Tracking of the formation of binuclear nickel complexes of [Ni<inf>2</inf>(µ-O<inf>2</inf>PR¹R²)<inf>2</inf>(bpy)<inf>4</inf>]Br<inf>2</inf> type by ESI and MALDI mass spectrometry

Abstract

© 2017 Elsevier LtdThe formation of binuclear nickel complexes of type [Ni2(µ-O2PR1R2)2(bpy)4]Br2, where R1 = H, R2 = phenyl (Ph), 2,4,6-trimethylphenyl (Mes), 2,4,6-triisopropylphenyl (Tipp) or R1R2 = [sbnd]OCH2CH(Et)NHCH(Ph)[sbnd]; bpy = 2,2′-bipyridine, in solution and their fragmentation behavior have been investigated by ESI and MALDI mass spectrometry. It was found that binuclear cationic fragments [Ni2(µ-O2PR1R2)2(bpy)2Br]+ are characteristic ions displaying the formation of binuclear nickel(II) complexes in solution.