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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: wB97X-D/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-116.654291
Energy at 298.15K-116.657046
HF Energy-116.654291
Nuclear repulsion energy59.513551
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 wB97X-D/cc-pVTZ
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 3155 3016 0.00 315.02 0.07 0.13
2 A1 1491 1425 0.00 13.76 0.75 0.86
3 A1 1120 1071 0.00 58.91 0.27 0.42
4 B1 889 850 0.00 5.32 0.75 0.86
5 B2 3153 3014 0.72 50.44 0.75 0.86
6 B2 2080 1988 95.63 0.12 0.75 0.86
7 B2 1428 1365 4.72 0.01 0.75 0.86
8 E 3236 3094 0.62 95.85 0.75 0.86
8 E 3236 3094 0.62 95.85 0.75 0.86
9 E 1023 978 0.45 0.28 0.75 0.86
9 E 1023 978 0.45 0.28 0.75 0.86
10 E 887 848 58.86 1.20 0.75 0.86
10 E 887 848 58.86 1.20 0.75 0.86
11 E 377 360 6.80 1.74 0.75 0.86
11 E 377 360 6.80 1.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12180.5 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 11644.6 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 wB97X-D/cc-pVTZ
ABC
4.85965 0.30068 0.30068

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

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 1.298
C3 0.000 0.000 -1.298
H4 0.000 0.928 1.856
H5 0.000 -0.928 1.856
H6 0.928 0.000 -1.856
H7 -0.928 0.000 -1.856

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.29821.29822.07472.07472.07472.0747
C21.29822.59641.08231.08233.28753.2875
C31.29822.59643.28753.28751.08231.0823
H42.07471.08233.28751.85533.93653.9365
H52.07471.08233.28751.85533.93653.9365
H62.07473.28751.08233.93653.93651.8553
H72.07473.28751.08233.93653.93651.8553

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.006 C1 C2 H5 121.006
C1 C3 H6 121.006 C1 C3 H7 121.006
C2 C1 C3 180.000 H4 C2 H5 117.988
H6 C3 H7 117.988
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.114      
2 C -0.312      
3 C -0.312      
4 H 0.127      
5 H 0.127      
6 H 0.127      
7 H 0.127      


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 -19.257 0.000 0.000
y 0.000 -19.257 0.000
z 0.000 0.000 -15.391
Traceless
 xyz
x -1.933 0.000 0.000
y 0.000 -1.933 0.000
z 0.000 0.000 3.866
Polar
3z2-r27.732
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 3.504 0.000 0.000
y 0.000 3.504 0.000
z 0.000 0.000 8.977


<r2> (average value of r2) Å2
<r2> 48.664
(<r2>)1/2 6.976