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All results from a given calculation for C3H4O (allenol)

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-190.756804
Energy at 298.15K-190.760308
Nuclear repulsion energy101.445478
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 mPW1PW91/3-21G*
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' 3579 3399 14.77      
2 A' 3236 3072 3.26      
3 A' 3132 2974 12.83      
4 A' 2106 2000 22.40      
5 A' 1542 1464 20.24      
6 A' 1434 1362 53.66      
7 A' 1337 1269 0.58      
8 A' 1213 1152 102.21      
9 A' 966 918 164.86      
10 A' 964 915 23.54      
11 A' 621 590 24.90      
12 A' 206 196 0.72      
13 A" 3201 3039 7.95      
14 A" 1083 1028 0.00      
15 A" 947 899 35.82      
16 A" 641 609 1.35      
17 A" 457 434 169.37      
18 A" 266 253 4.05      

Unscaled Zero Point Vibrational Energy (zpe) 13465.3 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 12786.7 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 mPW1PW91/3-21G*
ABC
1.46137 0.14334 0.13411

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.654 -0.475 0.000
C2 0.000 0.656 0.000
C3 -0.655 1.784 0.000
O4 0.127 -1.767 0.000
H5 1.736 -0.511 0.000
H6 -0.940 2.284 0.924
H7 -0.940 2.284 -0.924
H8 -0.861 -1.716 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.30612.61031.39531.08263.31733.31731.9586
C21.30611.30432.42592.09152.09472.09472.5232
C32.61031.30433.63543.31391.08871.08873.5054
O41.39532.42593.63542.04124.28934.28930.9896
H51.08262.09153.31392.04123.97813.97812.8632
H63.31732.09471.08874.28933.97811.84814.1054
H73.31732.09471.08874.28933.97811.84814.1054
H81.95862.52323.50540.98962.86324.10544.1054

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.886 C1 O4 H8 109.238
C2 C1 O4 127.764 C2 C1 H5 121.954
C2 C3 H6 121.919 C2 C3 H7 121.919
O4 C1 H5 110.282 H6 C3 H7 116.160
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.072      
2 C 0.029      
3 C -0.507      
4 O -0.552      
5 H 0.259      
6 H 0.235      
7 H 0.235      
8 H 0.375      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.208 0.814 0.000 1.457
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.788 1.010 0.000
y 1.010 -24.176 0.000
z 0.000 0.000 -24.313
Traceless
 xyz
x 3.457 1.010 0.000
y 1.010 -1.625 0.000
z 0.000 0.000 -1.831
Polar
3z2-r2-3.663
x2-y23.388
xy1.010
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.030 -2.162 0.000
y -2.162 7.770 0.000
z 0.000 0.000 2.305


<r2> (average value of r2) Å2
<r2> 88.550
(<r2>)1/2 9.410