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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: wB97X-D/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at wB97X-D/3-21G
 hartrees
Energy at 0K-115.973736
Energy at 298.15K-115.976516
HF Energy-115.973736
Nuclear repulsion energy59.307463
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 wB97X-D/3-21G
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 3173 3173 0.00 253.16 0.05 0.10
2 A1 1538 1538 0.00 26.49 0.64 0.78
3 A1 1138 1138 0.00 47.75 0.33 0.50
4 B1 907 907 0.00 27.82 0.75 0.86
5 B2 3172 3172 0.02 41.88 0.75 0.86
6 B2 2110 2110 57.95 0.40 0.75 0.86
7 B2 1490 1490 7.55 0.61 0.75 0.86
8 E 3251 3251 1.27 98.40 0.75 0.86
8 E 3251 3251 1.27 98.40 0.75 0.86
9 E 1079 1079 2.35 1.17 0.75 0.86
9 E 1079 1079 2.35 1.17 0.75 0.86
10 E 934 934 85.70 0.13 0.75 0.86
10 E 934 934 85.70 0.13 0.75 0.86
11 E 370 370 6.86 3.89 0.75 0.86
11 E 370 370 6.86 3.89 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12396.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12396.6 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 wB97X-D/3-21G
ABC
4.86137 0.29838 0.29838

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G

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 1.302
C3 0.000 0.000 -1.302
H4 0.000 0.927 1.867
H5 0.000 -0.927 1.867
H6 0.927 0.000 -1.867
H7 -0.927 0.000 -1.867

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.30251.30252.08462.08462.08462.0846
C21.30252.60491.08571.08573.30233.3023
C31.30252.60493.30233.30231.08571.0857
H42.08461.08573.30231.85493.95753.9575
H52.08461.08573.30231.85493.95753.9575
H62.08463.30231.08573.95753.95751.8549
H72.08463.30231.08573.95753.95751.8549

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.324 C1 C2 H5 121.324
C1 C3 H6 121.324 C1 C3 H7 121.324
C2 C1 C3 180.000 H4 C2 H5 117.352
H6 C3 H7 117.352
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.117      
2 C -0.537      
3 C -0.537      
4 H 0.239      
5 H 0.239      
6 H 0.239      
7 H 0.239      


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 -19.151 0.000 0.000
y 0.000 -19.151 0.000
z 0.000 0.000 -14.858
Traceless
 xyz
x -2.147 0.000 0.000
y 0.000 -2.147 0.000
z 0.000 0.000 4.293
Polar
3z2-r28.586
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.184 0.000 0.000
y 0.000 2.184 0.000
z 0.000 0.000 8.023


<r2> (average value of r2) Å2
<r2> 48.806
(<r2>)1/2 6.986