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)=FULL/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 CCSD(T)=FULL/cc-pVTZ
 hartrees
Energy at 0K-303.733908
Energy at 298.15K-303.740483
HF Energy-302.543318
Nuclear repulsion energy193.738813
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)=FULL/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' 3152 3020        
2 A' 3089 2959        
3 A' 1536 1472        
4 A' 1359 1302        
5 A' 1261 1208        
6 A' 1035 992        
7 A' 960 920        
8 A' 897 859        
9 A' 864 828        
10 A' 707 677        
11 A' 417 399        
12 A" 3134 3003        
13 A" 3076 2947        
14 A" 1520 1456        
15 A" 1366 1309        
16 A" 1244 1192        
17 A" 1166 1117        
18 A" 1048 1004        
19 A" 754 723        
20 A" 712 682        
21 A" 122 117        

Unscaled Zero Point Vibrational Energy (zpe) 14709.3 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 14091.5 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)=FULL/cc-pVTZ
ABC
0.27603 0.25411 0.14869

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.581 -1.045 0.000
O2 0.144 -0.486 1.110
O3 0.144 -0.486 -1.110
C4 0.144 0.893 0.772
C5 0.144 0.893 -0.772
H6 1.044 1.319 1.202
H7 1.044 1.319 -1.202
H8 -0.742 1.390 1.160
H9 -0.742 1.390 -1.160

Atom - Atom Distances (Å)
  O1 O2 O3 C4 C5 H6 H7 H8 H9
O11.43891.43892.20932.20933.11083.11082.70202.7020
O21.43892.21911.41982.33312.01893.06772.07493.0747
O31.43892.21912.33311.41983.06772.01893.07472.0749
C42.20931.41982.33311.54451.08432.21111.08712.1830
C52.20932.33311.41981.54452.21111.08432.18301.0871
H63.11082.01893.06771.08432.21112.40411.78772.9621
H73.11083.06772.01892.21111.08432.40412.96211.7877
H82.70202.07493.07471.08712.18301.78772.96212.3203
H92.70203.07472.07492.18301.08712.96211.78772.3203

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 101.214 O1 O3 C5 101.214
O2 O1 O3 100.907 O2 C4 C5 103.744
O2 C4 H6 106.690 O2 C4 H8 111.024
O3 C5 C4 103.744 O3 C5 H7 106.690
O3 C5 H9 111.024 C4 C5 H7 113.352
C4 C5 H9 110.904 C5 C4 H6 113.352
C5 C4 H8 110.904 H6 C4 H8 110.835
H7 C5 H9 110.835
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability