Unexpected reactions of NHC*—Cu<sup>I</sup> and —Ag<sup>I</sup> bromides with potassium thio- or selenocyanate

Tacke, Matthias; Marhöfer, Daniel; Althani, Hessah T.; Müller‐Bunz, Helge

doi:10.1107/s2056989019013719

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“…However, there are few trivalent, dianionic silver complexes of the composition [AgX 3 ] 2– to be found in the literature. Some tri(pseudo)halogenoargentates [X = Cl, Br, I, SCN, SC 6 H 4 - p -Cl, SC 6 H 4 - p -Br] − were structurally characterized. Since phosphoranes represent protonated phosphoranide ions and it is possible to isolate dimeric species (see Scheme ), the chemical behavior of phosphoranide ions resembles that of halide ions; thus they may be regarded as pseudohalide ions .…”

Section: Introductionmentioning

confidence: 99%

Difluorobis(pentafluoroethyl)phosphoranide: A Promising Building Block for Phosphoranidometal Complexes

et al. 2021

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Despite the fact that different metal tetrafluorophosphoranides, M [PF 4 ] (M = Cs, Ag, K), decompose readily, we successfully enhanced the stability of such species by the replacement of two fluorine atoms with electron withdrawing pentafluoroethyl groups. Thus, AgF adds to P(C 2 F 5 ) 2 F, yielding Ag[P(C 2 F 5 ) 2 F 2 ], which served as a starting material for the synthesis of mono-, bis-, and tris[difluorobis(pentafluoroethyl)phosphoranido]silver complexes. Addition of 2,2′-bipyridine allowed for the isolation of stable [Ag(bipy)-{P(C 2 F 5 ) 2 F 2 }], whereas the reaction with the chlorides [NMe 4 ]Cl and CoCl 2 afforded the bis-and trisphosphoranidoargentates, respectively. Altogether, the difluorobis(pentafluoroethyl)phosphoranido moiety serves as a novel, small, noncyclic phosphoranido ligand. It provided access to the first homoleptic phosphoranidometal complex, [Co(NCMe) 6 ][Ag{P(C 2 F 5 ) 2 F 2 } 3 ]•2MeCN, which itself features the unusual structural motif of an [AgX 3 ] 2− ion.

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Section: Introductionmentioning

confidence: 99%

Difluorobis(pentafluoroethyl)phosphoranide: A Promising Building Block for Phosphoranidometal Complexes

et al. 2021

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Unexpected reactions of NHC*—Cu^I and —Ag^I bromides with potassium thio- or selenocyanate

Abstract: This article reports the unexpected reactions of Cu and Ag NHC bromides with potassium thio- or selenocyanates. It contains the first report of the boomerang-shaped [Ag(SCN)3]2− ion.

Cited by 1 publication

References 24 publications

Difluorobis(pentafluoroethyl)phosphoranide: A Promising Building Block for Phosphoranidometal Complexes

Difluorobis(pentafluoroethyl)phosphoranide: A Promising Building Block for Phosphoranidometal Complexes

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Unexpected reactions of NHC*—CuI and —AgI bromides with potassium thio- or selenocyanate

Abstract: This article reports the unexpected reactions of Cu and Ag NHC bromides with potassium thio- or seleno­cyanates. It contains the first report of the boomerang-shaped [Ag(SCN)3]2− ion.

Cited by 1 publication

References 24 publications

Difluorobis(pentafluoroethyl)phosphoranide: A Promising Building Block for Phosphoranidometal Complexes

Difluorobis(pentafluoroethyl)phosphoranide: A Promising Building Block for Phosphoranidometal Complexes

Contact Info

Product

Resources

About

Unexpected reactions of NHC*—Cu^I and —Ag^I bromides with potassium thio- or selenocyanate

Abstract: This article reports the unexpected reactions of Cu and Ag NHC bromides with potassium thio- or selenocyanates. It contains the first report of the boomerang-shaped [Ag(SCN)3]2− ion.