(PhTe)3−: das anionische Telluranalogon von I3−

Abstract

Das „missing link”︁ zwischen der Feststoff‐Tellurchemie und den Polyhalogenid‐Ionen wird durch die Synthese des nahezu linearen (PhTe)3−‐Ions hergestellt, dessen Struktur gezeigt ist. Tritellurid‐Einheiten sind ein häufig vorkommendes Motiv in der Feststoff‐Tellurchemie und strukturell eng mit den Polyhalogeniden verwandt.

Water Superstructures within Organic Arrays; Hydrogen‐Bonded Water Sheets, Chains and Clusters

“…The Te1‐Te2‐Te3 unit in 5 c forms a nearly linear chain (175.46(3)°). The TeTe distances of 2.981(1) and 3.102(1) Å in this unit are reminiscent of those in the almost linear [Te 3 Ph 3 ] − ion (TeTe 2.939(1) and 3.112(1) Å)24 and the bent [Te 3 Mes 5 ] + ion (2.979(1) and 3.049(1) Å),25 the structures of which have been compared to that of the triiodide ion I 3 − . Indeed, we have described the structure of the iodide salt of the cyclic [(TeP i Pr 2 ) 2 N] + ion in a similar manner, since the donation of electron density from the iodide counterion into the LUMO [σ*(TeTe)] of the cation results in an elongated TeTe bond of 2.840(1) Å 26.…”

Experimental and Theoretical Investigations of Structural Isomers of Dichalcogenoimidodiphosphinate Dimers: Dichalcogenides or Spirocyclic Contact Ion Pairs?

“…The Te1-Te2-Te3 unit in 5c forms a nearly linear chain (1) and 3.112(1) Å) [24] and the bent cation [Te3Mes5] + (2.979 (1) and 3.049(1) Å), [25] whose structures have been compared to that of the triiodide ion I3 -. Indeed, we have described the structure of the iodide salt of the cyclic cation [(TePiPr2)2N] + in a similar manner, since the donation of electron density from the iodide counter-ion into the LUMO [σ * (Te-Te)] of the cation results in an elongated Te-Te bond of 2.840(1) Å.…”