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: MP2=FULL/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 MP2=FULL/cc-pVDZ
 hartrees
Energy at 0K-192.563921
Energy at 298.15K-192.570336
HF Energy-191.952218
Nuclear repulsion energy119.896832
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 MP2=FULL/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' 3818 3628 34.59      
2 A' 3325 3161 6.21      
3 A' 3224 3064 9.50      
4 A' 3208 3049 4.26      
5 A' 3098 2944 15.33      
6 A' 1746 1659 113.67      
7 A' 1491 1417 5.85      
8 A' 1463 1390 2.03      
9 A' 1424 1353 48.79      
10 A' 1378 1310 1.45      
11 A' 1227 1166 144.19      
12 A' 1026 975 25.52      
13 A' 982 933 5.50      
14 A' 881 837 6.45      
15 A' 474 450 18.92      
16 A' 404 384 1.12      
17 A" 3186 3028 9.88      
18 A" 1472 1399 7.77      
19 A" 1071 1018 0.30      
20 A" 787 748 65.08      
21 A" 731 695 1.62      
22 A" 503 478 0.67      
23 A" 451 429 106.09      
24 A" 183 174 1.58      

Unscaled Zero Point Vibrational Energy (zpe) 18775.4 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 17844.1 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 MP2=FULL/cc-pVDZ
ABC
0.33357 0.30172 0.16330

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.851 -1.138 0.000
C2 0.000 0.095 0.000
C3 0.473 1.359 0.000
O4 -1.329 -0.234 0.000
H5 1.919 -0.882 0.000
H6 0.625 -1.751 0.888
H7 0.625 -1.751 -0.888
H8 1.547 1.542 0.000
H9 -0.199 2.222 0.000
H10 -1.827 0.598 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.49852.52592.36071.09791.10171.10172.76943.52053.1916
C21.49851.34971.36952.15332.14122.14122.11862.13611.8950
C32.52591.34972.40552.66713.23753.23751.08971.09402.4231
O42.36071.36952.40553.31222.62852.62853.38082.70300.9690
H51.09792.15332.66713.31221.79311.79312.45263.75794.0276
H61.10172.14123.23752.62851.79311.77503.53274.15303.5094
H71.10172.14123.23752.62851.79311.77503.53274.15303.5094
H82.76942.11861.08973.38082.45263.53273.53271.87453.5042
H93.52052.13611.09402.70303.75794.15304.15301.87452.2994
H103.19161.89502.42310.96904.02763.50943.50943.50422.2994

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 124.869 C1 C2 O4 110.716
C2 C1 H5 111.121 C2 C1 H6 109.936
C2 C1 H7 109.936 C2 C3 H8 120.190
C2 C3 H9 121.531 C2 O4 H10 107.017
C3 C2 O4 124.414 H5 C1 H6 109.211
H5 C1 H7 109.211 H6 C1 H7 107.341
H8 C3 H9 118.279
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability