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/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/aug-cc-pVDZ
 hartrees
Energy at 0K-303.392918
Energy at 298.15K-303.399503
HF Energy-302.471928
Nuclear repulsion energy192.339942
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/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' 3164 3049 26.49      
2 A' 3086 2973 48.05      
3 A' 1518 1462 0.18      
4 A' 1354 1304 0.01      
5 A' 1243 1198 2.50      
6 A' 1031 994 27.73      
7 A' 959 924 16.82      
8 A' 904 871 3.20      
9 A' 863 831 0.58      
10 A' 708 682 1.46      
11 A' 416 401 3.94      
12 A" 3145 3030 0.44      
13 A" 3074 2961 19.55      
14 A" 1499 1444 0.50      
15 A" 1348 1299 1.16      
16 A" 1229 1184 0.02      
17 A" 1154 1112 0.08      
18 A" 1032 994 2.03      
19 A" 768 740 36.51      
20 A" 724 697 0.01      
21 A" 125 120 3.06      

Unscaled Zero Point Vibrational Energy (zpe) 14671.1 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 14134.2 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 CCSD/aug-cc-pVDZ
ABC
0.27141 0.25107 0.14678

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.563 -1.048 0.000
O2 0.140 -0.493 1.103
O3 0.140 -0.493 -1.103
C4 0.140 0.901 0.780
C5 0.140 0.901 -0.780
H6 1.053 1.330 1.218
H7 1.053 1.330 -1.218
H8 -0.756 1.404 1.184
H9 -0.756 1.404 -1.184

Atom - Atom Distances (Å)
  O1 O2 O3 C4 C5 H6 H7 H8 H9
O11.42101.42102.21402.21403.12253.12252.72972.7297
O21.42102.20671.43112.34342.04223.08962.09923.1037
O31.42102.20672.34341.43113.08962.04223.10372.0992
C42.21401.43112.34341.56051.09982.23851.10352.2166
C52.21402.34341.43111.56052.23851.09982.21661.1035
H63.12252.04223.08961.09982.23852.43601.81043.0078
H73.12253.08962.04222.23851.09982.43603.00781.8104
H82.72972.09923.10371.10352.21661.81043.00782.3683
H92.72973.10372.09922.21661.10353.00781.81042.3683

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 101.842 O1 O3 C5 101.842
O2 O1 O3 101.875 O2 C4 C5 103.049
O2 C4 H6 106.861 O2 C4 H8 111.175
O3 C5 C4 103.049 O3 C5 H7 106.861
O3 C5 H9 111.175 C4 C5 H7 113.457
C4 C5 H9 111.472 C5 C4 H6 113.457
C5 C4 H8 111.472 H6 C4 H8 110.509
H7 C5 H9 110.509
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability