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Issue 27, 2019
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Mono- and ditopic hydroxamate ligands towards discrete and extended network architectures

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Abstract

A family of mono- and ditopic hydroxamic acids has been employed in the synthesis and structural and physical characterisation of discrete (0D) and (1- and 2-D) extended network coordination complexes. Examples of the latter include the 1-D coordination polymer {[Zn(II)(L3H)2]·2MeOH}n (5; L3H2 = 2-(methylamino)phenylhydroxamic acid) and the 2-D extended network {[Cu(II)(L2H)(H2O)(NO3)]·H2O}n (5; L2H2 = 4-amino-2-(acetoxy)phenylhydroxamic acid). The 12-MC-4 metallacrown [Cu(II)5(L4H)4(MeOH)2(NO3)2]·3H2O·4MeOH (7) represents the first metal complex constructed using the novel ligand N-hydroxy-2-[(2-hydroxy-3-methoxybenzyl)amino]benzamide (L4H3). Variable temperature magnetic susceptibility studies confirm strong antiferromagnetic exchange between the Cu(II) centres in 7. Coordination polymer 5 shows photoluminescence in the blue region (λPL ∼ 421–450 nm) with a bathochromic shift of the emission (∼15–30 nm) from solution to the solid state.

Graphical abstract: Mono- and ditopic hydroxamate ligands towards discrete and extended network architectures

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Publication details

The article was received on 10 Apr 2019, accepted on 04 Jun 2019 and first published on 04 Jun 2019


Article type: Paper
DOI: 10.1039/C9DT01531K
Dalton Trans., 2019,48, 10180-10190

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    Mono- and ditopic hydroxamate ligands towards discrete and extended network architectures

    M. B. Fugu, R. J. Ellaby, H. M. O'Connor, M. B. Pitak, W. Klooster, P. N. Horton, S. J. Coles, M. H. Al-mashhadani, I. F. Perepichka, E. K. Brechin and L. F. Jones, Dalton Trans., 2019, 48, 10180
    DOI: 10.1039/C9DT01531K

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