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: CCSD(T)/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 CCSD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-303.429881
Energy at 298.15K-303.436329
HF Energy-302.467128
Nuclear repulsion energy190.988452
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 CCSD(T)/aug-cc-pVDZ
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' 3140 3022        
2 A' 3060 2945        
3 A' 1500 1444        
4 A' 1330 1280        
5 A' 1225 1179        
6 A' 999 961        
7 A' 937 902        
8 A' 853 821        
9 A' 839 807        
10 A' 678 653        
11 A' 407 392        
12 A" 3120 3003        
13 A" 3048 2934        
14 A" 1481 1425        
15 A" 1327 1277        
16 A" 1210 1165        
17 A" 1137 1094        
18 A" 1004 966        
19 A" 726 699        
20 A" 641 617        
21 A" 116 112        

Unscaled Zero Point Vibrational Energy (zpe) 14387.7 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 13848.1 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 CCSD(T)/aug-cc-pVDZ
ABC
0.26860 0.24659 0.14497

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.602 -1.052 0.000
O2 0.150 -0.494 1.125
O3 0.150 -0.494 -1.125
C4 0.150 0.904 0.781
C5 0.150 0.904 -0.781
H6 1.066 1.330 1.222
H7 1.066 1.330 -1.222
H8 -0.751 1.403 1.179
H9 -0.751 1.403 -1.179

Atom - Atom Distances (Å)
  O1 O2 O3 C4 C5 H6 H7 H8 H9
O11.46381.46382.23682.23683.15393.15392.72832.7283
O21.46382.25031.43992.36392.04293.10982.10093.1180
O31.46382.25032.36391.43993.10982.04293.11802.1009
C42.23681.43992.36391.56181.10202.24271.10422.2143
C52.23682.36391.43991.56182.24271.10202.21431.1042
H63.15392.04293.10981.10202.24272.44301.81903.0119
H73.15393.10982.04292.24271.10202.44303.01191.8190
H82.72832.10093.11801.10422.21431.81903.01192.3588
H92.72833.11802.10092.21431.10423.01191.81902.3588

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 100.763 O1 O3 C5 100.763
O2 O1 O3 100.459 O2 C4 C5 103.831
O2 C4 H6 106.202 O2 C4 H8 110.643
O3 C5 C4 103.831 O3 C5 H7 106.202
O3 C5 H9 110.643 C4 C5 H7 113.567
C4 C5 H9 111.155 C5 C4 H6 113.567
C5 C4 H8 111.155 H6 C4 H8 111.078
H7 C5 H9 111.078
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability