Hexapalladium cluster: Unique cluster construction reaction of cyclic Pd3(CNC6H3Me2-2,6)6 and linear [Pd3(CNC6H3Me2-2,6)8]2+

Reaction of a triangle Pd(0) complex, Pd3(CNXyl)6 (1; Xyl = 2,6-C6H3Me2), with a dicationic linear trinuclear complex [Pd3(CNXyl)8][PF6]2 (3) afforded a dicationic hexapalladium complex [Pd6(CNXyl)12][PF6]2 (4), while the reaction of 1 with a dicationic dinuclear complex [Pd2(CNXyl)6][PF6]2 (2) resulted in the formation of 3. The molecular structure of the complex 4 was determined by X-ray crystallography and spectroscopic analysis.

Graphical abstractThe synthesis and molecular structure of a homoleptic hexanuclear palladium cluster [Pd6(CNXyl)12][PF6]2 are reported. The hexapalladium complex was prepared by the multiple insertion reactions of Pd(0) fragments, Pd(CNXyl)2, into a dicationic dinuclear complex [Pd2(CNXyl)6][PF6]2. X-ray crystallographic study reveals that two isocyanide ligands coordinate to the hexapalladium core in a μ3-fashion.Figure optionsDownload full-size imageDownload as PowerPoint slide