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All results from a given calculation for C3H4O (allenol)

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-191.834149
Energy at 298.15K-191.837632
Nuclear repulsion energy102.105059
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 mPW1PW91/6-31+G**
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' 3876 3689 45.78      
2 A' 3239 3083 2.79      
3 A' 3143 2992 15.51      
4 A' 2088 1987 32.96      
5 A' 1514 1441 73.39      
6 A' 1420 1352 53.33      
7 A' 1290 1228 22.03      
8 A' 1209 1150 125.80      
9 A' 1010 961 120.15      
10 A' 933 888 47.45      
11 A' 632 602 27.20      
12 A' 216 206 0.57      
13 A" 3220 3064 4.49      
14 A" 1037 987 1.11      
15 A" 905 861 31.44      
16 A" 637 606 0.51      
17 A" 419 399 130.09      
18 A" 274 260 4.56      

Unscaled Zero Point Vibrational Energy (zpe) 13530.7 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 12878.5 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 mPW1PW91/6-31+G**
ABC
1.46844 0.14530 0.13591

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.656 -0.491 0.000
C2 0.000 0.643 0.000
C3 -0.645 1.782 0.000
O4 0.111 -1.746 0.000
H5 1.739 -0.527 0.000
H6 -0.924 2.280 0.926
H7 -0.924 2.280 -0.926
H8 -0.849 -1.673 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.31072.61931.36731.08423.32223.32221.9137
C21.31071.30872.39162.09652.09562.09562.4673
C32.61931.30873.60803.31911.08821.08823.4614
O41.36732.39163.60802.03374.25904.25900.9634
H51.08422.09653.31912.03373.97913.97912.8312
H63.32222.09561.08824.25903.97911.85254.0612
H73.32222.09561.08824.25903.97911.85254.0612
H81.91372.46733.46140.96342.83124.06124.0612

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.490 C1 O4 H8 109.151
C2 C1 O4 126.507 C2 C1 H5 121.905
C2 C3 H6 121.658 C2 C3 H7 121.658
O4 C1 H5 111.588 H6 C3 H7 116.683
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.464      
2 C 0.487      
3 C -0.461      
4 O -0.451      
5 H 0.181      
6 H 0.175      
7 H 0.175      
8 H 0.358      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.041 0.912 0.000 1.384
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.272 0.816 0.000
y 0.816 -24.952 0.000
z 0.000 0.000 -24.836
Traceless
 xyz
x 3.622 0.816 0.000
y 0.816 -1.899 0.000
z 0.000 0.000 -1.724
Polar
3z2-r2-3.447
x2-y23.681
xy0.816
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.399 -2.149 0.000
y -2.149 9.199 0.000
z 0.000 0.000 3.872


<r2> (average value of r2) Å2
<r2> 87.985
(<r2>)1/2 9.380