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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: G3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G3
 hartrees
Energy at 0K-191.742125
Energy at 298.15K-191.737190
HF Energy-190.726169
Nuclear repulsion energy109.759855
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 HF/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 3305 3114 0.24      
2 A1 2154 2029 389.67      
3 A1 1593 1501 0.85      
4 A1 1166 1098 18.23      
5 A1 1142 1076 0.02      
6 A1 791 745 10.47      
7 A2 3380 3185 0.00      
8 A2 1280 1206 0.00      
9 A2 727 685 0.00      
10 B1 3393 3197 7.54      
11 B1 1228 1157 0.48      
12 B1 772 727 0.41      
13 B1 382 360 9.91      
14 B2 3301 3110 6.06      
15 B2 1567 1477 3.70      
16 B2 1216 1146 17.92      
17 B2 1079 1016 136.59      
18 B2 552 520 5.99      

Unscaled Zero Point Vibrational Energy (zpe) 14512.6 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 13673.8 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
0.68088 0.24555 0.19451

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 1.593
C3 0.000 0.784 -0.862
C4 0.000 -0.784 -0.862
H5 0.914 1.285 -1.169
H6 -0.914 1.285 -1.169
H7 -0.914 -1.285 -1.169
H8 0.914 -1.285 -1.169

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.21251.46901.46902.21032.21032.21032.2103
O21.21252.57712.57713.17993.17993.17993.1799
C31.46902.57711.56711.08681.08682.28202.2820
C41.46902.57711.56712.28202.28201.08681.0868
H52.21033.17991.08682.28201.82883.15372.5692
H62.21033.17991.08682.28201.82882.56923.1537
H72.21033.17992.28201.08683.15372.56921.8288
H82.21033.17992.28201.08682.56923.15371.8288

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.824 C1 C3 H5 118.711
C1 C3 H6 118.711 C1 C4 C3 57.824
C1 C4 H7 118.711 C1 C4 H8 118.711
O2 C1 C3 147.824 O2 C1 C4 147.824
C3 C1 C4 64.353 C3 C4 H7 117.640
C3 C4 H8 117.640 C4 C3 H5 117.640
C4 C3 H6 117.640 H5 C3 H6 114.680
H7 C4 H8 114.680
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability