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: PBEPBE/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-192.971985
Energy at 298.15K-192.978293
HF Energy-192.971985
Nuclear repulsion energy119.972370
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/Def2TZVPP
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' 3691 3647 22.02      
2 A' 3183 3144 7.85      
3 A' 3084 3046 3.20      
4 A' 3082 3045 12.60      
5 A' 2973 2937 17.15      
6 A' 1668 1648 146.44      
7 A' 1438 1420 9.64      
8 A' 1404 1387 1.82      
9 A' 1360 1344 33.51      
10 A' 1321 1305 10.18      
11 A' 1167 1152 138.15      
12 A' 983 971 31.73      
13 A' 950 938 10.63      
14 A' 849 839 4.88      
15 A' 466 460 17.57      
16 A' 398 394 1.40      
17 A" 3027 2990 9.68      
18 A" 1419 1402 8.50      
19 A" 1030 1017 0.15      
20 A" 765 755 67.59      
21 A" 702 693 0.62      
22 A" 491 485 0.07      
23 A" 448 443 94.20      
24 A" 179 177 1.06      

Unscaled Zero Point Vibrational Energy (zpe) 18037.6 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 17819.4 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 PBEPBE/Def2TZVPP
ABC
0.33482 0.30161 0.16353

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.886 -1.112 0.000
C2 0.000 0.097 0.000
C3 0.428 1.370 0.000
O4 -1.318 -0.273 0.000
H5 1.942 -0.823 0.000
H6 0.683 -1.731 0.885
H7 0.683 -1.731 -0.885
H8 1.490 1.599 0.000
H9 -0.266 2.212 0.000
H10 -1.873 0.523 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.49882.52352.35901.09451.09921.09922.77713.51793.2069
C21.49881.34291.36912.14862.14262.14262.11602.13191.9204
C32.52351.34292.39732.66433.23463.23461.08681.09132.4514
O42.35901.36912.39733.30632.62982.62983.37512.69850.9696
H51.09452.14862.66433.30631.78701.78702.46323.75284.0449
H61.09922.14263.23462.62981.78701.77063.53874.15113.5207
H71.09922.14263.23462.62981.78701.77063.53874.15113.5207
H82.77712.11601.08683.37512.46323.53873.53871.86013.5308
H93.51792.13191.09132.69853.75284.15114.15111.86012.3312
H103.20691.92042.45140.96964.04493.52073.52073.53082.3312

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 125.161 C1 C2 O4 110.601
C2 C1 H5 110.935 C2 C1 H6 110.169
C2 C1 H7 110.169 C2 C3 H8 120.754
C2 C3 H9 121.943 C2 O4 H10 109.204
C3 C2 O4 124.238 H5 C1 H6 109.094
H5 C1 H7 109.094 H6 C1 H7 107.295
H8 C3 H9 117.303
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.220      
2 C 0.141      
3 C -0.258      
4 O -0.273      
5 H 0.086      
6 H 0.096      
7 H 0.096      
8 H 0.074      
9 H 0.058      
10 H 0.201      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.115 0.448 0.000 0.463
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.460 -3.170 0.000
y -3.170 -24.916 0.000
z 0.000 0.000 -27.299
Traceless
 xyz
x 3.648 -3.170 0.000
y -3.170 -0.036 0.000
z 0.000 0.000 -3.611
Polar
3z2-r2-7.222
x2-y22.456
xy-3.170
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.585 0.183 0.000
y 0.183 8.231 0.000
z 0.000 0.000 4.728


<r2> (average value of r2) Å2
<r2> 81.057
(<r2>)1/2 9.003