return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C3H4O (allenol)

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-191.747079
Energy at 298.15K-191.750477
HF Energy-191.747079
Nuclear repulsion energy 
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 B97D3/6-31G*
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' 3642 3571 17.48      
2 A' 3149 3087 9.27      
3 A' 3047 2987 34.01      
4 A' 2025 1985 37.54      
5 A' 1496 1466 39.56      
6 A' 1414 1386 62.43      
7 A' 1279 1254 2.71      
8 A' 1184 1161 122.19      
9 A' 975 956 109.70      
10 A' 881 864 36.27      
11 A' 612 600 15.87      
12 A' 207 203 0.98      
13 A" 3105 3045 19.30      
14 A" 1027 1007 0.50      
15 A" 865 848 28.48      
16 A" 610 598 0.42      
17 A" 458 449 113.48      
18 A" 253 248 2.53      

Unscaled Zero Point Vibrational Energy (zpe) 13113.7 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 12856.7 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 B97D3/6-31G*
ABC
1.44203 0.14343 0.13406

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.666 -0.487 0.000
C2 0.000 0.651 0.000
C3 -0.666 1.785 0.000
O4 0.126 -1.759 0.000
H5 1.756 -0.531 0.000
H6 -0.959 2.289 0.928
H7 -0.959 2.289 -0.928
H8 -0.845 -1.663 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.31832.63331.38231.09063.34783.34781.9148
C21.31831.31502.41342.11612.11302.11302.4632
C32.63331.31503.63143.35031.09611.09613.4522
O41.38232.41343.63142.04114.29294.29290.9758
H51.09062.11613.35032.04114.02244.02242.8366
H63.34782.11301.09614.29294.02241.85604.0613
H73.34782.11301.09614.29294.02241.85604.0613
H81.91482.46323.45220.97582.83664.06134.0613

picture of allenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.598 C1 O4 H8 108.114
C2 C1 O4 127.171 C2 C1 H5 122.052
C2 C3 H6 122.041 C2 C3 H7 122.041
O4 C1 H5 110.777 H6 C3 H7 115.909
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.085      
2 C 0.253      
3 C -0.515      
4 O -0.553      
5 H 0.170      
6 H 0.165      
7 H 0.165      
8 H 0.399      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.004 0.634 0.000 1.187
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.722 0.984 0.000
y 0.984 -24.146 0.000
z 0.000 0.000 -24.012
Traceless
 xyz
x 3.358 0.984 0.000
y 0.984 -1.779 0.000
z 0.000 0.000 -1.578
Polar
3z2-r2-3.157
x2-y23.425
xy0.984
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.587 -2.256 0.000
y -2.256 8.460 0.000
z 0.000 0.000 2.941


<r2> (average value of r2) Å2
<r2> 88.511
(<r2>)1/2 9.408