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All results from a given calculation for C3H4O (allenol)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-191.790668
Energy at 298.15K-191.794163
Nuclear repulsion energy101.970179
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3770 3607 29.93      
2 A' 3219 3080 5.89      
3 A' 3126 2991 21.76      
4 A' 2087 1997 35.49      
5 A' 1527 1461 61.38      
6 A' 1437 1375 60.18      
7 A' 1312 1255 6.62      
8 A' 1217 1164 130.03      
9 A' 1010 966 107.03      
10 A' 920 880 41.70      
11 A' 631 604 19.20      
12 A' 217 208 1.09      
13 A" 3193 3055 11.00      
14 A" 1045 1000 0.44      
15 A" 904 865 26.45      
16 A" 634 606 1.11      
17 A" 449 430 127.76      
18 A" 276 264 2.58      

Unscaled Zero Point Vibrational Energy (zpe) 13487.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 12903.1 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 B3PW91/6-31G*
ABC
1.47447 0.14477 0.13548

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.654 -0.492 0.000
C2 0.000 0.645 0.000
C3 -0.644 1.784 0.000
O4 0.114 -1.750 0.000
H5 1.740 -0.533 0.000
H6 -0.927 2.288 0.925
H7 -0.927 2.288 -0.925
H8 -0.852 -1.663 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.31172.62021.36911.08673.32923.32921.9076
C21.31171.30852.39792.10072.10112.10112.4607
C32.62021.30853.61453.32401.09101.09103.4538
O41.36912.39793.61452.03154.27164.27160.9693
H51.08672.10073.32402.03153.99013.99012.8276
H63.32922.10111.09104.27163.99011.85094.0593
H73.32922.10111.09104.27163.99011.85094.0593
H81.90762.46073.45380.96932.82764.05934.0593

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.600 C1 O4 H8 108.106
C2 C1 O4 126.871 C2 C1 H5 122.021
C2 C3 H6 121.978 C2 C3 H7 121.978
O4 C1 H5 111.108 H6 C3 H7 116.043
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.083      
2 C 0.233      
3 C -0.548      
4 O -0.586      
5 H 0.193      
6 H 0.186      
7 H 0.186      
8 H 0.419      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.026 0.696 0.000 1.240
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.637 0.959 0.000
y 0.959 -24.098 0.000
z 0.000 0.000 -24.008
Traceless
 xyz
x 3.416 0.959 0.000
y 0.959 -1.775 0.000
z 0.000 0.000 -1.641
Polar
3z2-r2-3.282
x2-y23.461
xy0.959
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.431 -2.203 0.000
y -2.203 8.247 0.000
z 0.000 0.000 2.892


<r2> (average value of r2) Å2
<r2> 87.724
(<r2>)1/2 9.366