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: M06-2X/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at M06-2X/aug-cc-pVTZ
 hartrees
Energy at 0K-189.575459
Energy at 298.15K-189.578099
HF Energy-189.575459
Nuclear repulsion energy70.644058
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 M06-2X/aug-cc-pVTZ
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' 3291 3146 1.91      
2 A' 3139 3000 4.36      
3 A' 1631 1558 28.53      
4 A' 1433 1370 8.02      
5 A' 1263 1207 21.22      
6 A' 930 888 131.14      
7 A' 545 520 0.03      
8 A" 1026 980 27.13      
9 A" 709 677 2.21      

Unscaled Zero Point Vibrational Energy (zpe) 6982.9 cm-1
Scaled (by 0.9557) Zero Point Vibrational Energy (zpe) 6673.6 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 M06-2X/aug-cc-pVTZ
ABC
2.69852 0.42335 0.36594

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.460 0.000
C2 1.057 -0.187 0.000
H3 1.004 -1.269 0.000
H4 1.967 0.397 0.000
O5 -1.164 -0.211 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.23871.99971.96781.3435
C21.23871.08421.08142.2204
H31.99971.08421.92482.4120
H41.96781.08141.92483.1891
O51.34352.22042.41203.1891

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 118.680 O1 C2 H4 115.862
C2 O1 O5 118.548 H3 C2 H4 125.458
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.007      
2 C -0.452      
3 H 0.484      
4 H 0.444      
5 O -0.469      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.658 -0.308 0.000 4.668
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.672 -0.699 0.000
y -0.699 -16.612 0.000
z 0.000 0.000 -17.528
Traceless
 xyz
x 0.399 -0.699 0.000
y -0.699 0.488 0.000
z 0.000 0.000 -0.886
Polar
3z2-r2-1.773
x2-y2-0.059
xy-0.699
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.458 0.016 0.000
y 0.016 3.089 0.000
z 0.000 0.000 2.483


<r2> (average value of r2) Å2
<r2> 37.015
(<r2>)1/2 6.084