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: M06-2X/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at M06-2X/6-31+G**
 hartrees
Energy at 0K-116.603065
Energy at 298.15K-116.605812
HF Energy-116.603065
Nuclear repulsion energy59.168095
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 M06-2X/6-31+G**
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 3180 3028 0.00 324.05 0.07 0.13
2 A1 1490 1419 0.00 19.37 0.74 0.85
3 A1 1123 1069 0.00 63.05 0.24 0.38
4 B1 879 837 0.00 2.54 0.75 0.86
5 B2 3177 3026 0.00 56.21 0.75 0.86
6 B2 2090 1990 83.48 7.76 0.75 0.86
7 B2 1424 1356 3.43 0.05 0.75 0.86
8 E 3263 3107 0.41 108.22 0.75 0.86
8 E 3263 3107 0.41 108.22 0.75 0.86
9 E 1017 969 0.16 0.01 0.75 0.86
9 E 1017 969 0.16 0.01 0.75 0.86
10 E 888 846 70.51 1.32 0.75 0.86
10 E 888 846 70.51 1.32 0.75 0.86
11 E 381 363 9.16 0.91 0.75 0.86
11 E 381 363 9.16 0.91 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12231.4 cm-1
Scaled (by 0.9522) Zero Point Vibrational Energy (zpe) 11646.7 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 M06-2X/6-31+G**
ABC
4.82314 0.29686 0.29686

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31+G**

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 1.307
C3 0.000 0.000 -1.307
H4 0.000 0.931 1.865
H5 0.000 -0.931 1.865
H6 0.931 0.000 -1.865
H7 -0.931 0.000 -1.865

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.30721.30722.08492.08492.08492.0849
C21.30722.61441.08571.08573.30643.3064
C31.30722.61443.30643.30641.08571.0857
H42.08491.08573.30641.86233.95643.9564
H52.08491.08573.30641.86233.95643.9564
H62.08493.30641.08573.95643.95641.8623
H72.08493.30641.08573.95643.95641.8623

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 120.944 C1 C2 H5 120.944
C1 C3 H6 120.944 C1 C3 H7 120.944
C2 C1 C3 180.000 H4 C2 H5 118.111
H6 C3 H7 118.111
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.127      
2 C -0.414      
3 C -0.414      
4 H 0.175      
5 H 0.175      
6 H 0.175      
7 H 0.175      


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 -19.641 0.000 0.000
y 0.000 -19.641 0.000
z 0.000 0.000 -15.595
Traceless
 xyz
x -2.023 0.000 0.000
y 0.000 -2.023 0.000
z 0.000 0.000 4.046
Polar
3z2-r28.093
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 3.472 0.000 0.000
y 0.000 3.472 0.000
z 0.000 0.000 9.083


<r2> (average value of r2) Å2
<r2> 49.317
(<r2>)1/2 7.023