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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: MP2/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at MP2/6-311+G(3df,2p)
 hartrees
Energy at 0K-116.377375
Energy at 298.15K-116.380073
HF Energy-115.903352
Nuclear repulsion energy59.205938
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 MP2/6-311+G(3df,2p)
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 3174 2994 0.00 320.75 0.07 0.12
2 A1 1483 1399 0.00 18.34 0.75 0.86
3 A1 1093 1031 0.00 42.87 0.14 0.24
4 B1 893 843 0.00 0.34 0.75 0.86
5 B2 3174 2994 0.11 30.87 0.75 0.86
6 B2 2033 1918 53.15 3.97 0.75 0.86
7 B2 1432 1351 3.31 0.26 0.75 0.86
8 E 3267 3082 0.00 84.31 0.75 0.86
8 E 3267 3082 0.00 84.31 0.75 0.86
9 E 1014 957 2.09 0.01 0.75 0.86
9 E 1014 957 2.09 0.01 0.75 0.86
10 E 858 810 53.95 2.34 0.75 0.86
10 E 858 810 53.95 2.34 0.75 0.86
11 E 361 341 7.04 0.45 0.75 0.86
11 E 361 341 7.04 0.45 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12141.8 cm-1
Scaled (by 0.9434) Zero Point Vibrational Energy (zpe) 11454.6 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 MP2/6-311+G(3df,2p)
ABC
4.84640 0.29690 0.29690

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2p)

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 1.308
C3 0.000 0.000 -1.308
H4 0.000 0.929 1.862
H5 0.000 -0.929 1.862
H6 0.929 0.000 -1.862
H7 -0.929 0.000 -1.862

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.30801.30802.08102.08102.08102.0810
C21.30802.61601.08171.08173.30353.3035
C31.30802.61603.30353.30351.08171.0817
H42.08101.08173.30351.85783.94933.9493
H52.08101.08173.30351.85783.94933.9493
H62.08103.30351.08173.94933.94931.8578
H72.08103.30351.08173.94933.94931.8578

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 120.821 C1 C2 H5 120.821
C1 C3 H6 120.821 C1 C3 H7 120.821
C2 C1 C3 180.000 H4 C2 H5 118.357
H6 C3 H7 118.357
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability