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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: HF/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 HF/6-31G(2df,p)
 hartrees
Energy at 0K-190.747845
Energy at 298.15K-190.752223
HF Energy-190.747845
Nuclear repulsion energy109.976461
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(2df,p)
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 3270 2961 0.20      
2 A1 2147 1944 393.84      
3 A1 1568 1420 0.93      
4 A1 1150 1041 14.31      
5 A1 1130 1023 0.03      
6 A1 788 713 8.96      
7 A2 3349 3033 0.00      
8 A2 1268 1148 0.00      
9 A2 696 630 0.00      
10 B1 3362 3045 5.81      
11 B1 1215 1100 0.43      
12 B1 756 684 0.39      
13 B1 388 351 8.71      
14 B2 3266 2957 5.39      
15 B2 1545 1399 3.78      
16 B2 1197 1084 17.04      
17 B2 1051 952 122.97      
18 B2 556 504 4.72      

Unscaled Zero Point Vibrational Energy (zpe) 14350.5 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 12994.3 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 HF/6-31G(2df,p)
ABC
0.68946 0.25441 0.20050

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.387
O2 0.000 0.000 1.559
C3 0.000 0.779 -0.850
C4 0.000 -0.779 -0.850
H5 0.907 1.277 -1.148
H6 -0.907 1.277 -1.148
H7 -0.907 -1.277 -1.148
H8 0.907 -1.277 -1.148

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.17171.46191.46192.19292.19292.19292.1929
O21.17172.53162.53163.12713.12713.12713.1271
C31.46192.53161.55801.07671.07672.26652.2665
C41.46192.53161.55802.26652.26651.07671.0767
H52.19293.12711.07672.26651.81423.13212.5531
H62.19293.12711.07672.26651.81422.55313.1321
H72.19293.12712.26651.07673.13212.55311.8142
H82.19293.12712.26651.07672.55313.13211.8142

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.801 C1 C3 H5 118.713
C1 C3 H6 118.713 C1 C4 C3 57.801
C1 C4 H7 118.713 C1 C4 H8 118.713
O2 C1 C3 147.801 O2 C1 C4 147.801
C3 C1 C4 64.398 C3 C4 H7 117.525
C3 C4 H8 117.525 C4 C3 H5 117.525
C4 C3 H6 117.525 H5 C3 H6 114.817
H7 C4 H8 114.817
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.492      
2 O -0.367      
3 C -0.415      
4 C -0.415      
5 H 0.176      
6 H 0.176      
7 H 0.176      
8 H 0.176      


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 -3.046 3.046
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.221 0.000 0.000
y 0.000 -22.640 0.000
z 0.000 0.000 -28.223
Traceless
 xyz
x 4.211 0.000 0.000
y 0.000 2.082 0.000
z 0.000 0.000 -6.293
Polar
3z2-r2-12.585
x2-y21.419
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.781 0.000 0.000
y 0.000 4.764 0.000
z 0.000 0.000 5.200


<r2> (average value of r2) Å2
<r2> 66.378
(<r2>)1/2 8.147