Krypton hexafluoride

Krypton hexafluoride
Names
Other names
Krypton(VI) fluoride
Identifiers
Properties
Chemical formula
F6Kr
Molar mass 197.788 g·mol−1
Appearance claimed to be white crystalline solid
Related compounds
Related compounds
Xenon hexafluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound

Krypton hexafluoride is an inorganic chemical compound of krypton and fluorine with the chemical formula KrF6. It is still a hypothetical compound.[1]

History

In 1933, Linus Pauling predicted that the heavier noble gases would be able to form compounds with fluorine and oxygen. He also predicted the existence of krypton hexafluoride.[2][verification needed][3] Calculations suggest it would have octahedral molecular geometry.[1]

So far, out of all possible krypton fluorides, only krypton difluoride (KrF2) has actually been synthesized.[citation needed]

References

  1. ^ a b Dixon, David A.; Wang, Tsang-Hsiu; Grant, Daniel J.; Peterson, Kirk A.; Christe, Karl O.; Schrobilgen, Gary J. (1 November 2007). "Heats of Formation of Krypton Fluorides and Stability Predictions for KrF4 and KrF6 from High Level Electronic Structure Calculations". Inorganic Chemistry. 46 (23): 10016–10021. doi:10.1021/ic701313h. ISSN 0020-1669. PMID 17941630.
  2. ^ Pauling, Linus (May 1933). "The Formulas of Antimonic Acid and the Antimonates". Journal of the American Chemical Society. 55 (5): 1895–1900. doi:10.1021/ja01332a016. ISSN 0002-7863.
  3. ^ Williams, Jeffrey H. (28 September 2017). Crystal Engineering: How Molecules Build Solids. Morgan & Claypool Publishers. p. 4–1. ISBN 978-1-68174-625-8. Retrieved 28 March 2023.
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Binary hexafluorides
Known binary hexafluorides
Chalcogen binary hexafluorides
  • SF6
  • SeF6
  • TeF6
  • PoF6
Noble gas binary hexafluorides
  • XeF6
Transition metal binary hexafluorides
  • MoF6
  • TcF6
  • RuF6
  • RhF6
  • WF6
  • ReF6
  • OsF6
  • IrF6
  • PtF6
Actinide binary hexafluorides
  • UF6
  • NpF6
  • PuF6
Predicted binary hexafluorides
Noble gas binary hexafluorides
  • KrF6
  • RnF
    6
Transition metal binary hexafluorides
  • CrF6
  • PdF6
  • AuF6
Actinide binary hexafluorides
  • AmF6
  • CmF6
  • EsF6
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Noble gas compounds
Helium compounds
  • HeH+
  • LiHe
  • Na2He
  • He2
  • He3
Neon compounds
  • None known
Argon compounds
Krypton compounds
Xenon compounds
Xe(0)
  • AuXe4(Sb2F11)2
  • XeH+
Xe(I)
Xe(II)
  • XeF2
  • XeFPtF5
  • XeFPt2F11
  • Xe2F3PtF6
  • XeCl2
  • FXeONO2
  • Xe(ONO2)2
  • Organoxenon(II) compounds
Xe(IV)
  • XeO2
  • XeF4
  • XeOF2
  • N(CH3)4XeF5
  • XeCl4
  • Organoxenon(IV) compounds
Xe(VI)
  • XeO3
  • XeF6
  • XeOF4
  • H2XeO4
  • (NO)2XeF8
Xe(VIII)
  • XeO4
  • H4XeO6
  • XeF8
Radon compounds
Rn(II)
  • RnF2
  • RnFSb2F11
Rn(VI)
  • RnO3
  • RnF
    6
Oganesson compounds (predicted)
Og(0)
  • Og2
Og(I)
  • OgH+
Og(II)
  • OgF2
  • OgCl2
  • OgO
Og(IV)
  • OgF4
  • OgO2
  • OgTs4
Og(VI)
  • OgF6
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Salts and covalent derivatives of the fluoride ion
HF ?HeF2
LiF BeF2 BF
BF3
B2F4
+BO3
CF4
CxFy
+CO3
NF3
FN3
N2F2
NF
N2F4
NF2
?NF5
OF2
O2F2
OF
O3F2
O4F2
?OF4
F2 Ne
NaF MgF2 AlF
AlF3
SiF4 P2F4
PF3
PF5
S2F2
SF2
S2F4
SF3
SF4
S2F10
SF6
+SO4
ClF
ClF3
ClF5
?ArF2
?ArF4
KF CaF
CaF2
ScF3 TiF2
TiF3
TiF4
VF2
VF3
VF4
VF5
CrF2
CrF3
CrF4
CrF5
?CrF6
MnF2
MnF3
MnF4
?MnF5
FeF2
FeF3
FeF4
CoF2
CoF3
CoF4
NiF2
NiF3
NiF4
CuF
CuF2
?CuF3
ZnF2 GaF2
GaF3
GeF2
GeF4
AsF3
AsF5
Se2F2
SeF4
SeF6
+SeO3
BrF
BrF3
BrF5
KrF2
?KrF4
?KrF6
RbF SrF
SrF2
YF3 ZrF3
ZrF4
NbF4
NbF5
MoF4
MoF5
MoF6
TcF4
TcF
5

TcF6
RuF3
RuF
4

RuF5
RuF6
RhF3
RhF4
RhF5
RhF6
PdF2
Pd[PdF6]
PdF4
?PdF6
Ag2F
AgF
AgF2
AgF3
CdF2 InF
InF3
SnF2
SnF4
SbF3
SbF5
TeF4
?Te2F10
TeF6
+TeO3
IF
IF3
IF5
IF7
+IO3
XeF2
XeF4
XeF6
?XeF8
CsF BaF2   LuF3 HfF4 TaF5 WF4
WF5
WF6
ReF4
ReF5
ReF6
ReF7
OsF4
OsF5
OsF6
?OsF
7

?OsF
8
IrF2
IrF3
IrF4
IrF5
IrF6
PtF2
Pt[PtF6]
PtF4
PtF5
PtF6
AuF
AuF3
Au2F10
?AuF6
AuF5•F2
Hg2F2
HgF2
?HgF4
TlF
TlF3
PbF2
PbF4
BiF3
BiF5
?PoF2
PoF4
PoF6
AtF
?AtF3
?AtF5
RnF2
?RnF
4

?RnF
6
FrF RaF2   LrF3 Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
LaF3 CeF3
CeF4
PrF3
PrF4
NdF2
NdF3
NdF4
PmF3 SmF2
SmF3
EuF2
EuF3
GdF3 TbF3
TbF4
DyF2
DyF3
DyF4
HoF3 ErF3 TmF2
TmF3
YbF2
YbF3
AcF3 ThF3
ThF4
PaF4
PaF5
UF3
UF4
UF5
UF6
NpF3
NpF4
NpF5
NpF6
PuF3
PuF4
PuF5
PuF6
AmF2
AmF3
AmF4
? AmF6
CmF3
CmF4
 ?CmF6
BkF3
BkF
4
CfF3
CfF4
EsF3
EsF4
?EsF6
Fm Md No
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