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

using model chemistry: B3PW91/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 B3PW91/STO-3G
 hartrees
Energy at 0K-186.979381
Energy at 298.15K-186.981665
HF Energy-186.979381
Nuclear repulsion energy67.733197
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 B3PW91/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' 3589 3177 2.90      
2 A' 3373 2985 52.11      
3 A' 1550 1372 7.76      
4 A' 1451 1284 21.40      
5 A' 1278 1131 4.52      
6 A' 1127 997 7.14      
7 A' 509 451 1.23      
8 A" 668 592 17.62      
9 A" 539 477 48.91      

Unscaled Zero Point Vibrational Energy (zpe) 7042.1 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 6232.3 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 B3PW91/STO-3G
ABC
2.48788 0.38686 0.33480

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.481 0.000
C2 1.106 -0.286 0.000
H3 1.029 -1.382 0.000
H4 2.057 0.260 0.000
O5 -1.215 -0.126 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.34642.12822.06851.3586
C21.34641.09831.09642.3274
H32.12821.09831.93752.5720
H42.06851.09641.93753.2949
O51.35862.32742.57203.2949

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 120.702 O1 C2 H4 115.342
C2 O1 O5 118.720 H3 C2 H4 123.957
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.002      
2 C -0.074      
3 H 0.102      
4 H 0.103      
5 O -0.134      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.813 -0.369 0.000 1.850
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.156 -0.052 0.000
y -0.052 -14.895 0.000
z 0.000 0.000 -15.215
Traceless
 xyz
x -0.101 -0.052 0.000
y -0.052 0.290 0.000
z 0.000 0.000 -0.189
Polar
3z2-r2-0.379
x2-y2-0.260
xy-0.052
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.746 -0.152 0.000
y -0.152 1.130 0.000
z 0.000 0.000 0.462


<r2> (average value of r2) Å2
<r2> 38.324
(<r2>)1/2 6.191