Xenon
- Formula: Xe
- Molecular weight: 131.293
- IUPAC Standard InChIKey: FHNFHKCVQCLJFQ-UHFFFAOYSA-N
- CAS Registry Number: 7440-63-3
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Xe; UN 2036; UN 2591; Xenon atom; Xeneisol 133A; Xenomatic
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- Data at other public NIST sites:
- NIST Atomic Spectra Database - Lines Holdings (on physics web site)
- NIST Atomic Spectra Database - Levels Holdings (on physics web site)
- NIST Atomic Spectra Database - Ground states and ionization energies (on physics web site)
- Gas Phase Kinetics Database
- X-ray Photoelectron Spectroscopy Database, version 5.0
- X-ray Photoelectron Spectroscopy Database, version 5.0
- X-ray Photoelectron Spectroscopy Database, version 5.0
- X-ray Photoelectron Spectroscopy Database, version 5.0
- X-ray Photoelectron Spectroscopy Database, version 5.0
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Gas phase thermochemistry data
Go To: Top, Gas phase ion energetics data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
S°gas,1 bar | 169.685 ± 0.003 | J/mol*K | Review | Cox, Wagman, et al., 1984 | CODATA Review value |
S°gas,1 bar | 169.68 | J/mol*K | Review | Chase, 1998 | Data last reviewed in March, 1982 |
Gas Phase Heat Capacity (Shomate Equation)
Cp° = A + B*t + C*t2 + D*t3 +
E/t2
H° − H°298.15= A*t + B*t2/2 +
C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 −
E/(2*t2) + G
Cp = heat capacity (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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Temperature (K) | 298. to 6000. |
---|---|
A | 20.78600 |
B | 7.449320×10-7 |
C | -2.049401×10-7 |
D | 1.066661×10-8 |
E | 2.500261×10-8 |
F | -6.197350 |
G | 194.8380 |
H | 0.000000 |
Reference | Chase, 1998 |
Comment | Data last reviewed in March, 1982 |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias
Data compiled as indicated in comments:
MM - Michael M. Meot-Ner (Mautner)
LL - Sharon G. Lias and Joel F. Liebman
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to Xe+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 12.12987 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 499.6 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 478.1 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Proton affinity at 298K
Proton affinity (kJ/mol) | Reference | Comment |
---|---|---|
495.8 ± 8.4 | Ling, Milburn, et al., 1999 | T = 298K; MM |
Gas basicity at 298K
Gas basicity (review) (kJ/mol) | Reference | Comment |
---|---|---|
474.5 ± 8.4 | Ling, Milburn, et al., 1999 | T = 298K; MM |
Protonation entropy at 298K
Protonation entropy (J/mol*K) | Reference | Comment |
---|---|---|
37. | Ling, Milburn, et al., 1999 | T = 298K; MM |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
12.12987 | EVAL | Lide, 1992 | LL |
12.03 | EI | Wetzel, Baiocchi, et al., 1987 | LBLHLM |
12.13 | EI | Schafer and Rabeneck, 1987 | LBLHLM |
12.130 | PE | Kimura, Katsumata, et al., 1981 | LLK |
12.12 ± 0.02 | EI | Rauh and Ackermann, 1979 | LLK |
12.130 | PE | Dehmer and Dehmer, 1977 | LLK |
12.127 ± 0.002 | TE | Spohr, Guyon, et al., 1971 | LLK |
12.12987 | S | Moore, 1970 | RDSH |
12.09 ± 0.03 | EI | Johnstone, Mellon, et al., 1970 | RDSH |
12.125 ± 0.004 | CI | Hotop and Niehaus, 1969 | RDSH |
12.15 ± 0.03 | EI | Winters, Collins, et al., 1966 | RDSH |
12.12 ± 0.01 | PI | Dibeler, Reese, et al., 1966 | RDSH |
12.129 ± 0.002 | PI | Nicholson, 1965 | RDSH |
12.129 ± 0.002 | PI | Nicholson, 1963 | RDSH |
12.17 | PE | Al-Joboury and Turner, 1963 | RDSH |
References
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A.,
CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]
Chase, 1998
Chase, M.W., Jr.,
NIST-JANAF Themochemical Tables, Fourth Edition,
J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Ling, Milburn, et al., 1999
Ling, Y.; Milburn, R.K.; Hopkinson, A.C.; Bohme, D.K.,
Experimental and theoretical studies of the proton affinity of SiF4 and the structure of SiF4H+,
J. Am. Soc. Mass Spectrom., 1999, 10, 848. [all data]
Lide, 1992
Lide, D.R. (Editor),
Ionization potentials of atoms and atomic ions
in Handbook of Chem. and Phys., 1992, 10-211. [all data]
Wetzel, Baiocchi, et al., 1987
Wetzel, R.C.; Baiocchi, F.A.; Hayes, T.R.; Freund, R.S.,
Absolute cross sections for electron-impact ionization of the rare-gas atoms by the fast-neutral-beam method,
Phys. Rev. A, 1987, 35, 559. [all data]
Schafer and Rabeneck, 1987
Schafer, H.; Rabeneck, H.,
Massenspektroskopische untersuchung der borfluorid-komplexe ABF4,
Z. Anorg. Allg. Chem., 1987, 545, 224. [all data]
Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S.,
Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules
in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]
Rauh and Ackermann, 1979
Rauh, E.G.; Ackermann, R.J.,
The first ionization potentials of the transition metals,
J. Chem. Phys., 1979, 70, 1004. [all data]
Dehmer and Dehmer, 1977
Dehmer, P.M.; Dehmer, J.L.,
Photoelectron spectrum of the Xe2 van der Waals molecule,
J. Chem. Phys., 1977, 67, 1774. [all data]
Spohr, Guyon, et al., 1971
Spohr, R.; Guyon, P.M.; Chupka, W.A.; Berkowitz, J.,
Threshold photoelectron detector for use in the vacuum ultraviolet,
Rev. Sci. Instrum., 1971, 42, 1872. [all data]
Moore, 1970
Moore, C.E.,
Ionization potentials and ionization limits derived from the analyses of optical spectra,
Natl. Stand. Ref. Data Ser., (U.S. Natl. Bur. Stand.), 1970, 34, 1. [all data]
Johnstone, Mellon, et al., 1970
Johnstone, R.A.W.; Mellon, F.A.; Ward, S.D.,
Online acquisition of ionization efficiency data,
Intern. J. Mass Spectrom. Ion Phys., 1970, 5, 241. [all data]
Hotop and Niehaus, 1969
Hotop, H.; Niehaus, A.,
Reactions of excited atoms molecules with atoms and molecules. II. Energy analysis of penning electrons,
Z. Phys., 1969, 228, 68. [all data]
Winters, Collins, et al., 1966
Winters, R.E.; Collins, J.H.; Courchene, W.L.,
Resolution of fine structure in ionization-efficiency curves,
J. Chem. Phys., 1966, 45, 1931. [all data]
Dibeler, Reese, et al., 1966
Dibeler, V.H.; Reese, R.M.; Krauss, M.,
Mass spectrometric study of the photoionization of small molecules,
Advan. Mass Spectrom., 1966, 3, 471. [all data]
Nicholson, 1965
Nicholson, A.J.C.,
Photoionization-efficiency curves. II. False and genuine structure,
J. Chem. Phys., 1965, 43, 1171. [all data]
Nicholson, 1963
Nicholson, A.J.C.,
Photo-ionization efficiency curves. Measurement of ionization potentials and interpretation of fine structure,
J. Chem. Phys., 1963, 39, 954. [all data]
Al-Joboury and Turner, 1963
Al-Joboury, M.I.; Turner, D.W.,
Molecular photo-electron spectroscopy. Part I. The hydrogen and nitrogen molecules,
J. Chem. Soc., 1963, 5141. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
IE (evaluated) Recommended ionization energy S°gas,1 bar Entropy of gas at standard conditions (1 bar) - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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