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All results from a given calculation for CH3OC2H5 (Ethane, methoxy-)

using model chemistry: MP2/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-193.416724
Energy at 298.15K-193.425622
HF Energy-193.015574
Nuclear repulsion energy130.818295
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 MP2/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3191 3053 26.16      
2 A' 3158 3021 27.32      
3 A' 3073 2940 17.07      
4 A' 3027 2897 54.37      
5 A' 3011 2881 39.33      
6 A' 1599 1530 0.35      
7 A' 1577 1508 2.42      
8 A' 1573 1505 9.55      
9 A' 1518 1452 0.56      
10 A' 1487 1423 12.51      
11 A' 1448 1385 27.04      
12 A' 1230 1177 16.70      
13 A' 1143 1093 7.31      
14 A' 1095 1047 82.57      
15 A' 1018 974 22.00      
16 A' 823 787 13.08      
17 A' 458 438 1.09      
18 A' 279 267 4.37      
19 A" 3175 3038 28.87      
20 A" 3095 2961 63.40      
21 A" 3052 2920 65.93      
22 A" 1559 1492 5.02      
23 A" 1557 1490 5.30      
24 A" 1329 1272 0.00      
25 A" 1216 1164 9.75      
26 A" 1169 1118 0.29      
27 A" 861 824 0.45      
28 A" 261 250 2.56      
29 A" 201 192 2.39      
30 A" 107 103 5.07      

Unscaled Zero Point Vibrational Energy (zpe) 24143.5 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 23100.5 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 MP2/6-31G
ABC
0.90074 0.13275 0.12391

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.353 1.287 0.000
O2 0.000 0.722 0.000
C3 0.000 -0.749 0.000
C4 -1.461 -1.197 0.000
H5 1.221 2.372 0.000
H6 1.913 0.978 0.897
H7 1.913 0.978 -0.897
H8 0.535 -1.119 -0.893
H9 0.535 -1.119 0.893
H10 -1.528 -2.294 0.000
H11 -1.972 -0.810 0.890
H12 -1.972 -0.810 -0.890

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.46662.44523.75341.09291.10171.10172.69422.69424.59614.03074.0307
O21.46661.47132.41132.05272.12812.12812.11492.11493.38062.65092.6509
C32.44521.47131.52793.35172.72902.72901.10431.10432.17262.16442.1644
C43.75342.41131.52794.46394.11274.11272.18742.18741.09911.09671.0967
H51.09292.05273.35174.46391.79631.79633.66843.66845.41534.59474.5947
H61.10172.12812.72904.11271.79631.79483.08272.50964.83204.27624.6348
H71.10172.12812.72904.11271.79631.79482.50963.08274.83204.63484.2762
H82.69422.11491.10432.18743.66843.08272.50961.78562.53593.09132.5253
H92.69422.11491.10432.18743.66842.50963.08271.78562.53592.52533.0913
H104.59613.38062.17261.09915.41534.83204.83202.53592.53591.78601.7860
H114.03072.65092.16441.09674.59474.27624.63483.09132.52531.78601.7803
H124.03072.65092.16441.09674.59474.63484.27622.52533.09131.78601.7803

picture of Ethane, methoxy- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 112.668 O2 C1 H5 105.720
O2 C1 H6 111.121 O2 C1 H7 111.121
O2 C3 C4 107.008 O2 C3 H8 109.569
O2 C3 H9 109.569 C3 C4 H10 110.523
C3 C4 H11 110.021 C3 C4 H12 110.021
C4 C3 H8 111.392 C4 C3 H9 111.392
H5 C1 H6 109.874 H5 C1 H7 109.874
H6 C1 H7 109.087 H8 C3 H9 107.898
H10 C4 H11 108.857 H10 C4 H12 108.857
H11 C4 H12 108.517
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability