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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP4=FULL/CEP-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=FULL/CEP-31G*
 hartrees
Energy at 0K-14.754338
Energy at 298.15K-14.760233
HF Energy-14.464369
Nuclear repulsion energy26.158275
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=FULL/CEP-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 3047 3047        
2 A1g 1450 1450        
3 A1g 1023 1023        
4 A1u 312 312        
5 A2u 3042 3042        
6 A2u 1412 1412        
7 Eg 3111 3111        
7 Eg 3110 3110        
8 Eg 1507 1507        
8 Eg 1506 1506        
9 Eg 1225 1225        
9 Eg 1225 1225        
10 Eu 3132 3132        
10 Eu 3132 3132        
11 Eu 1508 1508        
11 Eu 1507 1507        
12 Eu 819 819        
12 Eu 819 819        

Unscaled Zero Point Vibrational Energy (zpe) 16443.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16443.2 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=FULL/CEP-31G*
ABC
2.59670 0.64658 0.64658

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

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.777
C2 0.000 0.000 -0.777
H3 0.000 1.036 1.174
H4 -0.897 -0.518 1.174
H5 0.897 -0.518 1.174
H6 0.000 -1.036 -1.174
H7 -0.897 0.518 -1.174
H8 0.897 0.518 -1.174

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.55391.10971.10971.10972.20932.20932.2093
C21.55392.20932.20932.20931.10971.10971.1097
H31.10972.20931.79471.79473.13222.56702.5670
H41.10972.20931.79471.79472.56702.56703.1322
H51.10972.20931.79471.79472.56703.13222.5670
H62.20931.10973.13222.56702.56701.79471.7947
H72.20931.10972.56702.56703.13221.79471.7947
H82.20931.10972.56703.13222.56701.79471.7947

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.983 C1 C2 H7 110.983
C1 C2 H8 110.983 C2 C1 H3 110.983
C2 C1 H4 110.983 C2 C1 H5 110.983
H3 C1 H4 107.918 H3 C1 H5 107.918
H4 C1 H5 107.918 H6 C2 H7 107.918
H6 C2 H8 107.918 H7 C2 H8 107.918
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability