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

using model chemistry: B3PW91/6-31+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 B3PW91/6-31+G**
 hartrees
Energy at 0K-189.516241
Energy at 298.15K-189.518836
HF Energy-189.516241
Nuclear repulsion energy70.167032
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 B3PW91/6-31+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' 3313 3181 0.55      
2 A' 3155 3029 4.27      
3 A' 1553 1491 37.60      
4 A' 1408 1352 16.54      
5 A' 1247 1197 23.77      
6 A' 977 938 105.55      
7 A' 533 512 0.06      
8 A" 921 884 43.37      
9 A" 678 651 5.67      

Unscaled Zero Point Vibrational Energy (zpe) 6892.1 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 6617.1 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 B3PW91/6-31+G**
ABC
2.71572 0.41466 0.35973

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.456 0.000
C2 1.069 -0.212 0.000
H3 1.016 -1.298 0.000
H4 1.980 0.376 0.000
O5 -1.176 -0.181 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.26082.02691.98121.3376
C21.26081.08701.08422.2458
H32.02691.08701.93172.4609
H41.98121.08421.93173.2048
O51.33762.24582.46093.2048

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 119.206 O1 C2 H4 115.113
C2 O1 O5 119.586 H3 C2 H4 125.681
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.114      
2 C -0.099      
3 H 0.201      
4 H 0.189      
5 O -0.405      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.343 -0.405 0.000 4.361
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.739 -0.535 0.000
y -0.535 -16.597 0.000
z 0.000 0.000 -17.523
Traceless
 xyz
x 0.321 -0.535 0.000
y -0.535 0.534 0.000
z 0.000 0.000 -0.855
Polar
3z2-r2-1.710
x2-y2-0.142
xy-0.535
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.400 -0.058 0.000
y -0.058 2.736 0.000
z 0.000 0.000 1.928


<r2> (average value of r2) Å2
<r2> 37.491
(<r2>)1/2 6.123