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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-191.423512
Energy at 298.15K-191.427658
HF Energy-190.745964
Nuclear repulsion energy108.704163
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 MP2/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3191 3014 1.67      
2 A1 1941 1834 216.21      
3 A1 1450 1369 3.80      
4 A1 1072 1012 2.19      
5 A1 1031 974 25.62      
6 A1 753 711 2.25      
7 A2 3286 3104 0.00      
8 A2 1183 1117 0.00      
9 A2 622 588 0.00      
10 B1 3298 3115 0.00      
11 B1 1117 1055 0.14      
12 B1 709 670 1.07      
13 B1 329 311 3.74      
14 B2 3191 3014 0.11      
15 B2 1432 1352 4.36      
16 B2 1081 1021 16.25      
17 B2 966 912 103.24      
18 B2 524 495 1.34      

Unscaled Zero Point Vibrational Energy (zpe) 13587.4 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 12833.3 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 MP2/6-31G(2df,p)
ABC
0.68139 0.24728 0.19563

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.384
O2 0.000 0.000 1.585
C3 0.000 0.784 -0.861
C4 0.000 -0.784 -0.861
H5 0.914 1.280 -1.164
H6 -0.914 1.280 -1.164
H7 -0.914 -1.280 -1.164
H8 0.914 -1.280 -1.164

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.20071.47131.47132.20712.20712.20712.2071
O21.20072.56822.56823.16713.16713.16713.1671
C31.47132.56821.56861.08341.08342.27812.2781
C41.47132.56821.56862.27812.27811.08341.0834
H52.20713.16711.08342.27811.82863.14622.5602
H62.20713.16711.08342.27811.82862.56023.1462
H72.20713.16712.27811.08343.14622.56021.8286
H82.20713.16712.27811.08342.56023.14621.8286

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.786 C1 C3 H5 118.738
C1 C3 H6 118.738 C1 C4 C3 57.786
C1 C4 H7 118.738 C1 C4 H8 118.738
O2 C1 C3 147.786 O2 C1 C4 147.786
C3 C1 C4 64.429 C3 C4 H7 117.233
C3 C4 H8 117.233 C4 C3 H5 117.233
C4 C3 H6 117.233 H5 C3 H6 115.115
H7 C4 H8 115.115
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability