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

using model chemistry: HF/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-64.511449
Energy at 298.15K 
HF Energy-64.511449
Nuclear repulsion energy118.643878
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/CEP-121G
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 3516 3208 0.12 89.21 0.12 0.21
2 A1 1933 1764 836.04 10.77 0.48 0.65
3 A1 1776 1620 0.00 43.89 0.06 0.11
4 A1 1267 1157 131.21 11.26 0.63 0.77
5 A1 1162 1061 99.88 11.57 0.25 0.40
6 A1 929 848 26.04 11.62 0.12 0.21
7 A1 765 698 7.97 6.32 0.42 0.59
8 A2 971 886 0.00 6.85 0.75 0.86
9 A2 585 534 0.00 4.55 0.75 0.86
10 B1 860 785 45.93 0.60 0.75 0.86
11 B1 796 726 112.21 2.32 0.75 0.86
12 B1 240 219 2.58 0.02 0.75 0.86
13 B2 3481 3176 22.76 50.65 0.75 0.86
14 B2 1435 1310 31.53 0.01 0.75 0.86
15 B2 1140 1041 182.06 0.40 0.75 0.86
16 B2 1106 1009 5.15 3.69 0.75 0.86
17 B2 960 876 2.21 3.83 0.75 0.86
18 B2 532 486 0.12 3.69 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11726.8 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 10700.7 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/CEP-121G
ABC
0.31341 0.13483 0.09427

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.803
O2 0.000 0.000 2.003
O3 0.000 1.107 -0.019
O4 0.000 -1.107 -0.019
C5 0.000 0.664 -1.358
C6 0.000 -0.664 -1.358
H7 0.000 1.408 -2.118
H8 0.000 -1.408 -2.118

Atom - Atom Distances (Å)
  C1 O2 O3 O4 C5 C6 H7 H8
C11.20021.37861.37862.26092.26093.24253.2425
O21.20022.30502.30503.42633.42634.35494.3549
O31.37862.30502.21411.41082.22072.12073.2760
O41.37862.30502.21412.22071.41083.27602.1207
C52.26093.42631.41082.22071.32841.06322.2070
C62.26093.42632.22071.41081.32842.20701.0632
H73.24254.35492.12073.27601.06322.20702.8158
H83.24254.35493.27602.12072.20701.06322.8158

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 108.287 C1 O4 C6 108.287
O2 C1 O3 126.580 O2 C1 O4 126.580
O3 C1 O4 106.840 O3 C5 C6 108.293
O3 C5 H7 117.319 O4 C6 C5 108.293
O4 C6 H8 117.319 C5 C6 H8 134.388
C6 C5 H7 134.388
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.340      
2 O -0.196      
3 O -0.321      
4 O -0.321      
5 C 0.003      
6 C 0.003      
7 H 0.245      
8 H 0.245      


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 -6.052 6.052
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.676 0.000 0.000
y 0.000 -35.540 0.000
z 0.000 0.000 -34.568
Traceless
 xyz
x 1.378 0.000 0.000
y 0.000 -1.418 0.000
z 0.000 0.000 0.040
Polar
3z2-r20.081
x2-y21.864
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.928 0.000 0.000
y 0.000 5.534 0.000
z 0.000 0.000 6.752


<r2> (average value of r2) Å2
<r2> 94.194
(<r2>)1/2 9.705