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

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

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.

1477-9226
10180-10190
Fugu, Mohammed B.
60343fe0-ac92-4d9e-9c87-ce2d4f9efdf7
Ellaby, Rebecca J.
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O'Connor, Helen M.
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Pitak, Mateusz B.
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Klooster, Wim
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Horton, Peter N.
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Coles, Simon J.
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Al-Mashhadani, Mohammed H.
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Perepichka, Igor F.
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Brechin, Euan K.
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Jones, Leigh F.
fdb8562f-36c2-4f8f-9221-947e1d05a45e
Fugu, Mohammed B.
60343fe0-ac92-4d9e-9c87-ce2d4f9efdf7
Ellaby, Rebecca J.
0b21ccab-3a2d-441f-bb52-d71c3f936ba9
O'Connor, Helen M.
d826fdbd-f27d-4b62-b37f-7d4a551ee26b
Pitak, Mateusz B.
eeb6a00f-2291-4376-830f-d30dfd607ed1
Klooster, Wim
64dc0111-f415-4226-9189-45764c0933d9
Horton, Peter N.
154c8930-bfc3-495b-ad4a-8a278d5da3a5
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Al-Mashhadani, Mohammed H.
1f73159b-6843-40a8-829a-7248e2b5c0b6
Perepichka, Igor F.
18b66cd2-1802-48e4-a0d8-5ca3abcfc05c
Brechin, Euan K.
3f928747-2144-43c3-8ac8-9b2013437edc
Jones, Leigh F.
fdb8562f-36c2-4f8f-9221-947e1d05a45e

Fugu, Mohammed B., Ellaby, Rebecca J., O'Connor, Helen M., Pitak, Mateusz B., Klooster, Wim, Horton, Peter N., Coles, Simon J., Al-Mashhadani, Mohammed H., Perepichka, Igor F., Brechin, Euan K. and Jones, Leigh F. (2019) Mono- and ditopic hydroxamate ligands towards discrete and extended network architectures. Dalton Transactions, 48 (27), 10180-10190. (doi:10.1039/c9dt01531k).

Record type: Article

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.

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LFJ-HA-paper-31-5-19 - Accepted Manuscript
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Accepted/In Press date: 4 June 2019
e-pub ahead of print date: 4 June 2019
Published date: 21 July 2019

Identifiers

Local EPrints ID: 433072
URI: https://eprints.soton.ac.uk/id/eprint/433072
ISSN: 1477-9226
PURE UUID: e371f8cc-6676-4fcf-b8a2-eda64a9c83c7
ORCID for Mateusz B. Pitak: ORCID iD orcid.org/0000-0002-3680-7100
ORCID for Peter N. Horton: ORCID iD orcid.org/0000-0001-8886-2016
ORCID for Simon J. Coles: ORCID iD orcid.org/0000-0001-8414-9272

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Date deposited: 07 Aug 2019 16:30
Last modified: 15 Aug 2019 00:50

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Contributors

Author: Mohammed B. Fugu
Author: Rebecca J. Ellaby
Author: Helen M. O'Connor
Author: Mateusz B. Pitak ORCID iD
Author: Wim Klooster
Author: Peter N. Horton ORCID iD
Author: Simon J. Coles ORCID iD
Author: Mohammed H. Al-Mashhadani
Author: Igor F. Perepichka
Author: Euan K. Brechin
Author: Leigh F. Jones

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