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All results from a given calculation for H2COO (Dioxymethyl radical)

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 CS 2A'
Energy calculated at QCISD/6-311G**
 hartrees
Energy at 0K-189.170274
Energy at 298.15K-189.172838
HF Energy-188.600113
Nuclear repulsion energy69.706184
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 A' 3318 3166 0.12      
2 A' 3162 3017 0.99      
3 A' 1514 1444 17.97      
4 A' 1383 1319 15.39      
5 A' 1240 1183 23.12      
6 A' 1002 956 9.48      
7 A' 539 514 3.23      
8 A" 867 827 32.57      
9 A" 621 593 2.25      

Unscaled Zero Point Vibrational Energy (zpe) 6822.4 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 6509.3 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
2.53968 0.41653 0.35784

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.478 0.000
C2 1.068 -0.218 0.000
H3 0.985 -1.301 0.000
H4 1.991 0.350 0.000
O5 -1.173 -0.195 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.27462.03361.99481.3521
C21.27461.08641.08392.2408
H32.03361.08641.93372.4250
H41.99481.08391.93373.2102
O51.35212.24082.42503.2102

picture of Dioxymethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 118.720 O1 C2 H4 115.279
C2 O1 O5 117.070 H3 C2 H4 126.001
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability