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

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-189.536174
Energy at 298.15K-189.538782
HF Energy-189.536174
Nuclear repulsion energy70.371911
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 mPW1PW91/6-31+G**
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' 3331 3171 0.71      
2 A' 3173 3020 4.71      
3 A' 1576 1500 39.13      
4 A' 1421 1353 14.39      
5 A' 1256 1195 25.03      
6 A' 979 932 114.65      
7 A' 536 510 0.03      
8 A" 943 898 43.03      
9 A" 685 652 5.04      

Unscaled Zero Point Vibrational Energy (zpe) 6950.5 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 6615.4 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 mPW1PW91/6-31+G**
ABC
2.72784 0.41734 0.36196

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.455 0.000
C2 1.066 -0.210 0.000
H3 1.012 -1.294 0.000
H4 1.975 0.377 0.000
O5 -1.173 -0.183 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.25572.02051.97691.3347
C21.25571.08561.08272.2383
H32.02051.08561.92882.4512
H41.97691.08271.92883.1974
O51.33472.23832.45123.1974

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 119.133 O1 C2 H4 115.233
C2 O1 O5 119.526 H3 C2 H4 125.634
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.116      
2 C -0.103      
3 H 0.206      
4 H 0.193      
5 O -0.412      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.430 -0.401 0.000 4.448
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.734 -0.563 0.000
y -0.563 -16.590 0.000
z 0.000 0.000 -17.525
Traceless
 xyz
x 0.324 -0.563 0.000
y -0.563 0.539 0.000
z 0.000 0.000 -0.863
Polar
3z2-r2-1.726
x2-y2-0.144
xy-0.563
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.366 -0.057 0.000
y -0.057 2.713 0.000
z 0.000 0.000 1.923


<r2> (average value of r2) Å2
<r2> 37.326
(<r2>)1/2 6.110