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 CF2O (Carbonic difluoride)

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-311.221300
Energy at 298.15K 
HF Energy-311.221300
Nuclear repulsion energy117.371677
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 mPW1PW91/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 1972 1872 322.59 4.60 0.31 0.48
2 A1 968 919 29.52 6.55 0.11 0.20
3 A1 555 527 6.58 1.60 0.75 0.86
4 B1 752 714 36.19 0.88 0.75 0.86
5 B2 1318 1252 339.34 0.28 0.75 0.86
6 B2 619 587 11.65 3.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3091.7 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 2935.8 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 mPW1PW91/3-21G*
ABC
0.37846 0.37613 0.18864

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.337
C2 0.000 0.000 0.147
F3 0.000 1.086 -0.643
F4 0.000 -1.086 -0.643

Atom - Atom Distances (Å)
  O1 C2 F3 F4
O11.18982.25842.2584
C21.18981.34321.3432
F32.25841.34322.1721
F42.25841.34322.1721

picture of Carbonic difluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 F3 126.042 O1 C2 F4 126.042
F3 C2 F4 107.916
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.432      
2 C 0.942      
3 F -0.255      
4 F -0.255      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.922 0.922
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.160 0.000 0.000
y 0.000 -20.994 0.000
z 0.000 0.000 -23.101
Traceless
 xyz
x 3.887 0.000 0.000
y 0.000 -0.363 0.000
z 0.000 0.000 -3.524
Polar
3z2-r2-7.047
x2-y22.834
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.798 0.000 0.000
y 0.000 1.600 0.000
z 0.000 0.000 2.272


<r2> (average value of r2) Å2
<r2> 56.068
(<r2>)1/2 7.488