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All results from a given calculation for C2H6 (Ethane)

using model chemistry: B2PLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at B2PLYP/6-31G*
 hartrees
Energy at 0K-79.707397
Energy at 298.15K-79.713333
HF Energy-79.620164
Nuclear repulsion energy42.198053
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1g 3083 2926 0.00 201.55 0.01 0.03
2 A1g 1476 1401 0.00 7.01 0.74 0.85
3 A1g 1027 975 0.00 9.35 0.30 0.46
4 A1u 321 305 0.00 0.00 0.00 0.00
5 A2u 3083 2927 54.50 0.00 0.01 0.03
6 A2u 1452 1378 0.54 0.00 0.00 0.00
7 Eg 3142 2982 0.00 130.08 0.75 0.86
7 Eg 3142 2982 0.00 130.08 0.75 0.86
8 Eg 1553 1475 0.00 39.13 0.75 0.86
8 Eg 1553 1475 0.00 39.13 0.75 0.86
9 Eg 1256 1192 0.00 3.31 0.75 0.86
9 Eg 1256 1192 0.00 3.31 0.75 0.86
10 Eu 3165 3004 68.53 0.00 0.00 0.00
10 Eu 3165 3004 68.53 0.00 0.00 0.00
11 Eu 1559 1479 7.55 0.00 0.00 0.00
11 Eu 1559 1479 7.55 0.00 0.00 0.00
12 Eu 842 799 4.32 0.00 0.00 0.00
12 Eu 842 799 4.32 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 16737.4 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 15887.1 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/6-31G*
ABC
2.68370 0.66641 0.66641

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.764
C2 0.000 0.000 -0.764
H3 0.000 1.019 1.161
H4 -0.883 -0.510 1.161
H5 0.883 -0.510 1.161
H6 0.000 -1.019 -1.161
H7 -0.883 0.510 -1.161
H8 0.883 0.510 -1.161

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52801.09371.09371.09372.17792.17792.1779
C21.52802.17792.17792.17791.09371.09371.0937
H31.09372.17791.76531.76533.08932.53522.5352
H41.09372.17791.76531.76532.53522.53523.0893
H51.09372.17791.76531.76532.53523.08932.5352
H62.17791.09373.08932.53522.53521.76531.7653
H72.17791.09372.53522.53523.08931.76531.7653
H82.17791.09372.53523.08932.53521.76531.7653

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.264 C1 C2 H7 111.264
C1 C2 H8 111.264 C2 C1 H3 111.264
C2 C1 H4 111.264 C2 C1 H5 111.264
H3 C1 H4 107.620 H3 C1 H5 107.620
H4 C1 H5 107.620 H6 C2 H7 107.620
H6 C2 H8 107.620 H7 C2 H8 107.620
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.449      
2 C -0.449      
3 H 0.150      
4 H 0.150      
5 H 0.150      
6 H 0.150      
7 H 0.150      
8 H 0.150      


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 -14.788 0.000 0.000
y 0.000 -14.788 0.000
z 0.000 0.000 -15.349
Traceless
 xyz
x 0.280 0.000 0.000
y 0.000 0.280 0.000
z 0.000 0.000 -0.561
Polar
3z2-r2-1.122
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 3.291 0.000 0.000
y 0.000 3.291 0.000
z 0.000 0.000 3.488


<r2> (average value of r2) Å2
<r2> 30.673
(<r2>)1/2 5.538