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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: B2PLYP/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 B2PLYP/6-31G
 hartrees
Energy at 0K-116.444921
Energy at 298.15K-116.447680
HF Energy-116.354068
Nuclear repulsion energy58.846001
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 B2PLYP/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3174 3174 0.00 290.77 0.05 0.10
2 A1 1538 1538 0.00 34.55 0.59 0.74
3 A1 1114 1114 0.00 43.04 0.31 0.47
4 B1 905 905 0.00 25.35 0.75 0.86
5 B2 3174 3174 4.27 49.21 0.75 0.86
6 B2 2063 2063 43.90 0.16 0.75 0.86
7 B2 1499 1499 3.46 0.36 0.75 0.86
8 E 3252 3252 6.78 106.37 0.75 0.86
8 E 3252 3252 6.78 106.37 0.75 0.86
9 E 1077 1077 0.30 0.56 0.75 0.86
9 E 1077 1077 0.30 0.56 0.75 0.86
10 E 930 930 72.13 0.06 0.75 0.86
10 E 930 930 72.13 0.06 0.75 0.86
11 E 365 365 4.31 3.61 0.75 0.86
11 E 365 365 4.31 3.61 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12356.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12356.5 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 B2PLYP/6-31G
ABC
4.90369 0.29251 0.29251

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/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 1.316
C3 0.000 0.000 -1.316
H4 0.000 0.923 1.887
H5 0.000 -0.923 1.887
H6 0.923 0.000 -1.887
H7 -0.923 0.000 -1.887

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.31581.31582.10132.10132.10132.1013
C21.31582.63161.08611.08613.33373.3337
C31.31582.63163.33373.33371.08611.0861
H42.10131.08613.33371.84693.99453.9945
H52.10131.08613.33371.84693.99453.9945
H62.10133.33371.08613.99453.99451.8469
H72.10133.33371.08613.99453.99451.8469

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.761 C1 C2 H5 121.761
C1 C3 H6 121.761 C1 C3 H7 121.761
C2 C1 C3 180.000 H4 C2 H5 116.478
H6 C3 H7 116.478
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.179      
2 C -0.409      
3 C -0.409      
4 H 0.160      
5 H 0.160      
6 H 0.160      
7 H 0.160      


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 -19.172 0.000 0.000
y 0.000 -19.160 0.000
z 0.000 0.000 -15.757
Traceless
 xyz
x -1.713 0.000 0.000
y 0.000 -1.696 0.000
z 0.000 0.000 3.409
Polar
3z2-r26.818
x2-y2-0.012
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.403 0.000 0.000
y 0.000 2.399 0.000
z 0.000 0.000 8.353


<r2> (average value of r2) Å2
<r2> 49.698
(<r2>)1/2 7.050