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All results from a given calculation for CH2CCH2 (allene)

using model chemistry: mPW1PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at mPW1PW91/6-31G**
 hartrees
Energy at 0K-116.627863
Energy at 298.15K-116.630606
HF Energy-116.627863
Nuclear repulsion energy59.251996
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 mPW1PW91/6-31G**
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 3176 3022 0.00 295.00 0.05 0.10
2 A1 1499 1426 0.00 20.11 0.65 0.79
3 A1 1129 1074 0.00 53.91 0.32 0.48
4 B1 891 848 0.00 19.96 0.75 0.86
5 B2 3172 3019 1.67 47.90 0.75 0.86
6 B2 2098 1996 62.91 0.06 0.75 0.86
7 B2 1435 1366 3.30 0.32 0.75 0.86
8 E 3256 3098 1.70 104.16 0.75 0.86
8 E 3256 3098 1.70 104.16 0.75 0.86
9 E 1022 973 0.01 0.34 0.75 0.86
9 E 1022 973 0.01 0.34 0.75 0.86
10 E 870 828 61.59 0.06 0.75 0.86
10 E 870 828 61.59 0.06 0.75 0.86
11 E 383 364 3.90 3.03 0.75 0.86
11 E 383 364 3.90 3.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12230.5 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 11637.3 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 mPW1PW91/6-31G**
ABC
4.85744 0.29770 0.29770

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G**

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 1.304
C3 0.000 0.000 -1.304
H4 0.000 0.928 1.868
H5 0.000 -0.928 1.868
H6 0.928 0.000 -1.868
H7 -0.928 0.000 -1.868

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.30421.30422.08562.08562.08562.0856
C21.30422.60851.08561.08563.30503.3050
C31.30422.60853.30503.30501.08561.0856
H42.08561.08563.30501.85573.95953.9595
H52.08561.08563.30501.85573.95953.9595
H62.08563.30501.08563.95953.95951.8557
H72.08563.30501.08563.95953.95951.8557

picture of allene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 121.276 C1 C2 H5 121.276
C1 C3 H6 121.276 C1 C3 H7 121.276
C2 C1 C3 180.000 H4 C2 H5 117.447
H6 C3 H7 117.447
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.285      
2 C -0.454      
3 C -0.454      
4 H 0.156      
5 H 0.156      
6 H 0.156      
7 H 0.156      


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 -18.779 0.000 0.000
y 0.000 -18.779 0.000
z 0.000 0.000 -15.176
Traceless
 xyz
x -1.801 0.000 0.000
y 0.000 -1.801 0.000
z 0.000 0.000 3.603
Polar
3z2-r27.205
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 2.615 0.000 0.000
y 0.000 2.615 0.000
z 0.000 0.000 8.421


<r2> (average value of r2) Å2
<r2> 48.791
(<r2>)1/2 6.985