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

using model chemistry: MP2/STO-3G

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/STO-3G
 hartrees
Energy at 0K-186.245635
Energy at 298.15K 
HF Energy-186.028783
Nuclear repulsion energy67.493584
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/STO-3G
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' 3670 3200 1.00      
2 A' 3445 3004 11.07      
3 A' 1872 1632 34.93      
4 A' 1517 1322 1.62      
5 A' 1179 1028 16.51      
6 A' 990 863 24.77      
7 A' 535 467 3.17      
8 A" 638 556 1.01      
9 A" 444i 387i 64.63      

Unscaled Zero Point Vibrational Energy (zpe) 6701.0 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 5842.6 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/STO-3G
ABC
2.40732 0.38406 0.33122

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.493 0.000
C2 1.108 -0.391 0.000
H3 0.922 -1.471 0.000
H4 2.078 0.114 0.000
O5 -1.206 -0.030 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.41722.16962.11191.3146
C21.41721.09621.09312.3418
H32.16961.09621.96152.5696
H42.11191.09311.96153.2867
O51.31462.34182.56963.2867

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 118.808 O1 C2 H4 113.932
C2 O1 O5 117.960 H3 C2 H4 127.261
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability