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All results from a given calculation for C3H4O (allenol)

using model chemistry: HF/CEP-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 HF/CEP-31G*
 hartrees
Energy at 0K-34.388820
Energy at 298.15K-34.392365
Nuclear repulsion energy54.720122
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 HF/CEP-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 A' 4148 3725 60.61      
2 A' 3420 3071 10.89      
3 A' 3319 2980 25.80      
4 A' 2240 2011 39.04      
5 A' 1628 1462 104.72      
6 A' 1526 1370 96.11      
7 A' 1364 1225 17.92      
8 A' 1286 1155 149.90      
9 A' 1079 969 155.86      
10 A' 1013 909 41.17      
11 A' 652 586 34.02      
12 A' 224 201 0.30      
13 A" 3398 3052 18.06      
14 A" 1094 982 6.84      
15 A" 989 888 23.44      
16 A" 670 601 2.74      
17 A" 392 352 167.90      
18 A" 270 242 8.18      

Unscaled Zero Point Vibrational Energy (zpe) 14354.6 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 12890.4 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 HF/CEP-31G*
ABC
1.44972 0.14304 0.13378

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.668 -0.504 0.000
C2 0.000 0.644 0.000
C3 -0.658 1.802 0.000
O4 0.112 -1.753 0.000
H5 1.746 -0.535 0.000
H6 -0.931 2.291 0.928
H7 -0.931 2.291 -0.928
H8 -0.836 -1.676 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.32852.66011.36681.07843.35153.35151.9063
C21.32851.33172.39982.10652.10732.10732.4661
C32.66011.33173.63753.35231.08381.08383.4824
O41.36682.39983.63752.03794.27854.27850.9514
H51.07842.10653.35232.03794.00164.00162.8228
H63.35152.10731.08384.27854.00161.85544.0752
H73.35152.10731.08384.27854.00161.85544.0752
H81.90632.46613.48240.95142.82284.07524.0752

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.431 C1 O4 H8 109.331
C2 C1 O4 125.840 C2 C1 H5 121.790
C2 C3 H6 121.136 C2 C3 H7 121.136
O4 C1 H5 112.370 H6 C3 H7 117.727
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.020      
2 C -0.213      
3 C -0.299      
4 O -0.494      
5 H 0.223      
6 H 0.186      
7 H 0.186      
8 H 0.431      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.030 0.993 0.000 1.431
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.071 0.678 0.000
y 0.678 -25.163 0.000
z 0.000 0.000 -24.761
Traceless
 xyz
x 3.891 0.678 0.000
y 0.678 -2.247 0.000
z 0.000 0.000 -1.644
Polar
3z2-r2-3.288
x2-y24.092
xy0.678
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.651 -2.599 0.000
y -2.599 8.466 0.000
z 0.000 0.000 2.819


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000