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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: CCSD(T)/daug-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 CCSD(T)/daug-cc-pVDZ
 hartrees
Energy at 0K-116.336814
Energy at 298.15K 
HF Energy-115.874260
Nuclear repulsion energy58.217056
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(T)/daug-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 1068 1068        
2 B1 849 849        
3 B2 1985 1985        
4 E 3224 3224        
5 E 3224 3224        
6 E 3131 3131        
7 E 3130 3130        
8 E 1465 1465        
8 E 1418 1418        
9 E 994 994        
9 E 994 994        
10 E 853 853        
10 E 853 853        
11 E 315 315        
11 E 314 314        

Unscaled Zero Point Vibrational Energy (zpe) 11908.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11908.4 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 CCSD(T)/daug-cc-pVDZ
ABC
4.72924 0.28651 0.28651

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/daug-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 1.332
C3 0.000 0.000 -1.332
H4 0.000 0.940 1.895
H5 0.000 -0.940 1.895
H6 0.940 0.000 -1.895
H7 -0.940 0.000 -1.895

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.33201.33202.11552.11552.11552.1155
C21.33202.66391.09601.09603.36123.3612
C31.33202.66393.36123.36121.09601.0960
H42.11551.09603.36121.88074.01654.0165
H52.11551.09603.36121.88074.01654.0165
H62.11553.36121.09604.01654.01651.8807
H72.11553.36121.09604.01654.01651.8807

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 120.912 C1 C2 H5 120.912
C1 C3 H6 120.912 C1 C3 H7 120.912
C2 C1 C3 180.000 H4 C2 H5 118.177
H6 C3 H7 118.177
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability