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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: MP3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-191.331714
Energy at 298.15K-191.335934
HF Energy-190.732098
Nuclear repulsion energy108.732965
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 MP3/6-31+G**
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 3232 3008 0.48      
2 A1 2025 1884 247.42      
3 A1 1508 1403 1.72      
4 A1 1094 1018 5.46      
5 A1 1085 1010 17.64      
6 A1 753 701 4.38      
7 A2 3319 3089 0.00      
8 A2 1209 1125 0.00      
9 A2 685 637 0.00      
10 B1 3330 3099 3.52      
11 B1 1149 1069 0.06      
12 B1 734 683 0.60      
13 B1 328 305 5.22      
14 B2 3230 3006 2.05      
15 B2 1487 1384 3.21      
16 B2 1137 1058 25.35      
17 B2 1018 947 104.05      
18 B2 523 487 3.42      

Unscaled Zero Point Vibrational Energy (zpe) 13922.8 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 12955.1 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 MP3/6-31+G**
ABC
0.68097 0.24751 0.19564

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.409
O2 0.000 0.000 1.679
C3 0.000 0.802 -0.841
C4 0.000 -0.802 -0.841
H5 0.808 0.725 -1.447
H6 -0.808 0.725 -1.447
H7 -0.808 -0.725 -1.447
H8 0.808 -0.725 -1.447

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.27031.48541.48542.15012.15012.15012.1501
O21.27032.64502.64503.30923.30923.30923.3092
C31.48542.64501.60411.01281.01281.83101.8310
C41.48542.64501.60411.83101.83101.01281.0128
H52.15013.30921.01281.83101.61662.17191.4506
H62.15013.30921.01281.83101.61661.45062.1719
H72.15013.30921.83101.01282.17191.45061.6166
H82.15013.30921.83101.01281.45062.17191.6166

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.318 C1 C3 H5 117.529
C1 C3 H6 117.529 C1 C4 C3 57.318
C1 C4 H7 117.529 C1 C4 H8 117.529
O2 C1 C3 147.318 O2 C1 C4 147.318
C3 C1 C4 65.364 C3 C4 H7 85.651
C3 C4 H8 85.651 C4 C3 H5 85.651
C4 C3 H6 85.651 H5 C3 H6 105.892
H7 C4 H8 105.892
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability