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All results from a given calculation for C2H6 (Ethane)

using model chemistry: B1B95/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 B1B95/CEP-31G*
 hartrees
Energy at 0K-14.871333
Energy at 298.15K-14.877193
Nuclear repulsion energy26.319649
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 B1B95/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 3075 2943 0.00      
2 A1g 1422 1361 0.00      
3 A1g 1027 983 0.00      
4 A1u 300 287 0.00      
5 A2u 3073 2942 64.50      
6 A2u 1381 1322 4.00      
7 Eg 3138 3004 0.00      
7 Eg 3138 3004 0.00      
8 Eg 1494 1430 0.00      
8 Eg 1494 1430 0.00      
9 Eg 1195 1144 0.00      
9 Eg 1195 1144 0.00      
10 Eu 3162 3027 95.98      
10 Eu 3162 3027 96.18      
11 Eu 1499 1434 13.89      
11 Eu 1499 1434 13.89      
12 Eu 803 768 8.72      
12 Eu 803 768 8.71      

Unscaled Zero Point Vibrational Energy (zpe) 16429.3 cm-1
Scaled (by 0.9572) Zero Point Vibrational Energy (zpe) 15726.2 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 B1B95/CEP-31G*
ABC
2.63753 0.65450 0.65450

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G*

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.771
C2 0.000 0.000 -0.771
H3 0.000 1.028 1.170
H4 -0.890 -0.514 1.170
H5 0.890 -0.514 1.170
H6 0.000 -1.028 -1.170
H7 -0.890 0.514 -1.170
H8 0.890 0.514 -1.170

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.54261.10281.10281.10282.19712.19712.1971
C21.54262.19712.19712.19711.10281.10281.1028
H31.10282.19711.78071.78073.11562.55662.5566
H41.10282.19711.78071.78072.55662.55663.1156
H51.10282.19711.78071.78072.55663.11562.5566
H62.19711.10283.11562.55662.55661.78071.7807
H72.19711.10282.55662.55663.11561.78071.7807
H82.19711.10282.55663.11562.55661.78071.7807

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.216 C1 C2 H7 111.216
C1 C2 H8 111.216 C2 C1 H3 111.216
C2 C1 H4 111.216 C2 C1 H5 111.216
H3 C1 H4 107.671 H3 C1 H5 107.671
H4 C1 H5 107.671 H6 C2 H7 107.671
H6 C2 H8 107.671 H7 C2 H8 107.671
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.418      
2 C -0.418      
3 H 0.139      
4 H 0.139      
5 H 0.139      
6 H 0.139      
7 H 0.139      
8 H 0.139      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.308 0.000 0.000
y 0.000 -14.308 0.000
z 0.000 0.000 -15.152
Traceless
 xyz
x 0.422 0.000 0.000
y 0.000 0.422 0.000
z 0.000 0.000 -0.844
Polar
3z2-r2-1.688
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.069 0.000 0.000
y 0.000 3.071 -0.000
z 0.000 -0.000 3.640


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000