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

using model chemistry: MP4=FULL/aug-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 MP4=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-189.384064
Energy at 298.15K-189.386610
HF Energy-188.622923
Nuclear repulsion energy70.336377
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 MP4=FULL/aug-cc-pVTZ
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' 3291 3190        
2 A' 3148 3051        
3 A' 1448 1403        
4 A' 1279 1239        
5 A' 1122 1087        
6 A' 1101 1068        
7 A' 547 530        
8 A" 774 750        
9 A" 637 618        

Unscaled Zero Point Vibrational Energy (zpe) 6673.2 cm-1
Scaled (by 0.9693) Zero Point Vibrational Energy (zpe) 6468.3 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 MP4=FULL/aug-cc-pVTZ
ABC
2.72769 0.41563 0.36067

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.453 0.000
C2 1.071 -0.278 0.000
H3 0.958 -1.353 0.000
H4 1.986 0.288 0.000
O5 -1.171 -0.111 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.29702.04421.99331.3001
C21.29701.08051.07632.2485
H32.04421.08051.93652.4645
H41.99331.07631.93653.1828
O51.30012.24852.46453.1828

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 118.307 O1 C2 H4 113.937
C2 O1 O5 119.939 H3 C2 H4 127.756
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability