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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: HF/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-188.294742
Energy at 298.15K-188.299150
HF Energy-188.294742
Nuclear repulsion energy108.470073
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/STO-3G
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 3643 2974 8.00      
2 A1 2310 1886 47.51      
3 A1 1743 1423 0.27      
4 A1 1382 1128 0.64      
5 A1 1259 1028 0.14      
6 A1 921 752 3.94      
7 A2 3789 3093 0.00      
8 A2 1393 1137 0.00      
9 A2 869 710 0.00      
10 B1 3793 3097 3.25      
11 B1 1299 1061 0.00      
12 B1 881 720 0.39      
13 B1 424 346 2.70      
14 B2 3634 2967 13.73      
15 B2 1722 1406 0.57      
16 B2 1387 1133 10.31      
17 B2 1180 964 64.08      
18 B2 555 454 15.99      

Unscaled Zero Point Vibrational Energy (zpe) 16091.8 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 13138.9 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 HF/STO-3G
ABC
0.69862 0.24230 0.19361

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.392
O2 0.000 0.000 1.601
C3 0.000 0.771 -0.871
C4 0.000 -0.771 -0.871
H5 0.907 1.275 -1.179
H6 -0.907 1.275 -1.179
H7 -0.907 -1.275 -1.179
H8 0.907 -1.275 -1.179

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.20871.47981.47982.21712.21712.21712.2171
O21.20872.58922.58923.18983.18983.18983.1898
C31.47982.58921.54191.08221.08222.25872.2587
C41.47982.58921.54192.25872.25871.08221.0822
H52.21713.18981.08222.25871.81393.12882.5493
H62.21713.18981.08222.25871.81392.54933.1288
H72.21713.18982.25871.08223.12882.54931.8139
H82.21713.18982.25871.08222.54933.12881.8139

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 58.602 C1 C3 H5 119.040
C1 C3 H6 119.040 C1 C4 C3 58.602
C1 C4 H7 119.040 C1 C4 H8 119.040
O2 C1 C3 148.602 O2 C1 C4 148.602
C3 C1 C4 62.795 C3 C4 H7 117.740
C3 C4 H8 117.740 C4 C3 H5 117.740
C4 C3 H6 117.740 H5 C3 H6 113.872
H7 C4 H8 113.872
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.200      
2 O -0.196      
3 C -0.163      
4 C -0.163      
5 H 0.081      
6 H 0.081      
7 H 0.081      
8 H 0.081      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.755 1.755
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.296 0.000 0.000
y 0.000 -21.860 0.000
z 0.000 0.000 -25.598
Traceless
 xyz
x 3.433 0.000 0.000
y 0.000 1.087 0.000
z 0.000 0.000 -4.520
Polar
3z2-r2-9.040
x2-y21.564
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.840 0.000 0.000
y 0.000 2.230 0.000
z 0.000 0.000 3.169


<r2> (average value of r2) Å2
<r2> 67.114
(<r2>)1/2 8.192