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

using model chemistry: CCSD/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at CCSD/aug-cc-pVDZ
 hartrees
Energy at 0K-189.145610
Energy at 298.15K-189.148174
HF Energy-188.587051
Nuclear repulsion energy69.460786
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 CCSD/aug-cc-pVDZ
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' 3312 3191 0.56      
2 A' 3154 3039 3.62      
3 A' 1554 1497 34.58      
4 A' 1400 1348 18.12      
5 A' 1236 1191 15.16      
6 A' 828 797 127.74      
7 A' 524 504 0.17      
8 A" 980 944 25.28      
9 A" 661 636 2.90      

Unscaled Zero Point Vibrational Energy (zpe) 6823.5 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 6573.7 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 CCSD/aug-cc-pVDZ
ABC
2.52766 0.41343 0.35531

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.479 0.000
C2 1.069 -0.188 0.000
H3 1.011 -1.281 0.000
H4 1.990 0.400 0.000
O5 -1.177 -0.228 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.26042.03031.99161.3734
C21.26041.09491.09272.2468
H32.03031.09491.94582.4286
H41.99161.09271.94583.2290
O51.37342.24682.42863.2290

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 118.921 O1 C2 H4 115.461
C2 O1 O5 117.033 H3 C2 H4 125.618
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability