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All results from a given calculation for C2H6 (Ethane)

using model chemistry: PBEPBEultrafine/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at PBEPBEultrafine/6-311G**
 hartrees
Energy at 0K-79.723741
Energy at 298.15K-79.729605
HF Energy-79.723741
Nuclear repulsion energy41.993176
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 PBEPBEultrafine/6-311G**
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 2968 2941 0.00      
2 A1g 1375 1362 0.00      
3 A1g 992 983 0.00      
4 A1u 303 300 0.00      
5 A2u 2970 2943 61.65      
6 A2u 1358 1345 2.04      
7 Eg 3023 2995 0.00      
7 Eg 3023 2995 0.00      
8 Eg 1457 1443 0.00      
8 Eg 1457 1443 0.00      
9 Eg 1176 1166 0.00      
9 Eg 1176 1166 0.00      
10 Eu 3048 3020 66.38      
10 Eu 3048 3020 66.38      
11 Eu 1458 1445 11.17      
11 Eu 1458 1445 11.17      
12 Eu 802 794 5.62      
12 Eu 802 794 5.62      

Unscaled Zero Point Vibrational Energy (zpe) 15946.0 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 15800.8 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 PBEPBEultrafine/6-311G**
ABC
2.65485 0.66129 0.66129

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-311G**

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.765
C2 0.000 0.000 -0.765
H3 0.000 1.025 1.168
H4 -0.887 -0.512 1.168
H5 0.887 -0.512 1.168
H6 0.000 -1.025 -1.168
H7 -0.887 0.512 -1.168
H8 0.887 0.512 -1.168

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.53091.10111.10111.10112.18862.18862.1886
C21.53092.18862.18862.18861.10111.10111.1011
H31.10112.18861.77491.77493.10832.55172.5517
H41.10112.18861.77491.77492.55172.55173.1083
H51.10112.18861.77491.77492.55173.10832.5517
H62.18861.10113.10832.55172.55171.77491.7749
H72.18861.10112.55172.55173.10831.77491.7749
H82.18861.10112.55173.10832.55171.77491.7749

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.468 C1 C2 H7 111.468
C1 C2 H8 111.468 C2 C1 H3 111.468
C2 C1 H4 111.468 C2 C1 H5 111.468
H3 C1 H4 107.402 H3 C1 H5 107.402
H4 C1 H5 107.402 H6 C2 H7 107.402
H6 C2 H8 107.402 H7 C2 H8 107.402
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.365      
2 C -0.365      
3 H 0.122      
4 H 0.122      
5 H 0.122      
6 H 0.122      
7 H 0.122      
8 H 0.122      


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 -15.022 0.000 0.000
y 0.000 -15.022 0.000
z 0.000 0.000 -15.605
Traceless
 xyz
x 0.291 0.000 0.000
y 0.000 0.291 0.000
z 0.000 0.000 -0.582
Polar
3z2-r2-1.165
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 3.729 0.000 0.000
y 0.000 3.729 0.000
z 0.000 0.000 4.146


<r2> (average value of r2) Å2
<r2> 31.027
(<r2>)1/2 5.570