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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: QCISD(T)=FULL/6-31+G**

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)=FULL/6-31+G**
 hartrees
Energy at 0K-116.339221
Energy at 298.15K 
HF Energy-115.872625
Nuclear repulsion energy58.773151
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)=FULL/6-31+G**
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 1087 1087        
2 B1 875 875        
3 B2 2020 2020        
4 E 3283 3283        
5 E 3282 3282        
6 E 3195 3195        
7 E 3193 3193        
8 E 1520 1520        
8 E 1472 1472        
9 E 1038 1038        
9 E 1037 1037        
10 E 853 853        
10 E 853 853        
11 E 336 336        
11 E 334 334        

Unscaled Zero Point Vibrational Energy (zpe) 12188.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12188.3 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)=FULL/6-31+G**
ABC
4.86534 0.29160 0.29160

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/6-31+G**

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 1.320
C3 0.000 0.000 -1.320
H4 0.000 0.927 1.880
H5 0.000 -0.927 1.880
H6 0.927 0.000 -1.880
H7 -0.927 0.000 -1.880

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.32021.32022.09622.09622.09622.0962
C21.32022.64041.08301.08303.33183.3318
C31.32022.64043.33183.33181.08301.0830
H42.09621.08303.33181.85423.98223.9822
H52.09621.08303.33181.85423.98223.9822
H62.09623.33181.08303.98223.98221.8542
H72.09623.33181.08303.98223.98221.8542

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.129 C1 C2 H5 121.129
C1 C3 H6 121.129 C1 C3 H7 121.129
C2 C1 C3 180.000 H4 C2 H5 117.742
H6 C3 H7 117.742
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability