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All results from a given calculation for C2H6 (Ethane)

using model chemistry: PBEPBEultrafine/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-14.882224
Energy at 298.15K-14.888097
HF Energy-14.882224
Nuclear repulsion energy26.238962
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/CEP-121G
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 2937 2937 0.00      
2 A1g 1395 1395 0.00      
3 A1g 998 998 0.00      
4 A1u 292 292 0.00      
5 A2u 2931 2931 83.72      
6 A2u 1386 1386 7.53      
7 Eg 3012 3012 0.00      
7 Eg 3012 3012 0.00      
8 Eg 1483 1483 0.00      
8 Eg 1483 1483 0.00      
9 Eg 1189 1189 0.00      
9 Eg 1189 1189 0.00      
10 Eu 3042 3042 98.34      
10 Eu 3042 3042 98.35      
11 Eu 1487 1487 16.74      
11 Eu 1487 1487 16.74      
12 Eu 810 810 7.66      
12 Eu 810 810 7.66      

Unscaled Zero Point Vibrational Energy (zpe) 15992.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15992.2 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 PBEPBEultrafine/CEP-121G
ABC
2.62617 0.64982 0.64982

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/CEP-121G

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.774
C2 0.000 0.000 -0.774
H3 0.000 1.030 1.175
H4 -0.892 -0.515 1.175
H5 0.892 -0.515 1.175
H6 0.000 -1.030 -1.175
H7 -0.892 0.515 -1.175
H8 0.892 0.515 -1.175

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7 H8
C11.54801.10581.10581.10582.20502.20502.2050
C21.54802.20502.20502.20501.10581.10581.1058
H31.10582.20501.78461.78463.12622.56682.5668
H41.10582.20501.78461.78462.56682.56683.1262
H51.10582.20501.78461.78462.56683.12622.5668
H62.20501.10583.12622.56682.56681.78461.7846
H72.20501.10582.56682.56683.12621.78461.7846
H82.20501.10582.56683.12622.56681.78461.7846

picture of Ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.288 C1 C2 H7 111.288
C1 C2 H8 111.288 C2 C1 H3 111.288
C2 C1 H4 111.288 C2 C1 H5 111.288
H3 C1 H4 107.595 H3 C1 H5 107.595
H4 C1 H5 107.595 H6 C2 H7 107.595
H6 C2 H8 107.595 H7 C2 H8 107.595
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.486      
2 C -0.486      
3 H 0.162      
4 H 0.162      
5 H 0.162      
6 H 0.162      
7 H 0.162      
8 H 0.162      


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 -14.988 0.000 0.000
y 0.000 -14.988 0.000
z 0.000 0.000 -15.555
Traceless
 xyz
x 0.284 0.000 0.000
y 0.000 0.284 0.000
z 0.000 0.000 -0.567
Polar
3z2-r2-1.134
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 3.765 0.000 0.000
y 0.000 3.765 0.000
z 0.000 0.000 4.015


<r2> (average value of r2) Å2
<r2> 28.931
(<r2>)1/2 5.379