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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: CID/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 CID/6-31G*
 hartrees
Energy at 0K-116.219795
Energy at 298.15K 
HF Energy-115.860707
Nuclear repulsion energy59.269011
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 CID/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3250 3002 0.00      
2 A1 1563 1444 0.00      
3 A1 1153 1065 0.00      
4 B1 916 846 0.00      
5 B2 3247 2999 2.51      
6 B2 2143 1979 40.96      
7 B2 1503 1389 1.44      
8 E 3328 3074 3.43      
8 E 3328 3074 3.43      
9 E 1075 993 0.11      
9 E 1075 993 0.11      
10 E 923 853 59.84      
10 E 923 853 59.84      
11 E 384 355 3.85      
11 E 384 355 3.85      

Unscaled Zero Point Vibrational Energy (zpe) 12597.6 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 11636.4 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 CID/6-31G*
ABC
4.89127 0.29750 0.29750

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/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 1.305
C3 0.000 0.000 -1.305
H4 0.000 0.925 1.868
H5 0.000 -0.925 1.868
H6 0.925 0.000 -1.868
H7 -0.925 0.000 -1.868

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.30501.30502.08442.08442.08442.0844
C21.30502.61001.08261.08263.30513.3051
C31.30502.61003.30513.30511.08261.0826
H42.08441.08263.30511.84923.95853.9585
H52.08441.08263.30511.84923.95853.9585
H62.08443.30511.08263.95853.95851.8492
H72.08443.30511.08263.95853.95851.8492

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.345 C1 C2 H5 121.345
C1 C3 H6 121.345 C1 C3 H7 121.345
C2 C1 C3 180.000 H4 C2 H5 117.311
H6 C3 H7 117.311
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability