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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: CCSD/6-31G**

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/6-31G**
 hartrees
Energy at 0K-116.298866
Energy at 298.15K 
HF Energy-115.867458
Nuclear repulsion energy58.979376
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/6-31G**
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 3218 3001 0.00      
2 A1 1542 1438 0.00      
3 A1 1113 1038 0.00      
4 B1 892 832 0.00      
5 B2 3217 3000 5.91      
6 B2 2076 1936 25.13      
7 B2 1487 1386 0.34      
8 E 3304 3082 4.92      
8 E 3304 3082 4.92      
9 E 1054 983 0.71      
9 E 1054 983 0.71      
10 E 883 824 48.23      
10 E 883 824 48.23      
11 E 357 333 3.00      
11 E 357 333 3.00      

Unscaled Zero Point Vibrational Energy (zpe) 12370.4 cm-1
Scaled (by 0.9326) Zero Point Vibrational Energy (zpe) 11536.7 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/6-31G**
ABC
4.88552 0.29392 0.29392

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G**

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 0.925 1.875
H5 0.000 -0.925 1.875
H6 0.925 0.000 -1.875
H7 -0.925 0.000 -1.875

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.31421.31422.09112.09112.09112.0911
C21.31422.62841.08201.08203.32103.3210
C31.31422.62843.32103.32101.08201.0820
H42.09111.08203.32101.85033.97223.9722
H52.09111.08203.32101.85033.97223.9722
H62.09113.32101.08203.97223.97221.8503
H72.09113.32101.08203.97223.97221.8503

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.234 C1 C2 H5 121.234
C1 C3 H6 121.234 C1 C3 H7 121.234
C2 C1 C3 180.000 H4 C2 H5 117.532
H6 C3 H7 117.532
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability