| Abstract Scope |
The lacking control of large scale and homogeneous formation of vdW 2D materials MS2, MS and alkali metal sulfide materials M2S in commercial formation processes motivated us to develop a unique synthetic approach to layered 2D materials.
A uniform synthesis route of molecular building blocks for controlled formation of stable precursor classes [M(SEtN(Me)EtS)x] (M = MoIV, WIV, TiIV, x = 2; M = GeII, SnII, x = 1) and [(MSEt)2NMe] (M = Li, Na) was established. Following simple synthetic protocols, the reaction of SNS donor ligand with suitable metal compounds resulted in (air)stable molecular precursors, which enable the targeted formation of homogeneous crystalline 2D MoS2, WS2, TiS2, SnS2, SnS and alkali metal based Li2S and Na2S by thermal decomposition experiments as well as in wet chemical syntheses via microwave assisted decomposition resulting in SnS2 particles. These molecular building blocks provide an extraordinary synthetic approach to a unique molecular precursor class. |