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All results from a given calculation for C2H6 (Ethane)

using model chemistry: B2PLYP=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 B2PLYP=FULL/3-21G
 hartrees
Energy at 0K-79.251921
Energy at 298.15K-79.257875
HF Energy-79.188538
Nuclear repulsion energy42.016605
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 B2PLYP=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 3079 2931 0.00 177.05 0.02 0.03
2 A1g 1482 1411 0.00 8.84 0.72 0.84
3 A1g 978 931 0.00 8.79 0.29 0.44
4 A1u 313 298 0.00 0.00 0.00 0.00
5 A2u 3079 2932 43.46 0.00 0.02 0.03
6 A2u 1491 1419 5.18 0.00 0.00 0.00
7 Eg 3129 2979 0.00 115.56 0.75 0.86
7 Eg 3129 2979 0.00 115.57 0.75 0.86
8 Eg 1594 1517 0.00 45.95 0.75 0.86
8 Eg 1594 1517 0.00 45.95 0.75 0.86
9 Eg 1278 1217 0.00 4.22 0.75 0.86
9 Eg 1278 1217 0.00 4.22 0.75 0.86
10 Eu 3155 3003 57.31 0.00 0.00 0.00
10 Eu 3155 3003 57.31 0.00 0.00 0.00
11 Eu 1595 1519 10.16 0.00 0.00 0.00
11 Eu 1595 1519 10.16 0.00 0.00 0.00
12 Eu 872 830 7.25 0.00 0.00 0.00
12 Eu 872 830 7.25 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 16832.7 cm-1
Scaled (by 0.952) Zero Point Vibrational Energy (zpe) 16024.7 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 B2PLYP=FULL/3-21G
ABC
2.66797 0.65746 0.65746

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.773
C2 0.000 0.000 -0.773
H3 0.000 1.022 1.161
H4 -0.885 -0.511 1.161
H5 0.885 -0.511 1.161
H6 0.000 -1.022 -1.161
H7 -0.885 0.511 -1.161
H8 0.885 0.511 -1.161

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.54551.09341.09341.09342.18722.18722.1872
C21.54552.18722.18722.18721.09341.09341.0934
H31.09342.18721.77051.77053.09372.53692.5369
H41.09342.18721.77051.77052.53692.53693.0937
H51.09342.18721.77051.77052.53693.09372.5369
H62.18721.09343.09372.53692.53691.77051.7705
H72.18721.09342.53692.53693.09371.77051.7705
H82.18721.09342.53693.09372.53691.77051.7705

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.794 C1 C2 H7 110.794
C1 C2 H8 110.794 C2 C1 H3 110.794
C2 C1 H4 110.794 C2 C1 H5 110.794
H3 C1 H4 108.117 H3 C1 H5 108.117
H4 C1 H5 108.116 H6 C2 H7 108.117
H6 C2 H8 108.117 H7 C2 H8 108.116
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability