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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: CCSD(T)=FULL/aug-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(T)=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-116.497928
Energy at 298.15K 
HF Energy-115.906714
Nuclear repulsion energy59.209437
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)=FULL/aug-cc-pVTZ
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 1091 1051        
2 B1 884 852        
3 B2 2023 1950        
4 E 3219 3102        
5 E 3219 3102        
6 E 3157 3042        
7 E 3156 3042        
8 E 1494 1440        
8 E 1443 1391        
9 E 1036 999        
9 E 1036 999        
10 E 882 850        
10 E 882 850        
11 E 362 349        
11 E 360 347        

Unscaled Zero Point Vibrational Energy (zpe) 12122.1 cm-1
Scaled (by 0.9637) Zero Point Vibrational Energy (zpe) 11682.0 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)=FULL/aug-cc-pVTZ
ABC
4.86267 0.29679 0.29679

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/aug-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 0.927 1.863
H5 0.000 -0.927 1.863
H6 0.927 0.000 -1.863
H7 -0.927 0.000 -1.863

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.30821.30822.08112.08112.08112.0811
C21.30822.61651.08061.08063.30403.3040
C31.30822.61653.30403.30401.08061.0806
H42.08111.08063.30401.85473.95013.9501
H52.08111.08063.30401.85473.95013.9501
H62.08113.30401.08063.95013.95011.8547
H72.08113.30401.08063.95013.95011.8547

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 120.890 C1 C2 H5 120.890
C1 C3 H6 120.890 C1 C3 H7 120.890
C2 C1 C3 180.000 H4 C2 H5 118.219
H6 C3 H7 118.219
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability