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: HF/aug-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 HF/aug-cc-pVTZ
 hartrees
Energy at 0K-339.472608
Energy at 298.15K 
HF Energy-339.472608
Nuclear repulsion energy233.515249
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/aug-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 3479 3167 0.31 80.72 0.11 0.19
2 A1 2069 1884 940.47 8.90 0.44 0.61
3 A1 1836 1672 9.01 66.46 0.01 0.03
4 A1 1307 1190 218.53 3.65 0.39 0.56
5 A1 1225 1115 37.01 14.95 0.24 0.39
6 A1 1012 921 23.78 8.30 0.09 0.17
7 A1 810 738 7.85 4.24 0.30 0.47
8 A2 988 899 0.00 6.83 0.75 0.86
9 A2 625 569 0.00 2.08 0.75 0.86
10 B1 902 821 8.28 0.55 0.75 0.86
11 B1 837 762 110.19 0.01 0.75 0.86
12 B1 251 229 0.51 0.00 0.75 0.86
13 B2 3450 3141 12.61 44.34 0.75 0.86
14 B2 1511 1375 61.30 0.00 0.75 0.86
15 B2 1234 1123 134.27 0.03 0.75 0.86
16 B2 1159 1055 8.97 2.98 0.75 0.86
17 B2 983 895 4.02 2.09 0.75 0.86
18 B2 583 531 0.02 1.77 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12130.8 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 11043.8 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/aug-cc-pVTZ
ABC
0.32709 0.14404 0.10000

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.771
O2 0.000 0.000 1.937
O3 0.000 1.082 -0.013
O4 0.000 -1.082 -0.013
C5 0.000 0.653 -1.312
C6 0.000 -0.653 -1.312
H7 0.000 1.386 -2.083
H8 0.000 -1.386 -2.083

Atom - Atom Distances (Å)
  C1 O2 O3 O4 C5 C6 H7 H8
C11.16601.33601.33602.18342.18343.17313.1731
O21.16602.23002.23003.31443.31444.25254.2525
O31.33602.23002.16321.36802.16742.09243.2210
O41.33602.23002.16322.16741.36803.22102.0924
C52.18343.31441.36802.16741.30661.06362.1802
C62.18343.31442.16741.36801.30662.18021.0636
H73.17314.25252.09243.22101.06362.18022.7721
H83.17314.25253.22102.09242.18021.06362.7721

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 107.700 C1 O4 C6 107.700
O2 C1 O3 125.945 O2 C1 O4 125.945
O3 C1 O4 108.110 O3 C5 C6 108.245
O3 C5 H7 118.208 O4 C6 C5 108.245
O4 C6 H8 118.208 C5 C6 H8 133.547
C6 C5 H7 133.547
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.526      
2 O -0.584      
3 O -0.255      
4 O -0.255      
5 C -0.342      
6 C -0.342      
7 H 0.626      
8 H 0.626      


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 -5.081 5.081
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.071 0.000 0.000
y 0.000 -32.569 0.000
z 0.000 0.000 -34.339
Traceless
 xyz
x 0.383 0.000 0.000
y 0.000 1.136 0.000
z 0.000 0.000 -1.519
Polar
3z2-r2-3.038
x2-y2-0.501
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.135 0.000 0.000
y 0.000 6.177 0.000
z 0.000 0.000 7.184


<r2> (average value of r2) Å2
<r2> 111.429
(<r2>)1/2 10.556