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All results from a given calculation for C3H2O3 (vinylene carbonate)

using model chemistry: HF/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 HF/STO-3G
 hartrees
Energy at 0K-334.886394
Energy at 298.15K 
HF Energy-334.886394
Nuclear repulsion energy225.833529
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/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 3797 3100 19.77 52.08 0.12 0.22
2 A1 2174 1775 264.71 9.00 0.39 0.56
3 A1 1982 1619 2.09 14.66 0.09 0.16
4 A1 1360 1111 75.00 4.56 0.48 0.65
5 A1 1285 1049 0.94 18.94 0.53 0.69
6 A1 984 803 20.35 7.07 0.17 0.29
7 A1 780 637 2.57 3.60 0.49 0.66
8 A2 1061 867 0.00 0.42 0.75 0.86
9 A2 589 481 0.00 4.30 0.75 0.86
10 B1 897 733 11.80 3.13 0.75 0.86
11 B1 732 598 41.23 1.40 0.75 0.86
12 B1 232 190 0.86 0.03 0.75 0.86
13 B2 3751 3062 82.50 45.27 0.75 0.86
14 B2 1602 1308 16.27 0.31 0.75 0.86
15 B2 1369 1118 14.67 2.13 0.75 0.86
16 B2 1213 991 47.71 0.21 0.75 0.86
17 B2 1009 824 6.34 3.23 0.75 0.86
18 B2 533 435 2.77 2.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12674.6 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 10348.8 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/STO-3G
ABC
0.29883 0.13660 0.09375

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.789
O2 0.000 0.000 1.998
O3 0.000 1.149 -0.022
O4 0.000 -1.149 -0.022
C5 0.000 0.657 -1.339
C6 0.000 -0.657 -1.339
H7 0.000 1.378 -2.145
H8 0.000 -1.378 -2.145

Atom - Atom Distances (Å)
  C1 O2 O3 O4 C5 C6 H7 H8
C11.20851.40641.40642.22742.22743.24153.2415
O21.20852.32362.32363.40083.40084.36574.3657
O31.40642.32362.29751.40552.23522.13503.3001
O41.40642.32362.29752.23521.40553.30012.1350
C52.22743.40081.40552.23521.31471.08122.1892
C62.22743.40082.23521.40551.31472.18921.0812
H73.24154.36572.13503.30011.08122.18922.7565
H83.24154.36573.30012.13502.18921.08122.7565

picture of vinylene carbonate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O3 C5 104.769 C1 O4 C6 104.769
O2 C1 O3 125.233 O2 C1 O4 125.233
O3 C1 O4 109.533 O3 C5 C6 110.464
O3 C5 H7 117.717 O4 C6 C5 110.464
O4 C6 H8 117.717 C5 C6 H8 131.819
C6 C5 H7 131.819
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.426      
2 O -0.249      
3 O -0.219      
4 O -0.219      
5 C 0.025      
6 C 0.025      
7 H 0.106      
8 H 0.106      


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 -3.464 3.464
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.330 0.000 0.000
y 0.000 -31.617 0.000
z 0.000 0.000 -30.845
Traceless
 xyz
x 1.901 0.000 0.000
y 0.000 -1.529 0.000
z 0.000 0.000 -0.371
Polar
3z2-r2-0.742
x2-y22.287
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.724 0.000 0.000
y 0.000 3.336 0.000
z 0.000 0.000 4.788


<r2> (average value of r2) Å2
<r2> 115.593
(<r2>)1/2 10.751