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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-191.846023
Energy at 298.15K-191.850146
HF Energy-191.846023
Nuclear repulsion energy108.864764
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 mPW1PW91/6-31+G**
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 3155 3003 1.73      
2 A1 1978 1883 362.88      
3 A1 1445 1375 5.21      
4 A1 1082 1030 1.81      
5 A1 1030 981 32.57      
6 A1 745 709 5.53      
7 A2 3240 3084 0.00      
8 A2 1170 1114 0.00      
9 A2 641 610 0.00      
10 B1 3252 3095 0.71      
11 B1 1113 1059 0.41      
12 B1 710 676 1.86      
13 B1 314 299 5.49      
14 B2 3155 3003 1.96      
15 B2 1423 1354 8.17      
16 B2 1086 1034 19.11      
17 B2 980 933 107.63      
18 B2 508 484 1.98      

Unscaled Zero Point Vibrational Energy (zpe) 13513.7 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 12862.3 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 mPW1PW91/6-31+G**
ABC
0.68137 0.24865 0.19648

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.381
O2 0.000 0.000 1.581
C3 0.000 0.783 -0.858
C4 0.000 -0.783 -0.858
H5 0.914 1.287 -1.159
H6 -0.914 1.287 -1.159
H7 -0.914 -1.287 -1.159
H8 0.914 -1.287 -1.159

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.20001.46541.46542.20542.20542.20542.2054
O21.20002.56142.56143.16233.16233.16233.1623
C31.46542.56141.56511.08661.08662.28222.2822
C41.46542.56141.56512.28222.28221.08661.0866
H52.20543.16231.08662.28221.82853.15682.5733
H62.20543.16231.08662.28221.82852.57333.1568
H72.20543.16232.28221.08663.15682.57331.8285
H82.20543.16232.28221.08662.57333.15681.8285

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.723 C1 C3 H5 118.827
C1 C3 H6 118.827 C1 C4 C3 57.723
C1 C4 H7 118.827 C1 C4 H8 118.827
O2 C1 C3 147.723 O2 C1 C4 147.723
C3 C1 C4 64.554 C3 C4 H7 117.639
C3 C4 H8 117.639 C4 C3 H5 117.639
C4 C3 H6 117.639 H5 C3 H6 114.570
H7 C4 H8 114.570
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.122      
2 O -0.433      
3 C -0.244      
4 C -0.244      
5 H 0.200      
6 H 0.200      
7 H 0.200      
8 H 0.200      


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 -3.114 3.114
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.397 0.000 0.000
y 0.000 -22.877 0.000
z 0.000 0.000 -28.552
Traceless
 xyz
x 4.318 0.000 0.000
y 0.000 2.098 0.000
z 0.000 0.000 -6.415
Polar
3z2-r2-12.831
x2-y21.480
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.059 0.000 0.000
y 0.000 5.435 0.000
z 0.000 0.000 6.342


<r2> (average value of r2) Å2
<r2> 67.551
(<r2>)1/2 8.219