Basma, N;
Cullen, PL;
Clancy, AJ;
Shaffer, MSP;
Skipper, NT;
Headen, TF;
Howard, CA;
(2019)
The liquid structure of the solvents dimethylformamide (DMF) and dimethylacetamide (DMA).
Molecular Physics
, 117
(22)
pp. 3353-3363.
10.1080/00268976.2019.1649494.
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Abstract
The liquid structure of the commonly used solvents dimethylformamide (DMF) and dimethylacetamide (DMA)were measured using state-of-the-art state neutron diffraction augmented with isotopic substitution (NDIS) and interpreted with empirical potential structure refinement (EPSR). Both solvents are found to develop rich local ordering with similar local packing densities, though with differences related to their three-dimensional molecular structure. While DMF’s dipole preferentially orientates anti-parallel to maximise hydrogen bonding, DMA favours parallel arrangement maximising non-directional dispersive forces. The highly-developed local orientational structure found in these solvents rationalises their ability to solvate a range of charged and neutral nanomaterials and highlights that the understanding of nanomaterial dispersions is a multi-body problem in which the geometry of the molecule, as well its dipole moment, must be incorporated.
| Type: | Article |
|---|---|
| Title: | The liquid structure of the solvents dimethylformamide (DMF) and dimethylacetamide (DMA) |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1080/00268976.2019.1649494 |
| Publisher version: | https://doi.org/10.1080/00268976.2019.1649494 |
| Language: | English |
| Additional information: | © 2019 The Author(s). This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | Liquid structure, neutron scattering, aprotic solvent, dimethylacetamide, dimethylformamide |
| 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 Chemistry UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10083321 |
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