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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: QCISD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/6-311G**
 hartrees
Energy at 0K-189.211155
Energy at 298.15K-189.214026
HF Energy-188.652264
Nuclear repulsion energy73.409037
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 QCISD/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3112 2969 32.36      
2 A1 1587 1514 5.94      
3 A1 1339 1278 41.87      
4 A1 778 742 1.03      
5 A2 1055 1006 0.00      
6 B1 3205 3058 37.99      
7 B1 1208 1153 12.84      
8 B2 1294 1234 1.06      
9 B2 940 896 21.32      

Unscaled Zero Point Vibrational Energy (zpe) 7258.8 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 6925.7 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 QCISD/6-311G**
ABC
0.96827 0.85291 0.50011

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.727
H2 0.927 0.000 1.301
H3 -0.927 0.000 1.301
O4 0.000 0.751 -0.435
O5 0.000 -0.751 -0.435

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09041.09041.38401.3840
H21.09041.85472.10662.1066
H31.09041.85472.10662.1066
O41.38402.10662.10661.5015
O51.38402.10662.10661.5015

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.148 C1 O5 O4 57.148
H2 C1 H3 116.532 H2 C1 O4 116.222
H2 C1 O5 116.222 H3 C1 O4 116.222
H3 C1 O5 116.222 O4 C1 O5 65.704
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability