Wall clock time and date at job start Sun Mar 7 2021 08:56:43 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 C 1.52995 * 1 3 3 C 1.52997 * 109.47572 * 2 1 4 4 C 1.52998 * 109.47024 * 187.34609 * 3 2 1 5 5 C 1.52999 * 109.47270 * 67.34295 * 3 2 1 6 6 C 1.50698 * 109.47030 * 171.58189 * 5 3 2 7 7 O 1.21284 * 120.00189 * 113.65773 * 6 5 3 8 8 N 1.34779 * 120.00153 * 293.65545 * 6 5 3 9 9 N 1.36594 * 120.00159 * 174.78635 * 8 6 5 10 10 C 1.46365 * 111.00193 * 345.77522 * 9 8 6 11 11 C 1.52615 * 111.89155 * 203.19703 * 10 9 8 12 12 C 1.53932 * 109.31144 * 283.47549 * 11 10 9 13 13 Si 1.87521 * 106.84950 * 57.20351 * 12 11 10 14 14 C 1.86295 * 110.00454 * 196.90212 * 13 12 11 15 15 C 1.86310 * 110.00172 * 75.50365 * 13 12 11 16 16 C 1.47724 * 111.00163 * 110.12144 * 9 8 6 17 17 N 1.46500 * 109.46941 * 291.58316 * 5 3 2 18 18 C 1.36343 * 125.63637 * 308.24222 * 17 5 3 19 19 C 1.34848 * 108.22101 * 179.97438 * 18 17 5 20 20 C 1.40887 * 107.41612 * 0.26256 * 19 18 17 21 21 C 1.34856 * 107.41891 * 359.56813 * 20 19 18 22 22 C 1.50699 * 125.89387 * 180.15164 * 21 20 19 23 23 O 1.42900 * 109.46670 * 150.32523 * 22 21 20 24 24 Si 1.86296 * 109.47015 * 30.32946 * 22 21 20 25 25 H 1.48498 * 109.47556 * 59.99358 * 24 22 21 26 26 H 1.48498 * 109.47505 * 179.97438 * 24 22 21 27 27 H 1.48503 * 109.46995 * 299.99873 * 24 22 21 28 28 H 1.09003 * 109.47753 * 174.78775 * 1 2 3 29 29 H 1.09002 * 109.47620 * 294.78888 * 1 2 3 30 30 H 1.09002 * 109.47006 * 54.78346 * 1 2 3 31 31 H 1.09006 * 109.47130 * 239.99333 * 2 1 3 32 32 H 1.09000 * 109.47021 * 120.00219 * 2 1 3 33 33 H 1.09001 * 109.46689 * 307.34248 * 3 2 1 34 34 H 1.08993 * 109.47265 * 300.40262 * 4 3 2 35 35 H 1.08994 * 109.47017 * 60.41105 * 4 3 2 36 36 H 1.09005 * 109.46856 * 180.40524 * 4 3 2 37 37 H 1.08998 * 109.46969 * 51.57928 * 5 3 2 38 38 H 0.97003 * 119.99670 * 354.79039 * 8 6 5 39 39 H 1.09005 * 108.99424 * 323.81725 * 10 9 8 40 40 H 1.09002 * 108.99397 * 82.56926 * 10 9 8 41 41 H 1.08997 * 109.49983 * 163.52458 * 11 10 9 42 42 H 1.08999 * 109.53020 * 43.43989 * 11 10 9 43 43 H 1.08998 * 109.97735 * 297.87155 * 12 11 10 44 44 H 1.08998 * 110.05819 * 176.58218 * 12 11 10 45 45 H 1.09001 * 109.47454 * 177.27259 * 14 13 12 46 46 H 1.09005 * 109.47326 * 297.27459 * 14 13 12 47 47 H 1.08993 * 109.47307 * 57.27668 * 14 13 12 48 48 H 1.08997 * 109.46977 * 302.72692 * 15 13 12 49 49 H 1.09002 * 109.47006 * 62.72548 * 15 13 12 50 50 H 1.09000 * 109.47351 * 182.72820 * 15 13 12 51 51 H 1.09001 * 109.94609 * 294.89128 * 16 9 8 52 52 H 1.09001 * 109.94503 * 56.13871 * 16 9 8 53 53 H 1.08008 * 125.89026 * 359.97438 * 18 17 5 54 54 H 1.08002 * 126.29310 * 180.02562 * 19 18 17 55 55 H 1.07998 * 126.29481 * 179.70395 * 20 19 18 56 56 H 1.08997 * 109.47468 * 270.32804 * 22 21 20 57 57 H 0.96700 * 113.99982 * 299.99711 * 23 22 21 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 1.5299 0.0000 0.0000 3 6 2.0401 1.4424 0.0000 4 6 3.5589 1.4462 -0.1844 5 6 1.6862 2.1085 1.3312 6 6 2.3630 3.4523 1.4159 7 8 1.6984 4.4669 1.4207 8 7 3.7069 3.5268 1.4865 9 7 4.3260 4.7440 1.4559 10 6 3.4039 5.7905 1.0121 11 6 4.1441 6.9920 0.4308 12 6 4.7380 7.8281 1.5787 13 14 5.8487 6.6845 2.5660 14 6 6.2070 7.4290 4.2357 15 6 7.4401 6.3887 1.6434 16 6 4.9164 5.0709 2.7700 17 7 0.2346 2.2864 1.4175 18 6 -0.5507 2.8788 0.4734 19 6 -1.8263 2.8539 0.9100 20 6 -1.8278 2.2286 2.1724 21 6 -0.5544 1.8865 2.4551 22 6 -0.0836 1.1887 3.7051 23 8 1.0717 0.4029 3.4054 24 14 -1.4382 0.0820 4.3461 25 1 -1.7814 -0.9291 3.3140 26 1 -0.9742 -0.6061 5.5775 27 1 -2.6388 0.8986 4.6573 28 1 -0.3635 -1.0234 -0.0934 29 1 -0.3634 0.4309 0.9330 30 1 -0.3633 0.5926 -0.8396 31 1 1.8933 -0.5140 -0.8900 32 1 1.8933 -0.5139 0.8900 33 1 1.5735 1.9927 -0.8170 34 1 4.0250 0.8898 0.6286 35 1 3.8104 0.9783 -1.1361 36 1 3.9232 2.4736 -0.1772 37 1 2.0246 1.4787 2.1539 38 1 4.2344 2.7160 1.5590 39 1 2.7410 5.3797 0.2506 40 1 2.8053 6.1195 1.8616 41 1 3.4490 7.6044 -0.1435 42 1 4.9469 6.6454 -0.2198 43 1 3.9385 8.2101 2.2135 44 1 5.3206 8.6563 1.1753 45 1 6.8127 6.7363 4.8201 46 1 6.7489 8.3660 4.1071 47 1 5.2692 7.6203 4.7571 48 1 7.2182 5.9759 0.6593 49 1 7.9748 7.3318 1.5297 50 1 8.0583 5.6855 2.2014 51 1 4.1277 5.1885 3.5131 52 1 5.6023 4.2811 3.0763 53 1 -0.2098 3.2960 -0.4627 54 1 -2.6879 3.2452 0.3894 55 1 -2.6906 2.0532 2.7979 56 1 0.1682 1.9309 4.4626 57 1 0.9207 -0.2796 2.7373 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=0 AM1 1SCF TLIMIT=15 GEO-OK SM5.42R & SOLVNT=WATER s_22_16608516_12360566.mol2 57 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED SCF FIELD WAS ACHIEVED Wall clock time and date at job start Sun Mar 7 2021 08:56:43 Heat of formation + Delta-G solvation = 21.256752 kcal Electronic energy + Delta-G solvation = -34925.946981 eV Core-core repulsion = 30869.693433 eV Total energy + Delta-G solvation = -4056.253548 eV No. of doubly occupied orbitals = 68 Molecular weight (most abundant/longest-lived isotopes) = 367.220 amu Computer time = 1.37 seconds Orbital eigenvalues (eV) -43.12795 -41.66269 -38.30444 -37.93266 -37.50130 -35.15574 -33.07754 -32.17261 -31.09662 -30.65911 -29.33150 -28.33005 -27.89164 -27.48031 -26.08324 -25.17937 -24.06517 -22.87559 -22.24399 -21.56234 -20.95219 -20.45014 -19.21754 -18.23391 -17.97451 -17.52580 -17.12854 -16.65689 -16.07510 -15.83229 -15.60592 -15.28967 -15.13773 -14.85332 -14.68060 -14.57761 -14.44225 -14.37653 -14.26827 -14.14860 -14.00043 -13.91767 -13.78652 -13.51444 -13.31452 -13.18163 -13.15942 -13.09358 -13.07738 -12.76354 -12.43856 -12.33996 -12.25192 -12.03900 -11.99501 -11.95304 -11.85498 -11.71853 -11.60640 -11.53890 -11.03446 -10.76786 -10.66315 -10.33233 -10.11532 -9.53137 -9.10332 -8.90336 0.94660 1.12356 1.29762 1.48752 1.53012 1.55025 1.79075 1.88838 1.95327 2.00417 2.10143 2.23783 2.60260 3.02819 3.18297 3.48143 3.59080 3.64347 3.83136 4.01361 4.10742 4.14163 4.17880 4.22826 4.32601 4.43314 4.48488 4.53340 4.54908 4.62233 4.67050 4.68933 4.73483 4.75006 4.76003 4.77842 4.80178 4.90235 4.93031 4.94488 4.96771 5.06458 5.09295 5.15778 5.23409 5.27482 5.27820 5.32069 5.35474 5.38724 5.49149 5.51311 5.59570 5.72504 5.98620 6.01545 6.22573 6.33325 6.43334 6.46163 7.25143 Net atomic charges, atomic populations, and dipole contributions calculated with CM2 Atom NO. Type Charge No. of electrons 1 C -0.175 4.175 2 C -0.112 4.112 3 C -0.088 4.088 4 C -0.174 4.174 5 C 0.106 3.894 6 C 0.478 3.522 7 O -0.558 6.558 8 N -0.559 5.559 9 N -0.271 5.271 10 C 0.050 3.950 11 C -0.109 4.109 12 C -0.428 4.428 13 Si 1.097 2.903 14 C -0.463 4.463 15 C -0.446 4.446 16 C -0.292 4.292 17 N -0.406 5.406 18 C 0.017 3.983 19 C -0.217 4.217 20 C -0.209 4.209 21 C -0.023 4.023 22 C -0.057 4.057 23 O -0.544 6.544 24 Si 1.006 2.994 25 H -0.252 1.252 26 H -0.263 1.263 27 H -0.261 1.261 28 H 0.053 0.947 29 H 0.067 0.933 30 H 0.043 0.957 31 H 0.078 0.922 32 H 0.084 0.916 33 H 0.067 0.933 34 H 0.083 0.917 35 H 0.077 0.923 36 H 0.074 0.926 37 H 0.165 0.835 38 H 0.436 0.564 39 H 0.076 0.924 40 H 0.033 0.967 41 H 0.063 0.937 42 H 0.083 0.917 43 H 0.062 0.938 44 H 0.086 0.914 45 H 0.076 0.924 46 H 0.077 0.923 47 H 0.061 0.939 48 H 0.073 0.927 49 H 0.072 0.928 50 H 0.075 0.925 51 H 0.037 0.963 52 H 0.107 0.893 53 H 0.154 0.846 54 H 0.138 0.862 55 H 0.143 0.857 56 H 0.119 0.881 57 H 0.387 0.613 For the charges calculated by CM2: Dipole moment (debyes) X Y Z Total from point charges 5.618 -3.929 -0.131 6.856 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 -0.232 4.232 2 C -0.149 4.149 3 C -0.107 4.107 4 C -0.232 4.232 5 C -0.001 4.001 6 C 0.263 3.737 7 O -0.436 6.436 8 N -0.306 5.306 9 N -0.085 5.085 10 C -0.077 4.077 11 C -0.147 4.147 12 C -0.512 4.512 13 Si 1.285 2.715 14 C -0.570 4.570 15 C -0.554 4.554 16 C -0.464 4.464 17 N -0.081 5.081 18 C -0.114 4.114 19 C -0.241 4.241 20 C -0.234 4.234 21 C -0.134 4.134 22 C -0.166 4.166 23 O -0.352 6.352 24 Si 0.827 3.173 25 H -0.175 1.175 26 H -0.187 1.187 27 H -0.185 1.185 28 H 0.072 0.928 29 H 0.086 0.914 30 H 0.062 0.938 31 H 0.096 0.904 32 H 0.102 0.898 33 H 0.086 0.914 34 H 0.102 0.898 35 H 0.096 0.904 36 H 0.092 0.908 37 H 0.181 0.819 38 H 0.283 0.717 39 H 0.095 0.905 40 H 0.051 0.949 41 H 0.081 0.919 42 H 0.102 0.898 43 H 0.081 0.919 44 H 0.104 0.896 45 H 0.095 0.905 46 H 0.096 0.904 47 H 0.081 0.919 48 H 0.092 0.908 49 H 0.091 0.909 50 H 0.094 0.906 51 H 0.056 0.944 52 H 0.125 0.875 53 H 0.172 0.828 54 H 0.156 0.844 55 H 0.160 0.840 56 H 0.137 0.863 57 H 0.238 0.762 Dipole moment (debyes) X Y Z Total from point charges 5.499 -3.511 0.255 6.529 hybrid contribution -1.054 0.252 -0.044 1.085 sum 4.444 -3.259 0.211 5.515 Atomic orbital electron populations 1.22253 0.96405 1.01519 1.03013 1.21596 0.95374 0.94050 1.03867 1.21419 0.98600 0.97360 0.93324 1.22350 0.92421 1.04076 1.04353 1.22148 0.78698 0.94614 1.04630 1.21724 0.83316 0.91904 0.76733 1.90842 1.65566 1.36567 1.50626 1.46262 1.04590 1.06562 1.73220 1.64349 1.25783 0.93422 1.24901 1.22550 0.92994 0.91798 1.00405 1.21381 1.00422 0.94686 0.98227 1.26632 1.09667 1.08784 1.06118 0.78224 0.65673 0.62171 0.65425 1.26255 1.05053 1.07725 1.17968 1.26057 1.15418 1.05158 1.08789 1.28535 1.05974 1.20148 0.91773 1.43614 1.05128 1.44299 1.15092 1.21646 0.90637 1.02933 0.96160 1.20955 0.96653 1.08504 0.97971 1.20844 0.95829 1.07733 0.98972 1.20853 0.90968 1.08524 0.93038 1.24819 0.97777 0.98770 0.95272 1.86349 1.34393 1.50255 1.64203 0.84885 0.75306 0.77613 0.79455 1.17534 1.18694 1.18500 0.92774 0.91414 0.93821 0.90357 0.89777 0.91426 0.89773 0.90443 0.90754 0.81853 0.71720 0.90528 0.94851 0.91882 0.89813 0.91893 0.89551 0.90525 0.90391 0.91943 0.90772 0.90897 0.90615 0.94391 0.87484 0.82831 0.84374 0.83957 0.86320 0.76244 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 -0.17 0.22 8.41 71.98 0.61 0.83 16 2 C -0.11 0.64 5.29 30.59 0.16 0.80 16 3 C -0.09 0.36 2.08 -10.80 -0.02 0.33 16 4 C -0.17 1.32 7.71 71.98 0.55 1.88 16 5 C 0.11 -0.04 2.18 44.24 0.10 0.05 16 6 C 0.48 2.00 6.35 87.66 0.56 2.56 16 7 O -0.56 -6.91 11.40 -3.04 -0.03 -6.94 16 8 N -0.56 0.24 3.77 -173.53 -0.65 -0.42 16 9 N -0.27 -0.31 5.00 -334.13 -1.67 -1.98 16 10 C 0.05 0.29 3.55 86.28 0.31 0.60 16 11 C -0.11 -0.23 5.74 30.78 0.18 -0.05 16 12 C -0.43 0.18 5.04 72.30 0.36 0.55 16 13 Si 1.10 -5.17 11.99 68.60 0.82 -4.34 16 14 C -0.46 1.49 8.65 113.37 0.98 2.47 16 15 C -0.45 2.14 8.65 113.37 0.98 3.12 16 16 C -0.29 0.35 4.86 127.53 0.62 0.97 16 17 N -0.41 -1.50 1.02 -491.51 -0.50 -2.00 16 18 C 0.02 0.11 7.70 83.21 0.64 0.75 16 19 C -0.22 -1.61 10.84 22.14 0.24 -1.37 16 20 C -0.21 -1.31 9.29 22.14 0.21 -1.11 16 21 C -0.02 -0.09 4.17 41.08 0.17 0.08 16 22 C -0.06 0.01 2.99 71.24 0.21 0.23 16 23 O -0.54 1.72 9.78 -148.98 -1.46 0.27 16 24 Si 1.01 -0.79 26.59 68.60 1.82 1.03 16 25 H -0.25 0.05 7.11 99.48 0.71 0.75 16 26 H -0.26 -0.20 7.11 99.48 0.71 0.51 16 27 H -0.26 -0.37 6.82 99.48 0.68 0.31 16 28 H 0.05 -0.09 8.14 -2.39 -0.02 -0.11 16 29 H 0.07 0.04 3.40 -2.39 -0.01 0.03 16 30 H 0.04 0.08 7.55 -2.39 -0.02 0.06 16 31 H 0.08 -0.50 8.14 -2.38 -0.02 -0.52 16 32 H 0.08 -0.78 7.00 -2.39 -0.02 -0.79 16 33 H 0.07 -0.03 7.23 -2.39 -0.02 -0.05 16 34 H 0.08 -0.97 7.76 -2.39 -0.02 -0.99 16 35 H 0.08 -0.61 8.14 -2.39 -0.02 -0.63 16 36 H 0.07 -0.39 5.30 -2.38 -0.01 -0.41 16 37 H 0.16 -0.51 4.93 -2.39 -0.01 -0.52 16 38 H 0.44 -2.71 6.54 -215.50 -1.41 -4.12 16 39 H 0.08 0.75 5.90 -2.45 -0.01 0.74 16 40 H 0.03 0.37 6.77 -2.39 -0.02 0.35 16 41 H 0.06 0.21 8.14 -2.39 -0.02 0.19 16 42 H 0.08 -0.02 7.96 -2.39 -0.02 -0.03 16 43 H 0.06 0.11 7.99 -2.39 -0.02 0.09 16 44 H 0.09 -0.19 7.99 -2.39 -0.02 -0.21 16 45 H 0.08 -0.32 7.96 -2.39 -0.02 -0.34 16 46 H 0.08 -0.29 7.96 -2.38 -0.02 -0.30 16 47 H 0.06 -0.09 7.96 -2.39 -0.02 -0.11 16 48 H 0.07 -0.28 7.96 -2.39 -0.02 -0.30 16 49 H 0.07 -0.36 7.96 -2.39 -0.02 -0.38 16 50 H 0.07 -0.43 7.96 -2.39 -0.02 -0.45 16 51 H 0.04 0.11 7.92 -2.39 -0.02 0.09 16 52 H 0.11 -0.52 7.99 -2.39 -0.02 -0.54 16 53 H 0.15 0.88 7.70 -2.91 -0.02 0.86 16 54 H 0.14 0.78 8.06 -2.91 -0.02 0.75 16 55 H 0.14 0.60 6.71 -2.91 -0.02 0.58 16 56 H 0.12 -0.04 7.96 -2.39 -0.02 -0.06 16 57 H 0.39 -3.10 7.22 -74.06 -0.53 -3.64 16 Total: 0.00 -15.72 414.29 4.83 -10.89 By element: Atomic # 1 Polarization: -8.83 SS G_CDS: -0.36 Total: -9.19 kcal Atomic # 6 Polarization: 5.84 SS G_CDS: 6.85 Total: 12.69 kcal Atomic # 7 Polarization: -1.58 SS G_CDS: -2.82 Total: -4.41 kcal Atomic # 8 Polarization: -5.18 SS G_CDS: -1.49 Total: -6.67 kcal Atomic # 14 Polarization: -5.96 SS G_CDS: 2.65 Total: -3.31 kcal Total: -15.72 4.83 -10.89 kcal The number of atoms in the molecule is 57 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_16608516_12360566.mol2 57 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 32.149 kcal (2) G-P(sol) polarization free energy of solvation -15.719 kcal (3) G-ENP(sol) elect.-nuc.-pol. free energy of system 16.431 kcal (4) G-CDS(sol) cavity-dispersion-solvent structure free energy 4.826 kcal (5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -10.893 kcal (6) G-S(sol) free energy of system = (1) + (5) 21.257 kcal 1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED Total computer time = 1.37 seconds