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Negative area compressibility in silver(i) tricyanomethanide

Hodgson, Sarah A.; Adamson, Jasper; Hunt, Sarah J.; Cliffe, Matthew J.; Cairns, Andrew B.; Thompson, Amber L.; Tucker, Matthew G.; Funnell, Nicholas P.; Goodwin, Andrew L.


Sarah A. Hodgson

Jasper Adamson

Sarah J. Hunt

Andrew B. Cairns

Amber L. Thompson

Matthew G. Tucker

Nicholas P. Funnell

Andrew L. Goodwin


The metal–organic framework copper(I) tricyanomethanide, Cu(tcm), undergoes a ferroelastic transition on cooling below Tf = 240 K. Thermal expansion measurements reveal an order-of-magnitude variation in framework flexibility across Tf. The low-temperature phase α-Cu(tcm) exhibits colossal positive and negative thermal expansion that is the strongest ever reported for a framework material. On exposure to acetonitrile, Cu(tcm) undergoes a reconstructive solid-phase transition to acetonitrilocopper(I) tricyanomethanide. This transition can be reversed by heating under vacuum. Infrared spectroscopy measurements are sensitive to the phase change, suggesting that Cu(tcm) may find application in solid-phase acetonitrile sensing.


Hodgson, S. A., Adamson, J., Hunt, S. J., Cliffe, M. J., Cairns, A. B., Thompson, A. L., …Goodwin, A. L. (2014). Negative area compressibility in silver(i) tricyanomethanide. Chemical Communications, 2014(40), 5264-5266.

Journal Article Type Article
Acceptance Date Dec 9, 2013
Online Publication Date Dec 9, 2013
Publication Date May 25, 2014
Deposit Date Dec 20, 2018
Publicly Available Date Apr 3, 2019
Print ISSN 1359-7345
Electronic ISSN 1364-548X
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 2014
Issue 40
Pages 5264-5266
Public URL
Publisher URL!divAbstract
Additional Information : This document is CrossCheck deposited; : Supplementary Information; : Crystal Structure Data; : The Royal Society of Chemistry has an exclusive publication licence for this journal; OPEN ACCESS: The accepted version of this article will be made freely available after a 12 month embargo period; : Received 13 September 2013; Accepted 9 December 2013; Accepted Manuscript published 9 December 2013; Advance Article published 17 December 2013; Version of Record published 22 April 2014


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