Crystal and Molecular Structure of Difluorochlorine(III)-hexafluoroarsenate(V), ClF₂AsF₆

Difluorochloronium(III) Fluoridometallates – from Molecular Building Blocks to (Helical) Chains

“…[5][6][7][8] If ClF 3 is used in excess and reacted with a fluoride that has an appreciable fluoride ion affinity, such as AsF 5 or SbF 5 , a difluorochloronium(III) compound is formed. [9,10] With weaker Lewis acids, such as BF 3 and PF 5 , thermally unstable ClF 2 + salts, are formed. [11] This amphoteric character is common for all halogen trifluorides, XF 3 (X = Cl, Br, I).…”

“…C 2v -symmetric XF 2 + cations and square planar D 4h -symmetric [XF 4 ]anions, see Equation (1) and Equation 2and Scheme 1. [9,10,[12][13][14][15][16][17][18][19][20] (1) (2) Scheme 1. Lewis structures of the ClF 2 + cation and the ClF 4 anion.…”

“…Crystal structures were reported for ClF 2 [BF 4 ] and ClF 2 [MF 6 ] (M = Nb, Ta, Ru, Os, As, Sb, Bi). [9,10,[22][23][24][25][26] In the reported crystal structure of ClF 2 [OsF 6 ], a disordered ClF 2 + cation was proposed, which prompted us to redetermine some of the reported crystal structures.…”

Synthesis and Characterization of [Br3][MF6] (M=Sb, Ir), as well as Quantum Chemical Study of [Br3]+ Structure, Chemical Bonding, and Relativistic Effects Compared with [XBr2]+ (X=Br, I, At, Ts) and [TsZ2]+ (Z=F, Cl, Br, I, At, Ts)

“…60, oP80, 60d 8 c 3 a)w ith a = 11.9269 (7), b = 11.5370 (7), c = 12.0640(6) , V = 1660.01(16) 3 , Z = 8a t1 00 K. Interestingly, the compound is not isotypic to the previously reported [Br 3 ] [AsF 6 ]( space group P " 1). [101] We note that the cell volume is ap- [85][86][87][88] [Cl 4 ] + [89] [ClF 2 ] + , [90][91][92] [Cl 2 F] + , [87,93,94] [ClF 4 ] + , [95,96] [99][100][101] [Br 5 ] + [101,102] [BrF 2 ] + , [103,104] [BrF 4 ] + , [105,106] [BrF 6 ] + , [107] [Br 2 F 5 ] + , [12] [Br 3 F 8 ] + [12] [100,108,109] [I 5 ] + , [109] [I 7 ] + (unsure) [110] [I 4 ] 2 + , [111,112] [IF 2 ] + , [114] [ICl 2 ] + , [115,116] [IBrCl] + , [117] [IBr 2 ] + , [118] [I 2 Cl] + (unsure), [119] [I 2 Br] + , [120] [IF 4 ] + , [105] [I 3 Cl 2 ] + , [119] [IF 6 ] + , [121] [I 4 Cl 3 ] + (unsure),…”

19F N.M.R. Study of the Difluorochlorine(III) Cation,

“…ClF: .SbF;) on the basis of the conductivity ofC1F3.SbF5 in ClF,. Although the vibrational spectra of the solid complexes were initially interpreted on the basis of a purely ionic structure, it has since been conclusively shown by Raman spectroscopy (3) and X-ray crystallography (4,5) that there is a significant degree of fluorine bridging in the solid between the ions.…”