[2H]hydrogen fluoride

Formula: DF
Molecular weight: 21.0125050
IUPAC Standard InChI: InChI=1S/FH/h1H/i/hD
IUPAC Standard InChIKey: KRHYYFGTRYWZRS-DYCDLGHISA-N
CAS Registry Number: 14333-26-7
Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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Isotopologues:
- hydrogen fluoride
Other names: Hydrofluoric acid-d
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Information on this page:
Other data available:
- Gas phase thermochemistry data
- Constants of diatomic molecules
Data at other public NIST sites:
- Computational Chemistry Comparison and Benchmark Database
- Gas Phase Kinetics Database
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Gas phase ion energetics data

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV)	Method	Reference	Comment
16.058	TE	Guyon, Spohr, et al., 1976	LLK
16.058 ± 0.003	PE	Walker, Dehmer, et al., 1973	LLK
16.030 ± 0.010	PI	Berkowitz, Chupka, et al., 1971	LLK
16.05 ± 0.01	PE	Brundle, 1970	RDSH
16.06 ± 0.01	PE	Lempka and Price, 1968	RDSH

Appearance energy determinations

Ion	AE (eV)	Other Products	Method	Reference	Comment
D⁺	16.134 ± 0.005	F^-	PI	Berkowitz, Chupka, et al., 1971	LLK
D⁺	19.513 ± 0.005	F	PI	Berkowitz, Chupka, et al., 1971	LLK

References

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Guyon, Spohr, et al., 1976
Guyon, P.-M.; Spohr, R.; Chupka, W.A.; Berkowitz, J., Threshold photoelectron spectra of HF, DF, F₂, J. Chem. Phys., 1976, 65, 1650. [all data]

Walker, Dehmer, et al., 1973
Walker, T.E.H.; Dehmer, P.M.; Berkowitz, J., Rotational band shapes in photoelectron spectroscopy: HF DF, J. Chem. Phys., 1973, 59, 4292. [all data]

Berkowitz, Chupka, et al., 1971
Berkowitz, J.; Chupka, W.A.; Guyon, P.M.; Holloway, J.H.; Spohr, R., Photoionization mass spectrometric study of F₂, HF, and DF, J. Chem. Phys., 1971, 54, 5165. [all data]

Brundle, 1970
Brundle, C.R., Ionization and dissociation energies of HF and DF and their bearing on D(F₂), Chem. Phys. Lett., 1970, 7, 317. [all data]

Lempka and Price, 1968
Lempka, H.J.; Price, W.C., Ionization energies of HF and DF, J. Chem. Phys., 1968, 48, 1875. [all data]

Notes

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Symbols used in this document:

AE Appearance energy
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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