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-pVDZ

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-pVDZ
 hartrees
Energy at 0K-340.865081
Energy at 298.15K 
HF Energy-340.865081
Nuclear repulsion energy226.985537
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-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3255 3255 0.29      
2 A1 1848 1848 618.95      
3 A1 1618 1618 5.14      
4 A1 1141 1141 116.28      
5 A1 1077 1077 20.17      
6 A1 854 854 37.24      
7 A1 713 713 2.62      
8 A2 775 775 0.00      
9 A2 564 564 0.00      
10 B1 734 734 0.29      
11 B1 677 677 82.09      
12 B1 241 241 0.43      
13 B2 3229 3229 8.02      
14 B2 1304 1304 20.21      
15 B2 1057 1057 74.26      
16 B2 972 972 43.34      
17 B2 860 860 0.60      
18 B2 497 497 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 10708.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10708.1 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-pVDZ
ABC
0.30553 0.13681 0.09450

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.793
O2 0.000 0.000 1.996
O3 0.000 1.122 -0.025
O4 0.000 -1.122 -0.025
C5 0.000 0.672 -1.339
C6 0.000 -0.672 -1.339
H7 0.000 1.422 -2.128
H8 0.000 -1.422 -2.128

Atom - Atom Distances (Å)
  C1 O2 O3 O4 C5 C6 H7 H8
C11.20311.38771.38772.23522.23523.24833.2483
O21.20312.31072.31073.40193.40194.36184.3618
O31.38772.31072.24341.38942.22412.12463.3009
O41.38772.31072.24342.22411.38943.30092.1246
C52.23523.40191.38942.22411.34451.08842.2382
C62.23523.40192.22411.38941.34452.23821.0884
H73.24834.36182.12463.30091.08842.23822.8450
H83.24834.36183.30092.12462.23821.08842.8450

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 107.196 C1 O4 C6 107.196
O2 C1 O3 126.071 O2 C1 O4 126.071
O3 C1 O4 107.858 O3 C5 C6 108.875
O3 C5 H7 117.548 O4 C6 C5 108.875
O4 C6 H8 117.548 C5 C6 H8 133.577
C6 C5 H7 133.577
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.442      
2 O -1.024      
3 O -0.316      
4 O -0.316      
5 C 1.521      
6 C 1.521      
7 H -0.914      
8 H -0.914      


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 -4.427 4.427
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.604 0.000 0.000
y 0.000 -32.774 0.000
z 0.000 0.000 -34.040
Traceless
 xyz
x -0.197 0.000 0.000
y 0.000 1.048 0.000
z 0.000 0.000 -0.851
Polar
3z2-r2-1.703
x2-y2-0.830
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.614 0.000 0.000
y 0.000 7.023 0.000
z 0.000 0.000 9.066


<r2> (average value of r2) Å2
<r2> 116.723
(<r2>)1/2 10.804