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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVQZ
 hartrees
Energy at 0K-116.503929
Energy at 298.15K-116.506650
HF Energy-115.913546
Nuclear repulsion energy59.454783
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=FULL/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 3191 3054 0.00 318.91 0.06 0.11
2 A1 1490 1427 0.00 17.06 0.71 0.83
3 A1 1105 1058 0.00 37.12 0.20 0.34
4 B1 900 861 0.00 2.35 0.75 0.86
5 B2 3190 3053 0.02 35.68 0.75 0.86
6 B2 2052 1964 53.11 0.55 0.75 0.86
7 B2 1437 1376 3.88 0.02 0.75 0.86
8 E 3283 3142 0.00 84.20 0.75 0.86
8 E 3283 3142 0.00 84.20 0.75 0.86
9 E 1019 975 1.35 0.07 0.75 0.86
9 E 1019 975 1.35 0.07 0.75 0.86
10 E 876 838 53.75 1.30 0.75 0.86
10 E 876 838 53.75 1.30 0.75 0.86
11 E 365 349 6.62 0.90 0.75 0.86
11 E 365 349 6.62 0.90 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12225.4 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 11701.0 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 MP2=FULL/cc-pVQZ
ABC
4.87957 0.29948 0.29948

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/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 1.302
C3 0.000 0.000 -1.302
H4 0.000 0.926 1.854
H5 0.000 -0.926 1.854
H6 0.926 0.000 -1.854
H7 -0.926 0.000 -1.854

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.30241.30242.07222.07222.07222.0722
C21.30242.60471.07761.07763.28923.2892
C31.30242.60473.28923.28921.07761.0776
H42.07221.07763.28921.85153.93223.9322
H52.07221.07763.28921.85153.93223.9322
H62.07223.28921.07763.93223.93221.8515
H72.07223.28921.07763.93223.93221.8515

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 120.787 C1 C2 H5 120.787
C1 C3 H6 120.787 C1 C3 H7 120.787
C2 C1 C3 180.000 H4 C2 H5 118.427
H6 C3 H7 118.427
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability