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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: B3LYP/6-311G*

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/6-311G*
 hartrees
Energy at 0K-116.685757
Energy at 298.15K-116.688469
HF Energy-116.685757
Nuclear repulsion energy59.280885
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/6-311G*
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 3121 3016 0.00 302.79 0.07 0.14
2 A1 1492 1442 0.00 20.64 0.67 0.80
3 A1 1111 1073 0.00 52.58 0.30 0.46
4 B1 888 858 0.00 9.77 0.75 0.86
5 B2 3117 3011 7.04 60.92 0.75 0.86
6 B2 2055 1985 66.52 0.12 0.75 0.86
7 B2 1437 1388 3.53 0.00 0.75 0.86
8 E 3190 3082 4.75 112.07 0.75 0.86
8 E 3190 3082 4.75 112.07 0.75 0.86
9 E 1029 994 0.08 0.27 0.75 0.86
9 E 1029 994 0.08 0.27 0.75 0.86
10 E 858 829 60.80 0.45 0.75 0.86
10 E 858 829 60.80 0.45 0.75 0.86
11 E 369 357 6.00 2.13 0.75 0.86
11 E 369 357 6.00 2.13 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12055.0 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 11648.8 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/6-311G*
ABC
4.87279 0.29804 0.29804

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

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 1.303
C3 0.000 0.000 -1.303
H4 0.000 0.926 1.870
H5 0.000 -0.926 1.870
H6 0.926 0.000 -1.870
H7 -0.926 0.000 -1.870

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.30271.30272.08722.08722.08722.0872
C21.30272.60541.08651.08653.30563.3056
C31.30272.60543.30563.30561.08651.0865
H42.08721.08653.30561.85283.96363.9636
H52.08721.08653.30561.85283.96363.9636
H62.08723.30561.08653.96363.96361.8528
H72.08723.30561.08653.96363.96361.8528

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.500 C1 C2 H5 121.500
C1 C3 H6 121.500 C1 C3 H7 121.500
C2 C1 C3 180.000 H4 C2 H5 116.999
H6 C3 H7 116.999
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.147      
2 C -0.522      
3 C -0.522      
4 H 0.224      
5 H 0.224      
6 H 0.224      
7 H 0.224      


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 0.008 0.008


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.393 0.000 0.000
y 0.000 -19.393 0.000
z 0.000 0.000 -15.585
Traceless
 xyz
x -1.904 0.000 0.000
y 0.000 -1.904 0.000
z 0.000 0.000 3.809
Polar
3z2-r27.618
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 2.978 0.000 0.000
y 0.000 2.978 0.000
z 0.000 0.000 8.784


<r2> (average value of r2) Å2
<r2> 49.110
(<r2>)1/2 7.008