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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: BLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/6-31G
 hartrees
Energy at 0K-191.759177
Energy at 298.15K-191.763221
HF Energy-191.759177
Nuclear repulsion energy106.694339
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 BLYP/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 3062 3038 0.23      
2 A1 1792 1778 219.60      
3 A1 1432 1421 6.23      
4 A1 1033 1025 36.80      
5 A1 1000 993 2.92      
6 A1 673 668 2.82      
7 A2 3137 3113 0.00      
8 A2 1144 1136 0.00      
9 A2 691 686 0.00      
10 B1 3151 3127 8.67      
11 B1 1085 1076 0.31      
12 B1 708 703 2.40      
13 B1 302 299 3.45      
14 B2 3060 3036 3.36      
15 B2 1426 1416 5.97      
16 B2 1065 1057 1.75      
17 B2 960 953 142.41      
18 B2 477 473 0.65      

Unscaled Zero Point Vibrational Energy (zpe) 13098.7 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 12999.1 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 BLYP/6-31G
ABC
0.65699 0.23822 0.18806

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.382
O2 0.000 0.000 1.619
C3 0.000 0.799 -0.876
C4 0.000 -0.799 -0.876
H5 0.917 1.312 -1.184
H6 -0.917 1.312 -1.184
H7 -0.917 -1.312 -1.184
H8 0.917 -1.312 -1.184

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.23701.49071.49072.23962.23962.23962.2396
O21.23702.62032.62033.22813.22813.22813.2281
C31.49072.62031.59831.09501.09502.32242.3224
C41.49072.62031.59832.32242.32241.09501.0950
H52.23963.22811.09502.32241.83433.20182.6243
H62.23963.22811.09502.32241.83432.62433.2018
H72.23963.22812.32241.09503.20182.62431.8343
H82.23963.22812.32241.09502.62433.20181.8343

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.583 C1 C3 H5 119.235
C1 C3 H6 119.235 C1 C4 C3 57.583
C1 C4 H7 119.235 C1 C4 H8 119.235
O2 C1 C3 147.583 O2 C1 C4 147.583
C3 C1 C4 64.833 C3 C4 H7 117.938
C3 C4 H8 117.938 C4 C3 H5 117.938
C4 C3 H6 117.938 H5 C3 H6 113.768
H7 C4 H8 113.768
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.248      
2 O -0.328      
3 C -0.285      
4 C -0.285      
5 H 0.162      
6 H 0.162      
7 H 0.162      
8 H 0.162      


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 -2.897 2.897
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.449 0.000 0.000
y 0.000 -22.726 0.000
z 0.000 0.000 -28.283
Traceless
 xyz
x 4.056 0.000 0.000
y 0.000 2.140 0.000
z 0.000 0.000 -6.196
Polar
3z2-r2-12.392
x2-y21.277
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.647 0.000 0.000
y 0.000 4.782 0.000
z 0.000 0.000 5.572


<r2> (average value of r2) Å2
<r2> 69.671
(<r2>)1/2 8.347