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: MP3=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP3=FULL/6-31G*
 hartrees
Energy at 0K-303.343023
Energy at 298.15K-303.349842
HF Energy-302.519658
Nuclear repulsion energy196.417658
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 MP3=FULL/6-31G*
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 3198 3001 1.10      
2 A 3116 2923 0.52      
3 A 1600 1502 0.02      
4 A 1477 1385 16.85      
5 A 1271 1193 3.96      
6 A 1193 1120 0.20      
7 A 1116 1047 41.40      
8 A 1021 958 48.84      
9 A 902 846 15.54      
10 A 777 729 0.39      
11 A 389 365 6.44      
12 B 3199 3001 49.06      
13 B 3113 2921 108.35      
14 B 1588 1490 6.40      
15 B 1412 1325 2.52      
16 B 1264 1186 7.13      
17 B 1184 1111 14.72      
18 B 1167 1095 197.53      
19 B 1024 960 3.60      
20 B 737 691 3.22      
21 B 175 164 19.81      

Unscaled Zero Point Vibrational Energy (zpe) 15461.2 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 14507.2 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 MP3=FULL/6-31G*
ABC
0.27574 0.27167 0.15357

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

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 0.323
C3 0.000 -1.120 0.323
O4 0.362 0.618 -0.948
O5 -0.362 -0.618 -0.948
H6 0.770 1.839 0.614
H7 -0.770 -1.839 0.614
H8 -0.995 1.583 0.301
H9 0.995 -1.583 0.301

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7 H8 H9
O11.41221.41222.24832.24832.07272.07272.06732.0673
C21.41222.24031.41382.18381.09243.07101.09762.8804
C31.41222.24032.18381.41383.07101.09242.88041.0976
O42.24831.41382.18381.43342.02373.12392.08152.6085
O52.24832.18381.41381.43343.12392.02372.60852.0815
H62.07271.09243.07102.02373.12393.98631.81063.4430
H72.07273.07101.09243.12392.02373.98633.44301.8106
H82.06731.09762.88042.08152.60851.81063.44303.7392
H92.06732.88041.09762.60852.08153.44301.81063.7392

picture of trioxolane124 state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 O4 105.421 O1 C2 H6 111.058
O1 C2 H8 110.288 O1 C3 O5 105.421
O1 C3 H7 111.058 O1 C3 H9 110.288
C2 O1 C3 104.974 C2 O4 O5 100.169
C3 O5 O4 100.169 O4 C2 H6 107.003
O4 C2 H8 111.328 O5 C3 H7 107.003
O5 C3 H9 111.328 H6 C2 H8 111.536
H7 C3 H9 111.536
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability