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All results from a given calculation for C3H4O (Cyclopropanone)

using model chemistry: BLYP/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 BLYP/STO-3G
 hartrees
Energy at 0K-189.318031
Energy at 298.15K-189.321926
HF Energy-189.318031
Nuclear repulsion energy104.903045
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 BLYP/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 3261 3017 7.41      
2 A1 1904 1761 47.33      
3 A1 1529 1414 2.12      
4 A1 1136 1051 4.84      
5 A1 1066 986 4.20      
6 A1 759 702 0.27      
7 A2 3401 3147 0.00      
8 A2 1220 1128 0.00      
9 A2 711 658 0.00      
10 B1 3409 3154 0.42      
11 B1 1112 1029 0.23      
12 B1 763 706 1.16      
13 B1 325 301 0.42      
14 B2 3259 3015 5.90      
15 B2 1525 1411 0.73      
16 B2 1132 1047 1.61      
17 B2 927 858 77.70      
18 B2 469 434 3.50      

Unscaled Zero Point Vibrational Energy (zpe) 13953.3 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 12909.6 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 BLYP/STO-3G
ABC
0.66000 0.22514 0.18033

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.405
O2 0.000 0.000 1.663
C3 0.000 0.796 -0.904
C4 0.000 -0.796 -0.904
H5 0.928 1.306 -1.223
H6 -0.928 1.306 -1.223
H7 -0.928 -1.306 -1.223
H8 0.928 -1.306 -1.223

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8
C11.25761.53181.53182.28442.28442.28442.2844
O21.25762.68702.68703.30103.30103.30103.3010
C31.53182.68701.59161.10591.10592.31942.3194
C41.53182.68701.59162.31942.31941.10591.1059
H52.28443.30101.10592.31941.85523.20362.6118
H62.28443.30101.10592.31941.85522.61183.2036
H72.28443.30102.31941.10593.20362.61181.8552
H82.28443.30102.31941.10592.61183.20361.8552

picture of Cyclopropanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 58.700 C1 C3 H5 119.130
C1 C3 H6 119.130 C1 C4 C3 58.700
C1 C4 H7 119.130 C1 C4 H8 119.130
O2 C1 C3 148.700 O2 C1 C4 148.700
C3 C1 C4 62.600 C3 C4 H7 117.470
C3 C4 H8 117.470 C4 C3 H5 117.470
C4 C3 H6 117.470 H5 C3 H6 114.024
H7 C4 H8 114.024
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.134      
2 O -0.131      
3 C -0.177      
4 C -0.177      
5 H 0.088      
6 H 0.088      
7 H 0.088      
8 H 0.088      


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 -1.411 1.411
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.199 0.000 0.000
y 0.000 -21.657 0.000
z 0.000 0.000 -24.388
Traceless
 xyz
x 2.823 0.000 0.000
y 0.000 0.636 0.000
z 0.000 0.000 -3.460
Polar
3z2-r2-6.920
x2-y21.458
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.953 0.000 0.000
y 0.000 2.490 0.000
z 0.000 0.000 3.470


<r2> (average value of r2) Å2
<r2> 70.545
(<r2>)1/2 8.399