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 C2H4O3 (trioxolane124)

using model chemistry: B2PLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-304.072803
Energy at 298.15K-304.079549
HF Energy-303.732594
Nuclear repulsion energy196.291792
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 B2PLYP/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 A 3135 3007 0.27      
2 A 3051 2927 0.67      
3 A 1546 1483 0.01      
4 A 1431 1373 8.50      
5 A 1236 1186 3.26      
6 A 1157 1110 0.09      
7 A 1057 1014 29.75      
8 A 970 930 69.06      
9 A 853 818 13.39      
10 A 754 724 0.75      
11 A 380 364 6.33      
12 B 3134 3006 38.69      
13 B 3049 2925 135.74      
14 B 1536 1474 2.50      
15 B 1382 1326 4.92      
16 B 1229 1179 4.29      
17 B 1154 1107 11.65      
18 B 1100 1055 182.56      
19 B 943 905 6.12      
20 B 709 680 1.87      
21 B 171 164 16.44      

Unscaled Zero Point Vibrational Energy (zpe) 14987.2 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 14378.7 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 B2PLYP/cc-pVTZ
ABC
0.27562 0.27104 0.15312

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.183
C2 0.000 1.120 0.324
C3 0.000 -1.120 0.324
O4 0.357 0.622 -0.949
O5 -0.357 -0.622 -0.949
H6 0.767 1.836 0.611
H7 -0.767 -1.836 0.611
H8 -0.993 1.578 0.306
H9 0.993 -1.578 0.306

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7 H8 H9
O11.41141.41142.24862.24862.07052.07052.06012.0601
C21.41142.23961.41192.18611.08813.06741.09352.8745
C31.41142.23962.18611.41193.06741.08812.87451.0935
O42.24861.41192.18611.43392.01873.12042.07572.6108
O52.24862.18611.41191.43393.12042.01872.61082.0757
H62.07051.08813.06742.01873.12043.97991.80453.4351
H72.07053.06741.08813.12042.01873.97993.43511.8045
H82.06011.09352.87452.07572.61081.80453.43513.7284
H92.06012.87451.09352.61082.07573.43511.80453.7284

picture of trioxolane124 state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 O4 105.583 O1 C2 H6 111.203
O1 C2 H8 110.009 O1 C3 O5 105.583
O1 C3 H7 111.203 O1 C3 H9 110.009
C2 O1 C3 105.007 C2 O4 O5 100.378
C3 O5 O4 100.378 O4 C2 H6 106.985
O4 C2 H8 111.253 O5 C3 H7 106.985
O5 C3 H9 111.253 H6 C2 H8 111.613
H7 C3 H9 111.613
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.338      
2 C 0.194      
3 C 0.194      
4 O -0.193      
5 O -0.193      
6 H 0.095      
7 H 0.095      
8 H 0.073      
9 H 0.073      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.383 0.234 0.000
y 0.234 6.307 0.000
z 0.000 0.000 4.526


<r2> (average value of r2) Å2
<r2> 83.981
(<r2>)1/2 9.164