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: HSEh1PBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at HSEh1PBE/6-311G**
 hartrees
Energy at 0K-189.437259
Energy at 298.15K-189.439875
HF Energy-189.437259
Nuclear repulsion energy70.680529
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 HSEh1PBE/6-311G**
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' 3305 3174 0.50      
2 A' 3144 3019 3.30      
3 A' 1551 1490 37.87      
4 A' 1410 1354 13.35      
5 A' 1251 1202 23.40      
6 A' 987 948 101.89      
7 A' 545 524 0.32      
8 A" 914 878 41.06      
9 A" 690 663 4.42      

Unscaled Zero Point Vibrational Energy (zpe) 6898.5 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 6625.3 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 HSEh1PBE/6-311G**
ABC
2.76496 0.42046 0.36496

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.450 0.000
C2 1.062 -0.219 0.000
H3 0.998 -1.303 0.000
H4 1.975 0.363 0.000
O5 -1.168 -0.169 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.25512.01711.97651.3219
C21.25511.08561.08232.2303
H32.01711.08561.93052.4447
H41.97651.08231.93053.1871
O51.32192.23032.44473.1871

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 118.846 O1 C2 H4 115.272
C2 O1 O5 119.854 H3 C2 H4 125.882
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.027      
2 C 0.008      
3 H 0.145      
4 H 0.151      
5 O -0.331      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.006 -0.368 0.000 4.023
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.444 -0.480 0.000
y -0.480 -16.320 0.000
z 0.000 0.000 -17.164
Traceless
 xyz
x 0.298 -0.480 0.000
y -0.480 0.484 0.000
z 0.000 0.000 -0.782
Polar
3z2-r2-1.564
x2-y2-0.124
xy-0.480
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.707 -0.071 0.000
y -0.071 2.322 0.000
z 0.000 0.000 1.450


<r2> (average value of r2) Å2
<r2> 36.933
(<r2>)1/2 6.077