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

using model chemistry: LSDA/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at LSDA/6-31G*
 hartrees
Energy at 0K-188.628440
Energy at 298.15K-188.630997
HF Energy-188.628440
Nuclear repulsion energy70.505359
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 LSDA/6-31G*
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' 3249 3188 0.87      
2 A' 3089 3031 3.06      
3 A' 1499 1471 41.23      
4 A' 1363 1338 9.90      
5 A' 1222 1199 28.62      
6 A' 1066 1046 39.70      
7 A' 539 529 1.05      
8 A" 801 786 41.75      
9 A" 662 650 17.14      

Unscaled Zero Point Vibrational Energy (zpe) 6744.6 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 6618.4 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 LSDA/6-31G*
ABC
2.72897 0.41941 0.36354

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.452 0.000
C2 1.064 -0.247 0.000
H3 0.967 -1.339 0.000
H4 1.992 0.328 0.000
O5 -1.168 -0.140 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.27332.03581.99581.3096
C21.27331.09631.09202.2344
H32.03581.09631.95742.4486
H41.99581.09201.95743.1944
O51.30962.23442.44863.1944

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 118.249 O1 C2 H4 114.868
C2 O1 O5 119.777 H3 C2 H4 126.883
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.013      
2 C -0.132      
3 H 0.210      
4 H 0.211      
5 O -0.303      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.416 -0.402 0.000 3.440
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.227 -0.298 0.000
y -0.298 -16.132 0.000
z 0.000 0.000 -17.115
Traceless
 xyz
x 0.396 -0.298 0.000
y -0.298 0.539 0.000
z 0.000 0.000 -0.935
Polar
3z2-r2-1.871
x2-y2-0.095
xy-0.298
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.365 -0.109 0.000
y -0.109 2.327 0.000
z 0.000 0.000 1.325


<r2> (average value of r2) Å2
<r2> 36.970
(<r2>)1/2 6.080