Dizincocene as a Building Block for Novel Zn−Zn-Bonded Compounds?

Abstract

The reaction of decamethyldizincocene Cp*2Zn2 1 with MesnacnacH proceeds with protonation of the Cp* substituent and subsequent formation of the zinc-zinc bonded complex (Mesnacnac)2Zn2 3.

Solid-state and Solution Studies on a β-Diketiminate Zinc Hydride Complex

“…2). Complex 1b is isostructural to the recently reported low-valent complex Mesnacnac 2 Zn 2 [11]. The bridging hydrogen atoms were located in the electron difference map.…”

“…In 1a, the almost planar C(CN) 2 Zn six-membered rings adopt a co-planar orientation, whereas in 1b the rings are twisted by 42.6 • as was observed for [Mes nacnacZn(µ-H)] 2 [5]. As a consequence, the Zn-N bond lengths (1a: 1.971 (2) , which is elongated compared to that in the corre-sponding Zn-Zn bonded complexes Mesnacnac 2 Zn 2 (2.3813(8)Å) [11] and Dippnacnac 2 Zn 2 (2.3586(7)Å) [12]. In contrast, the unusual sodium hydride-bridged complex Ar Zn(µ-H)(µ-Na)ZnAr shows a significantly shorter Zn-Zn bond length (2.352(2)Å), which is essentially the same as observed for the Zn-Zn bonded complex Ar Zn-ZnAr (2.3591(9)Å) [6].…”

Novel Synthetic Pathway for New ZnZn‐Bonded Compounds from Dizincocene

“…[6] In addition, reactions with sterically demanding alcohols [7] and bisA [8] occurred with preservation of the ZnÀZn bond and formation of the corresponding (base-stabilized) Zn I alkoxides and Zn…”

BiZn Bond Formation in Liquid Ammonia Solution: [BiZnBi]4−, a Linear Polyanion that is Iso(valence)‐electronic to CO2

“…[Zn 2 (Mesnacnac) 2 ] was synthesized according to the literature method. [30] [2.2.2]crypt was dried in vacuo. [18]crown-6 was sublimed under dynamic vacuum at 80 8C.…”