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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: CCD/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-116.356068
Energy at 298.15K 
HF Energy-115.876348
Nuclear repulsion energy59.241145
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/6-31G(2df,p)
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 3199 3030 0.00      
2 A1 1515 1435 0.00      
3 A1 1116 1057 0.00      
4 B1 895 847 0.00      
5 B2 3198 3029 0.54      
6 B2 2095 1985 26.79      
7 B2 1457 1380 1.87      
8 E 3283 3110 0.99      
8 E 3283 3110 0.99      
9 E 1042 987 0.62      
9 E 1042 987 0.62      
10 E 895 848 47.21      
10 E 895 848 47.21      
11 E 375 355 3.72      
11 E 375 355 3.72      

Unscaled Zero Point Vibrational Energy (zpe) 12332.5 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 11681.4 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/6-31G(2df,p)
ABC
4.87039 0.29732 0.29732

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G(2df,p)

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 1.306
C3 0.000 0.000 -1.306
H4 0.000 0.927 1.867
H5 0.000 -0.927 1.867
H6 0.927 0.000 -1.867
H7 -0.927 0.000 -1.867

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.30571.30572.08412.08412.08412.0841
C21.30572.61151.08321.08323.30513.3051
C31.30572.61153.30513.30511.08321.0832
H42.08411.08323.30511.85323.95693.9569
H52.08411.08323.30511.85323.95693.9569
H62.08413.30511.08323.95693.95691.8532
H72.08413.30511.08323.95693.95691.8532

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.196 C1 C2 H5 121.196
C1 C3 H6 121.196 C1 C3 H7 121.196
C2 C1 C3 180.000 H4 C2 H5 117.608
H6 C3 H7 117.608
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability