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All results from a given calculation for C3H4O (allenol)

using model chemistry: MP2=FULL/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=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-191.436179
Energy at 298.15K-191.439699
HF Energy-190.734814
Nuclear repulsion energy102.387484
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/6-31G(2df,p)
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' 3855 3623 47.66      
2 A' 3262 3066 2.96      
3 A' 3186 2995 7.73      
4 A' 2085 1960 42.64      
5 A' 1522 1431 46.39      
6 A' 1438 1351 52.63      
7 A' 1318 1239 8.06      
8 A' 1218 1145 115.44      
9 A' 998 938 97.26      
10 A' 930 874 32.31      
11 A' 632 594 19.26      
12 A' 213 200 0.90      
13 A" 3271 3074 2.54      
14 A" 1050 987 0.99      
15 A" 920 865 20.91      
16 A" 651 612 0.91      
17 A" 442 416 109.82      
18 A" 275 259 1.70      

Unscaled Zero Point Vibrational Energy (zpe) 13633.6 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 12814.2 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/6-31G(2df,p)
ABC
1.47124 0.14622 0.13670

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.658 -0.485 0.000
C2 0.000 0.643 0.000
C3 -0.658 1.770 0.000
O4 0.123 -1.742 0.000
H5 1.739 -0.516 0.000
H6 -0.942 2.263 0.922
H7 -0.942 2.263 -0.922
H8 -0.835 -1.646 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.30652.61161.36611.08133.31173.31171.8913
C21.30651.30512.38832.09012.08892.08892.4367
C32.61161.30513.59783.31271.08381.08383.4207
O41.36612.38833.59782.02884.24584.24580.9623
H51.08132.09013.31272.02883.97063.97062.8111
H63.31172.08891.08384.24583.97061.84484.0180
H73.31172.08891.08384.24583.97061.84484.0180
H81.89132.43673.42070.96232.81114.01804.0180

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.961 C1 O4 H8 107.363
C2 C1 O4 126.659 C2 C1 H5 121.883
C2 C3 H6 121.673 C2 C3 H7 121.673
O4 C1 H5 111.458 H6 C3 H7 116.654
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2=FULL/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.026      
2 C 0.111      
3 C -0.461      
4 O -0.529      
5 H 0.172      
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 -20.782 0.592 0.000
y 0.592 -24.581 0.000
z 0.000 0.000 -24.297
Traceless
 xyz
x 3.657 0.592 0.000
y 0.592 -2.041 0.000
z 0.000 0.000 -1.616
Polar
3z2-r2-3.231
x2-y23.799
xy0.592
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> 87.214
(<r2>)1/2 9.339