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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: LSDA/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 LSDA/6-31G*
 hartrees
Energy at 0K-115.970069
Energy at 298.15K-115.972746
Nuclear repulsion energy59.052703
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 LSDA/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 3087 3029 0.00      
2 A1 1444 1417 0.00      
3 A1 1110 1090 0.00      
4 B1 864 848 0.00      
5 B2 3084 3026 0.02      
6 B2 2073 2035 61.24      
7 B2 1376 1350 8.62      
8 E 3160 3101 0.39      
8 E 3160 3101 0.39      
9 E 985 967 0.98      
9 E 985 967 0.98      
10 E 813 798 66.50      
10 E 813 798 66.50      
11 E 385 378 4.21      
11 E 385 378 4.21      

Unscaled Zero Point Vibrational Energy (zpe) 11861.9 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 11640.1 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 LSDA/6-31G*
ABC
4.78576 0.29648 0.29648

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/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 1.305
C3 0.000 0.000 -1.305
H4 0.000 0.935 1.879
H5 0.000 -0.935 1.879
H6 0.935 0.000 -1.879
H7 -0.935 0.000 -1.879

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.30491.30492.09862.09862.09862.0986
C21.30492.60981.09701.09703.31823.3182
C31.30492.60983.31823.31821.09701.0970
H42.09861.09703.31821.86953.98363.9836
H52.09861.09703.31821.86953.98363.9836
H62.09863.31821.09703.98363.98361.8695
H72.09863.31821.09703.98363.98361.8695

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.555 C1 C2 H5 121.555
C1 C3 H6 121.555 C1 C3 H7 121.555
C2 C1 C3 180.000 H4 C2 H5 116.890
H6 C3 H7 116.890
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.432      
2 C -0.600      
3 C -0.600      
4 H 0.192      
5 H 0.192      
6 H 0.192      
7 H 0.192      


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 -18.799 0.000 0.000
y 0.000 -18.799 0.000
z 0.000 0.000 -15.278
Traceless
 xyz
x -1.761 0.000 0.000
y 0.000 -1.761 0.000
z 0.000 0.000 3.521
Polar
3z2-r27.043
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 2.643 0.000 0.000
y 0.000 2.643 0.000
z 0.000 0.000 8.495


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000