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

using model chemistry: B3LYP/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/CEP-31G*
 hartrees
Energy at 0K-66.057322
Energy at 298.15K 
HF Energy-66.057322
Nuclear repulsion energy118.378531
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 B3LYP/CEP-31G*
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 3316 3202 0.14      
2 A1 1913 1847 676.91      
3 A1 1676 1618 3.32      
4 A1 1181 1140 157.25      
5 A1 1111 1073 18.69      
6 A1 888 858 25.36      
7 A1 726 701 4.50      
8 A2 789 762 0.00      
9 A2 554 535 0.00      
10 B1 758 732 0.55      
11 B1 711 687 119.93      
12 B1 233 225 0.97      
13 B2 3287 3174 8.70      
14 B2 1347 1301 37.69      
15 B2 1090 1053 102.86      
16 B2 1020 985 25.55      
17 B2 883 852 0.62      
18 B2 513 495 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 10997.0 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 10619.8 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 B3LYP/CEP-31G*
ABC
0.30433 0.13662 0.09429

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

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 1.995
O3 0.000 1.121 -0.020
O4 0.000 -1.121 -0.020
C5 0.000 0.679 -1.344
C6 0.000 -0.679 -1.344
H7 0.000 1.435 -2.123
H8 0.000 -1.435 -2.123

Atom - Atom Distances (Å)
  C1 O2 O3 O4 C5 C6 H7 H8
C11.20621.38251.38252.23842.23843.24683.2468
O21.20622.30632.30633.40743.40744.36154.3615
O31.38252.30632.24151.39522.23382.12633.3097
O41.38252.30632.24152.23381.39523.30972.1263
C52.23843.40741.39522.23381.35781.08602.2531
C62.23843.40742.23381.39521.35782.25311.0860
H73.24684.36152.12633.30971.08602.25312.8701
H83.24684.36153.30972.12632.25311.08602.8701

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 107.378 C1 O4 C6 107.378
O2 C1 O3 125.841 O2 C1 O4 125.841
O3 C1 O4 108.317 O3 C5 C6 108.463
O3 C5 H7 117.408 O4 C6 C5 108.463
O4 C6 H8 117.408 C5 C6 H8 134.128
C6 C5 H7 134.128
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.135      
2 O -0.070      
3 O -0.037      
4 O -0.037      
5 C -0.172      
6 C -0.172      
7 H 0.311      
8 H 0.311      


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 -4.947 4.947
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.119 0.000 0.000
y 0.000 -32.456 0.000
z 0.000 0.000 -32.956
Traceless
 xyz
x -0.413 0.000 0.000
y 0.000 0.581 0.000
z 0.000 0.000 -0.168
Polar
3z2-r2-0.336
x2-y2-0.663
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.057 0.000 0.000
y 0.000 5.860 0.000
z 0.000 0.000 7.245


<r2> (average value of r2) Å2
<r2> 93.239
(<r2>)1/2 9.656