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All results from a given calculation for C3H4O (allenol)

using model chemistry: CID/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 CID/3-21G*
 hartrees
Energy at 0K-190.009660
Energy at 298.15K-190.013147
Nuclear repulsion energy101.189862
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 CID/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' 3662 3408 10.81      
2 A' 3284 3055 4.90      
3 A' 3186 2964 9.64      
4 A' 2128 1980 17.78      
5 A' 1594 1483 12.36      
6 A' 1477 1375 52.24      
7 A' 1364 1269 5.19      
8 A' 1230 1145 80.07      
9 A' 1016 945 50.84      
10 A' 976 908 136.64      
11 A' 634 590 25.73      
12 A' 202 188 0.54      
13 A" 3251 3025 8.93      
14 A" 1134 1055 0.19      
15 A" 984 916 24.96      
16 A" 658 612 1.17      
17 A" 397 369 183.50      
18 A" 263 245 4.31      

Unscaled Zero Point Vibrational Energy (zpe) 13719.3 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 12765.8 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 CID/3-21G*
ABC
1.42994 0.14302 0.13353

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.667 -0.465 0.000
C2 0.000 0.659 0.000
C3 -0.676 1.779 0.000
O4 0.136 -1.770 0.000
H5 1.746 -0.501 0.000
H6 -0.969 2.274 0.920
H7 -0.969 2.274 -0.920
H8 -0.846 -1.728 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.30712.61491.40871.07973.32003.32001.9706
C21.30711.30782.43272.09622.09582.09582.5321
C32.61491.30783.64033.32581.08531.08533.5106
O41.40872.43273.64032.05024.29154.29150.9829
H51.07972.09623.32582.05023.98923.98922.8678
H63.32002.09581.08534.29153.98921.84104.1075
H73.32002.09581.08534.29153.98921.84104.1075
H81.97062.53213.51060.98292.86784.10754.1075

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.579 C1 O4 H8 109.680
C2 C1 O4 127.172 C2 C1 H5 122.577
C2 C3 H6 121.991 C2 C3 H7 121.991
O4 C1 H5 110.250 H6 C3 H7 116.015
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at CID/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.086      
2 C -0.140      
3 C -0.414      
4 O -0.661      
5 H 0.263      
6 H 0.235      
7 H 0.235      
8 H 0.394      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.186 1.104 -0.002
y 1.104 -25.285 -0.004
z -0.002 -0.004 -24.653
Traceless
 xyz
x 3.783 1.104 -0.002
y 1.104 -2.366 -0.004
z -0.002 -0.004 -1.418
Polar
3z2-r2-2.835
x2-y24.099
xy1.104
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