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/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-303.395450
Energy at 298.15K-303.402275
HF Energy-302.533506
Nuclear repulsion energy196.345509
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/6-31+G**
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 3241 3019 0.43      
2 A 3152 2936 0.46      
3 A 1596 1487 0.01      
4 A 1473 1373 19.74      
5 A 1270 1183 5.14      
6 A 1187 1106 0.15      
7 A 1109 1033 45.28      
8 A 1010 941 55.30      
9 A 898 837 17.25      
10 A 770 718 0.28      
11 A 389 362 7.33      
12 B 3241 3019 34.91      
13 B 3150 2934 107.88      
14 B 1586 1478 4.58      
15 B 1415 1318 3.03      
16 B 1262 1176 5.90      
17 B 1180 1100 17.29      
18 B 1157 1078 192.40      
19 B 1015 946 3.81      
20 B 733 683 3.42      
21 B 175 163 22.57      

Unscaled Zero Point Vibrational Energy (zpe) 15504.7 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 14444.2 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/6-31+G**
ABC
0.27587 0.27101 0.15331

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.180
C2 0.000 1.125 0.324
C3 0.000 -1.125 0.324
O4 0.362 0.619 -0.947
O5 -0.362 -0.619 -0.947
H6 0.766 1.838 0.614
H7 -0.766 -1.838 0.614
H8 -0.992 1.581 0.300
H9 0.992 -1.581 0.300

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7 H8 H9
O11.41391.41392.24492.24492.07052.07052.06342.0634
C21.41392.24951.41442.18791.08643.07431.09182.8819
C31.41392.24952.18791.41443.07431.08642.88191.0918
O42.24491.41442.18791.43422.02173.12232.07632.6065
O52.24492.18791.41441.43423.12232.02172.60652.0763
H62.07051.08643.07432.02173.12233.98321.80373.4413
H72.07053.07431.08643.12232.02173.98323.44131.8037
H82.06341.09182.88192.07632.60651.80373.44133.7325
H92.06342.88191.09182.60652.07633.44131.80373.7325

picture of trioxolane124 state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 O4 105.073 O1 C2 H6 111.126
O1 C2 H8 110.210 O1 C3 O5 105.073
O1 C3 H7 111.126 O1 C3 H9 110.210
C2 O1 C3 105.404 C2 O4 O5 100.357
C3 O5 O4 100.357 O4 C2 H6 107.156
O4 C2 H8 111.237 O5 C3 H7 107.156
O5 C3 H9 111.237 H6 C2 H8 111.802
H7 C3 H9 111.802
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability