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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP4=FULL/STO-3G

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/STO-3G
 hartrees
Energy at 0K-78.450206
Energy at 298.15K-78.456050
HF Energy-78.302982
Nuclear repulsion energy41.485654
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/STO-3G
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 3298 3298        
2 A1g 1614 1614        
3 A1g 1104 1104        
4 A1u 294 294        
5 A2u 3300 3300        
6 A2u 1579 1579        
7 Eg 3456 3456        
7 Eg 3456 3456        
8 Eg 1694 1694        
8 Eg 1693 1693        
9 Eg 1346 1346        
9 Eg 1346 1346        
10 Eu 3468 3468        
10 Eu 3468 3468        
11 Eu 1710 1710        
11 Eu 1709 1709        
12 Eu 903 903        
12 Eu 903 903        

Unscaled Zero Point Vibrational Energy (zpe) 18168.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18168.9 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=FULL/STO-3G
ABC
2.58615 0.64326 0.64326

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/STO-3G

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.781
C2 0.000 0.000 -0.781
H3 0.000 1.038 1.173
H4 -0.899 -0.519 1.173
H5 0.899 -0.519 1.173
H6 0.000 -1.038 -1.173
H7 -0.899 0.519 -1.173
H8 0.899 0.519 -1.173

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.56101.11011.11011.11012.21272.21272.2127
C21.56102.21272.21272.21271.11011.11011.1101
H31.11012.21271.79831.79833.13372.56632.5663
H41.11012.21271.79831.79832.56632.56633.1337
H51.11012.21271.79831.79832.56633.13372.5663
H62.21271.11013.13372.56632.56631.79831.7983
H72.21271.11012.56632.56633.13371.79831.7983
H82.21271.11012.56633.13372.56631.79831.7983

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.729 C1 C2 H7 110.729
C1 C2 H8 110.729 C2 C1 H3 110.729
C2 C1 H4 110.729 C2 C1 H5 110.729
H3 C1 H4 108.184 H3 C1 H5 108.184
H4 C1 H5 108.184 H6 C2 H7 108.184
H6 C2 H8 108.184 H7 C2 H8 108.184
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability