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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: CCD/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 CCD/cc-pVDZ
 hartrees
Energy at 0K-116.296185
Energy at 298.15K 
HF Energy-115.870783
Nuclear repulsion energy58.514384
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 CCD/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3174 3037 0.00      
2 A1 1499 1434 0.00      
3 A1 1104 1056 0.00      
4 B1 872 834 0.00      
5 B2 3173 3036 2.58      
6 B2 2069 1980 24.56      
7 B2 1439 1376 1.50      
8 E 3267 3126 2.15      
8 E 3267 3126 2.15      
9 E 1027 982 1.15      
9 E 1027 982 1.15      
10 E 866 829 47.69      
10 E 866 829 47.69      
11 E 355 340 3.95      
11 E 355 340 3.95      

Unscaled Zero Point Vibrational Energy (zpe) 12180.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 11652.7 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 CCD/cc-pVDZ
ABC
4.73374 0.29013 0.29013

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/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 1.322
C3 0.000 0.000 -1.322
H4 0.000 0.940 1.887
H5 0.000 -0.940 1.887
H6 0.940 0.000 -1.887
H7 -0.940 0.000 -1.887

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.32251.32252.10772.10772.10772.1077
C21.32252.64501.09611.09613.34383.3438
C31.32252.64503.34383.34381.09611.0961
H42.10771.09613.34381.87984.00044.0004
H52.10771.09613.34381.87984.00044.0004
H62.10773.34381.09614.00044.00041.8798
H72.10773.34381.09614.00044.00041.8798

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 120.969 C1 C2 H5 120.969
C1 C3 H6 120.969 C1 C3 H7 120.969
C2 C1 C3 180.000 H4 C2 H5 118.062
H6 C3 H7 118.062
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability