Tin(II) organosilylamines

Diaminogermylene and Diaminostannylene Derivatives of Gold(I): Novel AuM and AuM2(M = Ge, Sn) Complexes

“…3 These acyclic compounds were soon complemented with some cyclic relatives (N-heterocyclic metalenes), the first stable N-heterocyclic silylenes, 4 germylenes, 5 stannylenes, 6 and plumbylenes 7 being reported in 1994, 1989, 1974, and 1982, respectively. However, despite their early discovery, the transition-metal chemistry of group-14 diaminometalenes 1,2 is currently underdeveloped in comparison with that of diaminocarbenes, 8 whose first stable specimen was isolated much later (1991) 9 than the first diaminometalenes.…”

The role of the bis-trimethylsilylamido ligand, [N{SiMe3}2]−, in main group chemistry. Part 2: Structural chemistry of the metallic p-block elements

“…Early work with Sn(II) led to the isolation and structural characterization (gaseous-and solid-states) of the monomeric stannylene compound, Sn(N{SiMe 3 } 2 ) 2 (105) [8,9,60,91]. Despite being known for over 40 years, new experimental results that further our understanding of this compound continue to be described, with a recent combined 119 Sn NMR and DFT study on the complexation of this compound to solvent molecules (with -or -coordinating properties) and metal fragments [92].…”

“…However, it was likely the almost simultaneous report of the homoleptic stannylene, Sn(N{SiMe 3 } 2 ) 2 , by the groups of Lappert [8] and Zuckerman [9] in 1974 that contributed to the development of this ligand in main-group coordination chemistry.…”

1,8-Bis(silylamido)naphthalene complexes of magnesium and zinc synthesised through alkane elimination reactions

“…These properties have seen 1,8-diamidonaphthalene ligands used in the stabilisation of lanthanoid metal complexes. 7 Additional steric bulk can be achieved through further modification to include sterically demanding silyl groups, and the resulting 1,8-bis(silylamido)naphthalene ligands have been utilised in the isolation of a number of main group complexes, including with lithium, [8][9][10][11] mixed metal compounds, 8,9 Group 13, 12-15 tin, 12,16,17 and bismuth. 18,19 Examples of transition metal complexes featuring these bidentate ligands have come from our research group 20,21 and from others who have developed Ti and Zr complexes which are promising olefin polymerisation catalysts.…”