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: MP4/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/aug-cc-pVDZ
 hartrees
Energy at 0K-303.433430
Energy at 298.15K-303.439844
HF Energy-302.466015
Nuclear repulsion energy190.671887
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 MP4/6-31G*
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' 3158 3085        
2 A' 3081 3010        
3 A' 1556 1520        
4 A' 1363 1331        
5 A' 1250 1222        
6 A' 1013 990        
7 A' 954 932        
8 A' 877 857        
9 A' 846 826        
10 A' 688 672        
11 A' 406 397        
12 A" 3142 3069        
13 A" 3072 3001        
14 A" 1540 1504        
15 A" 1362 1330        
16 A" 1239 1211        
17 A" 1168 1141        
18 A" 1031 1008        
19 A" 733 716        
20 A" 670 654        
21 A" 109 106        

Unscaled Zero Point Vibrational Energy (zpe) 14628.7 cm-1
Scaled (by 0.9769) Zero Point Vibrational Energy (zpe) 14290.8 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 MP4/aug-cc-pVDZ
ABC
0.26766 0.24580 0.14448

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.604 -1.055 0.000
O2 0.150 -0.494 1.128
O3 0.150 -0.494 -1.128
C4 0.150 0.906 0.781
C5 0.150 0.906 -0.781
H6 1.068 1.327 1.222
H7 1.068 1.327 -1.222
H8 -0.751 1.404 1.180
H9 -0.751 1.404 -1.180

Atom - Atom Distances (Å)
  O1 O2 O3 C4 C5 H6 H7 H8 H9
O11.46811.46812.24182.24183.15613.15612.73182.7318
O21.46812.25581.44252.36712.04103.11092.10153.1209
O31.46812.25582.36711.44253.11092.04103.12092.1015
C42.24181.44252.36711.56151.10182.24271.10402.2145
C52.24182.36711.44251.56152.24271.10182.21451.1040
H63.15612.04103.11091.10182.24272.44361.82123.0139
H73.15613.11092.04102.24271.10182.44363.01391.8212
H82.73182.10153.12091.10402.21451.82123.01392.3599
H92.73183.12092.10152.21451.10403.01391.82122.3599

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 100.742 O1 O3 C5 100.742
O2 O1 O3 100.397 O2 C4 C5 103.924
O2 C4 H6 105.898 O2 C4 H8 110.522
O3 C5 C4 103.924 O3 C5 H7 105.898
O3 C5 H9 110.522 C4 C5 H7 113.596
C4 C5 H9 111.196 C5 C4 H6 113.596
C5 C4 H8 111.196 H6 C4 H8 111.304
H7 C5 H9 111.304
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability