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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-190.661479
Energy at 298.15K-190.665902
HF Energy-190.661479
Nuclear repulsion energy108.619136
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 HF/LANL2DZ
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 3325 2992 0.03      
2 A1 2058 1852 352.30      
3 A1 1595 1435 3.92      
4 A1 1195 1075 24.41      
5 A1 1121 1008 0.44      
6 A1 765 688 21.43      
7 A2 3420 3077 0.00      
8 A2 1277 1149 0.00      
9 A2 813 732 0.00      
10 B1 3432 3088 15.31      
11 B1 1236 1112 0.57      
12 B1 795 716 3.14      
13 B1 393 353 9.13      
14 B2 3317 2985 6.55      
15 B2 1579 1421 14.13      
16 B2 1249 1124 1.44      
17 B2 1108 997 163.74      
18 B2 533 480 7.29      

Unscaled Zero Point Vibrational Energy (zpe) 14604.2 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 13142.3 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 HF/LANL2DZ
ABC
0.67689 0.24736 0.19490

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.380
O2 0.000 0.000 1.587
C3 0.000 0.789 -0.861
C4 0.000 -0.789 -0.861
H5 0.902 1.288 -1.160
H6 -0.902 1.288 -1.160
H7 -0.902 -1.288 -1.160
H8 0.902 -1.288 -1.160

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.20651.47101.47102.20182.20182.20182.2018
O21.20652.57212.57213.16563.16563.16563.1656
C31.47102.57211.57751.07381.07382.28432.2843
C41.47102.57211.57752.28432.28431.07381.0738
H52.20183.16561.07382.28431.80443.14572.5768
H62.20183.16561.07382.28431.80442.57683.1457
H72.20183.16562.28431.07383.14572.57681.8044
H82.20183.16562.28431.07382.57683.14571.8044

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 57.575 C1 C3 H5 118.986
C1 C3 H6 118.986 C1 C4 C3 57.575
C1 C4 H7 118.986 C1 C4 H8 118.986
O2 C1 C3 147.575 O2 C1 C4 147.575
C3 C1 C4 64.851 C3 C4 H7 117.729
C3 C4 H8 117.729 C4 C3 H5 117.729
C4 C3 H6 117.729 H5 C3 H6 114.321
H7 C4 H8 114.321
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.284      
2 O -0.296      
3 C -0.451      
4 C -0.451      
5 H 0.229      
6 H 0.229      
7 H 0.229      
8 H 0.229      


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 -3.633 3.633
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.776 0.000 0.000
y 0.000 -23.032 0.000
z 0.000 0.000 -30.411
Traceless
 xyz
x 4.945 0.000 0.000
y 0.000 3.061 0.000
z 0.000 0.000 -8.007
Polar
3z2-r2-16.013
x2-y21.256
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.396 0.000 0.000
y 0.000 4.590 0.000
z 0.000 0.000 5.438


<r2> (average value of r2) Å2
<r2> 68.323
(<r2>)1/2 8.266