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All results from a given calculation for C2H6 (Ethane)

using model chemistry: B3PW91/6-311+G(3df,2pd)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at B3PW91/6-311+G(3df,2pd)
 hartrees
Energy at 0K-79.831010
Energy at 298.15K-79.836903
HF Energy-79.831010
Nuclear repulsion energy42.312071
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 B3PW91/6-311+G(3df,2pd)
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 3035 3035 0.00      
2 A1g 1415 1415 0.00      
3 A1g 1012 1012 0.00      
4 A1u 304 304 0.00      
5 A2u 3035 3035 56.38      
6 A2u 1400 1400 1.91      
7 Eg 3090 3090 0.00      
7 Eg 3090 3090 0.00      
8 Eg 1497 1497 0.00      
8 Eg 1497 1497 0.00      
9 Eg 1213 1213 0.00      
9 Eg 1213 1213 0.00      
10 Eu 3115 3115 57.75      
10 Eu 3115 3115 57.75      
11 Eu 1498 1498 10.34      
11 Eu 1498 1498 10.34      
12 Eu 820 820 4.46      
12 Eu 820 820 4.45      

Unscaled Zero Point Vibrational Energy (zpe) 16333.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16333.7 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 B3PW91/6-311+G(3df,2pd)
ABC
2.69935 0.67035 0.67035

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311+G(3df,2pd)

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.761
C2 0.000 0.000 -0.761
H3 0.000 1.016 1.159
H4 -0.880 -0.508 1.159
H5 0.880 -0.508 1.159
H6 0.000 -1.016 -1.159
H7 -0.880 0.508 -1.159
H8 0.880 0.508 -1.159

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52211.09151.09151.09152.17252.17252.1725
C21.52212.17252.17252.17251.09151.09151.0915
H31.09152.17251.76021.76023.08312.53132.5313
H41.09152.17251.76021.76022.53132.53133.0831
H51.09152.17251.76021.76022.53133.08312.5313
H62.17251.09153.08312.53132.53131.76021.7602
H72.17251.09152.53132.53133.08311.76021.7602
H82.17251.09152.53133.08312.53131.76021.7602

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.394 C1 C2 H7 111.394
C1 C2 H8 111.394 C2 C1 H3 111.394
C2 C1 H4 111.394 C2 C1 H5 111.394
H3 C1 H4 107.481 H3 C1 H5 107.481
H4 C1 H5 107.482 H6 C2 H7 107.481
H6 C2 H8 107.481 H7 C2 H8 107.482
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.124      
2 C -0.124      
3 H 0.041      
4 H 0.041      
5 H 0.041      
6 H 0.041      
7 H 0.041      
8 H 0.041      


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 -14.834 0.000 0.000
y 0.000 -14.834 0.000
z 0.000 0.000 -15.465
Traceless
 xyz
x 0.316 0.000 0.000
y 0.000 0.316 0.000
z 0.000 0.000 -0.631
Polar
3z2-r2-1.262
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 3.961 0.000 0.000
y 0.000 3.961 0.000
z 0.000 0.000 4.513


<r2> (average value of r2) Å2
<r2> 30.605
(<r2>)1/2 5.532