A pyramidal Tin(II) dication and its reactivity studies

Publication date: Available online 2 March 2019Source: Journal of Organometallic ChemistryAuthor(s): Ravindra K. Raut, Moumita MajumdarAbstractAn acyclic flexible bis(α-iminopyridine) ligand has been employed for the stabilization of chlorostannyliumylidene and a tin(II) dication. The syntheses involve the abstraction of chloride from the tin dichloride precursor using trimethylsilyl trifluoromethane sulfonate. The apically disposed tin(II) dication exhibits electrophilic behaviour and undergoes transmetallation reaction with GeCl2.dioxane resulting in stabilizing the Ge(II) dication. All the compounds have been characterized by NMR techniques and single crystal X-ray crystallography.Graphical abstractA pyramidal tin(II) dication has been stabilized within an acyclic bis(α-iminopyridine) ligand framework. The apical disposition of the tin(II) dicationic center allows its further reactivity. While the dication is inherently electrophilic, the presence of significant s-character restricts nuclephilicity. The tin(II) diaction undergoes transmetallation with GeCl2.dioxane stabilizing Ge(II) dication.

Source: Journal of Organometallic Chemistry - March 4, 2019 Category: Chemistry Source Type: research