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Studies on the structural diversity of MOFs containing octahedral siloxane-backboned connectors

Studies on the structural diversity of MOFs containing octahedral siloxane-backboned connectors
Studies on the structural diversity of MOFs containing octahedral siloxane-backboned connectors

Four metal–organic frameworks containing hexatopic connectors have been prepared and structurally characterised: [Cd3(L)(DMA)2(H2O)2] (IMP-28), [Ce2(L)(DMF)2(H2O)2] (IMP-29), [Y2(L)(DMF)2(H2O)2] (IMP-30), and [Zn2(L-H2)(4,4′-bipy)2] (IMP-31). All the MOFs have been constructed using the hybrid inorganic–organic siloxane linker hexakis(4-carboxyphenyl)disiloxane (L-H6). In each case, discrete metal-based nodes are cross-linked by the octahedrally disposed connector to afford 3D polymeric structures. The underlying nets in these MOFs have been evaluated through deconstruction of their crystal structures and subsequent topological analysis. Examples of MOFs built from hexatopic linkers, and especially those with octahedral predispositions such as in L, remain scarce and the topologies ascribed to some of these MOFs are unique.

Hybrid materials, Metal–organic frameworks, MOFs, Polytopic linkers, Siloxane
0277-5387
25-32
Delmas, Luke C.
ccaba93d-7e00-49c8-96ce-fd12d719deca
Horton, Peter N.
154c8930-bfc3-495b-ad4a-8a278d5da3a5
White, Andrew J.P.
ac6dd93b-4f6c-491b-a4b1-7059e02f2dc6
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Lickiss, Paul D.
dc0ce1d4-daea-452f-b0ef-77c9c62c5df8
Davies, Robert P.
37552576-6a8d-4dbc-af70-12870f40a048
Delmas, Luke C.
ccaba93d-7e00-49c8-96ce-fd12d719deca
Horton, Peter N.
154c8930-bfc3-495b-ad4a-8a278d5da3a5
White, Andrew J.P.
ac6dd93b-4f6c-491b-a4b1-7059e02f2dc6
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Lickiss, Paul D.
dc0ce1d4-daea-452f-b0ef-77c9c62c5df8
Davies, Robert P.
37552576-6a8d-4dbc-af70-12870f40a048

Delmas, Luke C., Horton, Peter N., White, Andrew J.P., Coles, Simon J., Lickiss, Paul D. and Davies, Robert P. (2019) Studies on the structural diversity of MOFs containing octahedral siloxane-backboned connectors. Polyhedron, 157, 25-32. (doi:10.1016/j.poly.2018.09.050).

Record type: Article

Abstract

Four metal–organic frameworks containing hexatopic connectors have been prepared and structurally characterised: [Cd3(L)(DMA)2(H2O)2] (IMP-28), [Ce2(L)(DMF)2(H2O)2] (IMP-29), [Y2(L)(DMF)2(H2O)2] (IMP-30), and [Zn2(L-H2)(4,4′-bipy)2] (IMP-31). All the MOFs have been constructed using the hybrid inorganic–organic siloxane linker hexakis(4-carboxyphenyl)disiloxane (L-H6). In each case, discrete metal-based nodes are cross-linked by the octahedrally disposed connector to afford 3D polymeric structures. The underlying nets in these MOFs have been evaluated through deconstruction of their crystal structures and subsequent topological analysis. Examples of MOFs built from hexatopic linkers, and especially those with octahedral predispositions such as in L, remain scarce and the topologies ascribed to some of these MOFs are unique.

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Accepted/In Press date: 19 September 2018
e-pub ahead of print date: 27 September 2018
Published date: 1 January 2019
Keywords: Hybrid materials, Metal–organic frameworks, MOFs, Polytopic linkers, Siloxane

Identifiers

Local EPrints ID: 425478
URI: https://eprints.soton.ac.uk/id/eprint/425478
ISSN: 0277-5387
PURE UUID: ae1ad36c-d50f-4659-ac95-7bd3539fdee0
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: 22 Oct 2018 16:30
Last modified: 14 Mar 2019 01:48

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Contributors

Author: Luke C. Delmas
Author: Peter N. Horton ORCID iD
Author: Andrew J.P. White
Author: Simon J. Coles ORCID iD
Author: Paul D. Lickiss
Author: Robert P. Davies

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