Wall clock time and date at job start Tue Mar 9 2021 14:11:45 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 * SM5.42R - SM5.42R CALCULATIONS WILL BE PERFORMED * - CHARGE MODEL 2 WILL BE USED (CM2A) * - THE SOLVENT IS WATER ******************************************************************************* 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 1.42900 * 1 3 3 C 1.35991 * 116.99754 * 2 1 4 4 C 1.38517 * 120.07730 * 0.02562 * 3 2 1 5 5 C 1.38288 * 119.99907 * 179.97438 * 4 3 2 6 6 C 1.50703 * 119.92530 * 179.97438 * 5 4 3 7 7 O 1.42895 * 109.47302 * 300.00140 * 6 5 4 8 8 Si 1.86294 * 109.46905 * 180.02562 * 6 5 4 9 9 H 1.48496 * 109.47455 * 60.00286 * 8 6 5 10 10 H 1.48501 * 109.47049 * 180.02562 * 8 6 5 11 11 H 1.48504 * 109.47174 * 299.99694 * 8 6 5 12 12 C 1.38211 * 120.14580 * 359.97438 * 5 4 3 13 13 C 1.38287 * 120.14620 * 359.76646 * 12 5 4 14 14 C 1.38522 * 119.99670 * 0.50858 * 13 12 5 15 15 O 1.35999 * 120.06779 * 179.74794 * 14 13 12 16 16 C 1.42898 * 117.00190 * 359.72486 * 15 14 13 17 17 C 1.50702 * 109.47207 * 180.02562 * 16 15 14 18 18 O 1.21280 * 119.99570 * 0.02562 * 17 16 15 19 19 N 1.34770 * 119.99863 * 179.97438 * 17 16 15 20 20 C 1.46500 * 119.99686 * 179.97438 * 19 17 16 21 21 C 1.50702 * 109.47298 * 180.02562 * 20 19 17 22 22 C 1.38234 * 119.99895 * 269.72894 * 21 20 19 23 23 C 1.38240 * 120.00062 * 180.32314 * 22 21 20 24 24 C 1.38235 * 119.99708 * 359.94741 * 23 22 21 25 25 Si 1.86799 * 119.99567 * 180.02562 * 24 23 22 26 26 C 1.86304 * 109.47028 * 270.01874 * 25 24 23 27 27 C 1.86300 * 109.47557 * 30.01935 * 25 24 23 28 28 C 1.86299 * 109.47132 * 150.02230 * 25 24 23 29 29 C 1.38234 * 120.00204 * 0.02562 * 24 23 22 30 30 C 1.38230 * 119.99885 * 0.02562 * 29 24 23 31 31 H 1.09007 * 109.47405 * 300.00059 * 1 2 3 32 32 H 1.09009 * 109.47304 * 59.99715 * 1 2 3 33 33 H 1.09000 * 109.47690 * 179.97438 * 1 2 3 34 34 H 1.08002 * 120.00131 * 359.95496 * 4 3 2 35 35 H 1.09004 * 109.46843 * 59.99908 * 6 5 4 36 36 H 0.96699 * 113.99896 * 299.99845 * 7 6 5 37 37 H 1.08005 * 119.92444 * 180.02562 * 12 5 4 38 38 H 1.07998 * 119.99510 * 180.25956 * 13 12 5 39 39 H 1.08994 * 109.46877 * 60.00095 * 16 15 14 40 40 H 1.09001 * 109.46887 * 300.00106 * 16 15 14 41 41 H 0.96993 * 120.00490 * 359.97438 * 19 17 16 42 42 H 1.09003 * 109.47105 * 60.00289 * 20 19 17 43 43 H 1.09001 * 109.47682 * 300.00402 * 20 19 17 44 44 H 1.08001 * 120.00299 * 0.24986 * 22 21 20 45 45 H 1.07997 * 119.99868 * 179.97438 * 23 22 21 46 46 H 1.09001 * 109.47205 * 60.00326 * 26 25 24 47 47 H 1.08999 * 109.47227 * 180.02562 * 26 25 24 48 48 H 1.09001 * 109.47246 * 300.00625 * 26 25 24 49 49 H 1.09000 * 109.46574 * 59.99905 * 27 25 24 50 50 H 1.08999 * 109.47152 * 179.97438 * 27 25 24 51 51 H 1.09000 * 109.46711 * 300.00315 * 27 25 24 52 52 H 1.09007 * 109.47223 * 59.99783 * 28 25 24 53 53 H 1.08999 * 109.47337 * 179.97438 * 28 25 24 54 54 H 1.09000 * 109.47073 * 300.00140 * 28 25 24 55 55 H 1.07992 * 119.99701 * 179.97438 * 29 24 23 56 56 H 1.08000 * 120.00356 * 179.97438 * 30 29 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 8 1.4290 0.0000 0.0000 3 6 2.0463 1.2117 0.0000 4 6 1.2934 2.3744 0.0005 5 6 1.9229 3.6057 0.0011 6 6 1.1021 4.8696 0.0011 7 8 0.2781 4.9026 -1.1659 8 14 2.2370 6.3470 0.0011 9 1 3.0937 6.3132 -1.2114 10 1 1.4283 7.5925 0.0017 11 1 3.0937 6.3131 1.2136 12 6 3.3030 3.6797 0.0016 13 6 4.0605 2.5228 0.0065 14 6 3.4363 1.2863 0.0002 15 8 4.1799 0.1476 -0.0002 16 6 5.6007 0.3005 0.0000 17 6 6.2522 -1.0584 -0.0012 18 8 5.5673 -2.0592 -0.0025 19 7 7.5960 -1.1613 -0.0017 20 6 8.2293 -2.4823 -0.0023 21 6 9.7277 -2.3211 -0.0022 22 6 10.4155 -2.2523 -1.1993 23 6 11.7907 -2.1111 -1.1993 24 6 12.4778 -2.0376 -0.0021 25 14 14.3360 -1.8461 -0.0021 26 6 15.1338 -3.5297 0.0012 27 6 14.8641 -0.9117 -1.5249 28 6 14.8634 -0.9061 1.5174 29 6 11.7900 -2.1059 1.1950 30 6 10.4150 -2.2481 1.1949 31 1 -0.3634 0.5139 0.8900 32 1 -0.3634 0.5139 -0.8900 33 1 -0.3634 -1.0276 -0.0005 34 1 0.2148 2.3193 0.0002 35 1 0.4729 4.8943 0.8909 36 1 0.7723 4.8833 -1.9969 37 1 3.7909 4.6433 0.0024 38 1 5.1388 2.5835 0.0111 39 1 5.9068 0.8499 0.8902 40 1 5.9069 0.8507 -0.8898 41 1 8.1438 -0.3609 -0.0018 42 1 7.9228 -3.0319 -0.8923 43 1 7.9235 -3.0324 0.8877 44 1 9.8787 -2.3101 -2.1347 45 1 12.3280 -2.0578 -2.1346 46 1 14.8253 -4.0797 -0.8879 47 1 16.2180 -3.4180 0.0016 48 1 14.8248 -4.0765 0.8921 49 1 14.3973 0.0733 -1.5267 50 1 15.9483 -0.7996 -1.5246 51 1 14.5555 -1.4618 -2.4139 52 1 14.5545 -1.4529 2.4084 53 1 15.9477 -0.7947 1.5176 54 1 14.3966 0.0789 1.5155 55 1 12.3270 -2.0489 2.1302 56 1 9.8776 -2.3018 2.1302 RHF calculation, no. of doubly occupied orbitals= 73 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=WATER s_22_10854838_60476.mol2 56 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Tue Mar 9 2021 14:11:45 Heat of formation + Delta-G solvation = -126.241180 kcal Electronic energy + Delta-G solvation = -34089.161073 eV Core-core repulsion = 29473.707267 eV Total energy + Delta-G solvation = -4615.453805 eV No. of doubly occupied orbitals = 73 Molecular weight (most abundant/longest-lived isotopes) = 403.182 amu Computer time = 1.45 seconds Orbital eigenvalues (eV) -41.84759 -41.01274 -40.02083 -39.27729 -38.87382 -36.94142 -36.07816 -32.68620 -31.94406 -31.85892 -31.46542 -29.79072 -29.33188 -28.46339 -28.27906 -28.26606 -26.72792 -26.04112 -23.59802 -23.44983 -22.59558 -22.09062 -21.70583 -19.83532 -18.80431 -18.44979 -18.11944 -17.60768 -17.38614 -17.20918 -16.77498 -16.72539 -16.29381 -16.08388 -15.98037 -15.83940 -15.81275 -15.40934 -15.25448 -14.94388 -14.52682 -14.32951 -14.16420 -14.02447 -13.90438 -13.89591 -13.79108 -13.69497 -13.59493 -13.44772 -13.39372 -13.14023 -13.10027 -12.95644 -12.68686 -12.62718 -12.55936 -12.19757 -12.16751 -12.04275 -11.99459 -11.91920 -11.58376 -11.20502 -10.88345 -10.75613 -10.74537 -10.41857 -10.31702 -9.79911 -9.79048 -9.65696 -8.93589 0.14884 0.17652 0.24491 0.53573 1.20314 1.38967 1.49349 1.50679 1.55577 1.85699 1.95173 2.04084 2.09940 2.30213 2.53970 2.56186 2.67795 2.98250 3.48996 3.51311 3.65330 3.70223 3.84504 3.85921 3.89353 4.00222 4.05531 4.14033 4.16538 4.25094 4.33202 4.34099 4.36387 4.55929 4.58466 4.60318 4.65120 4.68318 4.75601 4.84775 4.84995 4.89461 4.90833 4.91101 4.91624 4.98141 5.01536 5.08381 5.18673 5.18839 5.34000 5.41586 5.56766 5.59734 5.60155 5.63072 5.68408 5.72700 5.94034 6.13550 6.34404 6.51099 6.71130 7.04619 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C 0.019 3.981 2 O -0.335 6.335 3 C 0.080 3.920 4 C -0.148 4.148 5 C -0.117 4.117 6 C -0.081 4.081 7 O -0.554 6.554 8 Si 0.986 3.014 9 H -0.247 1.247 10 H -0.278 1.278 11 H -0.252 1.252 12 C -0.124 4.124 13 C -0.161 4.161 14 C 0.083 3.917 15 O -0.313 6.313 16 C 0.036 3.964 17 C 0.513 3.487 18 O -0.572 6.572 19 N -0.705 5.705 20 C 0.165 3.835 21 C -0.107 4.107 22 C -0.121 4.121 23 C -0.100 4.100 24 C -0.372 4.372 25 Si 1.128 2.872 26 C -0.467 4.467 27 C -0.462 4.462 28 C -0.462 4.462 29 C -0.100 4.100 30 C -0.121 4.121 31 H 0.066 0.934 32 H 0.066 0.934 33 H 0.110 0.890 34 H 0.148 0.852 35 H 0.123 0.877 36 H 0.389 0.611 37 H 0.146 0.854 38 H 0.171 0.829 39 H 0.126 0.874 40 H 0.126 0.874 41 H 0.419 0.581 42 H 0.068 0.932 43 H 0.068 0.932 44 H 0.126 0.874 45 H 0.138 0.862 46 H 0.066 0.934 47 H 0.073 0.927 48 H 0.065 0.935 49 H 0.070 0.930 50 H 0.073 0.927 51 H 0.071 0.929 52 H 0.071 0.929 53 H 0.073 0.927 54 H 0.070 0.930 55 H 0.138 0.862 56 H 0.126 0.874 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 6.604 5.655 -0.129 8.695 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 -0.075 4.075 2 O -0.249 6.249 3 C 0.034 3.966 4 C -0.166 4.166 5 C -0.118 4.118 6 C -0.190 4.190 7 O -0.361 6.361 8 Si 0.810 3.190 9 H -0.170 1.170 10 H -0.204 1.204 11 H -0.176 1.176 12 C -0.142 4.142 13 C -0.179 4.179 14 C 0.038 3.962 15 O -0.227 6.227 16 C -0.041 4.041 17 C 0.299 3.701 18 O -0.450 6.450 19 N -0.359 5.359 20 C 0.042 3.958 21 C -0.107 4.107 22 C -0.140 4.140 23 C -0.118 4.118 24 C -0.412 4.412 25 Si 1.315 2.685 26 C -0.573 4.573 27 C -0.569 4.569 28 C -0.569 4.569 29 C -0.118 4.118 30 C -0.140 4.140 31 H 0.085 0.915 32 H 0.084 0.916 33 H 0.129 0.871 34 H 0.166 0.834 35 H 0.141 0.859 36 H 0.238 0.762 37 H 0.163 0.837 38 H 0.188 0.812 39 H 0.144 0.856 40 H 0.144 0.856 41 H 0.256 0.744 42 H 0.087 0.913 43 H 0.087 0.913 44 H 0.144 0.856 45 H 0.155 0.845 46 H 0.085 0.915 47 H 0.092 0.908 48 H 0.085 0.915 49 H 0.089 0.911 50 H 0.092 0.908 51 H 0.090 0.910 52 H 0.090 0.910 53 H 0.092 0.908 54 H 0.089 0.911 55 H 0.155 0.845 56 H 0.144 0.856 Dipole moment (debyes) X Y Z Total from point charges 6.125 5.232 0.311 8.062 hybrid contribution -0.235 -0.393 -0.333 0.567 sum 5.890 4.839 -0.022 7.623 Atomic orbital electron populations 1.23311 0.76650 1.05254 1.02285 1.86193 1.23157 1.26558 1.89031 1.18663 0.89745 0.85762 1.02397 1.21029 1.00761 0.90206 1.04626 1.20224 0.94121 0.95340 1.02077 1.25092 1.00648 1.01239 0.92058 1.86479 1.36535 1.96884 1.16189 0.85164 0.76997 0.75210 0.81621 1.16997 1.20406 1.17558 1.21009 0.92931 0.98901 1.01337 1.21319 1.02067 0.89527 1.05011 1.18581 0.88353 0.86358 1.02958 1.86220 1.18041 1.29061 1.89348 1.22733 0.79491 0.94994 1.06923 1.20563 0.82740 0.90940 0.75834 1.90775 1.64017 1.40138 1.50064 1.45747 1.05117 1.10143 1.74925 1.20135 0.88524 0.84524 1.02588 1.19755 0.93677 1.03018 0.94255 1.21350 0.95323 0.99808 0.97482 1.21378 0.93829 0.97437 0.99136 1.27950 1.18548 1.00774 0.93921 0.77143 0.59704 0.65568 0.66121 1.26346 1.07750 1.18891 1.04302 1.26277 1.06080 1.08853 1.15719 1.26279 1.06075 1.08907 1.15672 1.21373 0.93827 0.97442 0.99136 1.21346 0.95328 0.99810 0.97482 0.91547 0.91585 0.87136 0.83437 0.85912 0.76186 0.83672 0.81158 0.85617 0.85600 0.74354 0.91334 0.91347 0.85562 0.84450 0.91522 0.90822 0.91529 0.91060 0.90824 0.90978 0.90986 0.90826 0.91057 0.84457 0.85570 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 0.02 0.05 9.81 113.37 1.11 1.16 16 2 O -0.34 -3.83 10.28 -79.60 -0.82 -4.65 16 3 C 0.08 0.68 6.70 22.57 0.15 0.83 16 4 C -0.15 -0.56 8.60 22.35 0.19 -0.37 16 5 C -0.12 -0.08 5.39 -19.86 -0.11 -0.18 16 6 C -0.08 0.16 2.82 71.24 0.20 0.36 16 7 O -0.55 0.20 12.76 -148.98 -1.90 -1.70 16 8 Si 0.99 -3.22 25.06 68.60 1.72 -1.50 16 9 H -0.25 0.98 7.11 99.48 0.71 1.69 16 10 H -0.28 -0.23 7.11 99.48 0.71 0.47 16 11 H -0.25 0.75 7.11 99.48 0.71 1.46 16 12 C -0.12 0.15 8.66 22.27 0.19 0.34 16 13 C -0.16 0.10 9.04 22.35 0.20 0.30 16 14 C 0.08 0.56 6.70 22.57 0.15 0.71 16 15 O -0.31 -3.10 9.46 -67.13 -0.63 -3.73 16 16 C 0.04 -0.02 5.22 71.24 0.37 0.35 16 17 C 0.51 2.85 7.91 87.66 0.69 3.54 16 18 O -0.57 -10.07 16.50 16.01 0.26 -9.81 16 19 N -0.70 0.73 5.55 -466.79 -2.59 -1.86 16 20 C 0.17 0.26 5.80 85.63 0.50 0.75 16 21 C -0.11 0.04 5.25 -19.87 -0.10 -0.06 16 22 C -0.12 0.12 9.70 22.27 0.22 0.34 16 23 C -0.10 0.24 9.29 22.27 0.21 0.45 16 24 C -0.37 1.26 4.59 22.27 0.10 1.37 16 25 Si 1.13 -8.48 12.32 68.60 0.85 -7.64 16 26 C -0.47 2.05 8.65 113.37 0.98 3.03 16 27 C -0.46 2.83 8.53 113.37 0.97 3.80 16 28 C -0.46 2.83 8.53 113.37 0.97 3.79 16 29 C -0.10 0.24 9.29 22.27 0.21 0.45 16 30 C -0.12 0.12 9.70 22.27 0.22 0.34 16 31 H 0.07 -0.02 7.66 -2.38 -0.02 -0.04 16 32 H 0.07 0.00 7.66 -2.38 -0.02 -0.02 16 33 H 0.11 -0.02 8.14 -2.39 -0.02 -0.04 16 34 H 0.15 0.23 6.30 -2.91 -0.02 0.21 16 35 H 0.12 -0.40 7.96 -2.39 -0.02 -0.42 16 36 H 0.39 -2.57 8.70 -74.06 -0.64 -3.21 16 37 H 0.15 -0.81 4.87 -2.91 -0.01 -0.82 16 38 H 0.17 -1.41 6.30 -2.91 -0.02 -1.43 16 39 H 0.13 -0.92 7.65 -2.39 -0.02 -0.94 16 40 H 0.13 -0.93 7.68 -2.39 -0.02 -0.95 16 41 H 0.42 -3.15 8.46 -92.71 -0.78 -3.94 16 42 H 0.07 0.26 8.08 -2.39 -0.02 0.24 16 43 H 0.07 0.26 8.08 -2.39 -0.02 0.24 16 44 H 0.13 -0.35 8.06 -2.91 -0.02 -0.37 16 45 H 0.14 -0.83 7.43 -2.91 -0.02 -0.86 16 46 H 0.07 -0.24 7.96 -2.39 -0.02 -0.25 16 47 H 0.07 -0.35 7.96 -2.39 -0.02 -0.37 16 48 H 0.07 -0.23 7.96 -2.39 -0.02 -0.25 16 49 H 0.07 -0.42 7.96 -2.39 -0.02 -0.44 16 50 H 0.07 -0.44 7.96 -2.39 -0.02 -0.46 16 51 H 0.07 -0.45 7.69 -2.39 -0.02 -0.47 16 52 H 0.07 -0.45 7.69 -2.38 -0.02 -0.47 16 53 H 0.07 -0.44 7.96 -2.39 -0.02 -0.46 16 54 H 0.07 -0.42 7.96 -2.39 -0.02 -0.43 16 55 H 0.14 -0.83 7.43 -2.91 -0.02 -0.85 16 56 H 0.13 -0.34 8.06 -2.91 -0.02 -0.37 16 Total: 0.00 -27.68 463.08 4.53 -23.15 By element: Atomic # 1 Polarization: -13.79 SS G_CDS: 0.23 Total: -13.55 kcal Atomic # 6 Polarization: 13.88 SS G_CDS: 7.42 Total: 21.30 kcal Atomic # 7 Polarization: 0.73 SS G_CDS: -2.59 Total: -1.86 kcal Atomic # 8 Polarization: -16.80 SS G_CDS: -3.09 Total: -19.89 kcal Atomic # 14 Polarization: -11.70 SS G_CDS: 2.56 Total: -9.14 kcal Total: -27.68 4.53 -23.15 kcal The number of atoms in the molecule is 56 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_22_10854838_60476.mol2 56 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 -103.093 kcal (2) G-P(sol) polarization free energy of solvation -27.680 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system -130.773 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy 4.532 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -23.148 kcal (6) G-S(sol) free energy of system = (1) + (5) -126.241 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.45 seconds