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Experimental data for NF2 (Difluoroamino radical)

22 02 02 11 45
Other names
Difluoroamidogen; Difluoroamino radical;
INChI INChIKey SMILES IUPAC name
InChI=1S/F2N/c1-3-2 BBZREMAMWBDNHH-UHFFFAOYSA-N F[N]F
State Conformation
2B1 C2V
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Hfg(298.15K) enthalpy of formation 34.42 5.00 kJ mol-1 Gurvich
Hfg(0K) enthalpy of formation 37.00 5.00 kJ mol-1 Gurvich
Entropy (298.15K) entropy 249.63   J K-1 mol-1 Gurvich
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 10.58   kJ mol-1 Gurvich
Heat Capacity (298.15K) heat capacity 41.06   J K-1 mol-1 Gurvich
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference
1 A1 1075   VEEL5      
2 A1 573   VEEL5      
3 B2 942   VEEL5      

vibrational zero-point energy: 1295.2 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for NF2 (Difluoroamino radical).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
2.35147 0.39601 0.33810 1984Dav/Ham:445

Calculated rotational constants for NF2 (Difluoroamino radical).
Product of moments of inertia moments of inertia
15215.77amu3Å6   6.96725736987422E-116gm3 cm6
Geometric Data
picture of Difluoroamino radical

Point Group C2v


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rNF 1.370   1 2 1966Herzberg !assumed
aFNF 104.2 2 1 3 1966Herzberg

These cartesians were determined using some assumed coordinate values. Cartesians
Atom x (Å) y (Å) z (Å)
N1 0.0000 0.0000 0.6059
F2 0.0000 1.0810 -0.2356
F3 0.0000 -1.0810 -0.2356

Atom - Atom Distances bond lengths
Distances in Å
  N1 F2 F3
N1   1.37001.3700
F2 1.3700   2.1621
F3 1.37002.1621  

Calculated geometries for NF2 (Difluoroamino radical).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle
F2 N1 F3 104.200

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
N-F 2
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