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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: BLYP/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-191.891461
Energy at 298.15K-191.895429
HF Energy-191.891461
Nuclear repulsion energy108.046774
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/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3035 3026 0.21      
2 A1 1840 1834 306.99      
3 A1 1393 1389 4.47      
4 A1 1010 1007 8.46      
5 A1 968 965 20.70      
6 A1 683 681 1.51      
7 A2 3107 3097 0.00      
8 A2 1128 1125 0.00      
9 A2 620 618 0.00      
10 B1 3120 3110 4.12      
11 B1 1068 1065 0.03      
12 B1 683 681 1.03      
13 B1 280 279 3.23      
14 B2 3035 3026 4.67      
15 B2 1382 1378 4.46      
16 B2 1020 1016 11.22      
17 B2 906 903 111.34      
18 B2 488 486 0.42      

Unscaled Zero Point Vibrational Energy (zpe) 12880.5 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 12841.9 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 BLYP/cc-pVTZ
ABC
0.66659 0.24563 0.19342

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.384
O2 0.000 0.000 1.591
C3 0.000 0.794 -0.863
C4 0.000 -0.794 -0.863
H5 0.916 1.298 -1.169
H6 -0.916 1.298 -1.169
H7 -0.916 -1.298 -1.169
H8 0.916 -1.298 -1.169

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.20701.47801.47802.22142.22142.22142.2214
O21.20702.57902.57903.18433.18433.18433.1843
C31.47802.57901.58711.08961.08962.30382.3038
C41.47802.57901.58712.30382.30381.08961.0896
H52.22143.18431.08962.30381.83233.17752.5960
H62.22143.18431.08962.30381.83232.59603.1775
H72.22143.18432.30381.08963.17752.59601.8323
H82.22143.18432.30381.08962.59603.17751.8323

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.526 C1 C3 H5 119.031
C1 C3 H6 119.031 C1 C4 C3 57.526
C1 C4 H7 119.031 C1 C4 H8 119.031
O2 C1 C3 147.526 O2 C1 C4 147.526
C3 C1 C4 64.948 C3 C4 H7 117.578
C3 C4 H8 117.578 C4 C3 H5 117.578
C4 C3 H6 117.578 H5 C3 H6 114.449
H7 C4 H8 114.449
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.225      
2 O -0.208      
3 C -0.222      
4 C -0.222      
5 H 0.107      
6 H 0.107      
7 H 0.107      
8 H 0.107      


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 -2.766 2.766
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.829 0.000 0.000
y 0.000 -23.307 0.000
z 0.000 0.000 -28.189
Traceless
 xyz
x 3.919 0.000 0.000
y 0.000 1.702 0.000
z 0.000 0.000 -5.621
Polar
3z2-r2-11.243
x2-y21.478
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.347 0.000 0.000
y 0.000 5.724 0.000
z 0.000 0.000 6.364


<r2> (average value of r2) Å2
<r2> 68.451
(<r2>)1/2 8.274