Abstract
A series of Ni(II) dithiolenes derived from maleonitriledithiol (mnt), benzene-1,2-dithiol (bdt), and toluene-3,4-dithiol (tdt) with potentially tridentate P,P,P-ligands bis(2-diphenylphosphino-ethyl)phenylphosphine (triphosI) and 1,1,1-tris-(diphenylphosphino-methyl)-ethane (triphosII) of the [Ni(P,P,P)(dithiol)] type have been synthesized. The compounds have been characterized by elemental analysis, IR and electronic spectroscopies, magnetochemical, and conductivity measurements. Single-crystal X-ray analysis of [Ni(triphosI)(mnt)] confirmed a planar geometry of NiP2S2 chromophore (one of P-atoms is not coordinated). Possible practical applications such as the use of these compounds as anticholinesterase agents were evaluated.
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