SiF4..SiF5 anion

Formula: F₉Si₂^-
Molecular weight: 227.1572
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Other data available:
- Gas phase thermochemistry data
- Ion clustering data
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Reaction thermochemistry data

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Individual Reactions

F₅Si^- + = F₉Si₂^-

By formula: F₅Si^- + F₄Si = F₉Si₂^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	40. ± 8.4	kJ/mol	IMRE	Hiraoka, Nasu, et al., 2000	gas phase
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	21.5	kJ/mol	IMRE	Hiraoka, Nasu, et al., 2000	gas phase

References

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Hiraoka, Nasu, et al., 2000
Hiraoka, K.; Nasu, M.; Minamitsu, A.; Shimizu, A.; Yamabe, S., On the structure and stability of gas-phase cluster ions SiF3+(CO)(n), SiF3OH2+(SiF4)(n), SiF4H+(SiF4)(n), and F- (SiF4)(n), J. Phys. Chem. A, 2000, 104, 36, 8353-8359, https://doi.org/10.1021/jp000525d . [all data]

Notes

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Symbols used in this document:

Δ_rG° Free energy of reaction at standard conditions

Δ_rH° Enthalpy of reaction at standard conditions
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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Δ_rG°	Free energy of reaction at standard conditions
Δ_rH°	Enthalpy of reaction at standard conditions