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

using model chemistry: MP4/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/TZVP
 hartrees
Energy at 0K-193.903218
Energy at 298.15K-193.912152
HF Energy-193.173423
Nuclear repulsion energy133.439875
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 MP4/TZVP
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' 3153 3036        
2 A' 3140 3024        
3 A' 3059 2946        
4 A' 3001 2890        
5 A' 2985 2874        
6 A' 1551 1494        
7 A' 1524 1467        
8 A' 1517 1461        
9 A' 1500 1445        
10 A' 1453 1399        
11 A' 1416 1363        
12 A' 1253 1207        
13 A' 1160 1117        
14 A' 1128 1086        
15 A' 1041 1002        
16 A' 874 842        
17 A' 471 453        
18 A' 293 282        
19 A" 3150 3033        
20 A" 3057 2944        
21 A" 3021 2909        
22 A" 1493 1437        
23 A" 1492 1436        
24 A" 1300 1252        
25 A" 1215 1170        
26 A" 1174 1131        
27 A" 832 802        
28 A" 260 250        
29 A" 210 202        
30 A" 91 88        

Unscaled Zero Point Vibrational Energy (zpe) 23906.5 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 23019.6 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 MP4/TZVP
ABC
0.93406 0.13878 0.12974

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.324 1.231 0.000
O2 0.001 0.724 0.000
C3 0.000 -0.698 0.000
C4 -1.438 -1.179 0.000
H5 1.253 2.319 0.000
H6 1.876 0.905 0.893
H7 1.876 0.905 -0.893
H8 0.532 -1.071 -0.889
H9 0.532 -1.071 0.889
H10 -1.470 -2.272 0.000
H11 -1.959 -0.814 0.888
H12 -1.959 -0.814 -0.888

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.41712.33943.66541.09031.09901.09902.59152.59154.48043.96863.9686
O21.41711.42142.38522.02812.08452.08452.07202.07203.33692.64472.6447
C32.33941.42141.51643.26662.62392.62391.10131.10132.15362.15422.1542
C43.66542.38521.51644.41314.01504.01502.16422.16421.09361.09211.0921
H51.09032.02813.26664.41311.78411.78413.57783.57785.33754.57434.5743
H61.09902.08452.62394.01501.78411.78592.98092.38964.69924.20264.5643
H71.09902.08452.62394.01501.78411.78592.38962.98094.69924.56434.2026
H82.59152.07201.10132.16423.57782.98092.38961.77822.49803.07082.5045
H92.59152.07201.10132.16423.57782.38962.98091.77822.49802.50453.0708
H104.48043.33692.15361.09365.33754.69924.69922.49802.49801.77551.7755
H113.96862.64472.15421.09214.57434.20264.56433.07082.50451.77551.7758
H123.96862.64472.15421.09214.57434.56434.20262.50453.07081.77551.7758

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 111.004 O2 C1 H5 107.251
O2 C1 H6 111.258 O2 C1 H7 111.258
O2 C3 C4 108.516 O2 C3 H8 109.789
O2 C3 H9 109.789 C3 C4 H10 110.146
C3 C4 H11 110.284 C3 C4 H12 110.284
C4 C3 H8 110.534 C4 C3 H9 110.534
H5 C1 H6 109.168 H5 C1 H7 109.168
H6 C1 H7 108.693 H8 C3 H9 107.673
H10 C4 H11 108.649 H10 C4 H12 108.649
H11 C4 H12 108.784
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability