A Non-Topological Mechanism for Negative Linear Compressibility

Simon Parsons; Mark Murrie; Jack Binns; Konstantin Kamenev; Katie Marriott; Garry McIntyre; Stephen Moggach

doi:10.1039/C6CC02489K

A Non-Topological Mechanism for Negative Linear Compressibility

Simon Parsons, Mark Murrie, Jack Binns, Konstantin Kamenev, Katie Marriott, Garry McIntyre, Stephen Moggach

Research output: Contribution to journal › Article › peer-review

Abstract

Negative linear compressibility (NLC), the increase in a unit cell length with pressure, is a rare phenomenon in which hydrostatic compression of a structure promotes expansion along one dimension. It is usually a consequence of crystal structure topology. We show that the source of NLC in the Co(II) citrate metal-organic framework UTSA-16 lies not in framework topology, but in the relative torsional flexibility of Co(II)-centred tetrahedra compared to more rigid octahedra.

Original language	English
Pages (from-to)	7486-7489
Journal	Chemical Communications
Volume	52
Issue number	47
DOIs	https://doi.org/10.1039/C6CC02489K
Publication status	Published - 13 May 2016

Keywords

Negative linear compressibility
coordination chemistry
Metal organic framework
high pressure
CRYSTALLOGRAPHY

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10.1039/C6CC02489K

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2 Finished

Pressure-Tuning Interactions in Molecule-Based Magnets
Parsons, S. & Kamenev, K.
EPSRC
27/01/14 → 19/04/17
Project: Research
Development of Facilities for Single-Crystal Diffraction at High Pressure on KOALA
Parsons, S.
Non-EU other
1/08/12 → 31/07/15
Project: Research

Cite this

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AU - Binns, Jack

AU - Kamenev, Konstantin

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AU - McIntyre, Garry

AU - Moggach, Stephen

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AB - Negative linear compressibility (NLC), the increase in a unit cell length with pressure, is a rare phenomenon in which hydrostatic compression of a structure promotes expansion along one dimension. It is usually a consequence of crystal structure topology. We show that the source of NLC in the Co(II) citrate metal-organic framework UTSA-16 lies not in framework topology, but in the relative torsional flexibility of Co(II)-centred tetrahedra compared to more rigid octahedra.

KW - Negative linear compressibility

KW - coordination chemistry

KW - Metal organic framework

KW - high pressure

KW - CRYSTALLOGRAPHY

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JO - Chemical Communications

JF - Chemical Communications

SN - 1359-7345

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ER -

A Non-Topological Mechanism for Negative Linear Compressibility

Abstract

Keywords

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Pressure-Tuning Interactions in Molecule-Based Magnets

Development of Facilities for Single-Crystal Diffraction at High Pressure on KOALA

Cite this