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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: mPW1PW91/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 mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-191.860384
Energy at 298.15K-191.864480
HF Energy-191.860384
Nuclear repulsion energy108.774664
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/aug-cc-pVDZ
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 3144 3013 1.19      
2 A1 1966 1884 356.45      
3 A1 1423 1364 3.94      
4 A1 1079 1034 0.54      
5 A1 1007 965 23.04      
6 A1 743 712 4.75      
7 A2 3233 3099 0.00      
8 A2 1156 1108 0.00      
9 A2 617 592 0.00      
10 B1 3246 3110 1.50      
11 B1 1095 1050 0.06      
12 B1 696 667 1.13      
13 B1 308 295 4.60      
14 B2 3143 3012 2.23      
15 B2 1402 1343 7.78      
16 B2 1064 1020 29.77      
17 B2 953 914 81.13      
18 B2 507 486 1.90      

Unscaled Zero Point Vibrational Energy (zpe) 13391.0 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 12832.6 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/aug-cc-pVDZ
ABC
0.67898 0.24848 0.19631

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/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 1.580
C3 0.000 0.783 -0.859
C4 0.000 -0.783 -0.859
H5 0.918 1.289 -1.159
H6 -0.918 1.289 -1.159
H7 -0.918 -1.289 -1.159
H8 0.918 -1.289 -1.159

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.19791.46781.46782.20912.20912.20912.2091
O21.19792.56192.56193.16353.16353.16353.1635
C31.46782.56191.56691.09031.09032.28662.2866
C41.46782.56191.56692.28662.28661.09031.0903
H52.20913.16351.09032.28661.83633.16532.5782
H62.20913.16351.09032.28661.83632.57823.1653
H72.20913.16352.28661.09033.16532.57821.8363
H82.20913.16352.28661.09032.57823.16531.8363

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.741 C1 C3 H5 118.701
C1 C3 H6 118.701 C1 C4 C3 57.741
C1 C4 H7 118.701 C1 C4 H8 118.701
O2 C1 C3 147.741 O2 C1 C4 147.741
C3 C1 C4 64.517 C3 C4 H7 117.632
C3 C4 H8 117.632 C4 C3 H5 117.632
C4 C3 H6 117.632 H5 C3 H6 114.731
H7 C4 H8 114.731
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.410      
2 O -0.468      
3 C 0.713      
4 C 0.713      
5 H -0.342      
6 H -0.342      
7 H -0.342      
8 H -0.342      


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 -3.059 3.059
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.474 0.000 0.000
y 0.000 -22.941 0.000
z 0.000 0.000 -28.413
Traceless
 xyz
x 4.203 0.000 0.000
y 0.000 2.003 0.000
z 0.000 0.000 -6.206
Polar
3z2-r2-12.411
x2-y21.467
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.499 0.000 0.000
y 0.000 5.883 0.000
z 0.000 0.000 6.722


<r2> (average value of r2) Å2
<r2> 67.627
(<r2>)1/2 8.224