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All results from a given calculation for C3H4O (allenol)

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-190.575611
Energy at 298.15K-190.578991
Nuclear repulsion energy100.495208
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 PBEPBE/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' 3368 3337 6.36      
2 A' 3131 3102 3.86      
3 A' 3025 2997 19.63      
4 A' 2019 2001 24.72      
5 A' 1490 1477 12.85      
6 A' 1390 1377 49.94      
7 A' 1294 1282 0.85      
8 A' 1170 1159 89.36      
9 A' 924 915 121.17      
10 A' 903 894 39.38      
11 A' 594 589 20.59      
12 A' 194 192 0.69      
13 A" 3085 3057 12.20      
14 A" 1040 1030 0.02      
15 A" 892 884 42.48      
16 A" 610 604 0.25      
17 A" 470 465 138.51      
18 A" 236 234 4.16      

Unscaled Zero Point Vibrational Energy (zpe) 12916.2 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 12798.7 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 PBEPBE/3-21G
ABC
1.42908 0.14088 0.13174

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.664 -0.474 0.000
C2 0.000 0.664 0.000
C3 -0.675 1.792 0.000
O4 0.139 -1.783 0.000
H5 1.756 -0.512 0.000
H6 -0.970 2.297 0.931
H7 -0.970 2.297 -0.931
H8 -0.865 -1.709 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.31782.63271.41001.09283.34933.34931.9652
C21.31781.31502.45122.11352.11552.11552.5259
C32.63271.31503.66733.34991.09941.09943.5068
O41.41002.45123.66732.05654.32994.32991.0071
H51.09282.11353.34992.05654.02374.02372.8814
H63.34932.11551.09944.32994.02371.86224.1147
H73.34932.11551.09944.32994.02371.86224.1147
H81.96522.52593.50681.00712.88144.11474.1147

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.361 C1 O4 H8 107.620
C2 C1 O4 127.913 C2 C1 H5 122.233
C2 C3 H6 122.120 C2 C3 H7 122.120
O4 C1 H5 109.854 H6 C3 H7 115.755
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.123      
2 C 0.084      
3 C -0.503      
4 O -0.487      
5 H 0.240      
6 H 0.217      
7 H 0.217      
8 H 0.355      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.185 0.599 0.000 1.328
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.956 0.980 0.000
y 0.980 -24.001 0.000
z 0.000 0.000 -24.409
Traceless
 xyz
x 3.249 0.980 0.000
y 0.980 -1.319 0.000
z 0.000 0.000 -1.930
Polar
3z2-r2-3.860
x2-y23.045
xy0.980
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.223 -2.179 0.000
y -2.179 8.083 0.000
z 0.000 0.000 2.387


<r2> (average value of r2) Å2
<r2> 89.874
(<r2>)1/2 9.480