The first crystallographically-characterised Cu(II) xanthate
Abstract The copper(II) xanthate Cu(S2COEt)2·TMEDA (1) (TMEDA = N,N-tetramethylethylenediamine) has been synthesised and is the first structurally-characterised xanthate of copper in the + 2 oxidation state. 1 has an octahedral cis, cis, cis-ligand arrangement about the metal, in which xanthate chelation is markedly asymmetric. Both bulk thermal decomposition and film growth by aerosol-assisted chemical vapour deposition (AACVD) using 1 as precursor lead to the formation of Cu2S.
Synthesis, characterization and antibacterial activities of two nickel(II) complexes with xanthate derivatives and N,N,N′,N′-tetramethylethylenediamine as ligands
Two Ni(II) xanthate complexes of composition [Ni(S2COR)2(tmeda)] (R=Me (1), Et (2); tmeda = N,N,N′,N′-tetramethylethylenediamine) have been synthesized and characterized by physicochemical and spectroscopic methods. Both the complexes are hexa-coordinate with an NiN2S4 core. Methylxanthate adopts an isobidentate coordination mode in complex 1 while ethylxanthate exhibits an anisobidentate binding mode in complex 2. Inter- and intramolecular hydrogen bonds are observed in the crystal structures of both complexes. The antibiotic properties of the complexes were investigated .
Separation, recovery and recycling of a fluorous-tagged nickel catalyst using fluorous solid-phase extraction.
Highly efficient separation, recovery and recycling of the fluorous-tagged catalyst, [Ni[F13C6C(O)CHC(O)C6F13]2], can be achieved with fluorous solid-phase extraction, after the Lewis acid catalysed synthesis of enaminodiones in conventional organic solvents.