Complex array structures formed by metal complexes of N,N ′-p- phenylenedimethylenebis(4-methylpyridin-2-one) 

Abstract

The syntheses of the ‘extended reach’ ligand N,N ′-p- phenylenedimethylenebis(4-methylpyridin-2-one) (L) and of a range of its metal complexes with Mn^II, Co^II, Ni^II, Zn^II, Cd^II, Y^III, and lanthanide ions have been accomplished. X-Ray studies showed that in the compound {[MnL₃](ClO₄)₂}_{+ n} octahedrally co-ordinated manganese centres are connected by L bridges so as to form a three-dimensional array of contiguous rhomboidal ‘boxes’. The analogous compounds with Co^II, Ni^II, Zn^II and Cd^II have the same structure. The polymeric compound {[Cu₄L₅Cl₈]·2MeOH} _n forms a complex array of cross-linked chains containing both four- (distorted tetrahedral) and five-co-ordinate (distorted square pyramidal) copper centres in equal proportions.

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