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All results from a given calculation for C3H4O (allenol)

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-190.735675
Energy at 298.15K-190.739156
Nuclear repulsion energy101.261745
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 B3PW91/3-21G*
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' 3543 3399 12.14      
2 A' 3215 3084 3.70      
3 A' 3111 2985 14.54      
4 A' 2088 2003 22.77      
5 A' 1533 1471 18.30      
6 A' 1427 1369 52.60      
7 A' 1328 1274 0.80      
8 A' 1205 1156 100.74      
9 A' 957 918 160.63      
10 A' 953 915 24.71      
11 A' 616 591 23.82      
12 A' 205 196 0.73      
13 A" 3177 3048 9.27      
14 A" 1076 1032 0.00      
15 A" 938 900 36.80      
16 A" 635 610 1.10      
17 A" 458 440 164.95      
18 A" 261 250 4.00      

Unscaled Zero Point Vibrational Energy (zpe) 13363.1 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 12820.5 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 B3PW91/3-21G*
ABC
1.45789 0.14279 0.13361

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.654 -0.475 0.000
C2 0.000 0.657 0.000
C3 -0.656 1.787 0.000
O4 0.127 -1.770 0.000
H5 1.738 -0.512 0.000
H6 -0.942 2.289 0.925
H7 -0.942 2.289 -0.925
H8 -0.864 -1.716 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.30812.61411.39861.08433.32293.32291.9609
C21.30811.30612.43132.09512.09842.09842.5261
C32.61411.30613.64263.31931.09051.09053.5096
O41.39862.43133.64262.04414.29824.29820.9921
H51.08432.09513.31932.04413.98533.98532.8669
H63.32292.09841.09054.29823.98531.85024.1114
H73.32292.09841.09054.29823.98531.85024.1114
H81.96092.52613.50960.99212.86694.11144.1114

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.883 C1 O4 H8 109.031
C2 C1 O4 127.827 C2 C1 H5 121.987
C2 C3 H6 121.970 C2 C3 H7 121.970
O4 C1 H5 110.186 H6 C3 H7 116.057
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.081      
2 C 0.042      
3 C -0.506      
4 O -0.541      
5 H 0.255      
6 H 0.230      
7 H 0.230      
8 H 0.372      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.208 0.777 0.000 1.436
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.800 1.031 0.000
y 1.031 -24.146 0.000
z 0.000 0.000 -24.309
Traceless
 xyz
x 3.427 1.031 0.000
y 1.031 -1.591 0.000
z 0.000 0.000 -1.836
Polar
3z2-r2-3.671
x2-y23.345
xy1.031
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.059 -2.161 0.000
y -2.161 7.837 0.000
z 0.000 0.000 2.323


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000