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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-191.812458
Energy at 298.15K-191.816423
HF Energy-191.812458
Nuclear repulsion energy107.438356
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 3045 3020 0.08      
2 A1 1863 1848 258.03      
3 A1 1417 1405 3.92      
4 A1 1019 1011 4.38      
5 A1 992 984 23.31      
6 A1 693 688 2.11      
7 A2 3115 3090 0.00      
8 A2 1140 1131 0.00      
9 A2 624 619 0.00      
10 B1 3128 3103 7.46      
11 B1 1077 1068 0.29      
12 B1 690 684 1.60      
13 B1 288 286 4.00      
14 B2 3045 3020 5.76      
15 B2 1406 1394 2.67      
16 B2 1031 1023 15.22      
17 B2 917 909 111.68      
18 B2 484 480 0.66      

Unscaled Zero Point Vibrational Energy (zpe) 12986.4 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 12881.2 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
0.66446 0.24185 0.19100

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 0.409
O2 0.000 0.000 1.687
C3 0.000 0.803 -0.845
C4 0.000 -0.803 -0.845
H5 0.809 0.726 -1.452
H6 -0.809 0.726 -1.452
H7 -0.809 -0.726 -1.452
H8 0.809 -0.726 -1.452

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.27711.48951.48952.15592.15592.15592.1559
O21.27712.65592.65593.32173.32173.32173.3217
C31.48952.65591.60581.01461.01461.83341.8334
C41.48952.65591.60581.83341.83341.01461.0146
H52.15593.32171.01461.83341.61852.17461.4523
H62.15593.32171.01461.83341.61851.45232.1746
H72.15593.32171.83341.01462.17461.45231.6185
H82.15593.32171.83341.01461.45232.17461.6185

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.382 C1 C3 H5 117.595
C1 C3 H6 117.595 C1 C4 C3 57.382
C1 C4 H7 117.595 C1 C4 H8 117.595
O2 C1 C3 147.382 O2 C1 C4 147.382
C3 C1 C4 65.236 C3 C4 H7 85.662
C3 C4 H8 85.662 C4 C3 H5 85.662
C4 C3 H6 85.662 H5 C3 H6 105.811
H7 C4 H8 105.811
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 0.386      
2 O -0.373      
3 C -0.340      
4 C -0.340      
5 H 0.167      
6 H 0.167      
7 H 0.167      
8 H 0.167      


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 -2.651 2.651
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.259 0.000 0.000
y 0.000 -22.640 0.000
z 0.000 0.000 -27.418
Traceless
 xyz
x 3.770 0.000 0.000
y 0.000 1.698 0.000
z 0.000 0.000 -5.469
Polar
3z2-r2-10.937
x2-y21.382
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.779 0.000 0.000
y 0.000 4.915 0.000
z 0.000 0.000 5.519


<r2> (average value of r2) Å2
<r2> 68.693
(<r2>)1/2 8.288