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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: CCSD/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/daug-cc-pVTZ
 hartrees
Energy at 0K-116.417042
Energy at 298.15K 
HF Energy-115.906778
Nuclear repulsion energy59.187610
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/daug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD/daug-cc-pVTZ
ABC
4.85244 0.29666 0.29666

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/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 1.308
C3 0.000 0.000 -1.308
H4 0.000 0.928 1.864
H5 0.000 -0.928 1.864
H6 0.928 0.000 -1.864
H7 -0.928 0.000 -1.864

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.30831.30832.08232.08232.08232.0823
C21.30832.61671.08191.08193.30533.3053
C31.30832.61673.30533.30531.08191.0819
H42.08231.08193.30531.85663.95233.9523
H52.08231.08193.30531.85663.95233.9523
H62.08233.30531.08193.95233.95231.8566
H72.08233.30531.08193.95233.95231.8566

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 120.902 C1 C2 H5 120.902
C1 C3 H6 120.902 C1 C3 H7 120.902
C2 C1 C3 180.000 H4 C2 H5 118.197
H6 C3 H7 118.197
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability