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All results from a given calculation for C3H4O (allenol)

using model chemistry: MP2=FULL/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 MP2=FULL/3-21G*
 hartrees
Energy at 0K-190.039033
Energy at 298.15K-190.042414
HF Energy-189.647931
Nuclear repulsion energy100.499560
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=FULL/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' 3514 3332 12.68      
2 A' 3247 3078 4.58      
3 A' 3145 2982 10.89      
4 A' 2033 1927 23.95      
5 A' 1572 1490 4.21      
6 A' 1446 1371 40.79      
7 A' 1336 1266 6.38      
8 A' 1190 1128 88.09      
9 A' 983 931 54.85      
10 A' 936 887 118.72      
11 A' 615 583 22.12      
12 A' 186 176 0.51      
13 A" 3214 3047 9.16      
14 A" 1119 1060 0.08      
15 A" 961 911 30.62      
16 A" 644 611 0.09      
17 A" 422 400 164.38      
18 A" 220 208 5.31      

Unscaled Zero Point Vibrational Energy (zpe) 13390.3 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 12694.1 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=FULL/3-21G*
ABC
1.40670 0.14111 0.13168

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.677 -0.463 0.000
C2 0.000 0.667 0.000
C3 -0.699 1.783 0.000
O4 0.152 -1.782 0.000
H5 1.759 -0.499 0.000
H6 -1.001 2.277 0.922
H7 -1.001 2.277 -0.922
H8 -0.840 -1.724 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.31672.63411.41971.08273.34243.34241.9727
C21.31671.31762.45332.11042.10842.10842.5338
C32.63411.31763.66553.35481.08861.08863.5099
O41.41972.45333.66552.05594.31924.31920.9938
H51.08272.11043.35482.05594.02194.02192.8730
H63.34242.10841.08864.31924.02191.84444.1091
H73.34242.10841.08864.31924.02191.84444.1091
H81.97272.53383.50990.99382.87304.10914.1091

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 178.873 C1 O4 H8 108.342
C2 C1 O4 127.372 C2 C1 H5 122.880
C2 C3 H6 122.097 C2 C3 H7 122.097
O4 C1 H5 109.747 H6 C3 H7 115.801
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2=FULL/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.079      
2 C -0.143      
3 C -0.410      
4 O -0.651      
5 H 0.263      
6 H 0.236      
7 H 0.236      
8 H 0.392      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.961 0.785 0.000
y 0.785 -25.499 0.000
z 0.000 0.000 -24.820
Traceless
 xyz
x 4.198 0.785 0.000
y 0.785 -2.608 0.000
z 0.000 0.000 -1.590
Polar
3z2-r2-3.181
x2-y24.538
xy0.785
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> 0.000
(<r2>)1/2 0.000