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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: CCSD(T)=FULL/TZVP

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/TZVP
 hartrees
Energy at 0K-116.418300
Energy at 298.15K 
HF Energy-115.901404
Nuclear repulsion energy59.002033
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/TZVP
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 1084 1036        
2 B1 875 837        
3 B2 2015 1926        
4 E 3238 3096        
5 E 3238 3096        
6 E 3155 3016        
7 E 3153 3015        
8 E 1503 1437        
8 E 1457 1393        
9 E 1020 975        
9 E 1020 975        
10 E 825 789        
10 E 825 789        
11 E 332 318        
11 E 331 317        

Unscaled Zero Point Vibrational Energy (zpe) 12036.4 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 11506.8 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/TZVP
ABC
4.85182 0.29451 0.29451

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/TZVP

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 1.313
C3 0.000 0.000 -1.313
H4 0.000 0.928 1.872
H5 0.000 -0.928 1.872
H6 0.928 0.000 -1.872
H7 -0.928 0.000 -1.872

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.31291.31292.08992.08992.08992.0899
C21.31292.62581.08391.08393.31783.3178
C31.31292.62583.31783.31781.08391.0839
H42.08991.08393.31781.85683.96833.9683
H52.08991.08393.31781.85683.96833.9683
H62.08993.31781.08393.96833.96831.8568
H72.08993.31781.08393.96833.96831.8568

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.077 C1 C2 H5 121.077
C1 C3 H6 121.077 C1 C3 H7 121.077
C2 C1 C3 180.000 H4 C2 H5 117.847
H6 C3 H7 117.847
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability