return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C4H10O (Ethoxy ethane)

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C2V 1A1
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-232.207730
Energy at 298.15K-232.219222
HF Energy-232.207730
Nuclear repulsion energy191.094175
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3233 2937 70.44      
2 A1 3170 2880 2.39      
3 A1 3129 2843 125.44      
4 A1 1664 1512 0.89      
5 A1 1621 1472 6.29      
6 A1 1592 1446 2.93      
7 A1 1523 1383 0.35      
8 A1 1291 1173 31.00      
9 A1 1134 1030 10.92      
10 A1 937 852 10.20      
11 A1 467 425 0.18      
12 A1 204 186 0.55      
13 A2 3243 2946 0.00      
14 A2 3142 2854 0.00      
15 A2 1598 1452 0.00      
16 A2 1409 1280 0.00      
17 A2 1274 1158 0.00      
18 A2 875 795 0.00      
19 A2 271 246 0.00      
20 A2 95 86 0.00      
21 B1 3243 2946 111.55      
22 B1 3148 2860 137.59      
23 B1 1599 1452 9.67      
24 B1 1420 1291 6.94      
25 B1 1305 1185 14.32      
26 B1 891 810 0.00      
27 B1 282 256 2.26      
28 B1 115 104 5.39      
29 B2 3232 2936 34.27      
30 B2 3168 2879 51.37      
31 B2 3114 2829 4.05      
32 B2 1645 1495 4.00      
33 B2 1617 1469 0.01      
34 B2 1547 1405 69.79      
35 B2 1507 1369 33.67      
36 B2 1287 1170 254.92      
37 B2 1185 1077 3.86      
38 B2 1010 917 4.42      
39 B2 463 421 2.78      

Unscaled Zero Point Vibrational Energy (zpe) 31824.1 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 28912.2 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HF/6-311G**
ABC
0.60329 0.07570 0.07078

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.232
C2 0.000 1.175 -0.521
C3 0.000 -1.175 -0.521
C4 0.000 2.359 0.424
C5 0.000 -2.359 0.424
H6 0.879 1.206 -1.166
H7 -0.879 1.206 -1.166
H8 0.879 -1.206 -1.166
H9 -0.879 -1.206 -1.166
H10 0.000 3.291 -0.134
H11 0.000 -3.291 -0.134
H12 -0.879 2.336 1.059
H13 0.879 2.336 1.059
H14 0.879 -2.336 1.059
H15 -0.879 -2.336 1.059

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
O11.39551.39552.36732.36732.04462.04462.04462.04463.31163.31162.62962.62962.62962.6296
C21.39552.35081.51473.65901.09091.09092.61922.61922.15094.48342.14832.14833.94953.9495
C31.39552.35083.65901.51472.61922.61921.09091.09094.48342.15093.94953.94952.14832.1483
C42.36731.51473.65904.71902.15222.15224.00174.00171.08635.67831.08481.08484.81914.8191
C52.36733.65901.51474.71904.00174.00172.15222.15225.67831.08634.81914.81911.08481.0848
H62.04461.09092.61922.15224.00171.75762.41192.98442.48714.69703.05282.49584.18294.5374
H72.04461.09092.61922.15224.00171.75762.98442.41192.48714.69702.49583.05284.53744.1829
H82.04462.61921.09094.00172.15222.41192.98441.75764.69702.48714.53744.18292.49583.0528
H92.04462.61921.09094.00172.15222.98442.41191.75764.69702.48714.18294.53743.05282.4958
H103.31162.15094.48341.08635.67832.48712.48714.69704.69706.58261.76351.76355.81925.8192
H113.31164.48342.15095.67831.08634.69704.69702.48712.48716.58265.81925.81921.76351.7635
H122.62962.14833.94951.08484.81913.05282.49584.53744.18291.76355.81921.75854.99194.6720
H132.62962.14833.94951.08484.81912.49583.05284.18294.53741.76355.81921.75854.67204.9919
H142.62963.94952.14834.81911.08484.18294.53742.49583.05285.81921.76354.99194.67201.7585
H152.62963.94952.14834.81911.08484.53744.18293.05282.49585.81921.76354.67204.99191.7585

picture of Ethoxy ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 108.801 O1 C2 H6 110.033
O1 C2 H7 110.033 O1 C3 C5 108.801
O1 C3 H8 110.033 O1 C3 H9 110.033
C2 O1 C3 114.769 C2 C4 H10 110.483
C2 C4 H12 110.371 C2 C4 H13 110.371
C3 C5 H11 110.483 C3 C5 H14 110.371
C3 C5 H15 110.371 C4 C2 H6 110.317
C4 C2 H7 110.317 C5 C3 H8 110.317
C5 C3 H9 110.317 H6 C2 H7 107.332
H8 C3 H9 107.332 H10 C4 H12 108.631
H10 C4 H13 108.631 H11 C5 H14 108.631
H11 C5 H15 108.631 H12 C4 H13 108.291
H14 C5 H15 108.291
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.478      
2 C 0.092      
3 C 0.092      
4 C -0.250      
5 C -0.250      
6 H 0.062      
7 H 0.062      
8 H 0.062      
9 H 0.062      
10 H 0.082      
11 H 0.082      
12 H 0.096      
13 H 0.096      
14 H 0.096      
15 H 0.096      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.249 1.249
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.997 0.000 0.000
y 0.000 -31.021 0.000
z 0.000 0.000 -33.683
Traceless
 xyz
x -0.645 0.000 0.000
y 0.000 2.319 0.000
z 0.000 0.000 -1.674
Polar
3z2-r2-3.348
x2-y2-1.976
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.519 0.000 0.000
y 0.000 8.389 0.000
z 0.000 0.000 6.784


<r2> (average value of r2) Å2
<r2> 175.019
(<r2>)1/2 13.229