378762-53-9Relevant articles and documents
Polymetalated aromatic compounds. 1. Synthesis of mono-, Di-, and tripalladated mesitylene derivatives
Vicente, José,Lyakhovych, Mykhaylo,Bautista, Delia,Jones, Peter G.
, p. 4695 - 4699 (2001)
The reaction of 1,3,5-triidomesitylene (C6Me3I3) with a mixture of [Pd(dba)2] and PR3 leads to the mononuclear complexes trans-[Pd(C6Me3I2)I(PR3)2 ] (R = Ph (1), R3 = Me2Ph (2)) or the dinuclear complex [{trans-PdI(PMe2Ph)2}2(μ2- C6Me3I)] (3), depending on the nature of the phosphine, the temperature, and the molar ratio of the reagents. All attempts to prepare trinuclear complexes, using this method of synthesis, were unsuccessful. However, addition of C6Me3I3 to a mixture of [Pd(dba)2] and L2 gives at room temperature [(PdIL2)3(μ3-C6Me3)] (L2 = 2,2′-bipyridine (bpy) (4), 4,4′-di-tert-butyl-2,2′-bipiridine (tbbpy) (5)), even if substoichiometric amounts of Pd were used. Complex 5 does not react with PPh3 or PMe2Ph, but it does react with PMe3 to give [trans-{PdI(PMe3)2}3(μ3- C6Me3)] (6). The crystal structures of 1, 2, and 5 have been determined by X-ray diffraction studies.
