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All results from a given calculation for HFCO (formyl fluoride)

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 CS 1A'
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-212.532398
Energy at 298.15K-212.533720
Nuclear repulsion energy66.339859
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 A' 3147 2988 41.47      
2 A' 1865 1771 183.63      
3 A' 1443 1370 2.46      
4 A' 1130 1073 167.85      
5 A' 666 632 19.89      
6 A" 1079 1024 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 4664.9 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 4429.8 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
2.98847 0.37909 0.33642

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.407 0.000
O2 1.166 0.129 0.000
F3 -0.986 -0.541 0.000
H4 -0.452 1.397 0.000

Atom - Atom Distances (Å)
  C1 O2 F3 H4
C11.19861.36731.0890
O21.19862.25372.0561
F31.36732.25372.0102
H41.08902.05612.0102

picture of formyl fluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 C1 F3 122.745 O2 C1 H4 127.935
F3 C1 H4 109.320
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 C 0.462      
2 O -0.415      
3 F -0.271      
4 H 0.225      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.245 1.665 0.000 2.079
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.938 -1.150 0.000
y -1.150 -14.452 0.000
z 0.000 0.000 -14.856
Traceless
 xyz
x -4.284 -1.150 0.000
y -1.150 2.445 0.000
z 0.000 0.000 1.839
Polar
3z2-r23.677
x2-y2-4.486
xy-1.150
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.398 -0.033 0.000
y -0.033 1.582 0.000
z 0.000 0.000 0.809


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000