Seel, AG;
Swan, H;
Bowron, DT;
Wasse, JC;
Weller, T;
Edwards, PP;
Howard, CA;
(2017)
Electron Solvation and the Unique Liquid Structure of a Mixed-Amine Expanded Metal: The Saturated Li–NH3–MeNH2 System.
Angewandte Chemie - International Edition
, 56
(6)
pp. 1561-1565.
10.1002/anie.201609192.
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Abstract
Metal–amine solutions provide a unique arena in which to study electrons in solution, and to tune the electron density from the extremes of electrolytic through to true metallic behavior. The existence and structure of a new class of concentrated metal-amine liquid, Li–NH3–MeNH2, is presented in which the mixed solvent produces a novel type of electron solvation and delocalization that is fundamentally different from either of the constituent systems. NMR, ESR, and neutron diffraction allow the environment of the solvated electron and liquid structure to be precisely interrogated. Unexpectedly it was found that the solution is truly homogeneous and metallic. Equally surprising was the observation of strong longer-range order in this mixed solvent system. This is despite the heterogeneity of the cation solvation, and it is concluded that the solvated electron itself acts as a structural template. This is a quite remarkable observation, given that the liquid is metallic.
| Type: | Article |
|---|---|
| Title: | Electron Solvation and the Unique Liquid Structure of a Mixed-Amine Expanded Metal: The Saturated Li–NH3–MeNH2 System |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/anie.201609192 |
| Publisher version: | http://dx.doi.org/10.1002/anie.201609192 |
| Language: | English |
| Additional information: | © 2017 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | amines; conducting materials; electron transfer; electronic structure; phase transitions |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1541344 |
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