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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: B3PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-191.835651
Energy at 298.15K-191.839721
HF Energy-191.835651
Nuclear repulsion energy108.579134
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 B3PW91/aug-cc-pVDZ
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 3126 3015 1.05      
2 A1 1945 1876 350.99      
3 A1 1414 1364 4.13      
4 A1 1069 1031 0.74      
5 A1 999 963 23.27      
6 A1 735 709 4.23      
7 A2 3214 3100 0.00      
8 A2 1148 1108 0.00      
9 A2 614 593 0.00      
10 B1 3226 3112 1.72      
11 B1 1087 1049 0.06      
12 B1 692 668 1.18      
13 B1 303 292 4.39      
14 B2 3125 3014 2.43      
15 B2 1394 1344 7.50      
16 B2 1054 1017 28.17      
17 B2 944 911 82.85      
18 B2 503 485 1.64      

Unscaled Zero Point Vibrational Energy (zpe) 13295.8 cm-1
Scaled (by 0.9646) Zero Point Vibrational Energy (zpe) 12825.2 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 B3PW91/aug-cc-pVDZ
ABC
0.67651 0.24760 0.19558

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVDZ

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 1.583
C3 0.000 0.785 -0.860
C4 0.000 -0.785 -0.860
H5 0.919 1.292 -1.161
H6 -0.919 1.292 -1.161
H7 -0.919 -1.292 -1.161
H8 0.919 -1.292 -1.161

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.20051.47021.47022.21312.21312.21312.2131
O21.20052.56652.56653.16963.16963.16963.1696
C31.47022.56651.56991.09191.09192.29082.2908
C41.47022.56651.56992.29082.29081.09191.0919
H52.21313.16961.09192.29081.83823.17062.5834
H62.21313.16961.09192.29081.83822.58343.1706
H72.21313.16962.29081.09193.17062.58341.8382
H82.21313.16962.29081.09192.58343.17061.8382

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.730 C1 C3 H5 118.750
C1 C3 H6 118.750 C1 C4 C3 57.730
C1 C4 H7 118.750 C1 C4 H8 118.750
O2 C1 C3 147.730 O2 C1 C4 147.730
C3 C1 C4 64.539 C3 C4 H7 117.652
C3 C4 H8 117.652 C4 C3 H5 117.652
C4 C3 H6 117.652 H5 C3 H6 114.651
H7 C4 H8 114.651
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.408      
2 O -0.447      
3 C 0.764      
4 C 0.764      
5 H -0.372      
6 H -0.372      
7 H -0.372      
8 H -0.372      


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 -3.039 3.039
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.480 0.000 0.000
y 0.000 -22.952 0.000
z 0.000 0.000 -28.392
Traceless
 xyz
x 4.192 0.000 0.000
y 0.000 1.984 0.000
z 0.000 0.000 -6.176
Polar
3z2-r2-12.352
x2-y21.473
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.532 0.000 0.000
y 0.000 5.937 0.000
z 0.000 0.000 6.781


<r2> (average value of r2) Å2
<r2> 67.818
(<r2>)1/2 8.235