tetrafluorogermane
- Formula: F4Ge
- Molecular weight: 148.63
- IUPAC Standard InChIKey: PPMWWXLUCOODDK-UHFFFAOYSA-N
- CAS Registry Number: 7783-58-6
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Germanium tetrafluoride
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Gas phase thermochemistry data
Go To: Top, Gas phase ion energetics data, Ion clustering 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 |
---|---|---|---|---|---|
ΔfH°gas | -284.46 ± 0.12 | kcal/mol | Review | Cox, Wagman, et al., 1984 | CODATA Review value |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 72.16 ± 0.24 | cal/mol*K | Review | Cox, Wagman, et al., 1984 | CODATA Review value |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Ion clustering 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: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
15.5 | PE | Lloyd and Roberts, 1975 | |
15.69 ± 0.02 | PE | Bassett and Lloyd, 1971 | |
16.1 | PE | Lloyd and Roberts, 1975 | Vertical value |
16.06 ± 0.04 | PE | Jonas, Schweitzer, et al., 1973 | Vertical value |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
FGe+ | 23.4 ± 0.4 | ? | EI | Harland, Cradock, et al., 1973 | |
F2Ge+ | 20.7 ± 0.3 | ? | EI | Harland, Cradock, et al., 1973 | |
F3Ge+ | 15.7 ± 0.2 | F | EI | Harland, Cradock, et al., 1973 | |
Ge+ | 29.4 ± 0.2 | ? | EI | Harland, Cradock, et al., 1973 |
Ion clustering data
Go To: Top, Gas phase thermochemistry data, 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: John E. Bartmess
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
By formula: F- + F4Ge = (F- • F4Ge)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 100.0 ± 7.0 | kcal/mol | Ther | Mallouk, Rosenthal, et al., 1984 | gas phase; Fluoride affinities from this method appear to be consistently about 10 kcal/mol too bound |
ΔrH° | >96.70 | kcal/mol | IMRB | Harland, Cradock, et al., 1972 | gas phase |
References
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Ion clustering 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]
Lloyd and Roberts, 1975
Lloyd, D.R.; Roberts, P.J.,
Photoelectron spectra of halides. VII. Variable temperature He(I) and He(II) studies of CF4, SiF4, and GeF4,
J. Electron Spectrosc. Relat. Phenom., 1975, 7, 325. [all data]
Bassett and Lloyd, 1971
Bassett, P.J.; Lloyd, D.R.,
Photoelectron spectra of halides. Part I. Tetrafluorides and tetrachlorides of group IVB,
J. Chem. Soc., 1971, (A), 641. [all data]
Jonas, Schweitzer, et al., 1973
Jonas, A.E.; Schweitzer, G.K.; Grimm, F.A.; Carlson, T.A.,
The photoelectron spectra of the tetrafluoro and tetramethyl compounds of the group IV elements,
J. Electron Spectrosc. Relat. Phenom., 1973, 1, 29. [all data]
Harland, Cradock, et al., 1973
Harland, P.W.; Cradock, S.; Thynne, J.C.J.,
Positive-and negative-ion formation due to the electron bombardment of germanium tetrafluoride,
Int. J. Mass Spectrom. Ion Phys., 1973, 10, 169. [all data]
Mallouk, Rosenthal, et al., 1984
Mallouk, T.E.; Rosenthal, G.L.; Muller, G.; Brusasco, R.; Bartlett, N.,
Fluoride ion affinities of GeF4 and BF4 from thermodynamic and structural data for (SF2)2GeF6, ClO2GeF5, and ClO2BF4,
Inorg. Chem., 1984, 23, 3167. [all data]
Harland, Cradock, et al., 1972
Harland, P.W.; Cradock, S.; Thynne, J.C.J.,
Positive- and negative-ion formation due to the electron bombardment of germanium tetrafluoride,
Int. J. Mass Spectrom. Ion Phys., 1972, 10, 169. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Ion clustering data, References
- Symbols used in this document:
AE Appearance energy S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.