Synthesis and structure of bis(m-terphenyl)zinc (2,6-Mes2 C6 H3)2 Zn

Abstract

The title compound bis(m-terphenyl)zinc (2,6-Mes 2 C 6 H 3 ) 2 Zn was obtained by the metathesis reaction of the lithium organyl 2,6-Mes 2 C 6 H 3 Li with zinc difluoride ZnF 2 and fully characterised by X-ray crystallography.

Structural and Electronic Studies of Substituted m-Terphenyl Group 12 Complexes

“…The stabilization of low-coordinate Group 12 metal complexes exhibiting novel bonding modes and geometries has been explored through the use of sterically demanding ligands. − In contrast to the earliest examples of zinc, cadmium, and mercury dialkyl and diaryl complexes, − which incorporate necessary secondary stabilizing interactions, the bulky m -terphenyl framework , has enabled the isolation of strictly two-coordinate Group 12 systems such as (2,6-Mes 2 C 6 H 3 ) 2 Zn (Mes = 2,4,6-Me 3 C 6 H 2 ). , Other reports include the synthesis of a homologous series of Group 12 M–M-bonded species (2,6-Dipp 2 C 6 H 3 ) 2 M 2 (M = Zn, Cd, Hg; Dipp = 2,6- i -Pr 2 C 6 H 3 ) , and the formation of a Zn–Zr–Zn unit in [(2,6-Tripp 2 C 6 H 3 )­Zn] 2 Zr­(η 5 -C 5 H 5 ) 2 (Tripp = 2,4,6- i -Pr 3 C 6 H 2 ). , …”