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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: mPW1PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/STO-3G
 hartrees
Energy at 0K-189.385354
Energy at 298.15K-189.389466
HF Energy-189.385354
Nuclear repulsion energy106.708397
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 mPW1PW91/STO-3G
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 3422 3007 11.23      
2 A1 2069 1818 50.85      
3 A1 1591 1398 2.46      
4 A1 1227 1079 4.34      
5 A1 1143 1004 4.86      
6 A1 830 730 1.20      
7 A2 3566 3134 0.00      
8 A2 1277 1122 0.00      
9 A2 755 664 0.00      
10 B1 3572 3140 4.18      
11 B1 1175 1033 0.33      
12 B1 799 702 1.49      
13 B1 364 320 0.86      
14 B2 3417 3003 13.15      
15 B2 1578 1387 2.18      
16 B2 1221 1073 3.85      
17 B2 1034 909 73.54      
18 B2 506 445 6.58      

Unscaled Zero Point Vibrational Energy (zpe) 14772.0 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 12983.1 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 mPW1PW91/STO-3G
ABC
0.68168 0.23346 0.18702

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.396
O2 0.000 0.000 1.633
C3 0.000 0.781 -0.887
C4 0.000 -0.781 -0.887
H5 0.918 1.287 -1.200
H6 -0.918 1.287 -1.200
H7 -0.918 -1.287 -1.200
H8 0.918 -1.287 -1.200

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.23671.50211.50212.24712.24712.24712.2471
O21.23672.63802.63803.24473.24473.24473.2447
C31.50212.63801.56251.09451.09452.28502.2850
C41.50212.63801.56252.28502.28501.09451.0945
H52.24713.24471.09452.28501.83663.16282.5749
H62.24713.24471.09452.28501.83662.57493.1628
H72.24713.24472.28501.09453.16282.57491.8366
H82.24713.24472.28501.09452.57493.16281.8366

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 58.660 C1 C3 H5 119.029
C1 C3 H6 119.029 C1 C4 C3 58.660
C1 C4 H7 119.029 C1 C4 H8 119.029
O2 C1 C3 148.660 O2 C1 C4 148.660
C3 C1 C4 62.680 C3 C4 H7 117.549
C3 C4 H8 117.549 C4 C3 H5 117.549
C4 C3 H6 117.549 H5 C3 H6 114.080
H7 C4 H8 114.080
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.151      
2 O -0.151      
3 C -0.194      
4 C -0.194      
5 H 0.097      
6 H 0.097      
7 H 0.097      
8 H 0.097      


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 -1.587 1.587
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.070 0.000 0.000
y 0.000 -21.582 0.000
z 0.000 0.000 -24.683
Traceless
 xyz
x 3.062 0.000 0.000
y 0.000 0.795 0.000
z 0.000 0.000 -3.857
Polar
3z2-r2-7.713
x2-y21.512
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.872 0.000 0.000
y 0.000 2.318 0.000
z 0.000 0.000 3.267


<r2> (average value of r2) Å2
<r2> 68.610
(<r2>)1/2 8.283