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All results from a given calculation for C2H6 (Ethane)

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/CEP-31G
 hartrees
Energy at 0K-14.893897
Energy at 298.15K-14.899771
HF Energy-14.893897
Nuclear repulsion energy26.189640
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 B3LYPultrafine/CEP-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 3034 2938 0.00      
2 A1g 1431 1386 0.00      
3 A1g 1006 975 0.00      
4 A1u 288 279 0.00      
5 A2u 3028 2932 91.10      
6 A2u 1421 1376 8.56      
7 Eg 3094 2996 0.00      
7 Eg 3094 2996 0.00      
8 Eg 1513 1465 0.00      
8 Eg 1513 1465 0.00      
9 Eg 1220 1181 0.00      
9 Eg 1220 1181 0.00      
10 Eu 3124 3026 153.51      
10 Eu 3124 3026 153.57      
11 Eu 1517 1469 16.69      
11 Eu 1517 1469 16.69      
12 Eu 827 801 10.99      
12 Eu 827 801 10.99      

Unscaled Zero Point Vibrational Energy (zpe) 16399.3 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 15881.1 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 B3LYPultrafine/CEP-31G
ABC
2.62282 0.64469 0.64469

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/CEP-31G

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.779
C2 0.000 0.000 -0.779
H3 0.000 1.031 1.178
H4 -0.893 -0.515 1.178
H5 0.893 -0.515 1.178
H6 0.000 -1.031 -1.178
H7 -0.893 0.515 -1.178
H8 0.893 0.515 -1.178

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.55721.10551.10551.10552.21122.21122.2112
C21.55722.21122.21122.21121.10551.10551.1055
H31.10552.21121.78571.78573.13022.57082.5708
H41.10552.21121.78571.78572.57082.57083.1302
H51.10552.21121.78571.78572.57083.13022.5708
H62.21121.10553.13022.57082.57081.78571.7857
H72.21121.10552.57082.57083.13021.78571.7857
H82.21121.10552.57083.13022.57081.78571.7857

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.153 C1 C2 H7 111.153
C1 C2 H8 111.153 C2 C1 H3 111.153
C2 C1 H4 111.153 C2 C1 H5 111.153
H3 C1 H4 107.738 H3 C1 H5 107.738
H4 C1 H5 107.738 H6 C2 H7 107.738
H6 C2 H8 107.738 H7 C2 H8 107.738
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.413      
2 C -0.413      
3 H 0.138      
4 H 0.138      
5 H 0.138      
6 H 0.138      
7 H 0.138      
8 H 0.138      


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 -14.525 0.000 0.000
y 0.000 -14.525 0.000
z 0.000 0.000 -15.250
Traceless
 xyz
x 0.362 0.000 0.000
y 0.000 0.362 0.000
z 0.000 0.000 -0.725
Polar
3z2-r2-1.449
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 3.073 0.000 0.000
y 0.000 3.074 0.000
z 0.000 0.000 3.621


<r2> (average value of r2) Å2
<r2> 28.770
(<r2>)1/2 5.364