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 FCO (Carbonyl fluoride)

using model chemistry: LSDA/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-210.880438
Energy at 298.15K-210.880160
HF Energy-210.880438
Nuclear repulsion energy58.871519
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 LSDA/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 A' 1826 1793 130.56      
2 A' 1065 1046 95.52      
3 A' 609 598 8.59      

Unscaled Zero Point Vibrational Energy (zpe) 1750.2 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 1718.7 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 LSDA/3-21G*
ABC
6.15642 0.36502 0.34459

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 -1.040 -0.446 0.000
C2 0.000 0.427 0.000
O3 1.170 0.181 0.000

Atom - Atom Distances (Å)
  F1 C2 O3
F11.35782.2977
C21.35781.1956
O32.29771.1956

picture of Carbonyl fluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F1 C2 O3 128.156
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 F -0.175      
2 C 0.498      
3 O -0.322      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.672 -0.142 0.000 0.687
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.326 -0.330 0.000
y -0.330 -15.330 0.000
z 0.000 0.000 -14.160
Traceless
 xyz
x -2.581 -0.330 0.000
y -0.330 0.413 0.000
z 0.000 0.000 2.168
Polar
3z2-r24.336
x2-y2-1.996
xy-0.330
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.404 0.164 0.000
y 0.164 1.229 0.000
z 0.000 0.000 0.981


<r2> (average value of r2) Å2
<r2> 33.586
(<r2>)1/2 5.795