Wed Apr 1 2020 04:49:39 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 1.53005 * 1 3 3 C 1.53002 * 109.47018 * 2 1 4 4 C 1.53001 * 109.46998 * 119.99727 * 2 1 3 5 5 N 1.46507 * 109.46801 * 67.59979 * 4 2 1 6 6 C 1.35033 * 124.88341 * 119.97323 * 5 4 2 7 7 C 1.35362 * 107.22575 * 179.97438 * 6 5 4 8 8 C 1.41500 * 105.50417 * 359.97438 * 7 6 5 9 9 C 1.47718 * 126.51526 * 180.02562 * 8 7 6 10 10 O 1.21561 * 120.00158 * 5.62176 * 9 8 7 11 11 N 1.34774 * 119.99546 * 185.62070 * 9 8 7 12 12 C 1.46823 * 120.30198 * 176.07461 * 11 9 8 13 13 C 1.52965 * 107.40408 * 235.00927 * 12 11 9 14 14 C 1.53049 * 109.99507 * 298.54635 * 13 12 11 15 15 H 1.08998 * 110.62126 * 289.27834 * 14 13 12 16 16 C 1.51774 * 112.25860 * 52.95276 * 14 13 12 17 17 H 1.09007 * 105.74570 * 207.28299 * 16 14 13 18 18 C 1.53385 * 105.82303 * 95.43340 * 16 14 13 19 19 C 1.54468 * 102.53250 * 29.54302 * 18 16 14 20 20 N 1.46867 * 106.66537 * 332.27163 * 19 18 16 21 21 C 1.36933 * 125.33718 * 195.33462 * 20 19 18 22 22 H 1.08003 * 120.00115 * 182.76276 * 21 20 19 23 23 C 1.38807 * 120.00223 * 2.75506 * 21 20 19 24 24 N 1.31615 * 119.99935 * 4.77549 * 23 21 20 25 25 Si 1.86801 * 120.00109 * 184.77145 * 23 21 20 26 26 H 1.48496 * 109.47353 * 265.00621 * 25 23 21 27 27 H 1.48507 * 109.46867 * 145.00618 * 25 23 21 28 28 H 1.48499 * 109.46991 * 25.00845 * 25 23 21 29 29 C 1.45262 * 120.15744 * 356.31891 * 11 9 8 30 30 N 1.28466 * 124.88452 * 300.25789 * 5 4 2 31 31 H 1.08996 * 109.47343 * 63.25133 * 1 2 3 32 32 H 1.09000 * 109.47376 * 183.25625 * 1 2 3 33 33 H 1.09000 * 109.46993 * 303.25118 * 1 2 3 34 34 H 1.08999 * 109.47207 * 239.99847 * 2 1 3 35 35 H 1.08996 * 109.46681 * 180.02562 * 3 2 1 36 36 H 1.09007 * 109.47253 * 299.99912 * 3 2 1 37 37 H 1.08999 * 109.47256 * 59.99877 * 3 2 1 38 38 H 1.08997 * 109.47292 * 307.59578 * 4 2 1 39 39 H 1.08998 * 109.46833 * 187.59367 * 4 2 1 40 40 H 1.08002 * 126.38387 * 359.95332 * 6 5 4 41 41 H 1.08004 * 127.24699 * 179.97438 * 7 6 5 42 42 H 1.09001 * 109.86941 * 115.53802 * 12 11 9 43 43 H 1.09000 * 109.93183 * 354.51394 * 12 11 9 44 44 H 1.08993 * 109.38646 * 178.38491 * 13 12 11 45 45 H 1.09004 * 109.38218 * 58.70480 * 13 12 11 46 46 H 1.08994 * 110.79919 * 271.28109 * 18 16 14 47 47 H 1.09004 * 110.79845 * 147.80108 * 18 16 14 48 48 H 1.09002 * 110.02036 * 212.97003 * 19 18 16 49 49 H 1.09004 * 110.06133 * 91.59664 * 19 18 16 50 50 H 0.97001 * 120.00316 * 179.97438 * 24 23 21 51 51 H 1.09005 * 108.84896 * 21.98829 * 29 11 9 52 52 H 1.09004 * 107.98373 * 264.71114 * 29 11 9 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 2.0400 1.4425 0.0000 4 6 2.0400 -0.7212 1.2493 5 7 1.7065 -2.1451 1.1614 6 6 2.6073 -3.1511 1.1672 7 6 1.9145 -4.3100 1.0712 8 6 0.5523 -3.9324 1.0088 9 6 -0.6074 -4.8405 0.8977 10 8 -0.4447 -6.0439 0.9538 11 7 -1.8459 -4.3349 0.7340 12 6 -2.9919 -5.2313 0.5367 13 6 -3.6856 -4.8085 -0.7594 14 6 -4.1926 -3.3697 -0.6364 15 1 -5.0368 -3.3175 0.0511 16 6 -3.0997 -2.4103 -0.2019 17 1 -3.6087 -1.5967 0.3151 18 6 -2.5431 -1.7977 -1.4932 19 6 -3.7680 -1.8285 -2.4339 20 7 -4.6101 -2.9478 -1.9924 21 6 -5.6260 -3.5092 -2.7188 22 1 -6.2211 -4.3027 -2.2913 23 6 -5.8913 -3.0584 -4.0046 24 7 -5.1087 -2.1582 -4.5608 25 14 -7.3588 -3.7296 -4.9455 26 1 -6.9199 -4.8534 -5.8112 27 1 -7.9407 -2.6538 -5.7879 28 1 -8.3825 -4.2149 -3.9854 29 6 -2.0548 -2.8974 0.7464 30 7 0.5153 -2.6160 1.0626 31 1 -0.3634 0.4625 -0.9176 32 1 -0.3634 -1.0260 0.0584 33 1 -0.3633 0.5635 0.8594 34 1 1.8934 -0.5138 -0.8900 35 1 3.1300 1.4425 -0.0005 36 1 1.6767 1.9564 -0.8900 37 1 1.6767 1.9564 0.8900 38 1 1.5700 -0.2918 2.1340 39 1 3.1215 -0.6051 1.3198 40 1 3.6804 -3.0497 1.2354 41 1 2.3169 -5.3120 1.0472 42 1 -3.6834 -5.1385 1.3742 43 1 -2.6474 -6.2620 0.4532 44 1 -4.5274 -5.4733 -0.9527 45 1 -2.9782 -4.8734 -1.5862 46 1 -1.7329 -2.4074 -1.8929 47 1 -2.2109 -0.7735 -1.3239 48 1 -3.4446 -1.9880 -3.4626 49 1 -4.3214 -0.8925 -2.3579 50 1 -5.2938 -1.8434 -5.4594 51 1 -1.1136 -2.4027 0.5064 52 1 -2.3441 -2.6081 1.7567 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 ZINC001036728918.mol2 52 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Wed Apr 1 2020 04:49:39 Heat of formation + Delta-G solvation = 88.157932 kcal Electronic energy + Delta-G solvation = -32611.980915 eV Core-core repulsion = 28614.675612 eV Total energy + Delta-G solvation = -3997.305303 eV No. of doubly occupied orbitals = 66 Molecular weight (most abundant/longest-lived isotopes) = 346.211 amu Computer time = 1.31 seconds Orbital eigenvalues (eV) -42.84065 -39.90472 -38.11983 -36.71134 -35.22238 -32.82020 -32.55330 -31.60755 -30.74803 -29.51577 -28.16492 -27.36521 -27.08544 -25.08708 -23.79949 -23.09984 -21.81065 -21.60975 -20.66869 -20.15251 -19.64809 -18.26522 -17.35440 -16.84293 -16.75897 -16.21366 -15.70008 -15.09707 -14.96870 -14.74436 -14.45705 -14.11788 -14.04895 -13.78687 -13.73076 -13.28798 -13.04307 -12.85561 -12.80998 -12.60847 -12.37341 -12.32191 -12.15105 -12.13389 -11.41554 -11.35496 -11.31517 -11.11536 -11.06612 -10.80444 -10.76110 -10.66778 -10.46901 -10.06738 -9.99600 -9.89030 -9.55138 -9.48740 -9.37271 -9.26429 -9.12308 -8.60217 -8.24689 -6.78289 -5.60638 -3.01503 1.57880 2.08230 2.27469 3.26857 3.42591 3.47957 3.49678 3.56438 4.06867 4.32230 4.50848 4.54564 4.58035 4.71059 4.86288 4.97500 5.08195 5.16893 5.26034 5.34439 5.39424 5.44892 5.52649 5.55291 5.57244 5.58460 5.65143 5.69599 5.73664 5.81588 5.89521 5.95199 6.02440 6.05063 6.06511 6.12447 6.34550 6.36992 6.43452 6.47119 6.56821 6.64318 6.73390 6.75716 6.88854 7.07976 7.19384 7.55808 7.64203 7.71436 7.87259 7.91204 8.39293 8.40018 9.27493 9.88038 10.52635 11.43253 Molecular weight = 346.21amu Principal moments of inertia in cm(-1) A = 0.012661 B = 0.003528 C = 0.002928 Principal moments of inertia in units of 10**(-40)*gram-cm**2 A = 2211.014951 B = 7934.419939 C = 9560.100764 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.169 4.169 2 C -0.109 4.109 3 C -0.145 4.145 4 C 0.122 3.878 5 N -0.284 5.284 6 C -0.019 4.019 7 C -0.180 4.180 8 C -0.010 4.010 9 C 0.599 3.401 10 O -0.543 6.543 11 N -0.585 5.585 12 C 0.111 3.889 13 C -0.137 4.137 14 C 0.172 3.828 15 H 0.039 0.961 16 C -0.104 4.104 17 H 0.060 0.940 18 C -0.132 4.132 19 C 0.158 3.842 20 N -0.599 5.599 21 C -0.219 4.219 22 H 0.077 0.923 23 C -0.011 4.011 24 N -0.922 5.922 25 Si 0.911 3.089 26 H -0.290 1.290 27 H -0.291 1.291 28 H -0.282 1.282 29 C 0.099 3.901 30 N -0.252 5.252 31 H 0.061 0.939 32 H 0.090 0.910 33 H 0.055 0.945 34 H 0.077 0.923 35 H 0.055 0.945 36 H 0.065 0.935 37 H 0.059 0.941 38 H 0.095 0.905 39 H 0.101 0.899 40 H 0.179 0.821 41 H 0.161 0.839 42 H 0.065 0.935 43 H 0.088 0.912 44 H 0.069 0.931 45 H 0.067 0.933 46 H 0.053 0.947 47 H 0.060 0.940 48 H 0.093 0.907 49 H 0.011 0.989 50 H 0.250 0.750 51 H 0.130 0.870 52 H 0.049 0.951 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 17.781 5.638 13.668 23.125 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 -0.226 4.226 2 C -0.128 4.128 3 C -0.203 4.203 4 C 0.002 3.998 5 N -0.071 5.071 6 C -0.162 4.162 7 C -0.208 4.208 8 C -0.170 4.170 9 C 0.385 3.615 10 O -0.420 6.420 11 N -0.316 5.316 12 C -0.012 4.012 13 C -0.177 4.177 14 C 0.065 3.935 15 H 0.057 0.943 16 C -0.124 4.124 17 H 0.079 0.921 18 C -0.170 4.170 19 C 0.033 3.967 20 N -0.323 5.323 21 C -0.347 4.347 22 H 0.095 0.905 23 C -0.206 4.206 24 N -0.570 5.570 25 Si 0.741 3.259 26 H -0.217 1.217 27 H -0.218 1.218 28 H -0.207 1.207 29 C -0.025 4.025 30 N -0.088 5.088 31 H 0.080 0.920 32 H 0.108 0.892 33 H 0.074 0.926 34 H 0.096 0.904 35 H 0.074 0.926 36 H 0.085 0.915 37 H 0.078 0.922 38 H 0.113 0.887 39 H 0.120 0.880 40 H 0.196 0.804 41 H 0.178 0.822 42 H 0.084 0.916 43 H 0.107 0.893 44 H 0.088 0.912 45 H 0.086 0.914 46 H 0.072 0.928 47 H 0.078 0.922 48 H 0.111 0.889 49 H 0.029 0.971 50 H 0.061 0.939 51 H 0.146 0.854 52 H 0.068 0.932 Dipole moment (debyes) X Y Z Total from point charges 17.032 6.098 13.497 22.570 hybrid contribution -0.265 -0.727 -0.555 0.952 sum 16.767 5.371 12.942 21.851 Atomic orbital electron populations 1.22307 0.93252 1.04914 1.02126 1.21444 0.98256 0.96368 0.96747 1.21792 1.00733 0.94863 1.02901 1.22224 1.01793 0.74964 1.00846 1.45799 1.03331 1.07691 1.50244 1.22842 0.97322 0.87389 1.08607 1.21731 0.91473 0.99381 1.08168 1.22046 0.95102 0.89933 1.09885 1.16997 0.81279 0.86450 0.76781 1.90749 1.84783 1.14254 1.52182 1.47513 1.06620 1.07875 1.69588 1.21733 0.86537 0.94435 0.98479 1.22395 1.00276 0.99279 0.95795 1.20464 0.93022 0.91301 0.88731 0.94307 1.20720 0.96004 0.98932 0.96722 0.92122 1.22673 0.99996 0.98680 0.95686 1.21538 0.87454 0.89514 0.98174 1.44712 1.37959 1.37205 1.12426 1.19037 1.06005 1.14585 0.95101 0.90527 1.24758 0.99376 0.99429 0.97084 1.69871 1.38414 1.33895 1.14829 0.86110 0.82128 0.77810 0.79808 1.21734 1.21767 1.20723 1.21339 1.02771 0.80000 0.98348 1.73438 1.04811 1.10999 1.19509 0.92038 0.89207 0.92632 0.90412 0.92567 0.91549 0.92188 0.88721 0.88024 0.80355 0.82188 0.91636 0.89342 0.91193 0.91430 0.92816 0.92184 0.88889 0.97089 0.93929 0.85366 0.93223 Number of geometries 1 Number of calculations of the screened coulomb radii 1 The total number of SCF iterations 16. 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 -0.17 -1.69 8.27 37.16 0.31 -1.38 16 2 C -0.11 -0.82 3.10 -90.62 -0.28 -1.10 16 3 C -0.15 -0.81 9.19 37.16 0.34 -0.47 16 4 C 0.12 0.78 5.85 -4.04 -0.02 0.76 16 5 N -0.28 -2.80 3.37 -61.33 -0.21 -3.00 16 6 C -0.02 -0.17 11.40 -17.17 -0.20 -0.37 16 7 C -0.18 -2.18 10.81 -39.37 -0.43 -2.61 16 8 C -0.01 -0.16 6.85 -82.76 -0.57 -0.72 16 9 C 0.60 10.43 7.68 -12.39 -0.10 10.33 16 10 O -0.54 -10.67 16.33 5.31 0.09 -10.59 16 11 N -0.58 -9.84 2.99 -177.80 -0.53 -10.37 16 12 C 0.11 1.85 6.42 -3.88 -0.02 1.83 16 13 C -0.14 -2.67 5.18 -26.72 -0.14 -2.81 16 14 C 0.17 3.55 3.41 -67.69 -0.23 3.32 16 15 H 0.04 0.81 8.14 -51.93 -0.42 0.39 16 16 C -0.10 -1.85 2.45 -92.88 -0.23 -2.07 16 17 H 0.06 1.04 8.05 -51.93 -0.42 0.62 16 18 C -0.13 -2.51 5.92 -25.76 -0.15 -2.66 16 19 C 0.16 3.85 5.74 -3.07 -0.02 3.83 16 20 N -0.60 -15.14 3.05 -164.00 -0.50 -15.64 16 21 C -0.22 -6.05 9.83 -15.06 -0.15 -6.20 16 22 H 0.08 2.05 7.83 -52.48 -0.41 1.64 16 23 C -0.01 -0.31 5.47 -17.43 -0.10 -0.41 16 24 N -0.92 -27.02 10.17 55.49 0.56 -26.45 16 25 Si 0.91 22.28 29.56 -169.99 -5.02 17.26 16 26 H -0.29 -7.12 7.11 56.52 0.40 -6.72 16 27 H -0.29 -7.19 7.11 56.52 0.40 -6.79 16 28 H -0.28 -6.72 7.11 56.52 0.40 -6.32 16 29 C 0.10 1.55 5.57 -6.54 -0.04 1.51 16 30 N -0.25 -3.26 6.47 33.42 0.22 -3.05 16 31 H 0.06 0.65 7.79 -51.93 -0.40 0.25 16 32 H 0.09 1.10 3.07 -51.93 -0.16 0.94 16 33 H 0.05 0.50 8.14 -51.93 -0.42 0.08 16 34 H 0.08 0.68 8.14 -51.93 -0.42 0.26 16 35 H 0.06 0.24 8.14 -51.93 -0.42 -0.18 16 36 H 0.07 0.41 8.14 -51.93 -0.42 -0.01 16 37 H 0.06 0.30 8.14 -51.93 -0.42 -0.12 16 38 H 0.09 0.55 8.13 -51.93 -0.42 0.12 16 39 H 0.10 0.35 8.03 -51.93 -0.42 -0.07 16 40 H 0.18 0.87 8.06 -52.49 -0.42 0.45 16 41 H 0.16 1.78 8.06 -52.48 -0.42 1.36 16 42 H 0.07 0.99 8.14 -51.93 -0.42 0.56 16 43 H 0.09 1.50 7.01 -51.93 -0.36 1.14 16 44 H 0.07 1.37 8.11 -51.93 -0.42 0.95 16 45 H 0.07 1.49 8.14 -51.93 -0.42 1.07 16 46 H 0.05 1.06 8.14 -51.93 -0.42 0.64 16 47 H 0.06 0.99 6.87 -51.93 -0.36 0.64 16 48 H 0.09 2.57 6.10 -51.93 -0.32 2.26 16 49 H 0.01 0.29 8.14 -51.93 -0.42 -0.13 16 50 H 0.25 7.14 8.31 -40.82 -0.34 6.80 16 51 H 0.13 1.92 1.77 -77.81 -0.14 1.78 16 52 H 0.05 0.72 8.14 -51.93 -0.42 0.30 16 LS Contribution 393.16 15.07 5.92 5.92 Total: -1.00 -33.29 393.16 -9.94 -43.23 By element: Atomic # 1 Polarization: 10.34 SS G_CDS: -8.46 Total: 1.88 kcal Atomic # 6 Polarization: 2.81 SS G_CDS: -2.01 Total: 0.80 kcal Atomic # 7 Polarization: -58.05 SS G_CDS: -0.46 Total: -58.51 kcal Atomic # 8 Polarization: -10.67 SS G_CDS: 0.09 Total: -10.59 kcal Atomic # 14 Polarization: 22.28 SS G_CDS: -5.02 Total: 17.26 kcal Total LS contribution 5.92 Total: 5.92 kcal Total: -33.29 -9.94 -43.23 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. ZINC001036728918.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 131.390 kcal (2) G-P(sol) polarization free energy of solvation -33.290 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 98.100 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy -9.942 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -43.232 kcal (6) G-S(sol) free energy of system = (1) + (5) 88.158 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.31 seconds