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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-191.854868
Energy at 298.15K-191.858987
HF Energy-191.854868
Nuclear repulsion energy109.227372
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 B1B95/6-311G**
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 3131 3006 0.85      
2 A1 1979 1900 331.08      
3 A1 1427 1370 5.62      
4 A1 1080 1037 0.65      
5 A1 1015 974 31.56      
6 A1 752 722 5.85      
7 A2 3212 3084 0.00      
8 A2 1162 1116 0.00      
9 A2 615 591 0.00      
10 B1 3225 3097 2.68      
11 B1 1101 1057 0.26      
12 B1 701 673 1.56      
13 B1 320 307 3.94      
14 B2 3130 3005 2.43      
15 B2 1405 1349 8.14      
16 B2 1068 1026 25.32      
17 B2 960 921 112.20      
18 B2 515 495 1.60      

Unscaled Zero Point Vibrational Energy (zpe) 13399.0 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 12864.4 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 B1B95/6-311G**
ABC
0.68603 0.25018 0.19775

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.383
O2 0.000 0.000 1.575
C3 0.000 0.780 -0.856
C4 0.000 -0.780 -0.856
H5 0.912 1.282 -1.157
H6 -0.912 1.282 -1.157
H7 -0.912 -1.282 -1.157
H8 0.912 -1.282 -1.157

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.19161.46391.46392.20192.20192.20192.2019
O21.19162.55262.55263.15273.15273.15273.1527
C31.46392.55261.55951.08401.08402.27472.2747
C41.46392.55261.55952.27472.27471.08401.0840
H52.20193.15271.08402.27471.82413.14692.5643
H62.20193.15271.08402.27471.82412.56433.1469
H72.20193.15272.27471.08403.14692.56431.8241
H82.20193.15272.27471.08402.56433.14691.8241

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.815 C1 C3 H5 118.830
C1 C3 H6 118.830 C1 C4 C3 57.815
C1 C4 H7 118.830 C1 C4 H8 118.830
O2 C1 C3 147.815 O2 C1 C4 147.815
C3 C1 C4 64.370 C3 C4 H7 117.610
C3 C4 H8 117.610 C4 C3 H5 117.610
C4 C3 H6 117.610 H5 C3 H6 114.568
H7 C4 H8 114.568
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.222      
2 O -0.260      
3 C -0.307      
4 C -0.307      
5 H 0.163      
6 H 0.163      
7 H 0.163      
8 H 0.163      


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 -2.764 2.764
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.253 0.000 0.000
y 0.000 -22.749 0.000
z 0.000 0.000 -27.757
Traceless
 xyz
x 4.000 0.000 0.000
y 0.000 1.756 0.000
z 0.000 0.000 -5.756
Polar
3z2-r2-11.512
x2-y21.497
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.874 0.000 0.000
y 0.000 5.055 0.000
z 0.000 0.000 5.685


<r2> (average value of r2) Å2
<r2> 67.005
(<r2>)1/2 8.186