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All results from a given calculation for C3H4O (allenol)

using model chemistry: CCD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/3-21G*
 hartrees
Energy at 0K-190.059307
Energy at 298.15K-190.062649
HF Energy-189.647794
Nuclear repulsion energy100.430342
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 CCD/3-21G*
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' 3537 3383 4.43      
2 A' 3203 3064 5.81      
3 A' 3107 2972 10.66      
4 A' 2044 1955 17.36      
5 A' 1558 1490 7.31      
6 A' 1447 1384 42.06      
7 A' 1342 1283 7.06      
8 A' 1189 1138 66.05      
9 A' 966 924 54.71      
10 A' 937 896 106.58      
11 A' 607 581 22.95      
12 A' 186 178 0.44      
13 A" 3171 3033 10.28      
14 A" 1106 1058 0.13      
15 A" 938 897 25.72      
16 A" 627 600 0.32      
17 A" 382 366 168.59      
18 A" 235 224 4.92      

Unscaled Zero Point Vibrational Energy (zpe) 13291.2 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 12713.0 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 CCD/3-21G*
ABC
1.40263 0.14099 0.13156

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.677 -0.465 0.000
C2 0.000 0.665 0.000
C3 -0.694 1.787 0.000
O4 0.146 -1.782 0.000
H5 1.762 -0.502 0.000
H6 -0.993 2.283 0.925
H7 -0.993 2.283 -0.925
H8 -0.844 -1.727 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.31742.63651.42001.08593.34613.34611.9762
C21.31741.31912.45172.11342.11172.11172.5368
C32.63651.31913.66683.35691.09161.09163.5176
O41.42002.45173.66682.06214.32194.32190.9913
H51.08592.11343.35692.06214.02504.02502.8798
H63.34612.11171.09164.32194.02501.85054.1182
H73.34612.11171.09164.32194.02501.85054.1182
H81.97622.53683.51760.99132.87984.11824.1182

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.196 C1 O4 H8 108.774
C2 C1 O4 127.132 C2 C1 H5 122.834
C2 C3 H6 122.043 C2 C3 H7 122.043
O4 C1 H5 110.034 H6 C3 H7 115.910
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at CCD/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.081      
2 C -0.144      
3 C -0.410      
4 O -0.653      
5 H 0.263      
6 H 0.235      
7 H 0.235      
8 H 0.393      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.319 1.119 -0.002
y 1.119 -25.424 -0.004
z -0.002 -0.004 -24.710
Traceless
 xyz
x 3.748 1.119 -0.002
y 1.119 -2.410 -0.004
z -0.002 -0.004 -1.339
Polar
3z2-r2-2.677
x2-y24.105
xy1.119
xz-0.002
yz-0.004


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> 0.000
(<r2>)1/2 0.000