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 (1,2,3-trioxolane)

using model chemistry: CCD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/cc-pVTZ
 hartrees
Energy at 0K-303.604650
Energy at 298.15K-303.611335
HF Energy-302.546832
Nuclear repulsion energy194.804615
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 CCD/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' 3179 2969 24.50      
2 A' 3103 2897 44.51      
3 A' 1549 1446 0.13      
4 A' 1384 1292 0.07      
5 A' 1274 1189 2.50      
6 A' 1080 1009 37.03      
7 A' 980 915 15.19      
8 A' 971 907 1.46      
9 A' 877 819 0.67      
10 A' 739 690 1.73      
11 A' 417 389 3.90      
12 A" 3161 2952 0.66      
13 A" 3092 2887 20.61      
14 A" 1531 1429 0.78      
15 A" 1388 1296 1.06      
16 A" 1259 1176 0.00      
17 A" 1184 1105 0.12      
18 A" 1085 1013 2.88      
19 A" 869 811 25.76      
20 A" 755 705 6.94      
21 A" 121 113 2.91      

Unscaled Zero Point Vibrational Energy (zpe) 14998.6 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 14004.2 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 CCD/cc-pVTZ
ABC
0.27799 0.25804 0.14989

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.551 -1.043 0.000
O2 0.137 -0.488 1.094
O3 0.137 -0.488 -1.094
C4 0.137 0.893 0.773
C5 0.137 0.893 -0.773
H6 1.036 1.322 1.205
H7 1.036 1.322 -1.205
H8 -0.747 1.392 1.169
H9 -0.747 1.392 -1.169

Atom - Atom Distances (Å)
  O1 O2 O3 C4 C5 H6 H7 H8 H9
O11.40641.40642.19512.19513.09233.09232.70802.7080
O21.40642.18751.41742.32192.02353.06032.07853.0717
O31.40642.18752.32191.41743.06032.02353.07172.0785
C42.19511.41742.32191.54611.08602.21471.08962.1916
C52.19512.32191.41741.54612.21471.08602.19161.0896
H63.09232.02353.06031.08602.21472.40961.78532.9702
H73.09233.06032.02352.21471.08602.40962.97021.7853
H82.70802.07853.07171.08962.19161.78532.97022.3385
H92.70803.07172.07852.19161.08962.97021.78532.3385

picture of 1,2,3-trioxolane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 102.035 O1 O3 C5 102.035
O2 O1 O3 102.098 O2 C4 C5 103.076
O2 C4 H6 107.121 O2 C4 H8 111.332
O3 C5 C4 103.076 O3 C5 H7 107.121
O3 C5 H9 111.332 C4 C5 H7 113.427
C4 C5 H9 111.322 C5 C4 H6 113.427
C5 C4 H8 111.322 H6 C4 H8 110.291
H7 C5 H9 110.291
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability