New diorganoselenium(II) compounds and their behavior toward late transition metals

Hypervalent diorganoselenium(II) compounds of type [2-(R2NCH2)C6H4][(3,5-dmpz)CH2CH2]Se, [R = Me (1), Et (2), dmpz = dimethylpyrazole] were obtained and structurally characterized. The coordination ability of ligand 1 and that of the related species [(3,5-dmpz)CH2CH2]2Se was investigated in reactions with AuCl(tht), AgOTf and PdCl2.