Indium(I) Hexafluoropnictates (InPnF₆; Pn = P, As, Sb)

Abstract

The colourless compounds InPnF 6 (Pn = P, As, Sb), with In I in a solely fluorine environment, were prepared by reacting In metal with PnF 5 (Pn = P) and displacement of the weaker Lewis acid BF 3 from InBF 4 by a stronger one, PnF 5 (Pn = As, Sb), in anhydrous hydrogen fluoride (aHF). The X-ray powder diffraction analyses show that InPF 6 crystallises in cubic unit cell with a = 8.07(2) Å, while InAsF 6 crystallises in a rhombohedral unit cell with a = 7.58(2) and c = 7.90(1) Å. The

Syntheses and Crystal Structures of [H3O]+/M2+ (M = Fe, Zn, Cu, Hg) Salts with [AsF6]–

“…[4] The crystal structure of H 3 OCuF[AsF 6 ] 2 shows some similarity with the crystal structure of CuFAsF 6 . [13] Both of the structures can be described in terms of 1-dimensional infinite [CuF 5 ] n 3nchains of tilted [CuF 6 ] 4octahedra [Cu-FAsF 6 : Є Cu-F-Cu 141.4(2)°; H 3 OCuF(AsF 6 ) 2 : Є Cu-F-Cu 141.1(4)°] that share opposite vertices ( Figure 1). Because of this similarity, the unit cell parameter b (which is coincident with the -Cu-F-Cu-chain directions) for both of the structures is very similar [6.941(3) and 6.9773(4) Å for CuFAsF 6 In CuFAsF 6 the [CuF 5 ] n 3nchains are connected by means of (AsF 4/2 F 2 ) octahedra, where four bridging fluorine atoms are common with four different [CuF 6 ] 4octahedra and the remaining two are terminal ( Figure 2).…”

“…For comparison, the temperature-dependent magnetic susceptibility measurements of CuFAsF 6 , which were published before, [13] have been repeated. Significant antiferromagnetic interactions within the [CuF 5 ] n 3 nchains and departure from Curie-Weiss behaviour with Curie-Weiss tem-perature θ = -290 K were observed.…”

Apparently Regular Octahedral Coordination of Ag(II) in IF6[Ag(SbF6)3]

“…In the limiting case a square-planar coordination may be found. Rare examples of a compressed arrangement are also known [21]. For Cu 2+ there are many examples, where it was initially reported on the basis of the crystallographic data that some hexacoordinated Cu 2+ compounds had regular octahedral coordination [1,2].…”

Univalent Gallium and Indium Phosphane Complexes: From Pyramidal M(PPh3)3+ to Carbene‐Analogous Bent M(PtBu3)2+ (M=Ga, In) Complexes

“…[13,14] Stable In I organometallic compounds include Cp-residues, [15,16] but even monomeric In I molecules with isolated In-C bulky ligand bonds were reported. [17][18][19] Recent additions to In + chemistry have been salts with weakly coordinating anions (WCAs), such as InA C H T U N G T R E N N U N G [PnF 6 ] (Pn = P, As, Sb) [20] and, more notably, the versatile precursor InA C H T U N G T R E N N U N G [OTf], [21] which has subsequently led to the isolation of the first In + -coordination compounds with crown ethers [22] and nitrogen-based donors. [23][24][25] Although arene complexes of Ga + A C H T U N G T R E N N U N G [GaCl 4 ] À have long been known, [26] they are unsuitable for further coordination chemistry owing to their propensity to undergo comproportionation reactions.…”