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All results from a given calculation for C3H4O (allenol)

using model chemistry: MP2=FULL/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/6-31G**
 hartrees
Energy at 0K-191.313187
Energy at 298.15K-191.316651
HF Energy-190.719120
Nuclear repulsion energy101.832890
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**
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' 3866 3612 36.99      
2 A' 3293 3077 5.01      
3 A' 3209 2998 12.85      
4 A' 2079 1942 43.18      
5 A' 1551 1449 30.45      
6 A' 1452 1357 67.32      
7 A' 1314 1228 3.39      
8 A' 1219 1139 122.19      
9 A' 1004 938 113.42      
10 A' 933 872 32.20      
11 A' 622 581 19.38      
12 A' 208 195 0.87      
13 A" 3297 3081 7.16      
14 A" 1064 994 1.06      
15 A" 915 855 24.11      
16 A" 638 596 0.31      
17 A" 427 399 129.75      
18 A" 261 244 2.65      

Unscaled Zero Point Vibrational Energy (zpe) 13674.6 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 12777.6 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**
ABC
1.45578 0.14457 0.13512

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.663 -0.489 0.000
C2 0.000 0.645 0.000
C3 -0.653 1.785 0.000
O4 0.114 -1.753 0.000
H5 1.742 -0.528 0.000
H6 -0.934 2.279 0.922
H7 -0.934 2.279 -0.922
H8 -0.847 -1.653 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.31422.62731.37741.08013.32593.32591.9059
C21.31421.31312.40102.10032.09512.09512.4495
C32.62731.31313.61993.32911.08271.08273.4434
O41.37742.40103.61992.03754.26654.26650.9661
H51.08012.10033.32912.03753.98583.98582.8229
H63.32592.09511.08274.26653.98581.84314.0395
H73.32592.09511.08274.26653.98581.84314.0395
H81.90592.44953.44340.96612.82294.03954.0395

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.523 C1 O4 H8 107.542
C2 C1 O4 126.248 C2 C1 H5 122.310
C2 C3 H6 121.668 C2 C3 H7 121.668
O4 C1 H5 111.442 H6 C3 H7 116.664
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2=FULL/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.141      
2 C -0.006      
3 C -0.335      
4 O -0.617      
5 H 0.165      
6 H 0.149      
7 H 0.149      
8 H 0.354      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.769 0.685 0.000
y 0.685 -25.021 0.000
z 0.000 0.000 -24.457
Traceless
 xyz
x 3.970 0.685 0.000
y 0.685 -2.408 0.000
z 0.000 0.000 -1.562
Polar
3z2-r2-3.124
x2-y24.252
xy0.685
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> 88.144
(<r2>)1/2 9.388