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

using model chemistry: CISD/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at CISD/6-311+G(3df,2p)
 hartrees
Energy at 0K-189.202291
Energy at 298.15K-189.204914
HF Energy-188.631563
Nuclear repulsion energy70.914699
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 CISD/6-311+G(3df,2p)
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' 3373 3109 0.96      
2 A' 3224 2972 1.72      
3 A' 1717 1583 14.68      
4 A' 1495 1378 6.22      
5 A' 1299 1198 17.97      
6 A' 831 766 139.37      
7 A' 525 484 1.24      
8 A" 1124 1036 20.20      
9 A" 719 663 1.48      

Unscaled Zero Point Vibrational Energy (zpe) 7153.7 cm-1
Scaled (by 0.9218) Zero Point Vibrational Energy (zpe) 6594.3 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 CISD/6-311+G(3df,2p)
ABC
2.69603 0.42762 0.36908

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.463 0.000
C2 1.049 -0.166 0.000
H3 1.013 -1.243 0.000
H4 1.954 0.415 0.000
O5 -1.157 -0.235 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.22271.98421.95461.3516
C21.22271.07801.07592.2071
H31.98421.07801.90712.3930
H41.95461.07591.90713.1787
O51.35162.20712.39303.1787

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 119.043 O1 C2 H4 116.357
C2 O1 O5 117.964 H3 C2 H4 124.600
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability