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: Experimental > One molecule all properties

Experimental data for NF2+ (Difluoroamino cation)

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 cation).
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 cation).
Product of moments of inertia moments of inertia
15215.77amu3Å6   6.96725736987422E-116gm3 cm6
Geometric Data
picture of Difluoroamino cation

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 cation).

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

Connectivity
Atom 1 Atom 2
N1 F2
N1 F3
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 2   2B1
36000 1 1966Herzberg

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
11.628 0.010 12.100 0.100 webbook

Electron Affinity (eV)
Electron Affinity unc. reference
1.100 0.100 webbook
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 2B1 C2v True       0.136 NISTTriatomic ± 0.010 μ0 C2v 1 2
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for NF2+ (Difluoroamino cation).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 2B1 C2v True       C2v 1 2

Calculated electric quadrupole moments for NF2+ (Difluoroamino cation).

References
By selecting the following links, you may be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to [email protected].
squib reference DOI
1966Herzberg Herzberg, G., Electronic spectra and electronic structure of polyatomic molecules,Van Nostrand,New York, 1966  
1984Dav/Ham:445 Davies, P.B.; Hamilton, P.A.; Lweis-Bevan, W.; Russell, D.K. "Infrared laser spectroscopy of free radicals and ions." Proc. R. Soc. London. A 392, 445-455 (1984) 10.1098/rspa.1984.0041
Gurvich Gurvich, L.V.; Veyts, I. V.; Alcock, C. B., Thermodynamic Properties of Individual Substances, Fouth Edition, Hemisphere Pub. Co., New York, 1989  
NISTtriatomic NIST Triatomic Spectral Database (http://www.physics.nist.gov/PhysRefData/MolSpec/Triatomic/index.html) 10.18434/T4DW2S
VEEL5 M.E. Jacox, Vibrational and Electronic Energy Levels of Polyatomic Transient Molecules, J. Phys. Chem.Ref. Data, Monograph 3 (1994) (updated data in NIST Chemistry Webbook - http://webbook.nist.gov/chemistry/  
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

Got a better number? Please email us at [email protected]


Browse
PreviousNext