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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: CCSD=FULL/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at CCSD=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-116.474927
Energy at 298.15K 
HF Energy-115.907270
Nuclear repulsion energy59.401637
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 CCSD=FULL/daug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD=FULL/daug-cc-pVTZ
ABC
4.88482 0.29889 0.29889

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/daug-cc-pVTZ

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 1.303
C3 0.000 0.000 -1.303
H4 0.000 0.925 1.858
H5 0.000 -0.925 1.858
H6 0.925 0.000 -1.858
H7 -0.925 0.000 -1.858

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.30311.30312.07572.07572.07572.0757
C21.30312.60631.07891.07893.29393.2939
C31.30312.60633.29393.29391.07891.0789
H42.07571.07893.29391.85053.93993.9399
H52.07571.07893.29391.85053.93993.9399
H62.07573.29391.07893.93993.93991.8505
H72.07573.29391.07893.93993.93991.8505

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 120.956 C1 C2 H5 120.956
C1 C3 H6 120.956 C1 C3 H7 120.956
C2 C1 C3 180.000 H4 C2 H5 118.088
H6 C3 H7 118.088
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability