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/6-311G*

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/6-311G*
 hartrees
Energy at 0K-340.888506
Energy at 298.15K 
HF Energy-340.888506
Nuclear repulsion energy230.547267
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/6-311G*
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 3343 3204 0.09      
2 A1 1973 1891 666.57      
3 A1 1701 1631 2.72      
4 A1 1214 1164 167.51      
5 A1 1140 1093 4.90      
6 A1 925 887 26.41      
7 A1 752 721 3.47      
8 A2 821 787 0.00      
9 A2 585 561 0.00      
10 B1 794 761 3.02      
11 B1 720 690 92.14      
12 B1 245 235 0.88      
13 B2 3317 3179 6.96      
14 B2 1386 1328 43.24      
15 B2 1122 1075 104.12      
16 B2 1059 1015 31.54      
17 B2 916 878 0.26      
18 B2 537 515 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11274.9 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 10807.0 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/6-311G*
ABC
0.31589 0.14102 0.09750

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.781
O2 0.000 0.000 1.963
O3 0.000 1.101 -0.021
O4 0.000 -1.101 -0.021
C5 0.000 0.663 -1.321
C6 0.000 -0.663 -1.321
H7 0.000 1.410 -2.096
H8 0.000 -1.410 -2.096

Atom - Atom Distances (Å)
  C1 O2 O3 O4 C5 C6 H7 H8
C11.18261.36251.36252.20412.20413.20393.2039
O21.18262.26972.26973.35083.35084.29754.2975
O31.36252.26972.20291.37192.19172.09793.2576
O41.36252.26972.20292.19171.37193.25762.0979
C52.20413.35081.37192.19171.32601.07632.2129
C62.20413.35082.19171.37191.32602.21291.0763
H73.20394.29752.09793.25761.07632.21292.8194
H83.20394.29753.25762.09792.21291.07632.8194

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 107.423 C1 O4 C6 107.423
O2 C1 O3 126.060 O2 C1 O4 126.060
O3 C1 O4 107.880 O3 C5 C6 108.636
O3 C5 H7 117.435 O4 C6 C5 108.636
O4 C6 H8 117.435 C5 C6 H8 133.928
C6 C5 H7 133.928
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.503      
2 O -0.322      
3 O -0.253      
4 O -0.253      
5 C -0.092      
6 C -0.092      
7 H 0.254      
8 H 0.254      


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 -4.610 4.610
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.898 0.000 0.000
y 0.000 -32.326 0.000
z 0.000 0.000 -33.000
Traceless
 xyz
x -0.235 0.000 0.000
y 0.000 0.623 0.000
z 0.000 0.000 -0.388
Polar
3z2-r2-0.775
x2-y2-0.572
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.931 0.000 0.000
y 0.000 5.498 0.000
z 0.000 0.000 7.017


<r2> (average value of r2) Å2
<r2> 113.350
(<r2>)1/2 10.647