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All results from a given calculation for C3H4O (allenol)

using model chemistry: QCISD/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 QCISD/3-21G*
 hartrees
Energy at 0K-190.066022
Energy at 298.15K-190.069356
HF Energy-189.647163
Nuclear repulsion energy100.270858
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 QCISD/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' 3498 3362 6.17      
2 A' 3197 3072 5.49      
3 A' 3094 2974 12.23      
4 A' 2027 1948 17.54      
5 A' 1552 1492 5.95      
6 A' 1440 1384 43.55      
7 A' 1332 1280 7.23      
8 A' 1180 1134 68.73      
9 A' 960 923 54.31      
10 A' 928 891 103.97      
11 A' 604 580 22.48      
12 A' 186 179 0.42      
13 A" 3158 3035 10.95      
14 A" 1103 1060 0.16      
15 A" 932 895 26.87      
16 A" 623 598 0.31      
17 A" 393 378 164.92      
18 A" 230 221 4.96      

Unscaled Zero Point Vibrational Energy (zpe) 13216.6 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 12702.5 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 QCISD/3-21G*
ABC
1.39405 0.14063 0.13118

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.680 -0.464 0.000
C2 0.000 0.667 0.000
C3 -0.700 1.787 0.000
O4 0.150 -1.785 0.000
H5 1.766 -0.501 0.000
H6 -1.002 2.282 0.926
H7 -1.002 2.282 -0.926
H8 -0.842 -1.727 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.31952.64071.42341.08613.35063.35061.9783
C21.31951.32132.45592.11702.11432.11432.5373
C32.64071.32133.67163.36401.09221.09223.5169
O41.42342.45593.67162.06404.32684.32680.9938
H51.08612.11703.36402.06404.03264.03262.8820
H63.35062.11431.09224.32684.03261.85154.1174
H73.35062.11431.09224.32684.03261.85154.1174
H81.97832.53733.51690.99382.88204.11744.1174

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.052 C1 O4 H8 108.549
C2 C1 O4 127.069 C2 C1 H5 122.998
C2 C3 H6 122.045 C2 C3 H7 122.045
O4 C1 H5 109.933 H6 C3 H7 115.906
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at QCISD/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.079      
2 C -0.145      
3 C -0.409      
4 O -0.651      
5 H 0.263      
6 H 0.235      
7 H 0.235      
8 H 0.392      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.344 1.118 -0.002
y 1.118 -25.378 -0.004
z -0.002 -0.004 -24.752
Traceless
 xyz
x 3.721 1.118 -0.002
y 1.118 -2.330 -0.004
z -0.002 -0.004 -1.392
Polar
3z2-r2-2.784
x2-y24.034
xy1.118
xz-0.002
yz-0.004


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