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: BLYP/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 BLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-189.644985
Energy at 298.15K-189.647508
HF Energy-189.644985
Nuclear repulsion energy69.022278
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 BLYP/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' 3194 3183 0.23      
2 A' 3045 3035 1.97      
3 A' 1458 1453 20.57      
4 A' 1327 1322 26.60      
5 A' 1197 1193 14.61      
6 A' 891 888 75.13      
7 A' 513 511 0.42      
8 A" 858 855 33.00      
9 A" 640 638 7.05      

Unscaled Zero Point Vibrational Energy (zpe) 6561.7 cm-1
Scaled (by 0.9966) Zero Point Vibrational Energy (zpe) 6539.4 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 BLYP/aug-cc-pVTZ
ABC
2.61749 0.40125 0.34792

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.467 0.000
C2 1.088 -0.202 0.000
H3 1.049 -1.290 0.000
H4 1.992 0.399 0.000
O5 -1.196 -0.204 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.27702.04621.99351.3710
C21.27701.08871.08622.2840
H32.04621.08871.93492.4945
H41.99351.08621.93493.2449
O51.37102.28402.49453.2449

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 119.547 O1 C2 H4 114.796
C2 O1 O5 119.160 H3 C2 H4 125.657
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.051      
2 C -0.377      
3 H 0.384      
4 H 0.383      
5 O -0.441      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.965 -0.322 0.000 3.978
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.056 -0.482 0.000
y -0.482 -17.038 0.000
z 0.000 0.000 -17.790
Traceless
 xyz
x 0.358 -0.482 0.000
y -0.482 0.385 0.000
z 0.000 0.000 -0.743
Polar
3z2-r2-1.487
x2-y2-0.018
xy-0.482
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.101 -0.007 0.000
y -0.007 3.468 0.000
z 0.000 0.000 2.732


<r2> (average value of r2) Å2
<r2> 38.560
(<r2>)1/2 6.210