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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-189.469793
Energy at 298.15K-189.472339
HF Energy-189.469793
Nuclear repulsion energy69.634854
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 PBEPBEultrafine/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' 3207 3171 0.38      
2 A' 3051 3017 2.38      
3 A' 1456 1440 30.64      
4 A' 1333 1318 24.12      
5 A' 1196 1183 19.24      
6 A' 958 947 74.75      
7 A' 523 517 0.42      
8 A" 840 831 35.08      
9 A" 651 644 8.80      

Unscaled Zero Point Vibrational Energy (zpe) 6607.1 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 6533.1 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 PBEPBEultrafine/aug-cc-pVTZ
ABC
2.65949 0.40895 0.35445

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.461 0.000
C2 1.078 -0.223 0.000
H3 1.019 -1.313 0.000
H4 1.990 0.372 0.000
O5 -1.184 -0.176 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.27612.04521.99151.3446
C21.27611.09141.08842.2627
H32.04521.09141.94372.4797
H41.99151.08841.94373.2208
O51.34462.26272.47973.2208

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 119.306 O1 C2 H4 114.526
C2 O1 O5 119.378 H3 C2 H4 126.168
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.093      
2 C -0.405      
3 H 0.378      
4 H 0.380      
5 O -0.445      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.796 -0.356 0.000 3.813
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.981 -0.445 0.000
y -0.445 -16.852 0.000
z 0.000 0.000 -17.702
Traceless
 xyz
x 0.296 -0.445 0.000
y -0.445 0.489 0.000
z 0.000 0.000 -0.786
Polar
3z2-r2-1.572
x2-y2-0.129
xy-0.445
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.940 -0.085 0.000
y -0.085 3.440 0.000
z 0.000 0.000 2.704


<r2> (average value of r2) Å2
<r2> 38.022
(<r2>)1/2 6.166