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 HFCO (formyl fluoride)

using model chemistry: CCSD/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD/aug-cc-pVTZ
 hartrees
Energy at 0K-213.487955
Energy at 298.15K-213.489283
HF Energy-212.835639
Nuclear repulsion energy67.565805
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 CCSD/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' 3147 3008 18.17      
2 A' 1908 1824 280.83      
3 A' 1395 1333 1.18      
4 A' 1121 1072 261.19      
5 A' 681 651 20.82      
6 A" 1053 1007 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 4652.2 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 4446.5 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 CCSD/aug-cc-pVTZ
ABC
3.06919 0.39470 0.34972

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.399 0.000
O2 1.145 0.122 0.000
F3 -0.968 -0.529 0.000
H4 -0.451 1.391 0.000

Atom - Atom Distances (Å)
  C1 O2 F3 H4
C11.17781.34071.0895
O21.17782.21072.0383
F31.34072.21071.9883
H41.08952.03831.9883

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 122.618 O2 C1 H4 128.011
F3 C1 H4 109.371
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability