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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: B2PLYP/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 B2PLYP/STO-3G
 hartrees
Energy at 0K-115.003415
Energy at 298.15K-115.006021
HF Energy-114.938642
Nuclear repulsion energy58.696225
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 B2PLYP/STO-3G
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 3407 3407 0.00 132.81 0.07 0.13
2 A1 1636 1636 0.00 37.71 0.70 0.82
3 A1 1170 1170 0.00 29.33 0.37 0.54
4 B1 969 969 0.00 14.42 0.75 0.86
5 B2 3412 3412 41.35 19.17 0.75 0.86
6 B2 2205 2205 0.74 0.13 0.75 0.86
7 B2 1581 1581 0.02 4.24 0.75 0.86
8 E 3546 3546 1.32 60.87 0.75 0.86
8 E 3546 3546 1.32 60.87 0.75 0.86
9 E 1116 1116 0.15 0.21 0.75 0.86
9 E 1116 1116 0.15 0.21 0.75 0.86
10 E 942 942 28.94 0.01 0.75 0.86
10 E 942 942 28.94 0.01 0.75 0.86
11 E 367 367 0.64 1.79 0.75 0.86
11 E 367 367 0.64 1.79 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13160.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13160.3 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 B2PLYP/STO-3G
ABC
4.80643 0.29206 0.29206

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/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 1.315
C3 0.000 0.000 -1.315
H4 0.000 0.933 1.894
H5 0.000 -0.933 1.894
H6 0.933 0.000 -1.894
H7 -0.933 0.000 -1.894

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.31511.31512.11122.11122.11122.1112
C21.31512.63011.09781.09783.34183.3418
C31.31512.63013.34183.34181.09781.0978
H42.11121.09783.34181.86554.01104.0110
H52.11121.09783.34181.86554.01104.0110
H62.11123.34181.09784.01104.01101.8655
H72.11123.34181.09784.01104.01101.8655

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.824 C1 C2 H5 121.824
C1 C3 H6 121.824 C1 C3 H7 121.824
C2 C1 C3 180.000 H4 C2 H5 116.353
H6 C3 H7 116.353
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.009      
2 C -0.175      
3 C -0.175      
4 H 0.085      
5 H 0.085      
6 H 0.085      
7 H 0.085      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.459 0.000 0.000
y 0.000 -17.448 0.000
z 0.000 0.000 -15.285
Traceless
 xyz
x -1.092 0.000 0.000
y 0.000 -1.076 0.000
z 0.000 0.000 2.168
Polar
3z2-r24.336
x2-y2-0.011
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.153 0.000 0.000
y 0.000 1.153 0.000
z 0.000 0.000 5.492


<r2> (average value of r2) Å2
<r2> 49.030
(<r2>)1/2 7.002