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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: MP2=FULL/STO-3G

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=FULL/STO-3G
 hartrees
Energy at 0K-114.606527
Energy at 298.15K-114.609120
HF Energy-114.416887
Nuclear repulsion energy58.426305
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=FULL/STO-3G
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 3431 3050 0.00 103.22 0.05 0.10
2 A1 1648 1465 0.00 45.61 0.66 0.80
3 A1 1153 1025 0.00 10.03 0.39 0.56
4 B1 988 878 0.00 14.19 0.75 0.86
5 B2 3440 3058 21.82 18.59 0.75 0.86
6 B2 2174 1933 1.81 0.14 0.75 0.86
7 B2 1598 1421 0.94 4.25 0.75 0.86
8 E 3576 3179 0.50 51.60 0.75 0.86
8 E 3576 3179 0.50 51.60 0.75 0.86
9 E 1129 1004 0.01 0.05 0.75 0.86
9 E 1129 1004 0.01 0.05 0.75 0.86
10 E 942 837 22.31 0.11 0.75 0.86
10 E 942 837 22.31 0.11 0.75 0.86
11 E 358 318 0.47 1.46 0.75 0.86
11 E 358 318 0.47 1.46 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13221.1 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 11752.2 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=FULL/STO-3G
ABC
4.77423 0.28915 0.28915

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

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 1.322
C3 0.000 0.000 -1.322
H4 0.000 0.936 1.901
H5 0.000 -0.936 1.901
H6 0.936 0.000 -1.901
H7 -0.936 0.000 -1.901

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.32231.32232.11902.11902.11902.1190
C21.32232.64471.10041.10043.35663.3566
C31.32232.64473.35663.35661.10041.1004
H42.11901.10043.35661.87184.02614.0261
H52.11901.10043.35661.87184.02614.0261
H62.11903.35661.10044.02614.02611.8718
H72.11903.35661.10044.02614.02611.8718

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.736 C1 C2 H5 121.736
C1 C3 H6 121.736 C1 C3 H7 121.736
C2 C1 C3 180.000 H4 C2 H5 116.529
H6 C3 H7 116.529
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability