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All results from a given calculation for C3H4O (allenol)

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-191.406542
Energy at 298.15K-191.410044
HF Energy-190.734322
Nuclear repulsion energy102.139725
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 MP2/6-31G(2df,p)
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' 3850 3636 47.22      
2 A' 3256 3075 2.88      
3 A' 3177 3000 7.64      
4 A' 2072 1957 42.56      
5 A' 1517 1433 45.52      
6 A' 1434 1355 51.30      
7 A' 1312 1240 6.74      
8 A' 1212 1145 116.12      
9 A' 996 941 98.94      
10 A' 931 879 31.67      
11 A' 630 595 18.76      
12 A' 212 201 0.83      
13 A" 3261 3080 2.59      
14 A" 1046 988 1.13      
15 A" 915 864 21.14      
16 A" 645 610 0.70      
17 A" 437 413 109.18      
18 A" 271 256 1.84      

Unscaled Zero Point Vibrational Energy (zpe) 13587.2 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 12833.1 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 MP2/6-31G(2df,p)
ABC
1.45779 0.14564 0.13610

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.663 -0.486 0.000
C2 0.000 0.645 0.000
C3 -0.663 1.773 0.000
O4 0.123 -1.745 0.000
H5 1.745 -0.519 0.000
H6 -0.948 2.266 0.924
H7 -0.948 2.266 -0.924
H8 -0.835 -1.645 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.31032.61931.37031.08263.31983.31981.8943
C21.31031.30892.39282.09752.09342.09342.4372
C32.61931.30893.60513.32461.08551.08553.4229
O41.37032.39283.60512.03324.25324.25320.9632
H51.08262.09753.32462.03323.98313.98312.8150
H63.31982.09341.08554.25323.98311.84844.0204
H73.31982.09341.08554.25323.98311.84844.0204
H81.89432.43723.42290.96322.81504.02044.0204

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.976 C1 O4 H8 107.254
C2 C1 O4 126.399 C2 C1 H5 122.170
C2 C3 H6 121.634 C2 C3 H7 121.634
O4 C1 H5 111.431 H6 C3 H7 116.730
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.027      
2 C 0.108      
3 C -0.460      
4 O -0.532      
5 H 0.174      
6 H 0.167      
7 H 0.167      
8 H 0.348      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.766 0.555 0.000
y 0.555 -24.616 0.000
z 0.000 0.000 -24.318
Traceless
 xyz
x 3.701 0.555 0.000
y 0.555 -2.074 0.000
z 0.000 0.000 -1.627
Polar
3z2-r2-3.254
x2-y23.851
xy0.555
xz0.000
yz0.000


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> 87.536
(<r2>)1/2 9.356