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All results from a given calculation for C2H6 (Ethane)

using model chemistry: MP3=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at MP3=FULL/3-21G
 hartrees
Energy at 0K-79.007075
Energy at 298.15K-79.013036
HF Energy-78.793315
Nuclear repulsion energy41.877384
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 MP3=FULL/3-21G
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 3075 3075 0.00      
2 A1g 1495 1495 0.00      
3 A1g 972 972 0.00      
4 A1u 318 318 0.00      
5 A2u 3075 3075 39.88      
6 A2u 1498 1498 4.42      
7 Eg 3125 3125 0.00      
7 Eg 3125 3125 0.00      
8 Eg 1598 1598 0.00      
8 Eg 1598 1598 0.00      
9 Eg 1289 1289 0.00      
9 Eg 1289 1289 0.00      
10 Eu 3148 3148 57.43      
10 Eu 3148 3148 57.43      
11 Eu 1601 1601 8.60      
11 Eu 1601 1601 8.60      
12 Eu 870 870 5.80      
12 Eu 870 870 5.80      

Unscaled Zero Point Vibrational Energy (zpe) 16847.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16847.7 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 MP3=FULL/3-21G
ABC
2.65179 0.65240 0.65240

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G

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 1.025 1.164
H4 -0.888 -0.513 1.164
H5 0.888 -0.513 1.164
H6 0.000 -1.025 -1.164
H7 -0.888 0.513 -1.164
H8 0.888 0.513 -1.164

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.55311.09601.09601.09602.19452.19452.1945
C21.55312.19452.19452.19451.09601.09601.0960
H31.09602.19451.77591.77593.10192.54322.5432
H41.09602.19451.77591.77592.54322.54323.1019
H51.09602.19451.77591.77592.54323.10192.5432
H62.19451.09603.10192.54322.54321.77591.7759
H72.19451.09602.54322.54323.10191.77591.7759
H82.19451.09602.54323.10192.54321.77591.7759

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.685 C1 C2 H7 110.685
C1 C2 H8 110.685 C2 C1 H3 110.685
C2 C1 H4 110.685 C2 C1 H5 110.685
H3 C1 H4 108.231 H3 C1 H5 108.231
H4 C1 H5 108.231 H6 C2 H7 108.231
H6 C2 H8 108.231 H7 C2 H8 108.231
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability