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 C3H6O (Acetone enol)

using model chemistry: HF/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 HF/6-31G
 hartrees
Energy at 0K-191.856770
Energy at 298.15K-191.863443
HF Energy-191.856770
Nuclear repulsion energy120.611014
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 HF/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' 4033 3641 39.38      
2 A' 3433 3100 15.26      
3 A' 3337 3013 5.76      
4 A' 3301 2981 20.62      
5 A' 3205 2893 19.97      
6 A' 1881 1698 150.73      
7 A' 1648 1488 9.54      
8 A' 1610 1453 5.75      
9 A' 1584 1430 20.54      
10 A' 1488 1344 22.19      
11 A' 1292 1167 173.73      
12 A' 1139 1029 37.30      
13 A' 1077 972 32.50      
14 A' 915 826 13.20      
15 A' 513 463 23.71      
16 A' 440 397 2.95      
17 A" 3268 2950 18.84      
18 A" 1631 1473 8.18      
19 A" 1214 1096 7.79      
20 A" 1021 922 118.48      
21 A" 797 719 9.70      
22 A" 554 500 0.29      
23 A" 447 404 208.48      
24 A" 191 172 1.76      

Unscaled Zero Point Vibrational Energy (zpe) 20008.2 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 18065.4 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 HF/6-31G
ABC
0.33714 0.30419 0.16471

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.043 -0.962 0.000
C2 0.000 0.105 0.000
C3 0.213 1.412 0.000
O4 -1.259 -0.462 0.000
H5 2.037 -0.539 0.000
H6 0.927 -1.593 0.873
H7 0.927 -1.593 -0.873
H8 1.208 1.806 0.000
H9 -0.592 2.123 0.000
H10 -1.976 0.162 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.49232.51482.35581.08021.08351.08352.77313.49153.2220
C21.49231.32411.38042.13662.12252.12252.08642.10301.9772
C32.51481.32412.38252.67073.20963.20961.07011.07402.5211
O42.35581.38042.38253.29692.61162.61163.35072.66930.9507
H51.08022.13662.67073.29691.76231.76232.48743.74134.0743
H61.08352.12253.20962.61161.76231.74633.52084.10833.5032
H71.08352.12253.20962.61161.76231.74633.52084.10833.5032
H82.77312.08641.07013.35072.48743.52083.52081.82733.5836
H93.49152.10301.07402.66933.74134.10834.10831.82732.4005
H103.22201.97722.52110.95074.07433.50323.50323.58362.4005

picture of Acetone enol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 126.382 C1 C2 O4 110.123
C2 C1 H5 111.297 C2 C1 H6 109.963
C2 C1 H7 109.963 C2 C3 H8 120.887
C2 C3 H9 122.200 C2 O4 H10 114.772
C3 C2 O4 123.495 H5 C1 H6 109.071
H5 C1 H7 109.071 H6 C1 H7 107.384
H8 C3 H9 116.913
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.474      
2 C 0.428      
3 C -0.459      
4 O -0.773      
5 H 0.167      
6 H 0.187      
7 H 0.187      
8 H 0.170      
9 H 0.152      
10 H 0.415      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.107 1.008 0.000 1.013
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.432 -3.558 0.000
y -3.558 -25.660 0.000
z 0.000 0.000 -27.060
Traceless
 xyz
x 4.928 -3.558 0.000
y -3.558 -1.414 0.000
z 0.000 0.000 -3.514
Polar
3z2-r2-7.027
x2-y24.228
xy-3.558
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.932 0.151 0.000
y 0.151 6.773 0.000
z 0.000 0.000 2.733


<r2> (average value of r2) Å2
<r2> 80.472
(<r2>)1/2 8.971