Skip to main content
. 2015 Nov 27;45(4):789–899. doi: 10.1039/c5cs00672d

Table 13. Cationic noble gas compounds with weakly coordinating anions.

Cation Anion Class. a Synthesis Comment Ref.
Homopolyatomic cations
[Xe2]+ [Sb4F21] Lewis [XeF]+/Xe + SbF5 First homopoly-atomic cation 27
[Xe4]+ [Sb x F5x+1] Lewis [XeF]+[Sb2F11], SbF5 + Xe No X-ray 696
Metal–nonmetal-cluster complexes
[AuXe4]2+ [Sb2F11] Lewis, Com AuF3, Xe in HF/SbF5 First xenon metal complex, gold(ii) 2 modifications: triclinic and tetragonal 695 and 697
[trans-AuXe2]2+ [SbF6] Com HAuCl4, XeF2, Xe in HF/SbF5 Gold(ii) 695
[cis-AuXe2]2+ [Sb2F11] Com [AuXe4]2+([Sb2F11])2–Xe at RT Gold(ii) 695
[trans-AuXe2F]2+ [SbF6] + [Sb2F11] Com Au, XeF2, Xe in HF/SbF5 Gold(iii) 695
[Au2Xe2F]3+ [SbF6] Com Au, XeF2, Xe in HF/SbF5 Gold(ii) 695
[(F3As)AuXe]+ [Sb2F11] Com AuF3, Xe, AsF3 in HF/SbF5 698
[HgXe]2+ [SbF6] + [Sb2F11] Com HgF2, Xe in HF/SbF5 698
Oxidation state +II
[KrF]+ [MF6] (M = As, Sb, Bi) Lewis KrF2 + MF5 First krypton cation 699
[KrF]+ [AuF6] Lewis KrF2 + Au 682
[Kr2F3]+·KrF2, [Kr2F3]+·1/2KrF2, [Kr2F3]+·[KrF]+ [SbF6][SbF6][AsF6] Lewis KrF2 + MF5 699
[XeF]+ [Sb2F11] Lewis XeF2 + 2SbF5 687
[XeF]+ [RuF6] Lewis XeF2 + RuF5 700
[XeF]+ [AsF6] Lewis XeF2 + AsF5 701
[XeF]+ [N(SO2F)2] Lewis XeF2 + HN(SO2F)2 First Xe–N bond, strong interaction with the anion 702
[XeF]+·HF [Sb2F11] Lewis XeF2 + 2SbF5 27
[XeF]+ [X] = [AsF6], [SbF6], [Sb2F11], [BiF6], [Bi2F11] Lewis XeF2 + AsF5, SbF5, BiF5 Better structures for [XeF]+[X]: [X] = [MF6], [SbF6], [Sb2F11] 691
[Xe2F3]+ [AsF6] Lewis 2XeF2 + AsF5 Monoclinic structure 703 and 704
[Xe2F3]+ [AuF6] Lewis XeF2 + AuF5 686
[Xe2F3]+ [MF6] (M = As, Sb) Com [XeF]+ as starting material [Xe2F3]+[AsF6] trigonal structure 705
[Xe(N(SO2F)2)]+ [Sb3F16] Lewis 3 step synthesis with AsF5 and SbF5 706
[XeC6F5]+ [(F5C6)2BF2] Lewis XeF2 + B(C6F5)3 First Xe–C bond 693
[(MeCN)XeC6F5]+[XeC6F5]+ [BX] (X = CF3, C6F5) [BX] (X = CF3, CN) Lewis, Com XeF2 + C6F5BF2 Salt metatheses with [XeC6F5]+[BF4] 707
[(C6F5Xe)2Cl]+ [AsF6] Other [XeC6F5]+ + TMSCl First Xe–Cl bond 708
[XeOChF5]+ (Ch = Se, Te) [AsF6] Lewis FXeOChF5 + AsF5 First Xe–O bond 709
[XeOTeF5]+·SO2ClF [Sb(OTeF5)6] Other Xe(OTeF5)2 + Sb(OTeF3)3 OTeF5 abstraction 710
[XeCl]+ [Sb2F11] Other [XeF]+ + [Cl] Ligand exchange 711
[XeN(H)TeF5]+ [AsF6] Lewis [F5TeNH3]+[AsF6] + XeF2 First Xe–N(sp3) bond 712
[(F3SN)XeF]+ [AsF6] Com F3SN + [XeF]+ First Xe–N(sp) bond 713
[XeNSF4]+ [AsF6] Other In solid state and HF/BrF5 solution Rearrangement of [F3SNXeF]+[AsF6] 714
[(F3SN)XeNSF4]+ [AsF6] Com [F3SNXeF]+ + F3SN 715
[Xe3OF3]+ [MF6] (M = As, Sb) Other H2O + XeF2/[XeF]+ Hydrolysis to XeFOH followed by a reaction with [Xe2F3]+ 716
Oxidation state +IV
[XeF3]+ [Sb2F11] Lewis XeF4 + 2SbF5 717
[XeF3]+ [BiF6] Lewis XeF4 + BiF5 718
[XeF3]+ [Sb2F11] Lewis XeF4 + SbF5 Better structure 691
[XeF3]+·HF [H5F4]+·2([XeF3]+·HF) [XeF3]+ [Sb2F11][SbF6]·2[Sb2F11][SbF6] Lewis XeOF2·xHF + HF/SbF5 719
Oxidation state +VI
[XeF5]+ [PtF6] Lewis XeF6 + PtF5 First xenon cation structure 688 and 689
[XeF5]+ [AsF6] Lewis XeF6 + AsF5 704
[XeF5]+ [SbF6] Ox [XeF]+[SbF6] + F2 in aHF 692
[XeF5]+ [Sb2F11] Other [XeF5]+[SbF6] Crystals from a O2SbF6/XeF5SbF6 mixture 692
[XeF5]+ [RuF6] Lewis XeF6 + RuF5 700
[XeF5]+ [PdF6]2– Lewis 2XeF6 + PdF4 720
[XeF5]+ [Ti4F19]3– Lewis XeF6 + TiF4 XeF6 from XeF2, F2 and UV radiation 721
[XeF5]+ [m-F(OsO3F2)2][OsO3F2] Lewis XeF6 + (OsO3F2) 690
[XeF5]+ [Cu(SbF6)3] Other [XeF5]+[SbF6] + Cu+[SbF6] in aHF Anion exchange 43
[XeF5]+ [AgF4] Lewis AgF2 + KrF2 + XeF6 in aHF 722
[XeF5]+ [AuF4] Lewis XeF6 + BrF3 AuF3 722
[XeF5]+·XeF2·[XeF5]+·2XeF2 [XeF5]+·1/2XeF2 [AsF6][AsF6][AsF6] Com XeF2 + [XeF5]+[AsF6] 723
[XeF5]+·XeOF4 [SbF6] Lewis XeF6 + [H3O]+[SbF6] 694
[XeF5]+·NO2 + [SbF6] Other [XeF5]+[SbF6] + [NO2]+[SbF6] 43
[Xe2F11]+ [AuF6] Lewis 2XeF6 + AuF5 724
[Xe2F11]+ [OsO3F2] Lewis XeF6 + (OsO3F2) 690
[XeO2F]+[F(XeO2F)2]+ [MF6] (M = As, Sb) [AsF6] Lewis XeO2F2 + MF5 (M = As, Sb) α- and β-modification of [XeO2F]+[SbF6] 694

a Classification according to the introduction (Table 2): Lewis = Lewis acid halogen bond heterolysis, Com = complexation reaction, other = all other reactions not classified.