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/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-192.594921
Energy at 298.15K-192.601323
HF Energy-191.952047
Nuclear repulsion energy119.659283
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/cc-pVDZ
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' 3843 3641 28.06      
2 A' 3286 3113 9.12      
3 A' 3182 3014 10.18      
4 A' 3180 3012 8.57      
5 A' 3070 2908 18.86      
6 A' 1762 1669 119.43      
7 A' 1492 1413 3.89      
8 A' 1470 1392 0.79      
9 A' 1429 1354 46.60      
10 A' 1386 1313 1.15      
11 A' 1244 1178 143.60      
12 A' 1030 976 25.29      
13 A' 988 936 7.00      
14 A' 876 830 6.74      
15 A' 475 450 18.67      
16 A' 404 382 1.10      
17 A" 3143 2978 14.64      
18 A" 1472 1395 6.41      
19 A" 1074 1017 0.18      
20 A" 803 760 59.60      
21 A" 729 691 2.59      
22 A" 501 475 0.32      
23 A" 434 411 107.67      
24 A" 181 171 1.44      

Unscaled Zero Point Vibrational Energy (zpe) 18726.0 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 17739.1 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/cc-pVDZ
ABC
0.33285 0.29986 0.16261

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.859 -1.139 0.000
C2 0.000 0.097 0.000
C3 0.467 1.362 0.000
O4 -1.331 -0.237 0.000
H5 1.929 -0.879 0.000
H6 0.634 -1.753 0.891
H7 0.634 -1.753 -0.891
H8 1.542 1.555 0.000
H9 -0.210 2.225 0.000
H10 -1.837 0.587 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.50512.53202.36811.10111.10491.10492.77943.53013.2008
C21.50511.34871.37202.16132.14912.14912.12242.13871.9009
C32.53201.34872.40592.67553.24473.24471.09271.09682.4302
O42.36811.37202.40593.32192.63692.63693.38602.70520.9671
H51.10112.16132.67553.32191.79821.79822.46403.76944.0404
H61.10492.14913.24472.63691.79821.78133.54434.16353.5179
H71.10492.14913.24472.63691.79821.78133.54434.16353.5179
H82.77942.12241.09273.38602.46403.54433.54431.87633.5147
H93.53012.13871.09682.70523.76944.16354.16351.87632.3083
H103.20081.90092.43020.96714.04043.51793.51793.51472.3083

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 124.963 C1 C2 O4 110.705
C2 C1 H5 111.101 C2 C1 H6 109.908
C2 C1 H7 109.908 C2 C3 H8 120.401
C2 C3 H9 121.641 C2 O4 H10 107.454
C3 C2 O4 124.332 H5 C1 H6 109.206
H5 C1 H7 109.206 H6 C1 H7 107.431
H8 C3 H9 117.958
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability