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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: MP2=FULL/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/6-31G**
 hartrees
Energy at 0K-191.332315
Energy at 298.15K-191.336495
HF Energy-190.731100
Nuclear repulsion energy108.533791
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/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3222 3010 0.82      
2 A1 1942 1814 201.42      
3 A1 1496 1398 2.47      
4 A1 1086 1014 7.90      
5 A1 1070 1000 21.39      
6 A1 752 702 2.32      
7 A2 3316 3098 0.00      
8 A2 1206 1127 0.00      
9 A2 664 620 0.00      
10 B1 3327 3108 1.51      
11 B1 1138 1063 0.13      
12 B1 731 683 0.90      
13 B1 320 299 4.28      
14 B2 3220 3009 1.00      
15 B2 1477 1380 3.52      
16 B2 1118 1045 19.55      
17 B2 998 933 110.98      
18 B2 519 485 1.90      

Unscaled Zero Point Vibrational Energy (zpe) 13799.9 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 12894.6 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/6-31G**
ABC
0.68328 0.24584 0.19478

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.380
O2 0.000 0.000 1.592
C3 0.000 0.783 -0.862
C4 0.000 -0.783 -0.862
H5 0.911 1.280 -1.166
H6 -0.911 1.280 -1.166
H7 -0.911 -1.280 -1.166
H8 0.911 -1.280 -1.166

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.21191.46871.46872.20442.20442.20442.2044
O21.21192.57632.57633.17433.17433.17433.1743
C31.46872.57631.56651.08131.08132.27552.2755
C41.46872.57631.56652.27552.27551.08131.0813
H52.20443.17431.08132.27551.82263.14192.5592
H62.20443.17431.08132.27551.82262.55923.1419
H72.20443.17432.27551.08133.14192.55921.8226
H82.20443.17432.27551.08132.55923.14191.8226

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.774 C1 C3 H5 118.854
C1 C3 H6 118.854 C1 C4 C3 57.774
C1 C4 H7 118.854 C1 C4 H8 118.854
O2 C1 C3 147.774 O2 C1 C4 147.774
C3 C1 C4 64.453 C3 C4 H7 117.324
C3 C4 H8 117.324 C4 C3 H5 117.324
C4 C3 H6 117.324 H5 C3 H6 114.871
H7 C4 H8 114.871
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability