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: MP2/aug-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 MP2/aug-cc-pVTZ
 hartrees
Energy at 0K-303.622369
Energy at 298.15K-303.628891
HF Energy-302.547216
Nuclear repulsion energy193.287052
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 MP2/aug-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' 3191 3041 15.51      
2 A' 3106 2960 41.73      
3 A' 1534 1461 0.26      
4 A' 1348 1285 0.57      
5 A' 1250 1191 2.26      
6 A' 1014 966 28.03      
7 A' 960 915 12.66      
8 A' 887 846 1.82      
9 A' 869 828 0.46      
10 A' 703 670 1.46      
11 A' 409 390 4.39      
12 A" 3173 3023 0.05      
13 A" 3097 2951 13.32      
14 A" 1517 1446 1.86      
15 A" 1363 1299 0.48      
16 A" 1239 1181 0.00      
17 A" 1160 1105 0.17      
18 A" 1037 988 0.41      
19 A" 743 708 37.37      
20 A" 705 672 9.38      
21 A" 105 100 3.35      

Unscaled Zero Point Vibrational Energy (zpe) 14704.9 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 14012.3 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 MP2/aug-cc-pVTZ
ABC
0.27449 0.25319 0.14795

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.561 -1.045 0.000
O2 0.139 -0.488 1.101
O3 0.139 -0.488 -1.101
C4 0.139 0.896 0.775
C5 0.139 0.896 -0.775
H6 1.042 1.319 1.207
H7 1.042 1.319 -1.207
H8 -0.746 1.394 1.170
H9 -0.746 1.394 -1.170

Atom - Atom Distances (Å)
  O1 O2 O3 C4 C5 H6 H7 H8 H9
O11.41851.41852.20382.20383.10043.10042.71172.7117
O21.41852.20241.42212.33132.02293.06732.08153.0798
O31.41852.20242.33131.42213.06732.02293.07982.0815
C42.20381.42212.33131.54941.08642.21821.09012.1939
C52.20382.33131.42211.54942.21821.08642.19391.0901
H63.10042.02293.06731.08642.21822.41391.78972.9750
H73.10043.06732.02292.21821.08642.41392.97501.7897
H82.71172.08153.07981.09012.19391.78972.97502.3396
H92.71173.07982.08152.19391.09012.97501.78972.3396

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 101.758 O1 O3 C5 101.758
O2 O1 O3 101.845 O2 C4 C5 103.273
O2 C4 H6 106.729 O2 C4 H8 111.214
O3 C5 C4 103.273 O3 C5 H7 106.729
O3 C5 H9 111.214 C4 C5 H7 113.443
C4 C5 H9 111.248 C5 C4 H6 113.443
C5 C4 H8 111.248 H6 C4 H8 110.624
H7 C5 H9 110.624
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability