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All results from a given calculation for C3H4O (allenol)

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G4
 hartrees
Energy at 0K-191.771449
Energy at 298.15K-191.765878
HF Energy-191.888293
Nuclear repulsion energy102.199985
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 B3LYP/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3804 3670 31.40      
2 A' 3186 3074 4.94      
3 A' 3100 2992 19.15      
4 A' 2076 2004 33.71      
5 A' 1510 1457 52.37      
6 A' 1423 1373 56.74      
7 A' 1297 1251 5.62      
8 A' 1204 1161 116.14      
9 A' 994 959 107.73      
10 A' 926 894 31.51      
11 A' 630 608 17.13      
12 A' 216 209 1.01      
13 A" 3164 3053 8.87      
14 A" 1039 1002 1.23      
15 A" 904 873 20.89      
16 A" 636 614 0.73      
17 A" 437 422 104.05      
18 A" 276 266 1.55      

Unscaled Zero Point Vibrational Energy (zpe) 13410.7 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 12941.3 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 B3LYP/6-31G(2df,p)
ABC
1.46772 0.14573 0.13625

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.657 -0.484 0.000
C2 0.000 0.645 0.000
C3 -0.653 1.773 0.000
O4 0.120 -1.746 0.000
H5 1.742 -0.521 0.000
H6 -0.941 2.274 0.923
H7 -0.941 2.274 -0.923
H8 -0.841 -1.665 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.30632.60961.37131.08513.31873.31871.9081
C21.30631.30342.39372.09592.09572.09572.4588
C32.60961.30343.60243.31621.08911.08913.4434
O41.37132.39373.60242.03224.25894.25890.9644
H51.08512.09593.31622.03223.98273.98272.8250
H63.31872.09571.08914.25893.98271.84584.0478
H73.31872.09571.08914.25893.98271.84584.0478
H81.90812.45883.44340.96442.82504.04784.0478

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.645 C1 O4 H8 108.720
C2 C1 O4 126.991 C2 C1 H5 121.833
C2 C3 H6 121.918 C2 C3 H7 121.918
O4 C1 H5 111.176 H6 C3 H7 116.161
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.105      
2 C 0.257      
3 C -0.475      
4 O -0.374      
5 H 0.135      
6 H 0.131      
7 H 0.131      
8 H 0.300      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.930 0.590 0.000 1.101
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 87.349
(<r2>)1/2 9.346