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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: HF/cc-pCVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at HF/cc-pCVDZ
 hartrees
Energy at 0K-115.874195
Energy at 298.15K 
HF Energy-115.874195
Nuclear repulsion energy59.482331
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 HF/cc-pCVDZ
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 3298 3022 0.00 294.96 0.05 0.09
2 A1 1592 1459 0.00 9.27 0.74 0.85
3 A1 1180 1081 0.00 80.84 0.30 0.46
4 B1 937 858 0.00 11.81 0.75 0.86
5 B2 3296 3020 1.71 53.73 0.75 0.86
6 B2 2201 2017 97.37 0.06 0.75 0.86
7 B2 1525 1397 1.01 0.27 0.75 0.86
8 E 3389 3106 1.93 107.96 0.75 0.86
8 E 3389 3106 1.93 107.96 0.75 0.86
9 E 1099 1007 0.61 0.73 0.75 0.86
9 E 1099 1007 0.61 0.73 0.75 0.86
10 E 980 898 60.03 2.32 0.75 0.86
10 E 980 898 60.03 2.32 0.75 0.86
11 E 406 372 5.46 3.85 0.75 0.86
11 E 406 372 5.46 3.85 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12887.8 cm-1
Scaled (by 0.9163) Zero Point Vibrational Energy (zpe) 11809.1 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 HF/cc-pCVDZ
ABC
4.85139 0.30034 0.30034

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pCVDZ

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 1.299
C3 0.000 0.000 -1.299
H4 0.000 0.928 1.855
H5 0.000 -0.928 1.855
H6 0.928 0.000 -1.855
H7 -0.928 0.000 -1.855

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.29921.29922.07482.07482.07482.0748
C21.29922.59851.08231.08233.28853.2885
C31.29922.59853.28853.28851.08231.0823
H42.07481.08233.28851.85683.93643.9364
H52.07481.08233.28851.85683.93643.9364
H62.07483.28851.08233.93643.93641.8568
H72.07483.28851.08233.93643.93641.8568

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 120.927 C1 C2 H5 120.927
C1 C3 H6 120.927 C1 C3 H7 120.927
C2 C1 C3 180.000 H4 C2 H5 118.147
H6 C3 H7 118.147
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pCVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.191      
2 C -0.059      
3 C -0.059      
4 H 0.077      
5 H 0.077      
6 H 0.077      
7 H 0.077      


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 -19.472 0.000 0.000
y 0.000 -19.472 0.000
z 0.000 0.000 -15.559
Traceless
 xyz
x -1.957 0.000 0.000
y 0.000 -1.957 0.000
z 0.000 0.000 3.913
Polar
3z2-r27.827
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 2.783 0.000 0.000
y 0.000 2.783 0.000
z 0.000 0.000 8.881


<r2> (average value of r2) Å2
<r2> 48.823
(<r2>)1/2 6.987