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All results from a given calculation for C3H4O (allenol)

using model chemistry: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-191.294091
Energy at 298.15K-191.297509
HF Energy-190.706143
Nuclear repulsion energy101.479490
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/6-31G*
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' 3751 3572 30.38      
2 A' 3241 3087 6.06      
3 A' 3151 3001 15.12      
4 A' 2082 1982 33.60      
5 A' 1543 1469 44.22      
6 A' 1458 1388 57.93      
7 A' 1323 1260 0.87      
8 A' 1223 1164 119.78      
9 A' 1006 958 111.23      
10 A' 929 885 34.99      
11 A' 619 590 19.86      
12 A' 207 198 0.73      
13 A" 3224 3070 10.17      
14 A" 1064 1013 0.97      
15 A" 902 859 23.15      
16 A" 626 596 0.72      
17 A" 407 388 136.85      
18 A" 260 247 2.84      

Unscaled Zero Point Vibrational Energy (zpe) 13506.8 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 12862.5 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/6-31G*
ABC
1.43623 0.14393 0.13443

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.668 -0.488 0.000
C2 0.000 0.647 0.000
C3 -0.660 1.786 0.000
O4 0.118 -1.756 0.000
H5 1.754 -0.531 0.000
H6 -0.947 2.285 0.926
H7 -0.947 2.285 -0.926
H8 -0.851 -1.661 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.31682.63401.38201.08663.34003.34001.9192
C21.31681.31722.40532.11282.10682.10682.4596
C32.63401.31723.62673.34671.09041.09043.4528
O41.38202.40533.62672.04354.28014.28010.9732
H51.08662.11283.34672.04354.01044.01042.8391
H63.34002.10681.09044.28014.01041.85294.0545
H73.34002.10681.09044.28014.01041.85294.0545
H81.91922.45963.45280.97322.83914.05454.0545

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.592 C1 O4 H8 107.884
C2 C1 O4 126.044 C2 C1 H5 122.773
C2 C3 H6 121.826 C2 C3 H7 121.826
O4 C1 H5 111.183 H6 C3 H7 116.347
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at QCISD/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.079      
2 C 0.035      
3 C -0.463      
4 O -0.714      
5 H 0.215      
6 H 0.197      
7 H 0.197      
8 H 0.454      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.888 0.948 -0.002
y 0.948 -24.973 -0.003
z -0.002 -0.003 -24.383
Traceless
 xyz
x 3.790 0.948 -0.002
y 0.948 -2.338 -0.003
z -0.002 -0.003 -1.452
Polar
3z2-r2-2.905
x2-y24.085
xy0.948
xz-0.002
yz-0.003


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> 88.611
(<r2>)1/2 9.413