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All results from a given calculation for C2H6 (Ethane)

using model chemistry: B3PW91/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-79.832999
Energy at 298.15K-79.838898
HF Energy-79.832999
Nuclear repulsion energy42.307049
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/aug-cc-pVTZ
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 3034 2928 0.00 352.33 0.00 0.01
2 A1g 1415 1365 0.00 0.04 0.11 0.19
3 A1g 1012 976 0.00 11.24 0.17 0.30
4 A1u 302 292 0.00 0.00 0.00 0.00
5 A2u 3035 2929 57.95 0.00 0.00 0.00
6 A2u 1399 1351 1.47 0.00 0.00 0.00
7 Eg 3087 2979 0.00 123.99 0.75 0.86
7 Eg 3087 2979 0.00 124.02 0.75 0.86
8 Eg 1495 1443 0.00 8.51 0.75 0.86
8 Eg 1495 1443 0.00 8.51 0.75 0.86
9 Eg 1215 1172 0.00 0.07 0.75 0.86
9 Eg 1215 1172 0.00 0.07 0.75 0.86
10 Eu 3112 3003 57.77 0.00 0.00 0.00
10 Eu 3112 3003 57.77 0.00 0.00 0.00
11 Eu 1497 1444 9.75 0.00 0.00 0.00
11 Eu 1497 1444 9.75 0.00 0.00 0.00
12 Eu 821 792 4.36 0.00 0.00 0.00
12 Eu 821 792 4.36 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 16323.9 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 15754.2 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 B3PW91/aug-cc-pVTZ
ABC
2.69836 0.67033 0.67033

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVTZ

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 1.160
H4 -0.880 -0.508 1.160
H5 0.880 -0.508 1.160
H6 0.000 -1.016 -1.160
H7 -0.880 0.508 -1.160
H8 0.880 0.508 -1.160

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.52181.09181.09181.09182.17282.17282.1728
C21.52182.17282.17282.17281.09181.09181.0918
H31.09182.17281.76051.76053.08392.53202.5320
H41.09182.17281.76051.76052.53202.53203.0839
H51.09182.17281.76051.76052.53203.08392.5320
H62.17281.09183.08392.53202.53201.76051.7605
H72.17281.09182.53202.53203.08391.76051.7605
H82.17281.09182.53203.08392.53201.76051.7605

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.414 C1 C2 H7 111.414
C1 C2 H8 111.414 C2 C1 H3 111.414
C2 C1 H4 111.414 C2 C1 H5 111.414
H3 C1 H4 107.461 H3 C1 H5 107.461
H4 C1 H5 107.461 H6 C2 H7 107.461
H6 C2 H8 107.461 H7 C2 H8 107.461
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.626      
2 C -0.626      
3 H 0.209      
4 H 0.209      
5 H 0.209      
6 H 0.209      
7 H 0.209      
8 H 0.209      


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 -14.819 0.000 0.000
y 0.000 -14.819 0.000
z 0.000 0.000 -15.523
Traceless
 xyz
x 0.352 0.000 0.000
y 0.000 0.352 0.000
z 0.000 0.000 -0.703
Polar
3z2-r2-1.406
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 4.067 0.000 0.000
y 0.000 4.067 0.000
z 0.000 0.000 4.668


<r2> (average value of r2) Å2
<r2> 30.615
(<r2>)1/2 5.533