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

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-37.860609
Energy at 298.15K-37.863032
HF Energy-37.860609
Nuclear repulsion energy38.651958
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 HF/CEP-121G*
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' 3404 3075 4.11      
2 A' 3272 2956 16.74      
3 A' 1896 1713 120.28      
4 A' 1585 1432 22.03      
5 A' 1347 1216 18.28      
6 A' 567 513 45.03      
7 A' 458 414 5.81      
8 A" 1297 1172 5.68      
9 A" 631 570 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 7228.6 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 6530.4 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 HF/CEP-121G*
ABC
2.42108 0.40042 0.34360

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.508 0.000
C2 1.065 -0.060 0.000
H3 1.101 -1.141 0.000
H4 1.967 0.539 0.000
O5 -1.182 -0.388 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.20671.98331.96711.4834
C21.20671.08231.08272.2710
H31.98331.08231.89042.4047
H41.96711.08271.89043.2828
O51.48342.27102.40473.2828

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 119.991 O1 C2 H4 118.352
C2 O1 O5 114.783 H3 C2 H4 121.657
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.057      
2 C 0.068      
3 H 0.213      
4 H 0.201      
5 O -0.425      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  5.637 -0.094 0.000 5.637
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.332 -0.803 0.000
y -0.803 -16.750 0.000
z 0.000 0.000 -17.012
Traceless
 xyz
x 1.549 -0.803 0.000
y -0.803 -0.578 0.000
z 0.000 0.000 -0.971
Polar
3z2-r2-1.943
x2-y21.418
xy-0.803
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.528 0.333 0.000
y 0.333 2.423 0.000
z 0.000 0.000 1.416


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