return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: PBEPBE/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/daug-cc-pVTZ
 hartrees
Energy at 0K-340.945062
Energy at 298.15K 
HF Energy-340.945062
Nuclear repulsion energy227.842676
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 PBEPBE/daug-cc-pVTZ
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 3239 3239 0.30      
2 A1 1855 1855 626.12      
3 A1 1615 1615 5.10      
4 A1 1146 1146 118.34      
5 A1 1082 1082 25.39      
6 A1 857 857 37.79      
7 A1 717 717 2.95      
8 A2 793 793 0.00      
9 A2 567 567 0.00      
10 B1 741 741 0.14      
11 B1 684 684 82.03      
12 B1 239 239 0.40      
13 B2 3215 3215 7.63      
14 B2 1313 1313 19.40      
15 B2 1062 1062 76.43      
16 B2 969 969 44.34      
17 B2 859 859 0.85      
18 B2 503 503 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 10727.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10727.5 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 PBEPBE/daug-cc-pVTZ
ABC
0.30818 0.13773 0.09519

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.792
O2 0.000 0.000 1.988
O3 0.000 1.118 -0.025
O4 0.000 -1.118 -0.025
C5 0.000 0.668 -1.335
C6 0.000 -0.668 -1.335
H7 0.000 1.413 -2.119
H8 0.000 -1.413 -2.119

Atom - Atom Distances (Å)
  C1 O2 O3 O4 C5 C6 H7 H8
C11.19611.38421.38422.22962.22963.23603.2360
O21.19612.30212.30213.38983.38984.34354.3435
O31.38422.30212.23551.38582.21512.11533.2854
O41.38422.30212.23552.21511.38583.28542.1153
C52.22963.38981.38582.21511.33571.08182.2240
C62.22963.38982.21511.38581.33572.22401.0818
H73.23604.34352.11533.28541.08182.22402.8270
H83.23604.34353.28542.11532.22401.08182.8270

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 107.203 C1 O4 C6 107.203
O2 C1 O3 126.147 O2 C1 O4 126.147
O3 C1 O4 107.705 O3 C5 C6 108.944
O3 C5 H7 117.482 O4 C6 C5 108.944
O4 C6 H8 117.482 C5 C6 H8 133.574
C6 C5 H7 133.574
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.881      
2 O -0.986      
3 O -0.547      
4 O -0.547      
5 C -0.263      
6 C -0.263      
7 H 0.862      
8 H 0.862      


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 -4.384 4.384
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.438 0.000 0.000
y 0.000 -32.731 0.000
z 0.000 0.000 -34.007
Traceless
 xyz
x -0.069 0.000 0.000
y 0.000 0.992 0.000
z 0.000 0.000 -0.923
Polar
3z2-r2-1.847
x2-y2-0.707
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.581 0.000 0.000
y 0.000 6.947 0.000
z 0.000 0.000 8.927


<r2> (average value of r2) Å2
<r2> 115.962
(<r2>)1/2 10.769