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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: B3LYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at B3LYP/6-31+G**
 hartrees
Energy at 0K-116.671601
Energy at 298.15K-116.674330
HF Energy-116.671601
Nuclear repulsion energy59.064861
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 B3LYP/6-31+G**
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 3142 3029 0.00 329.39 0.08 0.15
2 A1 1488 1435 0.00 21.38 0.75 0.85
3 A1 1111 1072 0.00 64.91 0.22 0.37
4 B1 878 847 0.00 1.25 0.75 0.86
5 B2 3138 3026 2.30 53.35 0.75 0.86
6 B2 2050 1977 84.25 9.63 0.75 0.86
7 B2 1431 1380 3.18 0.02 0.75 0.86
8 E 3216 3101 1.50 112.45 0.75 0.86
8 E 3216 3101 1.50 112.45 0.75 0.86
9 E 1021 984 0.39 0.00 0.75 0.86
9 E 1021 984 0.39 0.00 0.75 0.86
10 E 868 836 67.60 2.69 0.75 0.86
10 E 868 836 67.60 2.69 0.75 0.86
11 E 378 364 8.83 0.81 0.75 0.86
11 E 378 364 8.83 0.81 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12101.8 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 11668.6 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 B3LYP/6-31+G**
ABC
4.84460 0.29561 0.29561

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

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 0.929 1.874
H5 0.000 -0.929 1.874
H6 0.929 0.000 -1.874
H7 -0.929 0.000 -1.874

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.30911.30912.09182.09182.09182.0918
C21.30912.61811.08741.08743.31603.3160
C31.30912.61813.31603.31601.08741.0874
H42.09181.08743.31601.85813.97193.9719
H52.09181.08743.31601.85813.97193.9719
H62.09183.31601.08743.97193.97191.8581
H72.09183.31601.08743.97193.97191.8581

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.309 C1 C2 H5 121.309
C1 C3 H6 121.309 C1 C3 H7 121.309
C2 C1 C3 180.000 H4 C2 H5 117.382
H6 C3 H7 117.382
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.531      
2 C -0.582      
3 C -0.582      
4 H 0.158      
5 H 0.158      
6 H 0.158      
7 H 0.158      


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 0.001 0.000 0.011 0.011


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.722 0.000 0.000
y 0.000 -19.722 0.000
z 0.000 0.000 -15.875
Traceless
 xyz
x -1.924 0.000 0.000
y 0.000 -1.924 0.000
z 0.000 0.000 3.847
Polar
3z2-r27.694
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 3.561 0.000 0.000
y 0.000 3.561 0.000
z 0.000 0.000 9.400


<r2> (average value of r2) Å2
<r2> 49.583
(<r2>)1/2 7.042