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

using model chemistry: MP2=FULL/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 MP2=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-189.336305
Energy at 298.15K-189.338916
HF Energy-188.619337
Nuclear repulsion energy71.168078
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 MP2=FULL/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 3180 3.04      
2 A' 3193 3010 16.93      
3 A' 1485 1400 5.71      
4 A' 1307 1232 10.31      
5 A' 1224 1154 345.14      
6 A' 1087 1025 646.32      
7 A' 560 528 10.64      
8 A" 828 781 35.73      
9 A" 694 654 22.52      

Unscaled Zero Point Vibrational Energy (zpe) 6875.6 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 6481.6 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 MP2=FULL/6-311+G(3df,2p)
ABC
2.82428 0.42434 0.36891

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.443 0.000
C2 1.059 -0.273 0.000
H3 0.950 -1.347 0.000
H4 1.971 0.295 0.000
O5 -1.159 -0.107 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.27812.02611.97631.2828
C21.27811.07901.07442.2243
H32.02611.07901.93292.4471
H41.97631.07441.93293.1557
O51.28282.22432.44713.1557

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 118.295 O1 C2 H4 114.014
C2 O1 O5 120.583 H3 C2 H4 127.691
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability