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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: mPW1PW91/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at mPW1PW91/aug-cc-pVTZ
 hartrees
Energy at 0K-116.667463
Energy at 298.15K-116.670208
HF Energy-116.667463
Nuclear repulsion energy59.499061
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 mPW1PW91/aug-cc-pVTZ
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 3151 3019 0.00 356.00 0.07 0.13
2 A1 1482 1420 0.00 14.55 0.75 0.86
3 A1 1119 1072 0.00 70.61 0.16 0.27
4 B1 887 850 0.00 0.74 0.75 0.86
5 B2 3147 3016 0.72 33.87 0.75 0.86
6 B2 2068 1981 95.95 4.47 0.75 0.86
7 B2 1421 1361 5.04 0.36 0.75 0.86
8 E 3227 3092 0.25 99.47 0.75 0.86
8 E 3227 3092 0.25 99.47 0.75 0.86
9 E 1014 971 1.13 0.20 0.75 0.86
9 E 1014 971 1.13 0.20 0.75 0.86
10 E 875 838 56.90 2.24 0.75 0.86
10 E 875 838 56.90 2.24 0.75 0.86
11 E 376 361 7.76 0.59 0.75 0.86
11 E 376 361 7.76 0.59 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12129.3 cm-1
Scaled (by 0.9581) Zero Point Vibrational Energy (zpe) 11621.1 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 mPW1PW91/aug-cc-pVTZ
ABC
4.86825 0.30049 0.30049

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVTZ

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 1.298
C3 0.000 0.000 -1.298
H4 0.000 0.927 1.858
H5 0.000 -0.927 1.858
H6 0.927 0.000 -1.858
H7 -0.927 0.000 -1.858

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.29821.29822.07652.07652.07652.0765
C21.29822.59641.08291.08293.28973.2897
C31.29822.59643.28973.28971.08291.0829
H42.07651.08293.28971.85363.94083.9408
H52.07651.08293.28971.85363.94083.9408
H62.07653.28971.08293.94083.94081.8536
H72.07653.28971.08293.94083.94081.8536

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.142 C1 C2 H5 121.142
C1 C3 H6 121.142 C1 C3 H7 121.142
C2 C1 C3 180.000 H4 C2 H5 117.716
H6 C3 H7 117.716
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.666      
2 C -0.854      
3 C -0.854      
4 H 0.260      
5 H 0.260      
6 H 0.260      
7 H 0.260      


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 -19.400 0.000 0.000
y 0.000 -19.400 0.000
z 0.000 0.000 -15.519
Traceless
 xyz
x -1.940 0.000 0.000
y 0.000 -1.940 0.000
z 0.000 0.000 3.880
Polar
3z2-r27.761
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 4.361 0.000 0.000
y 0.000 4.361 0.000
z 0.000 0.000 9.291


<r2> (average value of r2) Å2
<r2> 48.781
(<r2>)1/2 6.984