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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-116.275631
Energy at 298.15K-116.278323
HF Energy-115.882866
Nuclear repulsion energy58.971308
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 MP2/6-311G*
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 3175 3018 0.00 260.96 0.06 0.12
2 A1 1501 1426 0.00 25.32 0.63 0.78
3 A1 1094 1040 0.00 27.56 0.28 0.43
4 B1 901 856 0.00 9.67 0.75 0.86
5 B2 3175 3018 0.97 57.04 0.75 0.86
6 B2 2042 1941 34.57 0.01 0.75 0.86
7 B2 1452 1380 3.82 0.00 0.75 0.86
8 E 3266 3104 1.24 92.68 0.75 0.86
8 E 3266 3104 1.24 92.68 0.75 0.86
9 E 1033 982 0.19 0.09 0.75 0.86
9 E 1033 982 0.19 0.09 0.75 0.86
10 E 852 810 64.25 0.14 0.75 0.86
10 E 852 810 64.25 0.14 0.75 0.86
11 E 360 342 6.32 1.74 0.75 0.86
11 E 360 342 6.32 1.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12181.3 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 11575.9 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 MP2/6-311G*
ABC
4.84150 0.29433 0.29433

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

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 1.313
C3 0.000 0.000 -1.313
H4 0.000 0.929 1.874
H5 0.000 -0.929 1.874
H6 0.929 0.000 -1.874
H7 -0.929 0.000 -1.874

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.31301.31302.09172.09172.09172.0917
C21.31302.62611.08551.08553.31973.3197
C31.31302.62613.31973.31971.08551.0855
H42.09171.08553.31971.85873.97163.9716
H52.09171.08553.31971.85873.97163.9716
H62.09173.31971.08553.97163.97161.8587
H72.09173.31971.08553.97163.97161.8587

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.111 C1 C2 H5 121.111
C1 C3 H6 121.111 C1 C3 H7 121.111
C2 C1 C3 180.000 H4 C2 H5 117.778
H6 C3 H7 117.778
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability