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All results from a given calculation for C3H4O (allenol)

using model chemistry: MP2/CEP-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 MP2/CEP-31G
 hartrees
Energy at 0K-34.652049
Energy at 298.15K-34.655195
HF Energy-34.305284
Nuclear repulsion energy52.814155
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 MP2/CEP-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' 3666 3542 24.30      
2 A' 3251 3142 7.76      
3 A' 3126 3020 24.57      
4 A' 1974 1907 27.78      
5 A' 1508 1458 9.02      
6 A' 1388 1341 52.01      
7 A' 1239 1198 1.00      
8 A' 1139 1100 97.59      
9 A' 923 892 196.11      
10 A' 900 870 26.32      
11 A' 546 527 24.92      
12 A' 184 178 0.16      
13 A" 3225 3116 21.24      
14 A" 1046 1011 0.88      
15 A" 873 843 48.15      
16 A" 586 566 1.32      
17 A" 382 369 188.24      
18 A" 189 183 6.53      

Unscaled Zero Point Vibrational Energy (zpe) 13071.6 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 12631.1 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 MP2/CEP-31G
ABC
1.33320 0.13353 0.12459

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.700 -0.503 0.000
C2 0.000 0.671 0.000
C3 -0.680 1.863 0.000
O4 0.110 -1.822 0.000
H5 1.793 -0.570 0.000
H6 -0.961 2.361 0.943
H7 -0.961 2.361 -0.943
H8 -0.878 -1.766 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.36742.73931.44521.09483.44323.44322.0212
C21.36741.37202.49592.18122.16092.16092.5906
C32.73931.37203.76913.46951.10311.10313.6347
O41.44522.49593.76912.09744.42044.42040.9894
H51.09482.18123.46952.09744.13194.13192.9261
H63.44322.16091.10314.42044.13191.88594.2346
H73.44322.16091.10314.42044.13191.88594.2346
H82.02122.59063.63470.98942.92614.23464.2346

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 178.878 C1 O4 H8 110.853
C2 C1 O4 125.082 C2 C1 H5 124.346
C2 C3 H6 121.257 C2 C3 H7 121.257
O4 C1 H5 110.572 H6 C3 H7 117.485
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.092      
2 C -0.271      
3 C -0.220      
4 O -0.553      
5 H 0.221      
6 H 0.172      
7 H 0.172      
8 H 0.386      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.214 0.926 0.000
y 0.926 -26.789 0.000
z 0.000 0.000 -25.345
Traceless
 xyz
x 4.853 0.926 0.000
y 0.926 -3.510 0.000
z 0.000 0.000 -1.343
Polar
3z2-r2-2.686
x2-y25.575
xy0.926
xz0.000
yz0.000


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