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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: BLYP/3-21G

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/3-21G
 hartrees
Energy at 0K-190.753729
Energy at 298.15K-190.757842
HF Energy-190.753729
Nuclear repulsion energy106.679793
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/3-21G
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 3063 3046 0.26      
2 A1 1810 1800 175.68      
3 A1 1435 1427 9.04      
4 A1 1018 1013 50.15      
5 A1 959 953 0.59      
6 A1 667 663 1.45      
7 A2 3138 3121 0.00      
8 A2 1142 1136 0.00      
9 A2 663 659 0.00      
10 B1 3153 3136 3.83      
11 B1 1094 1088 0.22      
12 B1 702 698 2.67      
13 B1 383 380 1.59      
14 B2 3061 3044 2.04      
15 B2 1426 1419 7.05      
16 B2 1045 1039 0.11      
17 B2 912 907 148.86      
18 B2 494 491 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 13082.2 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 13010.3 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 BLYP/3-21G
ABC
0.65593 0.23795 0.18797

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.389
O2 0.000 0.000 1.617
C3 0.000 0.802 -0.878
C4 0.000 -0.802 -0.878
H5 0.923 1.301 -1.186
H6 -0.923 1.301 -1.186
H7 -0.923 -1.301 -1.186
H8 0.923 -1.301 -1.186

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.22781.49971.49972.24162.24162.24162.2416
O21.22782.62072.62073.22513.22513.22513.2251
C31.49972.62071.60461.09301.09302.31712.3171
C41.49972.62071.60462.31712.31711.09301.0930
H52.24163.22511.09302.31711.84523.18942.6014
H62.24163.22511.09302.31711.84522.60143.1894
H72.24163.22512.31711.09303.18942.60141.8452
H82.24163.22512.31711.09302.60143.18941.8452

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.657 C1 C3 H5 118.836
C1 C3 H6 118.836 C1 C4 C3 57.657
C1 C4 H7 118.836 C1 C4 H8 118.836
O2 C1 C3 147.657 O2 C1 C4 147.657
C3 C1 C4 64.687 C3 C4 H7 117.127
C3 C4 H8 117.127 C4 C3 H5 117.127
C4 C3 H6 117.127 H5 C3 H6 115.150
H7 C4 H8 115.150
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.298      
2 O -0.393      
3 C -0.388      
4 C -0.388      
5 H 0.218      
6 H 0.218      
7 H 0.218      
8 H 0.218      


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 -2.394 2.394
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.482 0.000 0.000
y 0.000 -22.816 0.000
z 0.000 0.000 -27.579
Traceless
 xyz
x 3.716 0.000 0.000
y 0.000 1.714 0.000
z 0.000 0.000 -5.430
Polar
3z2-r2-10.860
x2-y21.335
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.442 0.000 0.000
y 0.000 4.509 0.000
z 0.000 0.000 5.012


<r2> (average value of r2) Å2
<r2> 69.562
(<r2>)1/2 8.340