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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP4/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at MP4/6-31G**
 hartrees
Energy at 0K-79.584148
Energy at 298.15K-79.590101
HF Energy-79.238109
Nuclear repulsion energy42.257367
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 MP4/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1g 3104 2930        
2 A1g 1481 1398        
3 A1g 1035 977        
4 A1u 330 311        
5 A2u 3103 2929        
6 A2u 1453 1371        
7 Eg 3176 2997        
7 Eg 3176 2997        
8 Eg 1555 1468        
8 Eg 1555 1467        
9 Eg 1263 1192        
9 Eg 1263 1192        
10 Eu 3197 3017        
10 Eu 3197 3017        
11 Eu 1561 1473        
11 Eu 1560 1473        
12 Eu 838 791        
12 Eu 838 791        

Unscaled Zero Point Vibrational Energy (zpe) 16842.5 cm-1
Scaled (by 0.9438) Zero Point Vibrational Energy (zpe) 15895.9 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 MP4/6-31G**
ABC
2.69168 0.66764 0.66764

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G**

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.764
C2 0.000 0.000 -0.764
H3 0.000 1.018 1.158
H4 -0.881 -0.509 1.158
H5 0.881 -0.509 1.158
H6 0.000 -1.018 -1.158
H7 -0.881 0.509 -1.158
H8 0.881 0.509 -1.158

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52811.09121.09121.09122.17482.17482.1748
C21.52812.17482.17482.17481.09121.09121.0912
H31.09122.17481.76271.76273.08312.52952.5295
H41.09122.17481.76271.76272.52952.52953.0831
H51.09122.17481.76271.76272.52953.08312.5295
H62.17481.09123.08312.52952.52951.76271.7627
H72.17481.09122.52952.52953.08311.76271.7627
H82.17481.09122.52953.08312.52951.76271.7627

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.156 C1 C2 H7 111.156
C1 C2 H8 111.156 C2 C1 H3 111.156
C2 C1 H4 111.156 C2 C1 H5 111.156
H3 C1 H4 107.735 H3 C1 H5 107.735
H4 C1 H5 107.735 H6 C2 H7 107.735
H6 C2 H8 107.735 H7 C2 H8 107.735
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability