return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: wB97X-D/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 wB97X-D/CEP-121G*
 hartrees
Energy at 0K-38.632421
Energy at 298.15K-38.635012
HF Energy-38.632421
Nuclear repulsion energy 
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 wB97X-D/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' 3289 3289 1.51      
2 A' 3134 3134 0.55      
3 A' 1569 1569 31.64      
4 A' 1419 1419 13.07      
5 A' 1252 1252 22.99      
6 A' 952 952 119.32      
7 A' 524 524 0.07      
8 A" 954 954 43.55      
9 A" 678 678 2.57      

Unscaled Zero Point Vibrational Energy (zpe) 6885.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6885.6 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 wB97X-D/CEP-121G*
ABC
2.64797 0.41308 0.35733

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.465 0.000
C2 1.070 -0.196 0.000
H3 1.019 -1.285 0.000
H4 1.987 0.387 0.000
O5 -1.178 -0.205 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.25802.02431.98811.3555
C21.25801.08941.08652.2487
H32.02431.08941.93192.4480
H41.98811.08651.93193.2200
O51.35552.24872.44803.2200

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 118.994 O1 C2 H4 115.792
C2 O1 O5 118.678 H3 C2 H4 125.214
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.118      
2 C -0.145      
3 H 0.217      
4 H 0.215      
5 O -0.404      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.486 -0.346 0.000 4.500
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.169 -0.601 0.000
y -0.601 -16.229 0.000
z 0.000 0.000 -17.159
Traceless
 xyz
x 0.525 -0.601 0.000
y -0.601 0.435 0.000
z 0.000 0.000 -0.960
Polar
3z2-r2-1.920
x2-y20.060
xy-0.601
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.144 -0.017 0.000
y -0.017 2.472 0.000
z 0.000 0.000 1.605


<r2> (average value of r2) Å2
<r2> 31.719
(<r2>)1/2 5.632