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All results from a given calculation for C3H4O (allenol)

using model chemistry: MP2/CEP-121G

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-121G
 hartrees
Energy at 0K-34.708051
Energy at 298.15K-34.711409
HF Energy-34.324605
Nuclear repulsion energy53.411011
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-121G
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' 3608 3521 25.98      
2 A' 3208 3131 5.34      
3 A' 3071 2998 18.86      
4 A' 1952 1905 27.77      
5 A' 1510 1474 7.28      
6 A' 1394 1361 46.92      
7 A' 1250 1220 2.01      
8 A' 1136 1109 104.76      
9 A' 949 926 79.72      
10 A' 910 889 120.91      
11 A' 574 560 24.06      
12 A' 213 208 0.39      
13 A" 3170 3094 14.49      
14 A" 1068 1042 0.92      
15 A" 899 878 39.02      
16 A" 607 592 0.59      
17 A" 363 354 170.79      
18 A" 262 256 2.51      

Unscaled Zero Point Vibrational Energy (zpe) 13072.1 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 12758.4 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-121G
ABC
1.35703 0.13721 0.12793

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.690 -0.484 0.000
C2 0.000 0.666 0.000
C3 -0.671 1.831 0.000
O4 0.111 -1.805 0.000
H5 1.776 -0.548 0.000
H6 -0.955 2.327 0.934
H7 -0.955 2.327 -0.934
H8 -0.873 -1.749 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.34132.68621.44171.08783.38913.38912.0108
C21.34131.34512.47282.15162.13222.13222.5677
C32.68621.34513.71923.41371.09521.09523.5862
O41.44172.47283.71922.08584.36854.36850.9857
H51.08782.15163.41372.08584.07474.07472.9085
H63.38912.13221.09524.36854.07471.86844.1830
H73.38912.13221.09524.36854.07471.86844.1830
H82.01082.56773.58620.98572.90854.18304.1830

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 178.953 C1 O4 H8 110.453
C2 C1 O4 125.343 C2 C1 H5 124.354
C2 C3 H6 121.459 C2 C3 H7 121.459
O4 C1 H5 110.303 H6 C3 H7 117.083
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.028      
2 C 0.055      
3 C -0.403      
4 O -0.590      
5 H 0.192      
6 H 0.171      
7 H 0.171      
8 H 0.376      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.235 0.936 0.000
y 0.936 -26.613 0.000
z 0.000 0.000 -25.305
Traceless
 xyz
x 4.724 0.936 0.000
y 0.936 -3.344 0.000
z 0.000 0.000 -1.381
Polar
3z2-r2-2.762
x2-y25.379
xy0.936
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