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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-116.264952
Energy at 298.15K-116.267633
HF Energy-115.870826
Nuclear repulsion energy58.522038
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/cc-pVDZ
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 3186 3035 0.00 285.22 0.05 0.09
2 A1 1480 1410 0.00 23.67 0.62 0.77
3 A1 1096 1044 0.00 28.68 0.29 0.45
4 B1 884 842 0.00 14.77 0.75 0.86
5 B2 3187 3035 0.50 51.57 0.75 0.86
6 B2 2049 1952 28.90 0.13 0.75 0.86
7 B2 1426 1358 2.04 0.37 0.75 0.86
8 E 3287 3131 0.56 99.27 0.75 0.86
8 E 3287 3131 0.56 99.27 0.75 0.86
9 E 1014 966 0.63 0.08 0.75 0.86
9 E 1014 966 0.63 0.08 0.75 0.86
10 E 846 806 52.54 0.12 0.75 0.86
10 E 846 806 52.54 0.12 0.75 0.86
11 E 358 341 3.95 2.39 0.75 0.86
11 E 358 341 3.95 2.39 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12159.2 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 11581.6 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 MP2/cc-pVDZ
ABC
4.73406 0.29013 0.29013

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

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 1.323
C3 0.000 0.000 -1.323
H4 0.000 0.940 1.885
H5 0.000 -0.940 1.885
H6 0.940 0.000 -1.885
H7 -0.940 0.000 -1.885

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.32301.32302.10602.10602.10602.1060
C21.32302.64591.09491.09493.34243.3424
C31.32302.64593.34243.34241.09491.0949
H42.10601.09493.34241.87973.99673.9967
H52.10601.09493.34241.87973.99673.9967
H62.10603.34241.09493.99673.99671.8797
H72.10603.34241.09493.99673.99671.8797

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 120.863 C1 C2 H5 120.863
C1 C3 H6 120.863 C1 C3 H7 120.863
C2 C1 C3 180.000 H4 C2 H5 118.275
H6 C3 H7 118.275
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability