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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: PBEPBE/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at PBEPBE/6-31G
 hartrees
Energy at 0K-116.471171
Energy at 298.15K-116.473876
HF Energy-116.471171
Nuclear repulsion energy58.630107
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 PBEPBE/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3089 3046 0.00 314.87 0.06 0.11
2 A1 1474 1453 0.00 33.75 0.60 0.75
3 A1 1100 1085 0.00 46.89 0.31 0.48
4 B1 872 860 0.00 25.75 0.75 0.86
5 B2 3087 3044 3.81 49.61 0.75 0.86
6 B2 2034 2006 51.46 0.10 0.75 0.86
7 B2 1431 1411 7.01 0.33 0.75 0.86
8 E 3163 3119 6.02 114.16 0.75 0.86
8 E 3163 3119 6.02 114.16 0.75 0.86
9 E 1024 1010 0.87 0.45 0.75 0.86
9 E 1024 1010 0.87 0.45 0.75 0.86
10 E 871 859 76.20 0.01 0.75 0.86
10 E 871 859 76.20 0.01 0.75 0.86
11 E 369 363 4.49 3.24 0.75 0.86
11 E 369 363 4.49 3.24 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11968.2 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 11803.0 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 PBEPBE/6-31G
ABC
4.83124 0.29095 0.29095

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.000 0.000 1.318
C3 0.000 0.000 -1.318
H4 0.000 0.930 1.896
H5 0.000 -0.930 1.896
H6 0.930 0.000 -1.896
H7 -0.930 0.000 -1.896

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.31811.31812.11222.11222.11222.1122
C21.31812.63631.09541.09543.34633.3463
C31.31812.63633.34633.34631.09541.0954
H42.11221.09543.34631.86074.01434.0143
H52.11221.09543.34631.86074.01434.0143
H62.11223.34631.09544.01434.01431.8607
H72.11223.34631.09544.01434.01431.8607

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.859 C1 C2 H5 121.859
C1 C3 H6 121.859 C1 C3 H7 121.859
C2 C1 C3 180.000 H4 C2 H5 116.283
H6 C3 H7 116.283
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.245      
2 C -0.461      
3 C -0.461      
4 H 0.169      
5 H 0.169      
6 H 0.169      
7 H 0.169      


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 -18.941 0.000 0.000
y 0.000 -18.941 0.000
z 0.000 0.000 -15.392
Traceless
 xyz
x -1.774 0.000 0.000
y 0.000 -1.774 0.000
z 0.000 0.000 3.549
Polar
3z2-r27.098
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 2.474 0.000 0.000
y 0.000 2.474 0.000
z 0.000 0.000 8.554


<r2> (average value of r2) Å2
<r2> 49.787
(<r2>)1/2 7.056