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

using model chemistry: B2PLYP/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 B2PLYP/STO-3G
 hartrees
Energy at 0K-186.778858
Energy at 298.15K-186.780950
HF Energy-186.696098
Nuclear repulsion energy67.328340
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 B2PLYP/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' 3615 3615 2.25      
2 A' 3395 3395 43.26      
3 A' 1536 1536 2.72      
4 A' 1471 1471 6.64      
5 A' 1229 1229 13.63      
6 A' 1119 1119 0.06      
7 A' 509 509 1.36      
8 A" 637 637 4.19      
9 A" 348 348 59.22      

Unscaled Zero Point Vibrational Energy (zpe) 6928.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6928.8 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 B2PLYP/STO-3G
ABC
2.41529 0.38393 0.33127

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.491 0.000
C2 1.112 -0.305 0.000
H3 1.008 -1.398 0.000
H4 2.067 0.231 0.000
O5 -1.218 -0.116 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.36752.14052.08311.3608
C21.36751.09751.09522.3382
H32.14051.09751.94302.5691
H42.08311.09521.94303.3035
O51.36082.33822.56913.3035

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 120.137 O1 C2 H4 115.079
C2 O1 O5 117.960 H3 C2 H4 124.784
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.002      
2 C -0.065      
3 H 0.088      
4 H 0.090      
5 O -0.111      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.545 -0.377 0.000 1.591
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.209 -0.009 0.000
y -0.009 -15.023 0.000
z 0.000 0.000 -15.216
Traceless
 xyz
x -0.090 -0.009 0.000
y -0.009 0.189 0.000
z 0.000 0.000 -0.100
Polar
3z2-r2-0.200
x2-y2-0.186
xy-0.009
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.755 -0.136 0.000
y -0.136 1.142 0.000
z 0.000 0.000 0.463


<r2> (average value of r2) Å2
<r2> 38.644
(<r2>)1/2 6.216