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Issue 13, 2018
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Dinucleating Schiff base ligand in Zn/4f coordination chemistry: synthetic challenges and catalytic activity evaluation

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Abstract

Four Zn/4f polynuclear coordination clusters (PCCs) formulated as [ZnII2DyIII2L2(CO3)2(NO3)2] (1), [ZnIIYIIIL(NO3)2(o-van) (MeOH)] (MeOH) [2 (MeOH)] and [ZnIILnIIIL(NO3)2Cl(EtOH)] where Ln is Dy (3) and Y (4) and where H2L is the dinucleating Schiff base ligand N,N′-bis(3-methoxysalicylidene)cyclohexane-1,2-diamine and o-van is ortho-vanillin, were prepared and fully characterised for the first time. These air-stable heterometallic PCCs, obtained in high yields from commercially available materials, were shown to remain stable in solution in their dinuclear [ZnIILnIIIL] form. Their catalytic activity was evaluated in various catalytic transformations including the Friedel–Crafts alkylation of 2-acyl imidazoles with indoles.

Graphical abstract: Dinucleating Schiff base ligand in Zn/4f coordination chemistry: synthetic challenges and catalytic activity evaluation

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Publication details

The article was received on 08 Feb 2018, accepted on 22 Feb 2018 and first published on 23 Feb 2018


Article type: Paper
DOI: 10.1039/C8DT00538A
Citation: Dalton Trans., 2018,47, 4486-4493
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    Dinucleating Schiff base ligand in Zn/4f coordination chemistry: synthetic challenges and catalytic activity evaluation

    S. I. Sampani, S. Aubert, M. Cattoen, K. Griffiths, A. Abdul-Sada, G. R. Akien, G. J. Tizzard, S. J. Coles, S. Arseniyadis and G. E. Kostakis, Dalton Trans., 2018, 47, 4486
    DOI: 10.1039/C8DT00538A

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