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All results from a given calculation for CH3COCCH (3-butyn-2-one)

using model chemistry: MP3=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3=FULL/6-311G*
 hartrees
Energy at 0K-229.464061
Energy at 298.15K-229.466928
HF Energy-228.637772
Nuclear repulsion energy142.649620
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 MP3=FULL/6-311G*
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' 3501 3501 41.75      
2 A' 3201 3201 6.90      
3 A' 3086 3086 1.09      
4 A' 2247 2247 51.00      
5 A' 1867 1867 155.35      
6 A' 1506 1506 16.62      
7 A' 1440 1440 48.36      
8 A' 1250 1250 139.21      
9 A' 1021 1021 18.34      
10 A' 764 764 17.33      
11 A' 670 670 46.18      
12 A' 615 615 12.66      
13 A' 453 453 2.04      
14 A' 183 183 3.70      
15 A" 3159 3159 5.77      
16 A" 1505 1505 12.27      
17 A" 1074 1074 5.37      
18 A" 689 689 38.63      
19 A" 612 612 2.69      
20 A" 259 259 1.59      
21 A" 134 134 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 14616.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14616.5 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 MP3=FULL/6-311G*
ABC
0.34265 0.13411 0.09814

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.493 0.725 0.000
C2 0.000 0.505 0.000
O3 -0.806 1.398 0.000
C4 -0.431 -0.900 0.000
C5 -0.743 -2.065 0.000
H6 1.699 1.795 0.000
H7 1.940 0.257 0.881
H8 1.940 0.257 -0.881
H9 -1.046 -3.086 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 C5 H6 H7 H8 H9
C11.50902.39542.51853.57531.08971.09371.09374.5794
C21.50901.20311.46982.67482.13362.14542.14543.7400
O32.39541.20312.32893.46322.53663.10203.10204.4902
C42.51851.46982.32891.20533.43562.78142.78142.2704
C53.57532.67483.46321.20534.56763.65563.65561.0652
H61.08972.13362.53663.43564.56761.78961.78965.6002
H71.09372.14543.10202.78143.65561.78961.76184.5678
H81.09372.14543.10202.78143.65561.78961.76184.5678
H94.57943.74004.49022.27041.06525.60024.56784.5678

picture of 3-butyn-2-one state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 123.672 C1 C2 C4 115.437
C2 C1 H6 109.310 C2 C1 H7 110.010
C2 C1 H8 110.010 C2 C4 C5 177.982
O3 C2 C4 120.892 C4 C5 H9 178.491
H6 C1 H7 110.094 H6 C1 H8 110.094
H7 C1 H8 107.304
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability