Wall clock time and date at job start Sat Apr 11 2020 06:46:29
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 1.53000 * 1
3 3 C 1.50700 * 109.46945 * 2 1
4 4 C 1.38242 * 120.00234 * 90.00086 * 3 2 1
5 5 C 1.38236 * 119.99702 * 179.97438 * 4 3 2
6 6 C 1.38226 * 120.00140 * 359.97438 * 5 4 3
7 7 C 1.50704 * 119.99937 * 180.02562 * 6 5 4
8 8 C 1.50696 * 109.47464 * 89.99935 * 7 6 5
9 9 O 1.21280 * 119.99764 * 359.97438 * 8 7 6
10 10 N 1.34771 * 120.00361 * 180.02562 * 8 7 6
11 11 C 1.45947 * 118.25869 * 0.02562 * 10 8 7
12 12 C 1.53143 * 108.20242 * 148.95978 * 11 10 8
13 13 C 1.52826 * 108.60397 * 61.92886 * 12 11 10
14 14 H 1.08998 * 109.63051 * 62.92682 * 13 12 11
15 15 C 1.51789 * 111.59689 * 301.25819 * 13 12 11
16 16 H 1.09004 * 107.16099 * 143.18811 * 15 13 12
17 17 C 1.54126 * 105.57000 * 256.31484 * 15 13 12
18 18 C 1.54221 * 103.28792 * 334.26485 * 17 15 13
19 19 N 1.46882 * 106.56170 * 27.30293 * 18 17 15
20 20 C 1.36942 * 125.45764 * 161.34927 * 19 18 17
21 21 H 1.07989 * 120.00268 * 180.02562 * 20 19 18
22 22 C 1.38813 * 119.99296 * 0.02562 * 20 19 18
23 23 N 1.31618 * 120.00921 * 359.97438 * 22 20 19
24 24 Si 1.86808 * 119.99671 * 180.02562 * 22 20 19
25 25 H 1.48501 * 109.46684 * 359.97438 * 24 22 20
26 26 H 1.48504 * 109.47312 * 119.99614 * 24 22 20
27 27 H 1.48494 * 109.47136 * 240.00174 * 24 22 20
28 28 C 1.44369 * 118.26104 * 179.97438 * 10 8 7
29 29 C 1.38237 * 120.00651 * 0.27486 * 6 5 4
30 30 C 1.38232 * 119.99913 * 269.97341 * 3 2 1
31 31 H 1.08998 * 109.47278 * 59.99713 * 1 2 3
32 32 H 1.09004 * 109.47216 * 180.02562 * 1 2 3
33 33 H 1.09005 * 109.47277 * 300.00182 * 1 2 3
34 34 H 1.08993 * 109.47417 * 239.99442 * 2 1 3
35 35 H 1.09002 * 109.46843 * 119.99477 * 2 1 3
36 36 H 1.07998 * 119.99590 * 359.97438 * 4 3 2
37 37 H 1.08004 * 119.99598 * 179.97438 * 5 4 3
38 38 H 1.09005 * 109.46807 * 329.99526 * 7 6 5
39 39 H 1.09005 * 109.47454 * 210.00139 * 7 6 5
40 40 H 1.08997 * 109.71703 * 29.27930 * 11 10 8
41 41 H 1.09003 * 109.74822 * 268.65479 * 11 10 8
42 42 H 1.09000 * 109.61524 * 302.19777 * 12 11 10
43 43 H 1.09000 * 109.76518 * 181.75627 * 12 11 10
44 44 H 1.09002 * 110.68575 * 215.81079 * 17 15 13
45 45 H 1.09001 * 110.65480 * 92.70412 * 17 15 13
46 46 H 1.09002 * 110.04871 * 268.01168 * 18 17 15
47 47 H 1.09005 * 110.04397 * 146.59328 * 18 17 15
48 48 H 0.96995 * 120.00569 * 180.02562 * 23 22 20
49 49 H 1.09002 * 107.88919 * 296.78946 * 28 10 8
50 50 H 1.08995 * 107.88887 * 52.89791 * 28 10 8
51 51 H 1.07993 * 120.00583 * 179.72794 * 29 6 5
52 52 H 1.08004 * 119.99755 * 0.02562 * 30 3 2
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 2.0323 1.4208 0.0000
4 6 2.2627 2.0725 1.1972
5 6 2.7240 3.3757 1.1971
6 6 2.9553 4.0269 -0.0001
7 6 3.4587 5.4473 -0.0001
8 6 4.9656 5.4463 0.0005
9 8 5.5713 4.3956 0.0014
10 7 5.6404 6.6130 0.0010
11 6 4.8735 7.8547 0.0016
12 6 5.6826 8.9163 0.7522
13 6 6.9964 9.1460 0.0060
14 1 6.7883 9.5382 -0.9895
15 6 7.8050 7.8666 -0.1085
16 1 8.2875 7.8774 -1.0859
17 6 8.9322 7.9949 0.9347
18 6 9.1011 9.5201 1.0884
19 7 7.8004 10.1202 0.7634
20 6 7.3994 11.3829 1.1096
21 1 6.4195 11.7356 0.8241
22 6 8.2527 12.2096 1.8276
23 7 9.4469 11.7796 2.1761
24 14 7.7055 13.9320 2.3006
25 1 6.3303 14.1710 1.7937
26 1 7.7190 14.0671 3.7794
27 1 8.6323 14.9271 1.7040
28 6 7.0834 6.5681 0.0021
29 6 2.7200 3.3770 -1.1973
30 6 2.2632 2.0723 -1.1971
31 1 -0.3634 0.5139 -0.8899
32 1 -0.3634 -1.0277 0.0005
33 1 -0.3634 0.5139 0.8900
34 1 1.8934 -0.5139 -0.8899
35 1 1.8933 -0.5138 0.8901
36 1 2.0823 1.5635 2.1325
37 1 2.9036 3.8850 2.1324
38 1 3.0953 5.9616 0.8896
39 1 3.0961 5.9614 -0.8904
40 1 3.9188 7.6971 0.5033
41 1 4.7005 8.1812 -1.0239
42 1 5.8925 8.5690 1.7639
43 1 5.1183 9.8479 0.7950
44 1 9.8521 7.5416 0.5653
45 1 8.6335 7.5439 1.8810
46 1 9.8629 9.8831 0.3985
47 1 9.3793 9.7637 2.1138
48 1 10.0429 12.3571 2.6781
49 1 7.4028 6.0903 0.9284
50 1 7.3992 5.9323 -0.8249
51 1 2.8965 3.8873 -2.1325
52 1 2.0832 1.5631 -2.1324
RHF calculation, no. of doubly occupied orbitals= 65
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
ZINC001036830074.mol2 52
1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED
SCF FIELD WAS ACHIEVED
Wall clock time and date at job start Sat Apr 11 2020 06:46:29
Heat of formation + Delta-G solvation = 6.756873 kcal
Electronic energy + Delta-G solvation = -29726.156313 eV
Core-core repulsion = 25883.484496 eV
Total energy + Delta-G solvation = -3842.671817 eV
No. of doubly occupied orbitals = 65
Molecular weight
(most abundant/longest-lived isotopes) = 342.205 amu
Computer time = 0.85 seconds
Orbital eigenvalues (eV)
-40.55525 -39.50143 -38.20532 -35.46249 -34.82467 -33.01374 -31.75596 -31.48544
-31.03273 -29.72305 -28.41381 -27.19994 -25.09328 -23.91908 -22.94072 -22.86345
-22.73856 -20.89795 -20.32144 -19.54733 -17.86229 -17.14821 -17.04903 -16.44739
-16.12622 -15.62813 -15.39994 -15.05716 -14.96344 -14.72322 -14.00822 -13.97130
-13.83151 -13.56682 -13.52077 -13.19724 -13.14557 -12.91829 -12.54622 -12.32152
-12.26002 -12.09980 -11.88087 -11.71954 -11.45645 -11.42334 -11.32884 -11.05647
-11.00304 -10.96432 -10.83169 -10.79402 -10.24093 -10.10438 -9.87274 -9.71746
-9.60769 -9.54006 -8.99696 -8.65627 -8.61808 -8.39140 -6.88749 -5.70906
-3.10368 1.19499 1.32930 2.71088 3.12058 3.36399 3.41562 3.44389
3.67695 4.43182 4.46599 4.58728 4.62871 4.70254 4.82105 4.88581
5.04242 5.06815 5.09362 5.15779 5.19679 5.25204 5.28819 5.30785
5.37959 5.41092 5.47228 5.50605 5.58748 5.61161 5.67931 5.82387
5.83837 5.91736 5.95716 5.96966 6.07783 6.09537 6.19874 6.27662
6.29879 6.39498 6.48343 6.49780 6.56193 6.62306 6.78068 6.87289
6.90151 7.00721 7.49615 7.52104 7.61386 7.82760 8.28707 8.29936
9.18601 9.79295 10.43611 11.35173
Molecular weight = 342.20amu
Principal moments of inertia in cm(-1)
A = 0.026864 B = 0.002027 C = 0.001960
Principal moments of inertia in units of 10**(-40)*gram-cm**2
A = 1042.025028 B =13807.128470 C =14285.045344
Net atomic charges, atomic populations, and dipole contributions
calculated with CM2
Atom NO. Type Charge No. of electrons
1 C -0.146 4.146
2 C -0.085 4.085
3 C -0.086 4.086
4 C -0.117 4.117
5 C -0.102 4.102
6 C -0.066 4.066
7 C -0.102 4.102
8 C 0.507 3.493
9 O -0.538 6.538
10 N -0.597 5.597
11 C 0.105 3.895
12 C -0.137 4.137
13 C 0.175 3.825
14 H 0.033 0.967
15 C -0.102 4.102
16 H 0.063 0.937
17 C -0.135 4.135
18 C 0.160 3.840
19 N -0.596 5.596
20 C -0.222 4.222
21 H 0.079 0.921
22 C -0.010 4.010
23 N -0.920 5.920
24 Si 0.912 3.088
25 H -0.280 1.280
26 H -0.291 1.291
27 H -0.291 1.291
28 C 0.142 3.858
29 C -0.102 4.102
30 C -0.117 4.117
31 H 0.055 0.945
32 H 0.056 0.944
33 H 0.055 0.945
34 H 0.070 0.930
35 H 0.070 0.930
36 H 0.119 0.881
37 H 0.120 0.880
38 H 0.103 0.897
39 H 0.102 0.898
40 H 0.076 0.924
41 H 0.064 0.936
42 H 0.068 0.932
43 H 0.077 0.923
44 H 0.061 0.939
45 H 0.058 0.942
46 H 0.016 0.984
47 H 0.093 0.907
48 H 0.251 0.749
49 H 0.058 0.942
50 H 0.059 0.941
51 H 0.119 0.881
52 H 0.119 0.881
For the charges calculated by CM2:
Dipole moment (debyes) X Y Z Total
from point charges -15.914 -18.487 -5.124 24.925
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 -0.122 4.122
3 C -0.086 4.086
4 C -0.135 4.135
5 C -0.120 4.120
6 C -0.066 4.066
7 C -0.142 4.142
8 C 0.294 3.706
9 O -0.415 6.415
10 N -0.330 5.330
11 C -0.018 4.018
12 C -0.177 4.177
13 C 0.067 3.933
14 H 0.051 0.949
15 C -0.122 4.122
16 H 0.081 0.919
17 C -0.174 4.174
18 C 0.035 3.965
19 N -0.321 5.321
20 C -0.351 4.351
21 H 0.096 0.904
22 C -0.206 4.206
23 N -0.568 5.568
24 Si 0.743 3.257
25 H -0.205 1.205
26 H -0.218 1.218
27 H -0.218 1.218
28 C 0.020 3.980
29 C -0.120 4.120
30 C -0.135 4.135
31 H 0.074 0.926
32 H 0.075 0.925
33 H 0.074 0.926
34 H 0.089 0.911
35 H 0.089 0.911
36 H 0.137 0.863
37 H 0.138 0.862
38 H 0.121 0.879
39 H 0.120 0.880
40 H 0.094 0.906
41 H 0.082 0.918
42 H 0.087 0.913
43 H 0.096 0.904
44 H 0.079 0.921
45 H 0.077 0.923
46 H 0.034 0.966
47 H 0.111 0.889
48 H 0.062 0.938
49 H 0.076 0.924
50 H 0.078 0.922
51 H 0.137 0.863
52 H 0.137 0.863
Dipole moment (debyes) X Y Z Total
from point charges -15.438 -18.804 -5.022 24.843
hybrid contribution -0.072 1.124 0.194 1.143
sum -15.510 -17.680 -4.828 24.010
Atomic orbital electron populations
1.21747 0.94807 1.01563 1.02211 1.20533 0.96073 0.92836 1.02778
1.19857 0.99421 0.96089 0.93272 1.20944 1.00349 0.94762 0.97442
1.20966 0.98697 0.94890 0.97427 1.19300 0.98926 0.94803 0.93578
1.20736 0.92867 0.95385 1.05173 1.20517 0.89666 0.83465 0.76917
1.90701 1.70297 1.31067 1.49435 1.47313 1.06632 1.06310 1.72726
1.21721 0.94733 0.84440 1.00899 1.22289 0.97983 0.97468 1.00007
1.20228 0.90354 0.88388 0.94322 0.94931 1.20753 0.97156 0.93415
1.00851 0.91880 1.22861 0.96290 1.01006 0.97199 1.21483 0.87120
0.85409 1.02500 1.44516 1.13006 1.11627 1.62912 1.19046 0.99442
0.87903 1.28669 0.90362 1.24802 0.96275 0.98649 1.00860 1.69895
1.07851 1.35464 1.43639 0.86038 0.77628 0.84110 0.77931 1.20517
1.21785 1.21796 1.19917 0.78885 0.97229 1.02011 1.20948 0.98872
0.94871 0.97350 1.20933 1.00455 0.94744 0.97415 0.92579 0.92521
0.92566 0.91141 0.91127 0.86280 0.86237 0.87892 0.88012 0.90601
0.91794 0.91325 0.90438 0.92072 0.92316 0.96642 0.88913 0.93784
0.92402 0.92225 0.86299 0.86314
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 -0.92 9.89 37.16 0.37 -0.55 16
2 C -0.08 -0.62 6.06 -27.88 -0.17 -0.79 16
3 C -0.09 -0.84 5.13 -104.62 -0.54 -1.38 16
4 C -0.12 -1.20 9.70 -39.58 -0.38 -1.58 16
5 C -0.10 -1.14 9.70 -39.59 -0.38 -1.52 16
6 C -0.07 -0.75 4.37 -104.62 -0.46 -1.21 16
7 C -0.10 -1.07 4.30 -29.03 -0.12 -1.19 16
8 C 0.51 7.27 7.60 -10.99 -0.08 7.19 16
9 O -0.54 -9.67 15.81 5.56 0.09 -9.58 16
10 N -0.60 -8.60 3.14 -178.11 -0.56 -9.16 16
11 C 0.11 1.33 5.92 -4.27 -0.03 1.31 16
12 C -0.14 -2.29 5.21 -26.75 -0.14 -2.43 16
13 C 0.17 3.39 3.22 -68.21 -0.22 3.17 16
14 H 0.03 0.65 8.14 -51.93 -0.42 0.23 16
15 C -0.10 -1.77 2.70 -92.63 -0.25 -2.02 16
16 H 0.06 1.06 8.10 -51.93 -0.42 0.64 16
17 C -0.13 -2.53 6.38 -25.50 -0.16 -2.69 16
18 C 0.16 3.80 5.67 -3.20 -0.02 3.78 16
19 N -0.60 -14.48 3.14 -164.82 -0.52 -14.99 16
20 C -0.22 -5.88 9.68 -15.06 -0.15 -6.03 16
21 H 0.08 1.98 7.51 -52.49 -0.39 1.59 16
22 C -0.01 -0.27 5.49 -17.43 -0.10 -0.37 16
23 N -0.92 -26.37 10.17 55.49 0.56 -25.80 16
24 Si 0.91 21.53 29.55 -169.99 -5.02 16.51 16
25 H -0.28 -6.36 7.11 56.52 0.40 -5.96 16
26 H -0.29 -6.94 7.11 56.52 0.40 -6.54 16
27 H -0.29 -6.97 7.11 56.52 0.40 -6.57 16
28 C 0.14 2.26 5.19 -7.16 -0.04 2.22 16
29 C -0.10 -1.12 9.70 -39.58 -0.38 -1.50 16
30 C -0.12 -1.18 9.70 -39.58 -0.38 -1.57 16
31 H 0.06 0.36 8.14 -51.93 -0.42 -0.07 16
32 H 0.06 0.29 8.14 -51.93 -0.42 -0.13 16
33 H 0.06 0.36 8.14 -51.93 -0.42 -0.06 16
34 H 0.07 0.47 8.08 -51.93 -0.42 0.05 16
35 H 0.07 0.48 8.09 -51.93 -0.42 0.06 16
36 H 0.12 0.99 8.06 -52.49 -0.42 0.57 16
37 H 0.12 1.20 8.06 -52.48 -0.42 0.78 16
38 H 0.10 0.90 7.24 -51.93 -0.38 0.53 16
39 H 0.10 0.85 8.00 -51.93 -0.42 0.44 16
40 H 0.08 0.76 6.20 -51.93 -0.32 0.44 16
41 H 0.06 0.74 8.14 -51.93 -0.42 0.32 16
42 H 0.07 1.26 8.14 -51.93 -0.42 0.84 16
43 H 0.08 1.31 7.64 -51.93 -0.40 0.92 16
44 H 0.06 1.03 8.14 -51.93 -0.42 0.61 16
45 H 0.06 1.09 7.70 -51.93 -0.40 0.69 16
46 H 0.02 0.40 8.14 -51.93 -0.42 -0.02 16
47 H 0.09 2.49 6.19 -51.93 -0.32 2.17 16
48 H 0.25 7.01 8.31 -40.82 -0.34 6.67 16
49 H 0.06 0.97 7.31 -51.93 -0.38 0.59 16
50 H 0.06 0.94 7.95 -51.93 -0.41 0.53 16
51 H 0.12 1.13 8.06 -52.49 -0.42 0.71 16
52 H 0.12 0.96 8.06 -52.48 -0.42 0.54 16
LS Contribution 404.45 15.07 6.09 6.09
Total: -1.00 -31.67 404.45 -11.87 -43.54
By element:
Atomic # 1 Polarization: 9.43 SS G_CDS: -8.89 Total: 0.54 kcal
Atomic # 6 Polarization: -3.52 SS G_CDS: -3.63 Total: -7.16 kcal
Atomic # 7 Polarization: -49.44 SS G_CDS: -0.51 Total: -49.95 kcal
Atomic # 8 Polarization: -9.67 SS G_CDS: 0.09 Total: -9.58 kcal
Atomic # 14 Polarization: 21.53 SS G_CDS: -5.02 Total: 16.51 kcal
Total LS contribution 6.09 Total: 6.09 kcal
Total: -31.67 -11.87 -43.54 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.
ZINC001036830074.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 50.301 kcal
(2) G-P(sol) polarization free energy of solvation -31.670 kcal
(3) G-ENP(sol) elect.-nuc.-pol. free energy of system 18.631 kcal
(4) G-CDS(sol) cavity-dispersion-solvent structure free energy -11.874 kcal
(5) G-P-CDS(sol) = G-P(sol) + G-CDS(sol) = (2) + (4) -43.544 kcal
(6) G-S(sol) free energy of system = (1) + (5) 6.757 kcal
1SCF WAS SPECIFIED, SO GEOMETRY OPTIMIZATION WAS NOT USED
Total computer time = 0.85 seconds