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

using model chemistry: QCISD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-231.402073
Energy at 298.15K-231.413200
HF Energy-230.858032
Nuclear repulsion energy186.518915
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 QCISD/3-21G
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 3108 3012 29.63      
2 A1 3041 2947 3.20      
3 A1 2981 2889 70.64      
4 A1 1616 1566 0.00      
5 A1 1581 1533 5.39      
6 A1 1473 1427 6.19      
7 A1 1471 1425 1.12      
8 A1 1183 1147 9.31      
9 A1 1013 982 2.65      
10 A1 834 808 6.67      
11 A1 429 415 0.26      
12 A1 183 177 0.70      
13 A2 3118 3022 0.00      
14 A2 3001 2909 0.00      
15 A2 1564 1516 0.00      
16 A2 1330 1289 0.00      
17 A2 1191 1155 0.00      
18 A2 860 833 0.00      
19 A2 244 237 0.00      
20 A2 105 101 0.00      
21 B1 3118 3022 50.89      
22 B1 3002 2910 105.99      
23 B1 1564 1516 8.41      
24 B1 1329 1288 0.00      
25 B1 1225 1187 11.86      
26 B1 870 843 1.24      
27 B1 250 243 2.35      
28 B1 95 92 5.60      
29 B2 3108 3012 19.21      
30 B2 3040 2947 24.38      
31 B2 2974 2883 4.61      
32 B2 1600 1551 5.74      
33 B2 1580 1531 4.68      
34 B2 1471 1426 8.82      
35 B2 1405 1362 71.68      
36 B2 1145 1109 58.96      
37 B2 1087 1053 66.30      
38 B2 932 903 1.87      
39 B2 407 394 6.15      

Unscaled Zero Point Vibrational Energy (zpe) 30262.1 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 29330.1 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 QCISD/3-21G
ABC
0.56166 0.07293 0.06789

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.266
C2 0.000 1.219 -0.555
C3 0.000 -1.219 -0.555
C4 0.000 2.398 0.437
C5 0.000 -2.398 0.437
H6 0.893 1.251 -1.203
H7 -0.893 1.251 -1.203
H8 0.893 -1.251 -1.203
H9 -0.893 -1.251 -1.203
H10 0.000 3.358 -0.099
H11 0.000 -3.358 -0.099
H12 -0.891 2.337 1.074
H13 0.891 2.337 1.074
H14 0.891 -2.337 1.074
H15 -0.891 -2.337 1.074

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
O11.46921.46922.40432.40432.12642.12642.12642.12643.37763.37762.62842.62842.62842.6284
C21.46922.43721.54093.75021.10431.10432.70502.70502.18734.59912.16742.16744.01114.0111
C31.46922.43723.75021.54092.70502.70501.10431.10434.59912.18734.01114.01112.16742.1674
C42.40431.54093.75024.79642.19182.19184.09934.09931.09905.78091.09731.09734.86024.8602
C52.40433.75021.54094.79644.09934.09932.19182.19185.78091.09904.86024.86021.09731.0973
H62.12641.10432.70502.19184.09931.78622.50193.07412.54114.82283.09032.52314.24964.6090
H72.12641.10432.70502.19184.09931.78623.07412.50192.54114.82282.52313.09034.60904.2496
H82.12642.70501.10434.09932.19182.50193.07411.78624.82282.54114.60904.24962.52313.0903
H92.12642.70501.10434.09932.19183.07412.50191.78624.82282.54114.24964.60903.09032.5231
H103.37762.18734.59911.09905.78092.54112.54114.82284.82286.71581.79221.79225.88225.8822
H113.37764.59912.18735.78091.09904.82284.82282.54112.54116.71585.88225.88221.79221.7922
H122.62842.16744.01111.09734.86023.09032.52314.60904.24961.79225.88221.78255.00214.6738
H132.62842.16744.01111.09734.86022.52313.09034.24964.60901.79225.88221.78254.67385.0021
H142.62844.01112.16744.86021.09734.24964.60902.52313.09035.88221.79225.00214.67381.7825
H152.62844.01112.16744.86021.09734.60904.24963.09032.52315.88221.79224.67385.00211.7825

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 105.993 O1 C2 H6 110.637
O1 C2 H7 110.637 O1 C3 C5 105.993
O1 C3 H8 110.637 O1 C3 H9 110.637
C2 O1 C3 112.082 C2 C4 H10 110.791
C2 C4 H12 109.322 C2 C4 H13 109.322
C3 C5 H11 110.791 C3 C5 H14 109.322
C3 C5 H15 109.322 C4 C2 H6 110.828
C4 C2 H7 110.828 C5 C3 H8 110.828
C5 C3 H9 110.828 H6 C2 H7 107.943
H8 C3 H9 107.943 H10 C4 H12 109.376
H10 C4 H13 109.376 H11 C5 H14 109.376
H11 C5 H15 109.376 H12 C4 H13 108.618
H14 C5 H15 108.618
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability