Dinucleating Schiff base ligand in Zn/4f coordination chemistry: synthetic challenges and catalytic activity evaluation.
作者： Stavroula I. Sampani , Sidonie Aubert , Martin Cattoen , Kieran Griffiths , Alaa Abdul-Sada
DOI: 10.1039/C8DT00538A
关键词:
摘要: Four Zn/4f polynuclear coordination clusters (PCCs) formulated as [ZnII2DyIII2L2(CO3)2(NO3)2] (1), [ZnIIYIIIL(NO3)2(o-van) (MeOH)] (MeOH) [2 and [ZnIILnIIIL(NO3)2Cl(EtOH)] where Ln is Dy (3) Y (4) H2L the dinucleating Schiff base ligand N,N′-bis(3-methoxysalicylidene)cyclohexane-1,2-diamine o-van ortho-vanillin, were prepared fully characterised for first time. These air-stable heterometallic PCCs, obtained in high yields from commercially available materials, shown to remain stable solution their dinuclear [ZnIILnIIIL] form. Their catalytic activity was evaluated various transformations including Friedel–Crafts alkylation of 2-acyl imidazoles with indoles.
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