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All results from a given calculation for C3H4O (allenol)

using model chemistry: B3LYP/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 B3LYP/3-21G*
 hartrees
Energy at 0K-190.810358
Energy at 298.15K-190.813829
Nuclear repulsion energy101.179459
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 B3LYP/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' 3493 3361 7.63      
2 A' 3207 3085 4.51      
3 A' 3103 2985 16.37      
4 A' 2081 2002 24.11      
5 A' 1542 1484 13.86      
6 A' 1430 1376 54.28      
7 A' 1323 1272 1.68      
8 A' 1201 1156 92.73      
9 A' 954 918 87.90      
10 A' 948 912 91.11      
11 A' 615 591 21.84      
12 A' 205 197 0.73      
13 A" 3164 3044 11.32      
14 A" 1081 1040 0.02      
15 A" 936 900 33.34      
16 A" 633 609 0.81      
17 A" 452 435 156.20      
18 A" 260 250 3.23      

Unscaled Zero Point Vibrational Energy (zpe) 13313.4 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 12807.4 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 B3LYP/3-21G*
ABC
1.44616 0.14279 0.13349

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.659 -0.469 0.000
C2 0.000 0.659 0.000
C3 -0.667 1.782 0.000
O4 0.135 -1.771 0.000
H5 1.742 -0.508 0.000
H6 -0.958 2.282 0.923
H7 -0.958 2.282 -0.923
H8 -0.859 -1.719 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.30722.61301.40391.08353.32293.32291.9665
C21.30721.30592.43442.09712.09882.09882.5284
C32.61301.30593.64283.32371.08981.08983.5062
O41.40392.43443.64282.04494.29884.29880.9950
H51.08352.09713.32372.04493.99143.99142.8694
H63.32292.09881.08984.29883.99141.84644.1074
H73.32292.09881.08984.29883.99141.84644.1074
H81.96652.52843.50620.99502.86944.10744.1074

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.604 C1 O4 H8 108.924
C2 C1 O4 127.743 C2 C1 H5 122.335
C2 C3 H6 122.094 C2 C3 H7 122.094
O4 C1 H5 109.922 H6 C3 H7 115.810
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.066      
2 C 0.056      
3 C -0.464      
4 O -0.526      
5 H 0.229      
6 H 0.207      
7 H 0.207      
8 H 0.356      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.182 0.773 0.000 1.412
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.920 1.087 0.000
y 1.087 -24.345 0.000
z 0.000 0.000 -24.306
Traceless
 xyz
x 3.405 1.087 0.000
y 1.087 -1.732 0.000
z 0.000 0.000 -1.673
Polar
3z2-r2-3.347
x2-y23.425
xy1.087
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.116 -2.180 0.000
y -2.180 7.840 0.000
z 0.000 0.000 2.314


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000