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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-116.509292
Energy at 298.15K-116.512028
HF Energy-116.383676
Nuclear repulsion energy59.083595
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 3184 3023 0.00 278.91 0.05 0.10
2 A1 1523 1446 0.00 26.31 0.61 0.76
3 A1 1120 1063 0.00 44.50 0.31 0.47
4 B1 897 852 0.00 21.18 0.75 0.86
5 B2 3182 3021 3.58 48.77 0.75 0.86
6 B2 2072 1967 42.01 0.05 0.75 0.86
7 B2 1471 1397 1.51 0.35 0.75 0.86
8 E 3259 3094 3.41 102.20 0.75 0.86
8 E 3259 3094 3.41 102.20 0.75 0.86
9 E 1047 993 0.01 0.25 0.75 0.86
9 E 1047 993 0.01 0.25 0.75 0.86
10 E 873 829 57.70 0.02 0.75 0.86
10 E 873 829 57.70 0.02 0.75 0.86
11 E 378 359 3.10 3.03 0.75 0.86
11 E 378 359 3.10 3.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12281.9 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 11658.0 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 B2PLYP/6-31G*
ABC
4.87496 0.29555 0.29555

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 1.309
C3 0.000 0.000 -1.309
H4 0.000 0.926 1.876
H5 0.000 -0.926 1.876
H6 0.926 0.000 -1.876
H7 -0.926 0.000 -1.876

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.30901.30902.09192.09192.09192.0919
C21.30902.61811.08581.08583.31673.3167
C31.30902.61813.31673.31671.08581.0858
H42.09191.08583.31671.85233.97363.9736
H52.09191.08583.31671.85233.97363.9736
H62.09193.31671.08583.97363.97361.8523
H72.09193.31671.08583.97363.97361.8523

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.462 C1 C2 H5 121.462
C1 C3 H6 121.462 C1 C3 H7 121.462
C2 C1 C3 180.000 H4 C2 H5 117.076
H6 C3 H7 117.076
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 0.326      
2 C -0.515      
3 C -0.515      
4 H 0.176      
5 H 0.176      
6 H 0.176      
7 H 0.176      


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 -18.957 0.000 0.000
y 0.000 -18.946 0.000
z 0.000 0.000 -15.554
Traceless
 xyz
x -1.707 0.000 0.000
y 0.000 -1.690 0.000
z 0.000 0.000 3.397
Polar
3z2-r26.795
x2-y2-0.011
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.552 0.000 0.000
y 0.000 2.549 0.000
z 0.000 0.000 8.277


<r2> (average value of r2) Å2
<r2> 49.197
(<r2>)1/2 7.014