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

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-38.592232
Energy at 298.15K-38.594740
HF Energy-38.592232
Nuclear repulsion energy38.036046
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 B3LYP/CEP-121G
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' 3262 3178 1.93      
2 A' 3090 3011 2.62      
3 A' 1491 1453 11.59      
4 A' 1373 1338 15.16      
5 A' 1229 1197 8.96      
6 A' 836 815 60.65      
7 A' 477 465 0.03      
8 A" 962 938 59.03      
9 A" 627 611 3.77      

Unscaled Zero Point Vibrational Energy (zpe) 6672.9 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 6502.7 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 B3LYP/CEP-121G
ABC
2.54901 0.37820 0.32933

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.477 0.000
C2 1.120 -0.164 0.000
H3 1.114 -1.254 0.000
H4 2.016 0.451 0.000
O5 -1.231 -0.253 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.29032.05782.01571.4312
C21.29031.08941.08682.3527
H32.05781.08941.92872.5494
H42.01571.08681.92873.3222
O51.43122.35272.54943.3222

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 119.461 O1 C2 H4 115.723
C2 O1 O5 119.558 H3 C2 H4 124.816
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.039      
2 C -0.118      
3 H 0.187      
4 H 0.190      
5 O -0.298      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.566 -0.502 0.000 4.594
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.289 -0.488 0.000
y -0.488 -16.908 0.000
z 0.000 0.000 -17.460
Traceless
 xyz
x 0.895 -0.488 0.000
y -0.488 -0.034 0.000
z 0.000 0.000 -0.861
Polar
3z2-r2-1.722
x2-y20.619
xy-0.488
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.351 0.170 0.000
y 0.170 2.343 0.000
z 0.000 0.000 1.370


<r2> (average value of r2) Å2
<r2> 33.591
(<r2>)1/2 5.796