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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: HF/aug-cc-pVQZ

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/aug-cc-pVQZ
 hartrees
Energy at 0K-115.914222
Energy at 298.15K-115.917136
HF Energy-115.914222
Nuclear repulsion energy59.876794
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/aug-cc-pVQZ
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 3282 2981 0.00 301.86 0.07 0.13
2 A1 1607 1460 0.00 10.80 0.62 0.76
3 A1 1173 1066 0.00 104.20 0.15 0.27
4 B1 941 855 0.00 0.63 0.75 0.86
5 B2 3279 2979 2.08 35.85 0.75 0.86
6 B2 2169 1970 126.93 7.01 0.75 0.86
7 B2 1545 1404 0.85 0.49 0.75 0.86
8 E 3360 3053 1.27 90.22 0.75 0.86
8 E 3360 3053 1.27 90.22 0.75 0.86
9 E 1109 1008 2.08 0.55 0.75 0.86
9 E 1109 1008 2.08 0.55 0.75 0.86
10 E 997 906 63.77 5.74 0.75 0.86
10 E 997 906 63.77 5.74 0.75 0.86
11 E 409 371 8.46 1.12 0.75 0.86
11 E 409 371 8.46 1.12 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12872.8 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 11695.0 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 HF/aug-cc-pVQZ
ABC
4.93242 0.30409 0.30409

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

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 1.292
C3 0.000 0.000 -1.292
H4 0.000 0.921 1.843
H5 0.000 -0.921 1.843
H6 0.921 0.000 -1.843
H7 -0.921 0.000 -1.843

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.29151.29152.06022.06022.06022.0602
C21.29152.58311.07331.07333.26703.2670
C31.29152.58313.26703.26701.07331.0733
H42.06021.07333.26701.84153.90933.9093
H52.06021.07333.26701.84153.90933.9093
H62.06023.26701.07333.90933.90931.8415
H72.06023.26701.07333.90933.90931.8415

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 120.919 C1 C2 H5 120.919
C1 C3 H6 120.919 C1 C3 H7 120.919
C2 C1 C3 180.000 H4 C2 H5 118.163
H6 C3 H7 118.163
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.262      
2 C -0.641      
3 C -0.641      
4 H 0.386      
5 H 0.386      
6 H 0.386      
7 H 0.386      


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 -19.751 0.000 0.000
y 0.000 -19.751 0.000
z 0.000 0.000 -15.607
Traceless
 xyz
x -2.072 0.000 0.000
y 0.000 -2.072 0.000
z 0.000 0.000 4.144
Polar
3z2-r28.289
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 4.286 0.000 0.000
y 0.000 4.286 0.000
z 0.000 0.000 9.305


<r2> (average value of r2) Å2
<r2> 48.468
(<r2>)1/2 6.962