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: MP2=FULL/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C2V 1A1
Energy calculated at MP2=FULL/6-31+G**
 hartrees
Energy at 0K-232.963171
Energy at 298.15K-232.974417
HF Energy-232.164067
Nuclear repulsion energy190.061426
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 MP2=FULL/6-31+G**
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 3225 3029 30.97      
2 A1 3129 2939 3.94      
3 A1 3065 2879 111.09      
4 A1 1580 1484 0.29      
5 A1 1549 1455 5.15      
6 A1 1487 1397 4.57      
7 A1 1439 1351 0.57      
8 A1 1204 1131 15.66      
9 A1 1090 1023 15.87      
10 A1 875 822 10.29      
11 A1 445 418 0.06      
12 A1 197 185 0.74      
13 A2 3240 3043 0.00      
14 A2 3112 2923 0.00      
15 A2 1530 1437 0.00      
16 A2 1316 1236 0.00      
17 A2 1195 1122 0.00      
18 A2 836 785 0.00      
19 A2 261 245 0.00      
20 A2 89 84 0.00      
21 B1 3240 3043 44.13      
22 B1 3108 2919 106.79      
23 B1 1531 1438 12.87      
24 B1 1325 1244 3.70      
25 B1 1227 1152 12.42      
26 B1 848 797 0.12      
27 B1 264 248 1.57      
28 B1 109 102 5.88      
29 B2 3225 3029 14.26      
30 B2 3129 2938 33.57      
31 B2 3058 2872 9.20      
32 B2 1565 1470 2.01      
33 B2 1547 1453 2.33      
34 B2 1458 1369 36.76      
35 B2 1412 1326 42.58      
36 B2 1183 1111 179.91      
37 B2 1132 1064 2.50      
38 B2 973 914 7.55      
39 B2 440 413 3.22      

Unscaled Zero Point Vibrational Energy (zpe) 30816.6 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 28942.9 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 MP2=FULL/6-31+G**
ABC
0.60300 0.07503 0.07023

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.273
C2 0.000 1.181 -0.522
C3 0.000 -1.181 -0.522
C4 0.000 2.371 0.408
C5 0.000 -2.371 0.408
H6 0.886 1.190 -1.168
H7 -0.886 1.190 -1.168
H8 0.886 -1.190 -1.168
H9 -0.886 -1.190 -1.168
H10 0.000 3.298 -0.164
H11 0.000 -3.298 -0.164
H12 -0.883 2.353 1.042
H13 0.883 2.353 1.042
H14 0.883 -2.353 1.042
H15 -0.883 -2.353 1.042

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
O11.42341.42342.37522.37522.06782.06782.06782.06783.32683.32682.62852.62852.62852.6285
C21.42342.36181.51063.67191.09631.09632.61182.61182.14694.49302.14482.14483.96433.9643
C31.42342.36183.67191.51062.61182.61181.09631.09634.49302.14693.96433.96432.14482.1448
C42.37521.51063.67194.74262.15982.15983.99363.99361.08945.69811.08751.08754.84794.8479
C52.37523.67191.51064.74263.99363.99362.15982.15985.69811.08944.84794.84791.08751.0875
H62.06781.09632.61182.15983.99361.77132.37932.96622.49724.68293.06072.49774.17564.5349
H72.06781.09632.61182.15983.99361.77132.96622.37932.49724.68292.49773.06074.53494.1756
H82.06782.61181.09633.99362.15982.37932.96621.77134.68292.49724.53494.17562.49773.0607
H92.06782.61181.09633.99362.15982.96622.37931.77134.68292.49724.17564.53493.06072.4977
H103.32682.14694.49301.08945.69812.49722.49724.68294.68296.59581.76901.76905.84565.8456
H113.32684.49302.14695.69811.08944.68294.68292.49722.49726.59585.84565.84561.76901.7690
H122.62852.14483.96431.08754.84793.06072.49774.53494.17561.76905.84561.76675.02694.7062
H132.62852.14483.96431.08754.84792.49773.06074.17564.53491.76905.84561.76674.70625.0269
H142.62853.96432.14484.84791.08754.17564.53492.49773.06075.84561.76905.02694.70621.7667
H152.62853.96432.14484.84791.08754.53494.17563.06072.49775.84561.76904.70625.02691.7667

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 108.062 O1 C2 H6 109.613
O1 C2 H7 109.613 O1 C3 C5 108.062
O1 C3 H8 109.613 O1 C3 H9 109.613
C2 O1 C3 112.120 C2 C4 H10 110.279
C2 C4 H12 110.226 C2 C4 H13 110.226
C3 C5 H11 110.279 C3 C5 H14 110.226
C3 C5 H15 110.226 C4 C2 H6 110.890
C4 C2 H7 110.890 C5 C3 H8 110.890
C5 C3 H9 110.890 H6 C2 H7 107.766
H8 C3 H9 107.766 H10 C4 H12 108.710
H10 C4 H13 108.710 H11 C5 H14 108.710
H11 C5 H15 108.710 H12 C4 H13 108.644
H14 C5 H15 108.644
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability