Guest-Induced Distortions in Urea Inclusion Compounds
This project aims to study distortions from hexagonal symmetry in urea channel inclusion compounds induced by interactions with the guest species. These interactions between guest and channel wall are responsible for fascinating properties such as ferroelasticity. We have obtained single crystal neutron data on a hydrogen-bonded ferroelastic inclusion compound of 2,7-octanedione that is significantly distorted. We now wish to structurally characterise the urea hydrogen bonded network in two further compounds, namely 1,6-dibromohexane and hexadecane. The 1,6-dibromohexane inclusion compounds is also distorted from hexagonal symmetry but there are no apparent hydrogen bonds from the urea to the guest. The hexadecane sample is an undistorted control compound with a regular urea hydrogen bonded network. Combined with our existing (unpublished) data on the dione compound, these two samples will allow us to build up a picture of interactions between guests and host channel in these inclusion compounds and hence understand the fascinating properties that arise.
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STEED Jonathan; LEE Rachael and MASON, Sax A.. (2014). Guest-Induced Distortions in Urea Inclusion Compounds. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-12-308
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