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: CCSD=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-192.724452
Energy at 298.15K-192.730943
HF Energy-191.959876
Nuclear repulsion energy120.855894
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 CCSD=FULL/6-31G(2df,p)
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' 3895 3667 31.12      
2 A' 3318 3124 5.69      
3 A' 3215 3027 2.91      
4 A' 3210 3022 11.39      
5 A' 3105 2924 11.75      
6 A' 1779 1675 118.15      
7 A' 1536 1446 6.13      
8 A' 1495 1408 0.38      
9 A' 1455 1370 38.36      
10 A' 1412 1329 3.60      
11 A' 1248 1175 144.41      
12 A' 1054 993 26.68      
13 A' 1008 949 7.20      
14 A' 887 835 5.48      
15 A' 486 457 18.13      
16 A' 409 385 1.32      
17 A" 3174 2989 9.93      
18 A" 1520 1431 6.22      
19 A" 1102 1037 0.76      
20 A" 843 794 58.39      
21 A" 753 709 1.35      
22 A" 522 492 0.33      
23 A" 441 415 107.92      
24 A" 193 182 1.39      

Unscaled Zero Point Vibrational Energy (zpe) 19029.0 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 17917.8 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 CCSD=FULL/6-31G(2df,p)
ABC
0.33945 0.30565 0.16576

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.874 -1.112 0.000
C2 0.000 0.099 0.000
C3 0.435 1.356 0.000
O4 -1.313 -0.260 0.000
H5 1.925 -0.837 0.000
H6 0.664 -1.723 0.879
H7 0.664 -1.723 -0.879
H8 1.492 1.570 0.000
H9 -0.245 2.198 0.000
H10 -1.847 0.536 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.49342.50732.34671.08731.09071.09072.75233.49443.1811
C21.49341.33041.36112.14102.12872.12872.09472.11361.8981
C32.50731.33042.38072.65193.21013.21011.07791.08222.4248
O42.34671.36112.38073.28942.61122.61123.34862.68050.9588
H51.08732.14102.65193.28941.77471.77472.44573.73154.0147
H61.09072.12873.21012.61121.77471.75863.50684.11963.4897
H71.09072.12873.21012.61121.77471.75863.50684.11963.4897
H82.75232.09471.07793.34862.44573.50683.50681.84653.4948
H93.49442.11361.08222.68053.73154.11964.11961.84652.3086
H103.18111.89812.42480.95884.01473.48973.48973.49482.3086

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 125.118 C1 C2 O4 110.506
C2 C1 H5 111.138 C2 C1 H6 109.946
C2 C1 H7 109.946 C2 C3 H8 120.505
C2 C3 H9 122.008 C2 O4 H10 108.554
C3 C2 O4 124.376 H5 C1 H6 109.141
H5 C1 H7 109.141 H6 C1 H7 107.447
H8 C3 H9 117.487
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability