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

using model chemistry: QCISD(T)/cc-pVTZ

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(T)/cc-pVTZ
 hartrees
Energy at 0K-189.316071
Energy at 298.15K-189.318610
HF Energy-188.624852
Nuclear repulsion energy69.650086
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(T)/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3303 3133        
2 A' 3143 2981        
3 A' 1489 1412        
4 A' 1323 1255        
5 A' 1228 1165        
6 A' 938 889        
7 A' 530 503        
8 A" 842 799        
9 A" 629 596        

Unscaled Zero Point Vibrational Energy (zpe) 6711.4 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 6366.5 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(T)/cc-pVTZ
ABC
2.57535 0.41342 0.35624

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.473 0.000
C2 1.073 -0.222 0.000
H3 0.992 -1.301 0.000
H4 1.987 0.353 0.000
O5 -1.177 -0.188 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.27862.03271.99111.3501
C21.27861.08241.07992.2508
H32.03271.08241.93062.4383
H41.99111.07991.93063.2106
O51.35012.25082.43833.2106

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 118.614 O1 C2 H4 114.924
C2 O1 O5 117.772 H3 C2 H4 126.462
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability