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: PBE1PBE/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 PBE1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-340.936441
Energy at 298.15K 
HF Energy-340.936441
Nuclear repulsion energy230.647643
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 PBE1PBE/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 3331 3203 0.69      
2 A1 1942 1867 719.75      
3 A1 1693 1627 6.19      
4 A1 1210 1163 167.02      
5 A1 1135 1091 10.18      
6 A1 923 888 31.41      
7 A1 751 722 3.93      
8 A2 855 822 0.00      
9 A2 590 567 0.00      
10 B1 795 765 1.20      
11 B1 733 704 89.95      
12 B1 246 237 0.39      
13 B2 3305 3178 10.95      
14 B2 1379 1326 33.30      
15 B2 1118 1075 99.58      
16 B2 1066 1025 25.54      
17 B2 911 876 0.80      
18 B2 533 512 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11257.0 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 10823.6 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 PBE1PBE/aug-cc-pVTZ
ABC
0.31694 0.14094 0.09756

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.780
O2 0.000 0.000 1.964
O3 0.000 1.100 -0.021
O4 0.000 -1.100 -0.021
C5 0.000 0.662 -1.321
C6 0.000 -0.662 -1.321
H7 0.000 1.401 -2.101
H8 0.000 -1.401 -2.101

Atom - Atom Distances (Å)
  C1 O2 O3 O4 C5 C6 H7 H8
C11.18381.36091.36092.20322.20323.20373.2037
O21.18382.26932.26933.35133.35134.29954.2995
O31.36092.26932.20031.37232.18992.10153.2533
O41.36092.26932.20032.18991.37233.25332.1015
C52.20323.35131.37232.18991.32371.07452.2056
C62.20323.35132.18991.37231.32372.20561.0745
H73.20374.29952.10153.25331.07452.20562.8030
H83.20374.29953.25332.10152.20561.07452.8030

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 107.434 C1 O4 C6 107.434
O2 C1 O3 126.060 O2 C1 O4 126.060
O3 C1 O4 107.881 O3 C5 C6 108.626
O3 C5 H7 117.871 O4 C6 C5 108.626
O4 C6 H8 117.871 C5 C6 H8 133.503
C6 C5 H7 133.503
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.428      
2 O -0.480      
3 O -0.225      
4 O -0.225      
5 C -0.289      
6 C -0.289      
7 H 0.540      
8 H 0.540      


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 -4.596 4.596
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.107 0.000 0.000
y 0.000 -32.405 0.000
z 0.000 0.000 -33.902
Traceless
 xyz
x 0.047 0.000 0.000
y 0.000 1.099 0.000
z 0.000 0.000 -1.146
Polar
3z2-r2-2.292
x2-y2-0.702
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.341 0.000 0.000
y 0.000 6.557 0.000
z 0.000 0.000 8.228


<r2> (average value of r2) Å2
<r2> 113.539
(<r2>)1/2 10.655