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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: QCISD(T)/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 QCISD(T)/aug-cc-pVTZ
 hartrees
Energy at 0K-116.441616
Energy at 298.15K 
HF Energy-115.905960
Nuclear repulsion energy58.967468
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 QCISD(T)/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 1077 1042        
2 B1 867 839        
3 B2 2004 1937        
4 E 3220 3113        
5 E 3220 3113        
6 E 3137 3033        
7 E 3136 3032        
8 E 1481 1431        
8 E 1430 1383        
9 E 1014 980        
9 E 1014 980        
10 E 852 824        
10 E 852 824        
11 E 344 332        
11 E 342 331        

Unscaled Zero Point Vibrational Energy (zpe) 11995.4 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 11597.1 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 QCISD(T)/aug-cc-pVTZ
ABC
4.83306 0.29423 0.29423

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/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 1.314
C3 0.000 0.000 -1.314
H4 0.000 0.930 1.871
H5 0.000 -0.930 1.871
H6 0.930 0.000 -1.871
H7 -0.930 0.000 -1.871

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.31411.31412.08922.08922.08922.0892
C21.31412.62821.08401.08403.31783.3178
C31.31412.62823.31783.31781.08401.0840
H42.08921.08403.31781.86043.96593.9659
H52.08921.08403.31781.86043.96593.9659
H62.08923.31781.08403.96593.96591.8604
H72.08923.31781.08403.96593.96591.8604

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 120.895 C1 C2 H5 120.895
C1 C3 H6 120.895 C1 C3 H7 120.895
C2 C1 C3 180.000 H4 C2 H5 118.210
H6 C3 H7 118.210
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability