tungsten
- Formula: W
- Molecular weight: 183.84
- IUPAC Standard InChI: InChI=1S/W
- IUPAC Standard InChIKey: WFKWXMTUELFFGS-UHFFFAOYSA-N
- CAS Registry Number: 7440-33-7
- Chemical structure:
This structure is also available as a 2d Mol file - Permanent link for this species. Use this link for bookmarking this species for future reference.
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- Other data available:
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Reaction 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.
Data compiled by: José A. Martinho Simões
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
(cr) = 6
(g) +
(cr)
By formula: C6O6W (cr) = 6CO (g) + W (cr)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 71.4 ± 1.1 | kcal/mol | TD-HFC, HAL-HFC | Al-Takhin, Connor, et al., 1984 | The reaction enthalpy corresponds to the TD experiments and leads to -229.9 ± 1.1 kcal/mol for the enthalpy of formation. The value -960±3 was recommended by the authors Al-Takhin, Connor, et al., 1984. Other values for the enthalpy of sublimation have been reported: 17.5 ± 0.2 kcal/mol Adedeji, Brown, et al., 1975, 17.7 ± 1.0 kcal/mol Hieber and Romberg, 1935, 16.7 ± 1.0 kcal/mol Rezukhina and Shvyrev, 1952, and 18.9 ± 0.26 kcal/mol Daamen, Ernsting, et al., 1979 Boxhoorn, Ernsting, et al., 1980. See also Pilcher, Ware, et al., 1975 |
| ΔrH° | 70.77 ± 0.43 | kcal/mol | TD-HZC | Barnes, Pilcher, et al., 1974 | Please also see Pedley and Rylance, 1977 and Tel'noi and Rabinovich, 1977. |
C9H9N3O3W (cr) = 0.5 (g) + 0.5
(cr) + 3
(g)
By formula: C9H9N3O3W (cr) = 0.5C6O6W (g) + 0.5W (cr) + 3C2H3N (g)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 46.6 | kcal/mol | TD-HFC | Adedeji, Connor, et al., 1978 | The value for the reaction enthalpy corresponds to the thermal decomposition experiments and leads to -99.2 kcal/mol for the enthalpy of formation of W(CO)3(MeCN)3(cr). The value -405.0±12.0 was recommended by the authors Adedeji, Connor, et al., 1978 |
Gas phase ion energetics data
Go To: Top, Reaction 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:
L - Sharon G. Lias
Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess
View reactions leading to W+ (ion structure unspecified)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| IE (evaluated) | 7.98 | eV | N/A | N/A | L |
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 0.816265 ± 0.000074 | LPD | Lindahl, Andersson, et al., 2010 | Given: 6583.6(6) cm-1; B |
| 0.8170 ± 0.0040 | LPES | Bengali, Casey, et al., 1992 | B |
| 0.8160 ± 0.0080 | LPES | Feigerle, Corderman, et al., 1981 | B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 7.98 | EVAL | Lide, 1992 | LL |
| 7.49 ± 0.08 | EI | Rauh and Ackermann, 1979 | LLK |
| 7.98 | S | Moore, 1970 | RDSH |
| 7.98 | S | Moore, 1970 | RDSH |
References
Go To: Top, Reaction 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.
Al-Takhin, Connor, et al., 1984
Al-Takhin, G.; Connor, J.A.; Pilcher, G.; Skinner, H.A.,
J. Organomet. Chem., 1984, 265, 263. [all data]
Adedeji, Brown, et al., 1975
Adedeji, F.A.; Brown, D.L.S.; Connor, J.A.; Leung, M.; Paz-Andrade, I.M.; Skinner, H.A.,
J. Organometal. Chem., 1975, 97, 221. [all data]
Hieber and Romberg, 1935
Hieber, W.; Romberg, E.,
Z. Anorg. Allg. Chem., 1935, 221, 321. [all data]
Rezukhina and Shvyrev, 1952
Rezukhina, T.N.; Shvyrev, V.V.,
Vestn. Moskov. Univ., 1952, 7, 41. [all data]
Daamen, Ernsting, et al., 1979
Daamen, H.; Ernsting, J.M.; Oskam, A.,
Thermochim. Acta, 1979, 33, 217. [all data]
Boxhoorn, Ernsting, et al., 1980
Boxhoorn, G.; Ernsting, J.M.; Stufkens, D.J.; Oskam, A.,
Thermochim. Acta, 1980, 42, 315. [all data]
Pilcher, Ware, et al., 1975
Pilcher, G.; Ware, M.J.; Pittam, D.A.,
J. Less-Common Met., 1975, 42, 223. [all data]
Barnes, Pilcher, et al., 1974
Barnes, D.S.; Pilcher, G.; Pittam, D.A.; Skinner, H.A.; Todd, D.,
J. Less-Common Met., 1974, 38, 53. [all data]
Pedley and Rylance, 1977
Pedley, J.B.; Rylance, J.,
Computer Analysed Thermochemical Data: Organic and Organometallic Compounds, University of Sussex, Brigton, 1977. [all data]
Tel'noi and Rabinovich, 1977
Tel'noi, V.I.; Rabinovich, I.B.,
Russ. Chem. Rev., 1977, 46, 689. [all data]
Adedeji, Connor, et al., 1978
Adedeji, F.A.; Connor, J.A.; Demain, C.P.; Martinho Simões, J.A.; Skinner, H.A.; Zafarani- Moattar, M.T.,
J. Organometal. Chem., 1978, 149, 333. [all data]
Lindahl, Andersson, et al., 2010
Lindahl, A.O.; Andersson, P.; Diehl, C.; Forstner, O.; Klason, P.; Hanstorp, D.,
The electron affinity of tungsten,
Eur. Phys. J. D, 2010, 60, 2, 219-222, https://doi.org/10.1140/epjd/e2010-00199-y
. [all data]
Bengali, Casey, et al., 1992
Bengali, A.A.; Casey, S.M.; Cheng, C.-L.; Dick, J.P.; Fenn, T.; Villaalta, P.W.; Leopold, D.G.,
Negative Ion Photoelectron Spectroscopy of Coordinatively Unsaturated Group VI Metal Carbonyls: Cr(CO)3, Mo(CO)3, and W(CO)3,
J. Am. Chem. Soc., 1992, 114, 13, 5257, https://doi.org/10.1021/ja00039a043
. [all data]
Feigerle, Corderman, et al., 1981
Feigerle, C.S.; Corderman, R.R.; Bobashev, S.V.; Lineberger, W.C.,
Binding Energies and Structure of Transition Metal Negative Ions,
J. Chem. Phys., 1981, 74, 3, 1580, https://doi.org/10.1063/1.441289
. [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]
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]
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]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
EA Electron affinity IE (evaluated) Recommended ionization energy ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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