return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH2CCH2 (allene)

using model chemistry: wB97X-D/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 wB97X-D/6-31G
 hartrees
Energy at 0K-116.585752
Energy at 298.15K-116.588552
HF Energy-116.585752
Nuclear repulsion energy59.093156
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/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 3182 3182 0.00 288.87 0.05 0.10
2 A1 1532 1532 0.00 26.09 0.63 0.77
3 A1 1134 1134 0.00 53.11 0.32 0.48
4 B1 901 901 0.00 24.54 0.75 0.86
5 B2 3181 3181 2.57 49.37 0.75 0.86
6 B2 2111 2111 67.16 0.24 0.75 0.86
7 B2 1483 1483 6.30 0.27 0.75 0.86
8 E 3266 3266 5.01 104.66 0.75 0.86
8 E 3266 3266 5.01 104.66 0.75 0.86
9 E 1071 1071 1.11 0.94 0.75 0.86
9 E 1071 1071 1.11 0.94 0.75 0.86
10 E 944 944 82.53 0.18 0.75 0.86
10 E 944 944 82.53 0.18 0.75 0.86
11 E 382 382 5.63 3.80 0.75 0.86
11 E 382 382 5.63 3.80 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12424.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12424.2 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/6-31G
ABC
4.88141 0.29562 0.29562

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/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 1.309
C3 0.000 0.000 -1.309
H4 0.000 0.926 1.876
H5 0.000 -0.926 1.876
H6 0.926 0.000 -1.876
H7 -0.926 0.000 -1.876

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.30881.30882.09202.09202.09202.0920
C21.30882.61751.08561.08563.31673.3167
C31.30882.61753.31673.31671.08561.0856
H42.09201.08563.31671.85113.97403.9740
H52.09201.08563.31671.85113.97403.9740
H62.09203.31671.08563.97403.97401.8511
H72.09203.31671.08563.97403.97401.8511

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.510 C1 C2 H5 121.510
C1 C3 H6 121.510 C1 C3 H7 121.510
C2 C1 C3 180.000 H4 C2 H5 116.981
H6 C3 H7 116.981
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.197      
2 C -0.466      
3 C -0.466      
4 H 0.184      
5 H 0.184      
6 H 0.184      
7 H 0.184      


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 -18.931 0.000 0.000
y 0.000 -18.931 0.000
z 0.000 0.000 -15.250
Traceless
 xyz
x -1.840 0.000 0.000
y 0.000 -1.840 0.000
z 0.000 0.000 3.681
Polar
3z2-r27.361
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 2.408 0.000 0.000
y 0.000 2.408 0.000
z 0.000 0.000 8.434


<r2> (average value of r2) Å2
<r2> 49.118
(<r2>)1/2 7.008