Synthesis, characterization, and catalytic activity of heterometallic ion-pair Ni/Mn and Ni/Zn complexes

摘要

Two new heterometallic compounds, [Ni(bpy)_3][Mn(NCO)_4]?H_2O (1) and [Ni(phen)_3]_2[Zn (NCO)_4]_2-4DMSO-H_2O (2) [bpy = 2,2'-bipyridine and phen= 1,10-phenanthroline], have been synthesized and characterized. The structures of 1 and 2 were solved by single-crystal X-ray diffraction analysis. The cationic moieties of [Ni(bpy)_3]~(2+) in 1 and [Ni(phen)_3]~(2+) in 2 show octahedral environments around Ni(II), whereas the anionic groups of [Mn(NCO)_4]~(2-) in 1 and [Zn(NCO)_4]~~(2-) in 2 exhibit tetrahedral geometry around the Mn(II) and Zn(II), respectively. Both compounds are catalysts in the H/D exchange of salicylaldehyde in DMSO-d_6 which takes place under mild conditions and short reaction time.